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SKY77521 TX-RX FEM for Quad-Band GSM / GPRS / EDGE - Triple-Band WCDMA Antenna Switch Support
Applications
* Quad-band cellular handsets encompassing - Class 4 GSM850/900 - Class 1 DCS1800 PCS1900 - Class 12 GPRS multi-slot operation - EDGE polar modulation - Triple band WCDMA antenna switch support
Description
SKY77521 is a transmit and receive Front End Module (FEM) designed in a very low profile (1 mm), compact form factor for quad-band cellular handsets comprising GSM850/900, DCS1800, and PCS1900 operation -- a complete transmit VCO-to-Antenna and Antenna-toreceive SAW filter solution. The FEM also supports Class 12 General Packet Radio Service (GPRS) multi-slot operation and EDGE Polar Modulation. WCDMA switch-through support is provided by three dedicated high-linearity ports. The module consists of a GSM850/900 PA and DCS1800/PCS1900 PA block, impedancematching circuitry for 50 input and output impedances, TX harmonic filtering, high linearitylow insertion loss switches, and a CMOS Power Amplifier Control (PAC) block. A custom silicon integrated circuit contains decoder circuitry to control the RF switch while providing a low current external control interface. Fabricated in InGaP/GaAs, the Heterojunction Bipolar Transistor (HBT) PA blocks support the GSM850/900 bands and DCS1800/PCS1900 bands. Both PA blocks share common power supply pads to distribute current. The output of the PA block and the outputs to the seven receive pads connect to the antenna pad through a highly linear antenna switch. The InGaP/GaAs die, switch die, Silicon (Si) controller die, and passive components are mounted on a multi-layer laminate substrate and the entire assembly is encapsulated with plastic overmold. RF input and output ports of the SKY77521 are internally matched to a 50 load to reduce the number of external components for a quad-band design. Extremely low leakage current (10 A, typical) of the FEM maximizes handset standby time. Band selection and control of transmit and receive RF signal flows are performed by use of four external control pads. See Figure 1 shown below. Mode of operation TX, RX, Band (GSM850, GSM900, DCS, PCS, and UMTS) is controlled with 4 logic inputs: BS1, BS2, Mode, and Enable. Proper timing of the TXEN input and the VAPC input ensures high isolation between the antenna and TX-VCO while the VCO is being tuned prior to the transmit burst. The Enable input controls the initial turn-on of the PAC circuitry to minimize battery drain. The integrated power amplifier control (PAC) function provides envelope amplitude control by reducing sensitivity to input drive, temperature, power supply, and process variation.
Features
* Small outline: 7 mm x 6 mm * Very low profile: 1 mm max. * 30-pad package * Low input power range - 0 to 6 dBm * High efficiency - GSM850 40% - GSM900 40% - DCS 34% - PCS 34% * TX-VCO-to-antenna and antennato-RX-SAW filter RF interface * TX harmonics below -35 dBm * Wideband envelop control path * Input/Output matching 50 internal * Low APC current: 20 A * High impedance control inputs 15 A, typical
Skyworks offers lead (Pb)-free, RoHS (European Parliament for the Restriction of Hazardous Substances) -compliant packaging.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200522AB * Skyworks Proprietary and Confidential Information * Products and Product Information are Subject to Change Without Notice. * August 23, 2007
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SKY77521 TX-RX FEM FOR QUAD-BAND GSM / GPRS / EDGE - TRIPLE BAND WCDMA www..com ANTENNA SWITCH SUPPORT
Figure 1. SKY77521 Functional Block Diagram
Electrical Specifications
The following tables list the electrical characteristics of the SKY77521 Front-End Module. Table 1 lists the absolute maximum ratings and Table 2 shows the recommended operating conditions. Table 3 through Table 14 list the electrical characteristics of the SKY77521 for modes GSM850, GSM900, DCS1800 and PCS1900, including control logic descriptions for the various modes. Table 2 is a suggested timing diagram for the SKY77521 and Figure 6 shows an application schematic. The SKY77521 is a static-sensitive electronic device and should not be stored or operated near strong electrostatic fields. Detailed information on device dimensions, pad descriptions, packaging and handling can be found in later sections of this data sheet.
