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Features
* * * * * *
AMPS/Cell Band and PCS Band CDMA/GPS Operation Low-current Consumption Excellent Noise and IP3 Performance Adjustable Third Order intercept on LNA Stage Flexible IF Frequency Range from 80 MHz to 230 MHz Divide by 2 Prescaler
Benefits
* Very Small 32-pin 5 mm x 5 mm Package * Few External Components * Fully ESD Protected
Applications
* Quad-mode/Tri-band CDMA IS-95/98-based Mobile Phones with GPS Support Electrostatic sensitive device. Observe precautions for handling.
2.8 V Tri-band/ Quad-mode RF Receiver for CDMA/AMPS/ GPS T0353 Preliminary (Summary)
Description
The T0353 is a CDMA front-end receiver RFIC designed for Tri-band, quad-mode operation. The device supports AMPS, Cell CDMA, PCS CDMA, and A-GPS operation. The IF range is from 80 MHz to 230 MHz with external tuning. The low-noise amplifiers have an adjustable third order intercept point (IP3) to minimize inter-modulation and cross-modulation effects. The mixers are designed for differential IF outputs (single-ended or differential IF outputs for AMPS and GPS modes), and they feature excellent linearity and low-noise figure. The T0353 also integrates a divide-by-2 frequency divider to allow the use of only one VCO module for both CDMA bands. However, it also has the option of connecting the LO directly to the cellular mixer LO input. This device is available in a 5 mm x 5 mm MLF package with 32 pins. The T0353 front-end receiver is capable of meeting all electrical requirements in accordance with the TIA/EIA 98-C wireless communication standard.
Rev. 4559AS-CDMA-10/02
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Figure 1. Block Diagram
GPS_LNA OUT
GPS_Mix IN
PLNA OUT
10 GPS_LNA_IN Vcc LNA Iset_PCS PLNA_IN PLNA_GND GLO_IN 8 3 32 2 1 12
31 27
PM_In
16
Mix Vcc 22 19 18
GPS_MIX_Out+ GPS_MIX_Out-
24 23
CDMA_Out+ CDMA_Out-
P_CLO_IN
11
15
PCS LO Out
Vcc LO TX LO/2 L_IN Band_SEL Gain BUFFEN Vcc_Dig CLNA_IN
17 13 30 29 4 25 28 7 9 Iset_Cell Control
/2
14
Cell LO Out
21 20
AMPS IF+ AMPS IF-
6 CLNA GND
5 CLNA OUT CM IN
26
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Pin Configuration
Figure 2. Pinning
PLNA_GND PLNA_IN VCC_LNA Gain CLNA_OUT CLNA_GND CLNA_IN GPS_LNA_IN
1 2 3 4 5 6 7 8
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 9 10 11 12 13 14 15 16 Iset_Cell GPS_LNA_OUT P_CLO_IN GLO_IN LO/2 PLO_OUT CLO_OUT GPSMix_IN
Isset_PCS PLNA_OUT LIN Band_SEL VCC_DIG PM_IN CM_IN BUFFEN CDMA_OUT+ CDMA_OUTVCC_MIX AMPS_OUT+ AMPS_OUTGPSMix_OUT+ GPSMix_OUTVCC_LO_TX
Pin Description
Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Symbol PLNA_GND PLNA_IN Vcc_LNA Gain CLNA_OUT CLNA_GND CLNA_IN GPS_LNA_IN Iset_CELL GPS_LNA_OUT P_CLO_IN GLO_IN LO / 2 PLO_OUT Function PCS LNA emitter-ground. The LNA emitter ground should be grounded immediately to the groundplane to reduce stray inductance and capacitance that may affect performance. PCS LNA input. Requires a DC blocking capacitor and an L-C (shunt C/series L) matching network for optimum gain, intercept and noise performance. Power supply pin for PCS and Cell LNAs. Bypass with a capacitor as close to the pin as possible. Gain select logic input for cellular band. Logic high selects High Gain. Cell LNA output. Requires a pull-up inductor to VCC and a series DC blocking capacitor, which can be used as part of the output matching network. Cell LNA emitter-ground. The LNA emitter ground should be grounded immediately to the groundplane to reduce stray inductance and capacitance that may affect performance. Cell LNA input. Requires a DC blocking capacitor and an L-C (shunt C/series L) matching network for optimum gain, intercept and noise performance. GPS LNA input. Requires a DC blocking capacitor and an L-C (shunt C/series L) matching network for optimum gain, intercept and noise performance. Bias resistor for Cell LNA. For typical bias use a 390 W resistor to ground which sets the bias current for HGHL mode. GPS LNA output. PCS and Cell band LO input. GPS LO input. LO divider-select input. Low disables divider. High selects divider in cellular and AMPS modes. PCS LO buffer output. Internally matched to 100 W. Does not require a blocking capacitor.
