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DATA SHEET
SKY73001: 2 - 3500 MHz Direct Conversion Mixer
Applications
* PCS, DCS, and GSM/GPRS, and EDGE base station receivers * CDMA and W-CDMA receivers * Third Generation (3G) wireless communications * Mobile base stations * Wireless Local Loops * Wireless Local Area Networks * Direct conversion receivers
Description
Skyworks SKY73001 direct conversion mixer is an integrated, high-dynamic range, zero Intermediate Frequency (IF) architecture down-converter for use in wireless communication applications. High second and third order input intercept points (IIP2 and IIP3, respectively) allow seamless integration into high performance systems. The SKY73001 has a wide RF and Local Oscillator (LO) frequency range of 2 to 3500 MHz. Figure 1 shows a functional block diagram for the SKY73001. The device package and pinout for the 32-pin RF Land Grid Array (RFLGA) are shown in Figure 2. Skyworks offers lead (Pb)-free, RoHS (Restriction of Hazardous Substances) compliant packaging.
Features
* High IIP2 and IIP3 * Wideband RF and LO input frequency range (2 to 3500 MHz) * Single +3.0 V supply * Operating temperature range -40 C to +85 C * Zero IF architecture eliminates need for image rejection filter * Differential IF output supports direct interface to A/D circuitry * AM demodulation immunity * Low power consumption * RFLGATM (32 pin, 5 x 5 mm) Pb-free package (MSL3, 260 C per JEDEC J-STD-020)
GND GND GND GND
27 32 31 30 29 28 26 25 24 23 22 21 20 19 18 17 10 11 12 13 14 15 16
LOI+ LOI- IFI+
GND
RFN
RFP
GND GND GND VCC
1 2 3 4 5 6 7 8 9
GND IFIP GND IFIN GND IFQP GND IFQN GND
RF+
IFI-
VCC VCC
RF-
IFQ+ IFQ-
GND GND GND
LOQ+ LOQ-
LOIN
LOQN
GND
LOIP
GND
LOQP
GND
C1267
C1266
Figure 1. SKY73001 Functional Block Diagram
Figure 2. SKY73001 Pinout- 32-Pin RFLGA Package (Top View)
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
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DATA SHEET * SKY73001 DIRECT CONVERSION MIXER
Electrical and Mechanical Specifications
Signal pin assignments and functional pin descriptions are provided in Table 1. The absolute maximum ratings of the SKY73001 are provided in Table 2 and the recommended operating conditions provided in Table 3. Electrical characteristics of the SKY73001 are provided in Table 4.
Table 1. SKY73001 Signal Descriptions
Pin # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 GND GND GND VCC VCC VCC GND GND GND LOIN GND LOIP GND LOQP GND LOQN Name Ground Ground Ground +3 VDC supply +3 VDC supply +3 VDC supply Ground Ground Ground Negative LO input Ground Positive LO input Ground Positive quadrature LO input Ground Negative quadrature LO input Description
The typical performance of the SKY73001 with respect to varying conditions are illustrated in Figures 3 through 7. Figure 12 provides the package dimensions for the 32-pin RFLGA, and Figure 13 provides the tape and reel dimensions.
Pin # 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 GND IFQN GND IFQP GND IFIN GND IFIP GND GND GND RFN GND RFP GND GND
Name Ground
Description
Negative quadrature IF output Ground Positive quadrature IF output Ground Negative in-phase IF output Ground Positive in-phase IF output Ground Ground Ground Negative RF input Ground Positive RF input Ground Ground
Table 2. SKY73001 Absolute Maximum Ratings (TA = +25 C, unless otherwise noted)
Parameter +3 V supply voltage Power dissipation RF input power LO input power Thermal resistance Operating case temperature Storage case temperature
Note:
Symbol VCC PD PRFIN PLOIN jc TOPR TSTG
Min 2.7
Typical
Max 3.6
Units V mW dBm dBm C/W
140
230 20 6
36 -40 -40 0 +85 +125
C C
Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other parameters set at or below their nominal values.