Table 1. Absolute Maximum Ratings 1
Parameter Supply Voltage for 1s, (measured to ground) DC Continuous Current During Burst Burst Duty Cycle Input Power Case Temperature Operating Storage Human Body Model -All Ports Electrostatic Discharge (ESD) Machine Model -All Ports Charged Device Model -All Ports VBATT IBATT dB PIN TCASE TSTG JESD22-A114-C JESD22-A115-A JESD22-C101-A Symbol Minimum -- -- -- -- -30 -55 -- -- -- -- -- -- -- Maximum 7 2.5 50 14.5 +100 +125 TBD TBD TBD 8 (Direct Contact) 15 (Air Discharge) J-STD-020C 3/260 100:1 kV C C -- V Units V A % dBm
o
C
Human Body Model -ANT and VBATT Ports JESD22-A114-C Reflow Solder Temperature Moisture Sensitivity Level Voltage Standing Wave Ratio
1
TSOLDER MSL VSWR
Beyond which the device may be damaged. Assumes only one parameter is set at limit at a time with all other parameters set at nominal value. Applied voltage must be current-limited to specified range. The limits shall be valid for all bands: 850-, EGSM-, DCS- and PCS-bands.
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SKY77521 TX-RX FEM FOR QUAD-BAND GSM / GPRS / EDGE - TRIPLE WCDMA BAND ANTENNA SWITCH SUPPORT Table 2. Recommended Operating Conditions
Parameter Supply Voltage Supply Current 1-Slot (12.5% duty cycle Operating Case Temperature (bottom surface of package) 2-Slot (25% duty cycle) 3-Slot (37.5% duty cycle) 4-Slot ( 50% duty cycle)
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Symbol VBATT IBATT
Minimum 3.0 0 -20
Typical 3.6 -- -- -- -- --
Maximum 4.6 1 2.0 1 +100 +100 +85 +85
Unit V A
TCASE
-20 -20 -20
C
In open loop operation, for charging conditions with VCC > 4.6 V, derate ICC linearly down to 0.5 A max. at VCC = 5.5 V.
Table 3. SKY77521 Interface Impedances
Parameter Impedance System for All RF Ports Impedance on TXEN Port Impedance on BS1 Port Impedance on BS2 Port Impedance on MODE Port Impedance on VAPC Port ZRF ZTXEN ZBS1 ZBS2 ZMODE ZVAPC Symbol Minimum -- -- -- -- -- -- Typical 50 200 200 200 200 200 Maximum -- -- -- -- -- -- Units k k k k k
Table 4. SKY77521 Modes and Functions
Mode Standby (IDLE) Pre-Transmit Transmit Receive Parameter OFF state for radio where Radio current consumption is minimized. BS1, BS2 and TXEN are low and circuits are disabled. VAPC < 0.2 V. TXEN is high for 10 s before transmit ramp while transitioning control bits into desired TX mode. VAPC begins its ramp-up and controls the output power of the PA. Once the ramp is completed, VAPC ramps down to 0. Receive mode. TXEN must be asserted high simultaneously or before BS1 or BS2 when transitioning from Standby mode to any RX state to avoid TX glitch. Maximum Current 10 A 100 A IPA 150 A
Table 5. SKY77521 Mode Control Logic
Input Control Bits Mode TXEN Standby TX_LOW BAND TX_HIGH BAND TBD TBD RX1 RX2 RX3 RX4 WCDMA1 WCDMA2 WCDMA3 0 0 0 0 0 1 1 1 1 0 0 0 MODE 0 0 0 1 1 X X X X 0 1 1 BS1 0 0 1 0 1 0 0 1 1 1 0 1 BS2 0 1 1 1 1 0 1 1 0 0 0 0
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
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SKY77521 TX-RX FEM FOR QUAD-BAND GSM / GPRS / EDGE - TRIPLE BAND WCDMA www..com ANTENNA SWITCH SUPPORT Table 6. SKY77521 Logic Control Levels (TXEN, BS1, BS2) 1
Parameter Symbol Low High VIL VIH Minimum -0.3 1.2 Typical -- -- Maximum 0.55 VBATT Units V
Input Logic Level
1
Temperature range = -20 to +85 oC, unless otherwise specified.
Figure 2. SKY77521 Suggested Timing Diagram
Table 7. SKY77521 Transmit Operating Mode 1
Parameter Burst Duty Cycle Supply Voltage Range Continuous Output Current Range During Burst Amplitude Control Voltage
1
Symbol B VBATT IBATT VAPC
Minimum 12.5 (1 slot) 3.0 0 --
Typical -- 3.6 -- --
Maximum 50 (4 slots) 4.6 See Electrical Characteristics 1.5
Units % V A V
Temperature range = -20 C to +85 C unless otherwise specified.