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Pin Description (Continued)
Pin 15 16 Symbol CLO_OUT GPSMix_IN Vcc_LO_Tx GPSMix_OUTGPSMix_OUT+ AMPS_OUTAMPS_OUT+ Vcc_Mix CDMA_OUTCDMA_OUT+ BUFFEN CM_IN PM_IN Vcc_DIG Band_SEL LIN PLNA_OUT Iset_PCS Paddle Function Cellular LO buffer output. Internally matched to 100 W. Does not require a blocking capacitor. GPS mixer input. Supply voltage for LO buffers. Negative GPS IF output. Positive GPS IF output. Negative AMPS IF output. Positive AMPS IF output. Supply voltage for all mixers. Negative CDMA IF output. Positive CDMA IF output. LO output buffer enable. Set BUFFEN pin HIGH to power up the LO buffer output corresponding to the selected band. Cell RF input to Cell CDMA mixer and Cell AMPS mixer. PCS mixer RF input. Supply voltage for logic control circuits. Logic input for band select. Logic LOW selects PCS or GPS. Logic HIGH selects cellular (AMPS). Logic input for high or low linearity. Logic HIGH selects High linearity. PCS LNA output. Requires a pull-up inductor to VCC and a series blocking capacitor, which can be used as part of the output matching network. Bias resistor for PCS LNA. For typical bias use a 560 W resistor to ground which sets the bias current for HGHL mode. Device ground and heat sink, requires good thermal path; RF reference plane.
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18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 -
Operation
The various operating modes are controlled by the logic inputs Band_SEL, Gain, LIN, LO/2 and BUFFEN. Table 1 shows the pin settings for the various operating modes.
Logic Inputs (1)
Table 1. Mode Programming Truth Table (Continued)
Mode Shut down PCS mode Condition All circuits off High-gain, high-linearity High-gain, low-linearity Activate PCS LO output buffer Cellular mode High-gain, high-linearity High-gain, low-linearity Low-gain AMPS mode LO/2 On Activate Cell LO output buffer GPS mode Note: Band SEL Low Low Low Low High High High High High High Low Gain Low High High X High High Low Low X X Low LIN Low High Low X High Low High Low X X High LO/2 X X X X X X X X High X X BUFFEN X X X High X X X X X High X
1. The symbol X ("do not care") means a logic input does not affect an operating mode.
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Absolute Maximum Ratings
Parameters Supply voltages, no RF applied Logic control voltages Supply current RF and LO input signals Storage temperature Operating case temperature Symbol VCC VCTRL ICC PLO ; CLO; CLNA_IN; PLNA_IN; GPSLNA_IN; TSTG Value -0.5 to +4.0 -0.5 to +4.0 50.0 +5.0 -55 to +150 -40 to +100 Unit V V mA dBm C C
TC
Thermal Resistance
Parameters Symbol Value Unit
Junction ambient
RthJA
TBD
K/W
DC Supply Characteristics
Test conditions: Unless otherwise noted, the following conditions apply to typical performance specification under static conditions (no RF applied): Vcc = +2.75 V, TA = 25C.