Table 3. SKY73001 Recommended Operating Conditions
Parameter +3 V supply voltage Operating case temperature VCC TOPR Symbol Min 2.7 -40 Typical 3.0 Max 3.3 +85 Units V C
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DATA SHEET * SKY73001 DIRECT CONVERSION MIXER
Table 4. SKY73001 Electrical Characteristics (IF = 10 MHz, LO Input Power = 0 dBm, TC = 25 C, unless otherwise noted)
Parameter RF input frequency range LO input frequency range IF frequency range I/Q amplitude imbalance I/Q phase error Image rejection (Note 1) IF output impedance RF Input (900 MHz) Voltage conversion gain SSB Noise Figure IIP2 IIP3 -1 dB compression point RF input impedance LO input impedance RF Input (1900 MHz) Voltage conversion gain SSB Noise Figure IIP2 IIP3 -1 dB compression point RF input impedance LO input impedance
Note 1: Image rejection is determined using the following equation:
Symbol
Test Conditions
Min 2 2 DC -0.3
Typical
Max 3500 3500 100 +0.3
Units MHz MHz MHz dB deg dB
1
500
-4.8
-3.5 14.7 67 16.2
dB dB dBm dBm dBm 2.0:1 2.0:1 VSWR VSWR
25 13
27 15 1.5:1 1.5:1
-5.7
-4.4 17 70 18.5
dB dB dBm dBm dBm 2.0:1 2.0:1 VSWR VSWR
23 12.5
25 14.5 1.5:1 1.5:1
IR = 10 log
1 + A2 1 + A2
+ 2 A cos
[ ] where - 2 A[cos ]
A = 10
amplitude error - 20
in dB.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
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DATA SHEET * SKY73001 DIRECT CONVERSION MIXER
+2 +1
18 17
Conversion Gain (dB)
0 -1 -2 -3 -4 -5 -6 0 500 1000 1500 2000 2500 IF = 10 MHz
Compression Point (dBm)
16 15 14 13 12 11 10 0 500 1000 1500 2000 2500 IF = 10 MHz
Frequency (MHz)
Frequency (MHz)
Figure 3. Voltage Conversion Gain vs Frequency
Figure 4. 1 dB Compression Point vs Frequency
36 34
80 75
32
IIP3 (dBm)
28 26 24 22 20 0 500 1000 1500 2000 2500 IF = 10 MHz
IIP2 (dBm)
30
70 65 60 55 50 0 500 1000 1500 2000 2500
IF = 10 MHz
Frequency (MHz)
Frequency (MHz)
Figure 5. IIP3 vs Frequency (100 kHz Tone Spacing)
Figure 6. IIP2 vs Frequency
20 19 18 17
NF (dB)
16 15 14 13 12 11 10 0 500 1000 1500 2000 2500 IF = 10 MHz
Frequency (MHz)
Figure 7. Noise Figure vs Frequency
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DATA SHEET * SKY73001 DIRECT CONVERSION MIXER
Evaluation Board Description
The SKY73001 Evaluation Board is used to test the performance of the SKY73001 direct conversion mixer. An Evaluation Board schematic diagram (500-2500 MHz) is shown in Figure 8. Evaluation Board assembly diagrams are shown in Figure 9 (2-2500 MHz) and Figure 10 (3200-3500 MHz). Bills of Material (BOMs) are provided in Table 5 (2-500 MHz and 500-2500 MHz) and Table 6 (3200-3500 MHz). Circuit Design Configurations The following design considerations are general in nature and must be followed regardless of final use or configuration. 1. Paths to ground should be made as short as possible. 2. The ground pad of the SKY73001 direct conversion mixer has special electrical and thermal grounding requirements. This pad is the main thermal conduit for heat dissipation. Since the circuit board acts as the heat sink, it must shunt as much heat as possible from the mixer. As such, design the connection to the ground pad to dissipate the maximum wattage produced to the circuit board. Multiple vias to the grounding layer are required. 3. Two external output bypass capacitors are required on the VCC pins. The values of these capacitors will change with respect to the desired RF frequency. One capacitor should be used for low frequency bypassing and the other capacitor for high frequency bypassing. Special attention should be given so that the smaller value capacitor does not go into selfresonance at the desired RF frequency. 4. Wire wound balanced transformers (baluns) were used during the test and characterization of the SKY73001. Ceramic baluns can be used to create the differential input signals (i.e., RF and LO). However, their performance will limit the overall system performance of the SKY73001. Testing Procedure Use the following procedure to set up the SKY73001 Evaluation Board for testing. Refer to Figure 11 for guidance: 1. Connect a +3.0 VDC power supply using an insulated supply cable. If available, enable the current limiting function of the power supply to 100 mA.