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SKY77521 TX-RX FEM FOR QUAD-BAND GSM / GPRS / EDGE - TRIPLE WCDMA BAND ANTENNA SWITCH SUPPORT Table 8. SKY77521 Electrical Characteristics GSM850/900 1
GMSK Mode Parameter Frequency Range Input Power Supply Voltage Supply Current GSM850 GSM900 PIN VBATT ICC VBATT = 3.6 V TCASE = +25 C No input power VAPC = 0 V VBATT = 3.6 V PIN = 6 dBm POUT = 33.5 dBm TCASE = +25 C BW = 3 MHz 5 dBm POUT 33.5 dBm BW = 3 MHz 5 dBm POUT 33.5 dBm VBATT = 3.6 V TCASE = +25 C Load VSWR of 5:1 for all phases. PIN = 0 dBm VBATT = 3.6 V TCASE = +25 C PIN = 0 dBm VBATT = 3.3 V PIN = 0 dBm VBATT = 3.0 V POUT 33.5 dBm PIN = -15 dBm TXEN = high All combinations of the following parameters: PIN = min. to max. VBATT = 3.0 to 4.6 V Load VSWR = 15:1, all phase angles All combinations of the following parameters: PIN = min. to max. VBATT = 3.0 to 4.6 V and VBATT = 7.0 V 1 s Load VSWR = 100:1, all phase angles. f0 + 20 MHz (869-894 MHz) f0 + 20 MHz (935-960 MHz) GSM 900 PNOISE_900 f0 + 10 MHz (925-935 MHz) 1805 - 1880 MHz Phase Change Phase Moulation Accuracy
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Symbol f
Conditions -- -- -- --
Minimum 824 880 0 3.0 --
Typical -- -- -- 3.6 --
Maximum 849 915 6 4.6 2.0 10 standby 100 pre-TX
Unit MHz dBm V A
Leakage Current
--
--
A
Power Added Efficiency
PAE
--
38
--
%
2f0 to 15f0 Harmonics 2f0 to 7f0
--
-35
-34 dBm
--
-31
-30
POUT Output power
33.5
34.0
-- dBm
POUT_DEG 1 POUT_DEG 2
31.5 30.5 -- --
-- -- -- -45
-- -- 2:1 -40
Input VSWR Isolation
IN
dBm
Stability
Stab
No parasitic oscillation > -36 dBm
Load Mismatch
Load
No module damage or permanent degradation
GSM 850 Noise Power (TCASE = +25 C) (VBATT = 3.6 V)
PNOISE_850
-- -- -- -- -- --
-- -- -- -- -- --
-84.5 -84.5 -74.0 -78.0 2 2 /dB degrees dBm
POUT = 5 to 33.5 dBm VAPC = sawtooth signal f = 2166 Hz
phase, RMS
RMS phase error
Unless otherwise noted: 50 system, pulsed operation with pulse width 2308 s duty cycle 4:8, TCASE = -20 C to +85 C, VBATT = 3.0 V to 4.6 V. Terminate all unused RF ports with 50 during test.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
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SKY77521 TX-RX FEM FOR QUAD-BAND GSM / GPRS / EDGE - TRIPLE BAND WCDMA www..com ANTENNA SWITCH SUPPORT Table 9. SKY77521 Electrical Characteristics GSM 850/900 1
EDGE Mode
Parameter Frequency Range Input Power Supply Voltage Supply Current EDGE 850 EDGE 900 PIN VBATT ICC f
Symbol
Conditions -- -- -- -- VBATT = 3.6 V TCASE = +25 C No input power VAPC = 0 V VBATT = 3.6 V PIN = 6 dBm POUT = 28 dBm TCASE = +25 C VBATT = 3.6 V PIN = 6 dBm POUT = 28 dBm TCASE = +25 C Load = 50 BW = 3MHz 5 dBm POUT 28 dBm BW = 3 MHz 5 dBm POUT 28 dBm VBATT = 3.6 V TCASE = +25 C Load: VSWR of 5:1 for all phases. VBATT = 3.6 V TCASE = +25 C PIN = 0 dBm VBATT = 3.3 V PIN = 0 dBm VBATT = 3.0 V POUT 28 dBm PIN = -15 dBm TXEN = high All combinations of the following parameters: PIN = min. to max. VBATT = 3.0 to 4.6 V Load VSWR = 15:1, all phase angles All combinations of the following parameters: PIN = min. to max. VBATT = 3.0 to 4.6 V and VBATT = 7.0 V 1 s Load VSWR = 100:1, all phase angles. f0 + 20 MHz (869-894 MHz) fo + 20 MHz (935-960 MHz)
Minimum 824 880 0 3.0 --
Typical -- -- -- 3.6 --
Maximum 849 915 6 4.6 2.0 10 standby 100 pre-TX
Unit MHz dBm V A
Leakage Current
--
--
A
Power Added Efficiency
PAE
--
18
--
%
Supply Current
ICC
--
TBD
--
mA
2f0 to 15f0 Harmonics 2f0 to 7f0
--
-35
-34 dBm
--
-31
-30
POUT Output Power POUT_DEG 1 POUT_DEG 2 Input VSWR Isolation IN
31.7 29.5 28.5 -- --
-- -- -- -- -45
-- -- -- 2:1 -40 dBm dBm
Stability
Stab
No parasitic oscillation > -36 dBm
Load Mismatch
Load
No module damage or permanent degradation
GSM 850 Noise Power (TCASE = +25 C) (VBATT = 3.6 V)
PNOISE_850
-- -- -- --
-- -- -- --
-84.5 -84.5 -74.0 -78 dBm
GSM 900
PNOISE_900
fo + 10 MHz (925-935 MHz) 1805-1880 MHz
1
Unless otherwise noted: 50 system, pulsed operation with pulse width 2308 s duty cycle 4:8, TCASE = -20 C to +85 C, VBATT = 3.0 V to 4.6 V. Terminate all unused RF ports with 50 during test.