No. Parameters All Modes Supply voltage Control voltage High Control voltage Low LO divider supply current Cell LO Tx buffer current PCS LO Tx buffer current Logic-High current Logic-Low current Power-down supply current Band_SEL, Gain, LIN = Low -5.0 10 I_CC LO/2 = High I_CC LO/2 = Low BUFFEN = High BUFFEN = High 1.7 6.0 8.5 100 2.7 1.7 0.5 2.75 3.3 V V V mA mA mA A A A Test Conditions Pin Symbol Min. Typ. Max. Unit Type*
*) Type means: A =100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
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AC Electrical Characteristics
Test conditions: Unless otherwise noted, the following conditions apply to typical performance specification under static conditions: VCC = +2.75 V, TA = 25C, all RF inputs and outputs with a return loss of 10 dB minimum
No. Parameters General Performance Operating frequency range Cellular band PCS band A-GPS Band LO frequency range Cellular band (LO/2 is Low): IF = 184 MHz Cellular band (LO/2 is High): IF = 184 MHz PCS band: IF = 184 MHz GPS band: IF = 183.6 MHz IF frequency range LO input power level LO Tx buffer output power level Cellular, PCS and GPS bands Cellular, PCS and GPS bands Cellularband, not matched at dedicated frequency 80 -10 -8 -8 685 1053 1370 2106 1746 2114 1759.02 1391.82 183.6 -5 -5.5 -3 230 0 869 1930 881.5 1960 1575.42 710 1078 1420 2156 1806 2174 894 1990 MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz dBm dBm dBm Test Conditions Pin Symbol Min. Typ. Max. Unit Type*
*) Type means: A =100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
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Cascade RF Electrical Characteristics (Cellular Band)
Test conditions: Unless otherwise noted, the following conditions apply to typical performance specification under static conditions: VCC = +2.75 V, TA = 25C, RF = 881.5 MHz, LO = 2130 MHz, IF = 183.6 MHz, LO input = -5.0 dBm, RF input = -35 dBm (High-gain mode), LO/2 = Low, In case of activated LO/2 divider the current consumption increases by 2 mA. In a cascaded configuration Gain and IP3 values are also influenced by the SAW filter. No correction has been made for filter loss (1.6 dB) and interstage board trace losses.
No. Parameters Test Conditions Pin Symbol Min. Typ. Max. Unit Type* Combined LNA and Mixer Performance, CDMA Modulation High-Gain High-Linearity Mode (HGHL) Gain Noise figure Input IP3 Supply current High-Gain Low-Linearity Mode (HGLL Paging Mode) Gain Noise figure Input IP3 Supply current Low-Gain Mode (LG) Gain Noise figure Input IP3 Supply current Combined LNA and Mixer Performance, AMPS Modulation Gain Noise figure Input IP3 Supply current Band_SEL = High; Gain = Low; LIN = Low G NF IIP3 Icc 24 2.5 -10 23 dB dB dBm mA Band_SEL = High; Gain = Low; LIN = Low G NF IIP3 Icc 8.5 12.0 14 28.5 dB dB dBm mA Band_SEL = High; Gain = High; LIN = Low G NF IIP3 ICC 25 2.1 -7.2 23 dB dB dBm mA Band_SEL = High; Gain = High; LIN = High G NF IIP3 ICC 26 2.1 -3.9 30 dB dB dBm mA
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
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4559AS-CDMA-10/02
Cascade RF Electrical Characteristics (PCS Band)
Test conditions: Unless otherwise noted, the following conditions apply to typical performance specification under static conditions: VCC = +2.75 V, TA = 25C, RF = 1960 MHz, LO = 2143.6 MHz, IF = 183.6 MHz, LO input = -5.0 dBm, RF input = -30 dBm (High-gain mode). In a cascaded configuration Gain and IP3 values are also influenced by the SAW filter. No correction has been made for filter loss (2.4 dB) and interstage board trace losses.