2. Connect a signal generator to the RF signal input port. Set it to the desired RF frequency at a power level of 0 dBm to the Evaluation Board but do NOT enable the RF signal. 3. Connect a signal generator to the LOQ signal input port. Set to the desired LO frequency at a power level of 0 dBm, but do not enable. 4. Connect a spectrum analyzer to the IFQ signal output port and terminate the IFI signal input port in 50 . 5. Enable the power supply. 6. Enable the LO input signal. 7. Enable the RF signal. 8. Take measurements and repeat these steps for channel I. CAUTION: If any of the input signals exceed the rated maximum values, the SKY73001 Evaluation Board can be permanently damaged.
Package and Handling Information
Since the device package is sensitive to moisture absorption, it is baked and vacuum packed before shipping. Instructions on the shipping container label regarding exposure to moisture after the container seal is broken must be followed. Otherwise, problems related to moisture absorption may occur when the part is subjected to high temperature during solder assembly. The SKY73001 is rated to Moisture Sensitivity Level 3 (MSL3) at 260 C. It can be used for lead or lead-free soldering. For additional information, refer to the Skyworks Application Note, PCB Design & SMT Assembly/Rework Guidelines for RFLGA Packages, document number 103147. Care must be taken when attaching this product, whether it is done manually or in a production solder reflow environment. Production quantities of this product are shipped in a standard tape and reel format. For packaging details, refer to the Skyworks Application Note, Tape and Reel, document number 101568.
Electrostatic Discharge (ESD) Sensitivity
The SKY73001 is a static-sensitive electronic device. Do not operate or store near strong electrostatic fields. Take proper ESD precautions.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
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DATA SHEET * SKY73001 DIRECT CONVERSION MIXER
SMA RF
6 1 2 4 1
J2
T1 TCM4-25
3 2 1
J1 2-Pin Header
C1 33 pF
32
31
30
29
28
27
26
GND
GND
GND
RFN
GND
1 C2 1000 pF 2 3 4 5 6 7 8 9
GND
RFP
GND GND GND VCC VCC VCC GND GND
GND IFIP GND IFIN
25 24 23 22 21 20 19 18 17 3 2 1 4 3 2 1 4
T2 TCM9-1
SMA I_IF
1
J3
U1 SKY73001
GND IFQP GND IFQN
T3 TCM9-1
SMA Q_IF
1
J4
10
11
12
13
14
15
16
1
2
3
1
2
3
T5 TCM4-25
4 6 4 6
LOQN
1
LOQP
LOIN
LOIP
GND
GND
GND
GND
GND
T4 TCM4-25
I_LO SMA
1
Q_LO SMA J6 J5
C1318
Figure 8. SKY73001 Evaluation Board Schematic (500-2500 MHz)
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DATA SHEET * SKY73001 DIRECT CONVERSION MIXER
J2
T1
J1
C1 C2 U1
T2
J3
T3 T5 T4
J4
J6
J5
Component Placement
Top Layer
Figure 9. SKY73001 Evaluation Board Assembly Diagram (2-2500 MHz)
Bottom Layer
S758
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
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DATA SHEET * SKY73001 DIRECT CONVERSION MIXER