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SKY77521 TX-RX FEM FOR QUAD-BAND GSM / GPRS / EDGE - TRIPLE WCDMA BAND ANTENNA SWITCH SUPPORT
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Typical AM/AM Slope
GSM850 (824 MHz, 837 MHz, 849 MHz) VBATT = 3.6 V; PIN = 0, 3, 6 dBm; T = +25 C VOUT / VAPC vs. POUT (dBm) GSM900 (880 MHz, 900 MHz, 915 MHz) VBATT = 3.6 V; PIN = 0, 3, 6 dBm; T = +25 C VOUT / VAPC vs. POUT (dBm)
12 10
12 10
VOUT / VAPC (V / V)
8 6 4 2 0 -15
VOUT / VAPC (V / V)
-5 10 15 20 25 30
8 6 4 2 0 -15
-10
0
5
-10
-5
0
5
10
15
20
25
30
POUT (dBm)
POUT (dBm)
Typical AM/PM Response
GSM850 (824 MHz, 837 MHz, 849 MHz) VBATT = 3.6 V; PIN = 0, 3, 6 dBm; T = +25 C Phase vs. POUT (dBm) GSM900 (880 MHz, 900 MHz, 915 MHz) VBATT = 3.6 V; PIN = 0, 3, 6 dBm; T = +25 C Phase vs. POUT (dBm)
50 40 30 20 10 0 -10 -20 -30 -40 -50 -15 -10
50 40 30 20 10 0
Phase (deg)
Phase (deg)
-5 0 5 10 15 20 25 30
-10 -20 -30 -40 -50 -15 -10 -5 0 5 10 15 20 25 30
200010_003
POUT (dBm)
POUT (dBm)
Figure 3. Typical Slope and Response Charts for Low Band - SKY77521 TX-RX Front-End Module
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SKY77521 TX-RX FEM FOR QUAD-BAND GSM / GPRS / EDGE - TRIPLE BAND WCDMA www..com ANTENNA SWITCH SUPPORT Table 10. SKY77521 Electrical Characteristics GSM 1800/1900 1
GMSK Mode
Parameter Frequency Range Input Power Supply Voltage Supply Current GSM1800 (DCS) GSM1900 (PCS) PIN VBATT ICC f
Symbol
Conditions -- -- -- -- -- VBATT = 3.6 V TCASE = +25 C No input power VAPC = 0 V VBATT = 3.6 V PIN = 6 dBm POUT = 30.5 dBm TCASE = +25 C BW = 3 MHz 0 dBm POUT 30.5 dBm POUTDEG 50 ohm BW = 3 MHz 0 dBm POUT 30.5 dBm VBATT = 3.6 V TCASE = +25 C Load VSWR = 5:1 for all phases. VBATT = 3.6 V TCASE =+25 C PIN = 0 dBm VBATT = 3.3 V PIN = 0 dBm VBATT = 3.0 V POUT 30 dBm PIN = -20 dBm TXEN = high All combinations of the following parameters: PIN = min. to max. VBATT = 3.0 to 4.6 V Load VSWR = 15:1, all phase angles All combinations of the following parameters: PIN = min. to max. VBATT = 3.0 to 4.6 V and VBATT = 7.0 V 1 s Load VSWR = 100:1, all phase angles. f0 + 20 MHz
Minimum 1710 1850 0 3.0 --
Typical -- -- -- 3.6 --
Maximum 1785 1910 6 4.6 1.4 10 standby 100 pre-TX
Unit MHz dBm V A
Leakage Current
--
--
A
Power Added Efficiency
PAE
--
33
--
%
2f0 to 7f0 Harmonics 2f0 to 3f0
--
-35
-34 dBm
--
-31
-30
POUT Output Power POUT_DEG 1 POUT_DEG 2 Input VSWR Isolation IN
30.5 28.5 27.5 -- --
31.0 -- -- -- -55
-- -- -- 2:1 -52 dBm dBm
Stability
Stab
No parasitic oscillation >-36 dBm
Load Mismatch
Load
No module damage or permanent degradation
-- -- -- -- -- -- --
-- -- -- -- -- -- --
-78.0 -84.5 -74.0 -78.0 -84.5 2 2 degrees /dB dBm
Noise Power (TCASE = +25 C) (VBATT = 3.6 V)
GSM 1800
PNOISE_DCS
935-960 MHz 925-935 MHz
GSM 1900 Phase Modulation Accuracy Phase Change
1
PNOISE_PCS
fo + 20 MHz 869-894 MHz
phase, RMS
RMS phase error POUT = 0 to 30.0 dBm VAPC = sawtooth signal f = 2166 Hz.