No. Parameters Test Conditions Pin Symbol Min. Typ. Max. Unit Type* Combined LNA and Mixer Performance (CDMA Modulation) High-Gain High-Linearity Mode (HGHL) Gain Noise figure Input IP3 Supply current High-Gain Low-Linearity Mode (HGLL Paging mode) Gain Noise figure Input IP3 Supply current Band_SEL = Low; Gain = High; LIN = Low G NF IIP3 Icc 25 2.5 -6.7 24 dB dB dBm mA Band_SEL = Low; Gain = High; LIN = High G NF IIP3 Icc 26 2.4 -3.9 30 dB dB dBm mA
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
Cascade RF Electrical Characteristics (GPS Band)
Test conditions: Unless otherwise noted, the following conditions apply to typical performance specification under static conditions: VCC = +2.75 V, TA = 25C, RF = 1960 MHz, LO = 2143.6 MHz, IF = 183.6 MHz, LO input = -5.0 dBm, RF input = -30 dBm (High-gain mode). In a cascaded configuration Gain and IP3 values are also influenced by the SAW filter. No correction has been made for filter loss (1.7 dB) and interstage board trace losses.
No. Parameters Gain Noise figure Input IP3 Supply current Test Conditions Band_SEL = Low; Gain = Low; LIN = High Pin Symbol G NF IIP3 Icc Min. Typ. 33 1.8 -15 23.5 Max. Unit dB dB dBm mA Type* Combined LNA and Mixer Performance
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
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Typical Electrical Characteristics LNA and Mixer Separately (Cellular Band)
Test conditions: Unless otherwise noted, the following conditions apply to typical performance specification under static conditions: VCC = +2.75 V, TA = 25C, RF = 881.5 MHz, LO = 2130.82 MHz, IF = 183.6 MHz, LO input = -5.0 dBm, RF input = -25 dBm (High-gain mode).
No. Parameters Cell LNA Cell mixer Cell LNA Cell mixer Cell LNA Cell mixer Cell LNA Cell mixer Test Conditions Band_SEL = High; Gain = High; LIN = High Gain (dB) 16 12 15 11.5 -2.2 12 15 10 NF (dB) 1.5 7.0 1.6 6.8 4.0 7.0 1.6 9.0 IIP3 (dBm) 11.5 11.5 8.5 7.5 24.0 11.5 8.5 4 Type* Cell Band, High-Gain High-Linearity Mode (HGHL); CDMA Modulation
Cell Band, High-Gain Low-Linearity Mode (HGLL); CDMA Modulation Band_SEL = High; Gain = High; LIN = Low
Cell Band, Low-Gain Mode (LG); CDMA Modulation Band_SEL = High; Gain = Low; LIN = High
Cell Band, AMPS Modulation Band_SEL = High; Gain = Low; LIN = Low
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
Typical Electrical Characteristics LNA and Mixer Separately (PCS Band)
Test conditions: Unless otherwise noted, the following conditions apply to typical performance specification under static conditions: VCC = +2.75 V, TA = 25C, RF = 1960 MHz, LO = 2143.6 MHz, IF = 183.6 MHz, LO input = -5.0 dBm, RF input = -25 dBm (High-gain mode).
No. Parameters PCS LNA PCS mixer PCS LNA PCS mixer Test Conditions Band_SEL = Low; Gain = High; LIN = High Gain (dB) 15 13 15 13 NF (dB) 1.6 6.7 1.6 6.0 IIP3 (dBm) 9.0 10.5 6.5 5.5 Type* PCS Band, High-Gain High-Linearity Mode (HGHL); CDMA Modulation
PCS Band, High-Gain Low-Linearity Mode (HGLL); CDMA Modulation Band_SEL = Low; Gain = High; LIN = Low
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design paramete
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4559AS-CDMA-10/02
Typical Electrical Characteristics LNA and Mixer Separately (GPS Band)
Test conditions: Unless otherwise noted, the following conditions apply to typical performance specification under static conditions: VCC = +2.75 V, TA = 25C, RF = 1575.42 MHz, LO = 1391.82 MHz, IF = 183.6 MHz, LO input = -5.0 dBm, RF input = -35 dBm (High-gain mode).
No. Parameters A-GPS Mode Cell LNA Cell mixer Band_SEL = Low; Gain = Low; LIN = Low 19.5 16 1.5 7.9 -4.0 -1 Test Conditions Gain (dB) NF (dB) IIP3 (dBm) Type*
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
Ordering Information
Extended Type Number T0353 Package HP-VFQFP-N32 Remarks TBD
Package Information
Note: GND solder mask opening is not centered on the package.
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4559AS-CDMA-10/02 xM

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