Table 5. SKY73001 Evaluation Board Component Values (2-2500 MHz)
Reference Designator 2-500 MHz C1 C2 J1 J2, J3, J4, J5, J6 T1, T4, T5 T2, T3 U1 500-2500 MHz C1 C2 J1 J2, J3, J4, J5, J6 T1, T4, T5 T2, T3 U1 1 1 1 5 3 2 1 33 pF (0603) 1000 pF (0603) 2-pin header connector SMA connector 4:1 (500-2500 MHz) 9:1 (2-280 MHz) Direct Conversion Mixer Mini-Circuits Mini-Circuits Skyworks TCM4-25 TCM9-1 SKY73001-11 1 1 1 5 3 2 1 33 pF (0603) 1000 pF (0603) 2-pin header connector SMA connector 4:1 (3-800 MHz) 9:1 (2-280 MHz) Direct Conversion Mixer Mini-Circuits Mini-Circuits Skyworks TC4-1W TCM9-1 SKY73001-11 Quantity Value Manufacturer Part Number
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DATA SHEET * SKY73001 DIRECT CONVERSION MIXER
J2
T1 T2 C1 C2 U1
J3
J1
T5
T4
T3
J4
J6
J5
Component Placement
Top Layer
Bottom Layer
Figure 10. SKY73001 Evaluation Board Assembly Diagram (3200-3500 MHz)
S759
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DATA SHEET * SKY73001 DIRECT CONVERSION MIXER
Table 6. SKY73001 Evaluation Board Component Values (3200-3500 MHz)
Reference Designator C1 C2 J1 J2, J3, J4, J5, J6 T1, T4, T5 T2, T3 U1 1 1 1 5 3 2 1 Quantity Value 33 pF (0603) 1000 pF (0603) 2-pin header connector SMA connector 4:1 (3200-3500 MHz) 9:1 (2-280 MHz) Direct Conversion Mixer Johanson Mini-Circuits Skyworks 3700BL15B100 TCM9-1 SKY73001-11 Manufacturer Part Number
Signal Generator
RF IFI Power Supply GND VCC Spectrum Analyzer
SKY73001 Evaluation Board
LOI LOQ
IFQ
50
Signal Generator
50
C1319
Figure 11. SKY73001 Evaluation Board Testing Configuration
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DATA SHEET * SKY73001 DIRECT CONVERSION MIXER
5.04 0.05 Pin #1 Solder Mask
0.300
0.150 Pin #1 Mark
Downset Paddle
0.500 5.04 0.05
0.500
Detail A
2.000
Top View
Bottom View
Solder Mask Exposed Metal
1.00 0.10
0.38 0.05 (32x)
Side View
All measurements are in millimeters
0.300 0.02 (32x)
0.050 Ref.
Package Edge
0.400 0.05 (32x)
Detail A
Figure 12. SKY73001 32-Pin RFLGA Package Dimensions
C1285a
1.55 0.05 0.30 0.05
8.00 0.02
4.00 0.02
2.00 0.05
B
Pin #1 Indicator
1.75 0.10
5.50 0.05
A
5.35
A
5o Max. 1.70
B
1.50 Min. 5.35
B
Notes: 1. Carrier tape: black conductive polystyrene 2. Cover tape material: transparent conductive PSA 3. Cover tape size: 9.3 mm width 4. All dimensions are in millimeters
5o Max.
A
S461
Figure 13. SKY73001 32-Pin RFLGA Tape and Reel Dimensions
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
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12.00 0.30
11
DATA SHEET * SKY73001 DIRECT CONVERSION MIXER
Ordering Information
Model Name SKY73001 2-3500 MHz Direct Conversion Mixer Manufacturing Part Number SKY73001-11 (Pb-free package) Evaluation Kit Part Number TW10-D913 (tuned for 2-500 MHz) TW10-D912 (tuned for 500-2500 MHz) TW12-D342 (tuned for 3200-3500 MHz)
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