Unless otherwise noted: 50 system, pulsed operation with pulse width 2308 s, duty cycle 4:8, TCASE = -20 C to +85 C, VBATT = 3.0 V to 4.6 V. Terminate all unused RF ports with 50 during test.
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SKY77521 TX-RX FEM FOR QUAD-BAND GSM / GPRS / EDGE - TRIPLE WCDMA BAND ANTENNA SWITCH SUPPORT Table 11. SKY77521 Electrical Characteristics GSM 1800/1900 1
EDGE Mode Parameter Frequency Range Input Power Supply Voltage Supply Current GSM1800 (DCS) GSM1900 (PCS) PIN VBATT ICC VBATT = 3.6 V TCASE = +25 C No input power VAPC = 0 V VBATT = 3.6 V PIN = 6 dBm POUT = 27 dBm TCASE = +25 C VBATT = 3.6 V PIN = 6 dBm POUT = 27 dBm TCASE = +25 C Load = 50 BW = 3 MHz 0 dBm POUT 27 dBm BW = 3 MHz 0 dBm POUT 27 dBm VBATT = 3.6 V TCASE = +25 C Load VSWR = 5:1, all phases. VBATT = 3.6 V TCASE = +25 C PIN = 0 dBm VBATT = 3.3 V PIN = 0 dBm VBATT = 3.0 V POUT 26.3 dBm PIN =-20 dBm TXEN = high All combinations of the following parameters: PIN = min. to max. VBATT = 3.0 to 4.6 V Load VSWR = 15:1, all phase angles All combinations of the following parameters: PIN = min. to max. VBATT = 3.0 to 4.6 V and VBATT = 7.0 V 1 s. Load VSWR = 100:1, all phase angles. f0 + 20 MHz Noise Power (TCASE = +25 C) (VBATT = 3.6 V) GSM 1800 PNOISE_DCS 935-960 MHz 925-935 MHz GSM 1900
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Symbol f
Conditions -- -- -- --
Minimum 1710 1850 0 3.0 --
Typical -- -- -- 3.6 --
Maximum 1785 1910 6 4.6 1.4 10 standby 100 pre-TX
Unit MHz dBm V A
Leakage Current
--
--
A
Power Added Efficiency
PAE
--
18
--
%
Supply Current
ICC
--
TBD
--
mA
2f0 to 7f0 Harmonics 2f0 to 3f0
--
-35
-34 dBm
--
-31
-30
POUT Output Power POUT_DEG 1 POUT_DEG 2 Input VSWR Isolation IN
30.7 28.5 27.5 -- --
-- -- -- -- -55
-- -- -- 2:1 -52 dBm dBm
Stability
Stab
No parasitic oscillation >-36 dBm
Load Mismatch
Load
No module damage or permanent degradation
-- -- -- -- --
-- -- -- -- --
-78.0 -84.5 -74.0 -78.0 -84.5 dBm
PNOISE_PCS
f0 + 20 MHz 869-894 MHz
Unless otherwise noted: 50 system, pulsed operation with pulse width 2308 s, duty cycle 4:8, TCASE = -20 C to +85 C, VBATT = 3.0 V to 4.6 V. Terminate all unused RF ports with 50 during test.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
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SKY77521 TX-RX FEM FOR QUAD-BAND GSM / GPRS / EDGE - TRIPLE BAND WCDMA www..com ANTENNA SWITCH SUPPORT
Typical AM/AM Slope
GSM1800 (1710 MHz, 1750 MHz, 1785 MHz) VBATT = 3.6 V; PIN = 0, 3, 6 dBm; T = +25 C POUT/PAPC vs. POUT (dBm)
POUT / PAPC (V / V)
10 8 6 4 2 0 -15
10 8 6 4 2 0 -15
GSM1800 (1710 MHz, 1750 MHz, 1785 MHz) VBATT = 3.6 V; PIN = 0, 3, 6 dBm; T = +25 C POUT/PAPC vs. POUT (dBm)
POUT / PAPC (V / V)
-10
-5
0
5
10
15.
20
25
30
-10
-5
0
5
10
15
20
25
30
POUT (dBm)
POUT (dBm)
Typical AM/PM Response
GSM1800 (1710 MHz, 1750 MHz, 1785 MHz) VBATT = 3.6 V; PIN = 0, 3, 6 dBm; T = +25 C Phase vs. POUT (dBm) GSM1900 (1850 MHz, 1880 MHz, 1910 MHz) VBATT = 3.6 V; PIN = 0, 3, 6 dBm; T = +25 C Phase vs. POUT (dBm)
50 40 30 20 10 0
50 40 30 20 10 0
Phase (deg)
-10 -20 -30 -40 -50 -15 -10 -5 0 5 10 15 20 25 30
Phase (deg)
-10 -20 -30 -40 -50 -15 -10 -5 0 5 10 15 20 25 30
POUT (dBm)
POUT (dBm)
200010_004
Figure 4. Typical Slope and Response Charts for High Band - SKY77521 TX-RX Front-End Module
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SKY77521 TX-RX FEM FOR QUAD-BAND GSM / GPRS / EDGE - TRIPLE WCDMA BAND ANTENNA SWITCH SUPPORT
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Table 12. SKY77521 Electrical Characteristics GSM 850/900 - Ports RX1, RX2 1
RX Mode Parameter Frequency Range EGSM RX 850 RX ANT - EGSM RX Insertion Loss ANT - 850 RX EGSM/850 TX-850 RX Leakage from TX-to-RX ports EGSM/850 TX-EGSM RX EGSM/850 TX-DCS RX EGSM/850 TX-PCS RX
1
Symbol f_EGSM RX f_850 RX
Conditions -- -- f_EGSM RX TCASE = +25 C f_850 RX TCASE = +25 C
Minimum 925 869 -- -- --
Maximum 960 894 1.3
Unit MHz
dB 1.3 10 12 12 12 dBm
f_EGSM TX
-- -- --
Unless otherwise noted: 50 system, pulsed operation with pulse width 2308 s, duty cycle 4:8, TCASE = -20 C to +85 C. Terminate all unused RF ports with 50 during test.
Table 13. SKY77521 Electrical Characteristics GSM 1800/1900 - Ports RX3, RX4 1
RX Mode Parameter Frequency range DCS RX PCS RX ANT-DCS RX Insertion Loss ANT-PCS RX DCS/PCS-TX-850 RX Leakage from TX- to RX-ports DCS/PCS-TX-EGSM RX DCS/PCS-TX-DCS RX DCS/PCS-TX-PCS RX
1 2
Symbol f_DCS RX f_PCS RX
Conditions -- -- f_DCS RX TCASE = +25 C f_PCS RX TCASE = +25 C f_DCS TX
Minimum 1805 1930 -- -- -- --
Maximum 1880 1990 1.8 2
Unit MHz
dB 1.8 2 12 12 10 12 dBm
f_PCS TX
-- --
Unless otherwise noted: 50 system, pulsed operation with pulse width 2308 s, duty cycle 4:8, TCASE = -20 C to +85 C. Terminate all unused RF ports with 50 during test. With external shunt capacitor, insertion loss is about 1.4 dBm.
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SKY77521 TX-RX FEM FOR QUAD-BAND GSM / GPRS / EDGE - TRIPLE BAND WCDMA www..com ANTENNA SWITCH SUPPORT Table 14. SKY77521 Electrical Characteristics 1
WCDMA TX-RX Mode
Parameter Frequency Range Insertion Loss WCDMA_TX/RX ANT - WCDMA_TX/RX
Symbol f_WCDMA_TX/RX 824-960 MHz WCDMA_TX/RX 1710-1990 MHz 2110-2170 MHz
Conditions --
Minimum 824 -- -- -- 20 20
Typical -- -- -- -- -- -- -- -- --
Maximum 2170 1.1 1.4 1.5 -- -- -- -- --
Unit MHz dB
WCDMA TX-850 RX WCDMA TX-EGSM RX Isolation WCDMA TX-DCS RX WCDMA TX-PCS RX WCDMA TX-WCDMA TX f_WCDMA_TX POUT 29 dBm BW = 1 MHz 50 ohm f_WCDMA_TX POUT 29 dBm BW = 1 MHz VBATT = 3.6 V TCASE =+25C Load: VSWR of 5:1 for all phases. CW1 and CW2 within WCDMA frequency range with 10 MHz separation and power 0 dBm CW Carrier on WCDMA port: POUT = 20 dBm IM products to be measure at the WCDMA port: BW = 3.84 MHz *See test bench setup in Figure 5 2nd Order Spread WCDMA TX Signal: POUT = 20 dBm IM products to be measure at the WCDMA port: BW = 3.84 MHz *See test bench setup in Figure 5
1
f_WCDMA_TX
20 20 20
dB
Harmonics
2f0 to 6f0
--
-46
-44
dBm
Harmonics at Mismatch
2f0 to 3f0
--
-40
-36
dBm
Input 3rd order intercept at WCDMA inband
IM3_POINT
63.25
--
--
dBm
--
--
-101.5
IM Products
IM_WCDMA
dBm
--
--
-98.5
Unless otherwise noted: 50 system, pulsed operation with pulse width 2308 s, duty cycle 4:8, TCASE = -20 C to +85 C, VBATT = 3.0 V to 4.6 V. Terminate all unused RF ports with 50 during test.
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August 23, 2007 * Skyworks Proprietary and Confidential Information * Products and Product Information are Subject to Change Without Notice. * 200522B
SKY77521 TX-RX FEM FOR QUAD-BAND GSM / GPRS / EDGE - TRIPLE WCDMA BAND ANTENNA SWITCH SUPPORT
ADVANCE DATA SHEET
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RX Circulator Signal Generator fWCDMA TX 50 ohm Load Isolation at fuw Phase Shifter TX Duplex Filter
Filter for fWCDMA TX and fuw
Spectrum Analyzer Circulator Signal Generator fuw ANT Port WCDMA Port PA+
50 ohm Load Isolation at fWCDMA
Figure 5. Test Bench Setup for Evaluation of WCDMA IM Products
200522_005
Figure 6. Application Schematic for the SKY77521
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200522AB * Skyworks Proprietary and Confidential Information * Products and Product Information are Subject to Change Without Notice. * August 23, 2007
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ADVANCE DATA SHEET
SKY77521 TX-RX FEM FOR QUAD-BAND GSM / GPRS / EDGE - TRIPLE BAND WCDMA www..com ANTENNA SWITCH SUPPORT
Package Dimensions and Descriptions
Figure 7 is a mechanical drawing of the pad layout for the SKY77521, a 30-pad leadless quad-band FEM with three WCDMA pass-through ports. Figure 8 provides a recommended phone board layout footprint for the FEM to help the designer attain optimum thermal conductivity, good grounding, and minimum RF discontinuity for the 50-ohm terminals. Figure 9 shows the device pad configuration and the pad numbering convention, which starts with pad 1 in the upper left and increments counterclockwise around the package. Table 15 lists the pad names and signal descriptions. Typical case markings are illustrated in Figure 10.
Figure 7. Dimensional Diagram for 7 x 6 mm, 30-Pad Leadless Package - SKY77521 (All Views)
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 14
August 23, 2007 * Skyworks Proprietary and Confidential Information * Products and Product Information are Subject to Change Without Notice. * 200522B
SKY77521 TX-RX FEM FOR QUAD-BAND GSM / GPRS / EDGE - TRIPLE WCDMA BAND ANTENNA SWITCH SUPPORT
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Figure 8. Phone PCB Layout for 7 x 6 mm, 30-Pad Package - SKY77521 Specific
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200522AB * Skyworks Proprietary and Confidential Information * Products and Product Information are Subject to Change Without Notice. * August 23, 2007
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ADVANCE DATA SHEET
SKY77521 TX-RX FEM FOR QUAD-BAND GSM / GPRS / EDGE - TRIPLE BAND WCDMA www..com ANTENNA SWITCH SUPPORT
Figure 9. SKY77521 Pad Names and Configuration (Top View)
Figure 10. Typical Case Markings
Table 15. SKY77521 Signal Descriptions
Pad 1 1 3 4 5 6 7 8 9 10
1
Name HB_RF_IN LB_RF_IN VAPC VBATT BS2 BS1 TXEN MODE RSVD
Description Input TX Signal 1800-1900 MHz Input TX Signal 850-900 MHz Input Modulating Signal Battery Supply Voltage Band Select 2 Band Select 1 TXEN (0 = TX, 1 = RX) Truepower Mode Enable No Connect
Pad 1 13 14 15 16 17 18 19 20 GND RX4 RX3 RX2 RX1 ANT
Name
Description RX Signals 1805-1990 MHz (869-960 MHz optional)
RX Signals 869-960 MHz (1805-1990 MHz optional) TX-RX Signals 824-2170 MHz
WCDMA1 WCDMA2 WCDMA3 Ground Pad Grid Ground Pad Grid (device underside) WCDMA Signals 824-2170 MHz
Pads 2, 11, 12, 21-30 are ground pads
Package and Handling Information
Because of its sensitivity to moisture absorption, this device package is baked and vacuum-packed prior to shipment. Instructions on the shipping container label must be followed regarding exposure to moisture after the container seal is broken, otherwise, problems relate to moisture absorption may occur when the part is subjected to high temperature during solder assembly. The SKY77521 is capable of withstanding an MSL3/260 C solder reflow. Care must be taken when attaching this product, whether it is done manually or in a production solder reflow environment. If the part is attached in a reflow oven, the temperature ramp rate should not exceed 3 C per second; maximum temperature should not exceed 260 C. If the part is manually attached, precaution should be taken to insure that the part is not subjected to temperatures exceeding 260 C for more than 10 seconds. For details on attachment techniques, precautions, and handling procedures recommended by Skyworks, please refer to Skyworks Application Note: PCB Design and SMT Assembly/Rework, Document Number 101752. Additional information on standard SMT reflow profiles can also be found in the JEDEC Standard J-STD-020. Production quantities of this product are shipped in the standard tape-and-reel format. For packaging details, refer to Skyworks Application Note: Tape and Reel Information - RF Modules, Document Number 101568.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 16
August 23, 2007 * Skyworks Proprietary and Confidential Information * Products and Product Information are Subject to Change Without Notice. * 200522B
SKY77521 TX-RX FEM FOR QUAD-BAND GSM / GPRS / EDGE - TRIPLE WCDMA BAND ANTENNA SWITCH SUPPORT
ADVANCE DATA SHEET
www..com
Technical Information
+4 +1 -1 -6 Externally Driven Ramp
Power Output (dBc)
-30
-48 -48 dBm
10
8
10
10
8
10
200447_009
Time (sec)
Figure 11. Example of RF Output vs. Time Mask Specification
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200522AB * Skyworks Proprietary and Confidential Information * Products and Product Information are Subject to Change Without Notice. * August 23, 2007
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Ordering Information
Model Number SKY77521 Manufacturing Part Number SKY77521 Product Revision Package 7x6 MCM Operating Temperature -20 C to +100 C
Revision History
Revision P1 A B Level Date July 26, 2006 March 5, 2007 August 23, 2007 Initial Issue - Advance Information Revise: Change data sheet Revision suffix from P1 to A (Advance data sheet status continues); Features list (page 1); Tables 1, 5, 8-15; Figures 1, 2, 6-10; Package and Handling Information section (p16) Revise: Tables 2, 4, 7-15; Figures 2, 6-10 Description
References
Application Note: PCB Design and SMT Assembly/Rework, Document Number 101752 Application Note: Tape and Reel Information - RF Modules, Document Number 101568 Standard SMT Reflow Profiles: JEDEC Standard J-STD-020 ELECTROSTATIC DISCHARGE (ESD) SENSITIVITY TESTING HUMAN BODY MODEL (HBM) - JESD22-A114-C ELECTROSTATIC DISCHARGE (ESD) SENSITIVITY TESTING HUMAN BODY MODEL (MM) - JESD22-A115-A FIELD-INDUCED CHARGED-DEVICE MODEL TEST METHOD FOR ELECTROSTATIC DISCHARGE - JESD22-C101-A
(c) 2006-2007, Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. ("Skyworks") products. These materials are provided by Skyworks as a service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility for errors or omissions in these materials. Skyworks may make changes to its documentation, products, specifications and product descriptions at any time, without notice. Skyworks makes no commitment to update the information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from future changes to its documentation, products, specifications and product descriptions. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by or under this document. Except as may be provided in Skyworks Terms and Conditions of Sale for such products, Skyworks assumes no liability whatsoever in association with its documentation, products, specifications and product descriptions. THESE MATERIALS ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED OR OTHERWISE, RELATING TO SALE AND/OR USE OF SKYWORKS PRODUCTS INCLUDING WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. SKYWORKS FURTHER DOES NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE MATERIALS. SKYWORKS SHALL NOT BE LIABLE FOR ANY DAMAGES, INCLUDING SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM THE USE OF THESE MATERIALS WHETHER OR NOT THE RECIPIENT OF MATERIALS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Skyworks products are not intended for use in medical, lifesaving or life-sustaining applications. Skyworks customers using or selling Skyworks products for use in such applications do so at their own risk and agree to fully indemnify Skyworks for any damages resulting from such improper use or sale. The following are trademarks of Skyworks Solutions, Inc.: Skyworks(R), the Skyworks logo, and Breakthrough Simplicity(R). Product names or services listed in this publication are for identification purposes only, and may be trademarks of Skyworks or other third parties. Third-party brands and names are the property of their respective owners. Additional information, posted at www.skyworksinc.com, is incorporated by reference.

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