RF2498PCBA-41X

RF2498_1 RFMD | Alldatasheet

Document overview

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Technical content

Features

„ GPS Receive Front-End Gain=37dB „ Meets IMD Tests with Three Gain States/Two Logic Con- trol Lines „ Adjustable Mixer and LNA Bias Current „ Selectable Divide-by-2 Pres- caler „ Integrated TX LO Buffer Ampli- fier

Applications

„ CDMA/Cellular/PCS/GPS Handsets „ JCDMA/GPS Handsets „ CDMA Modem/Data Cards „ Commercial and Consumer Systems „ Portable Battery-Powered Equipment RF2498 Tri-Band/Quad-Mode CDMA/G PS Low Noise Amplifier/Mixer RF2498PCBA-41X Fully Assembled Evaluation Board Rev A3 DS030711 RF2498Tri- Band/Quad- Mode CDMA/GPS Low Noise Ampli- fier/Mixer Package Style: QFN, 32-Pin, 5x5

7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. Absolute Maximum Ratings Parameter Rating Unit Supply Voltage -0.5 to +5.0 V DC Input LO and RF Levels +6 dBm Operating Ambient Temperature -40 to +85 °C Storage Temperature -40 to +150 °C Parameter Specification Unit ConditionMin. Typ. Max. Overall T = 25°C, VCC=2.75V RF Frequency Range 800 to 900 MHz 1500 to 2200 MHz

1575.42 MHz GPS band

IF Frequency Range 0.1 400 MHz Power Supply Supply Voltage 2.65 2.75 3.15 V Logic High 1.8 V Logic Low 0.4 V Power Down Current 10 μAE N A B L E = 0 Cellular Band JCDMA Band Freq=869MHz to 894MHz Freq=832MHz to 8 70MHz LNA (On) LNA 50Ω match Gain 13.5 15.0 16.5 dB IPSET=1 13.0 14.5 16.0 dB IPSET=0 Noise Figure 1.1 1.3 dB IPSET=1 1.0 1.2 dB IPSET=0 Input IP3 +9.0 +11.0 dBm IPSET=1 +5.0 +9.0 dBm IPSET=0 Current 6.5 mA IPSET=1 4.5 mA IPSET=0 Isolation 23 dB LNA (Off) Gain -4.0 -2.5 -1.8 dB Noise Figure 2.5 4.0 dB Input IP3 +20.0 +25.0 dBm Current 0 mA Isolation 2.5 dB Mixer - CDMA/JCDMA LO IN=-4dBm See note 1 and 2. Gain 11.5 13.0 14.5 dB Mixer Preamp ON 1.5 3.0 4.5 dB Mixer Preamp OFF Noise Figure 7.5 8.5 dB Mixer Preamp ON 14.0 16.0 dB Mixer Preamp OFF Input IP3 +1.0 +3.5 dBm Mixer Preamp ON Caution! ESD sensitive device. Exceeding any one or a combination of the Absolute Maximum Rating conditions may cause permanent damage to the device. Extended application of Absolute Maximum Rating conditions to the device may reduce device reliability. Specified typical perfor- mance or functional operation of the device under Absolute Maximum Rating condi- tions is not implied. RoHS status based on EUDirective2002/95/EC (at time of this document revision). The information in this publication is believed to be accurate and reliable. However, no responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any infringement of patents, or other rights of third parties, resulting from its use. No license is granted by implication or otherwise under any patent or patent rights of RFMD. RFMD reserves the right to change component circuitry, recommended appli- cation circuitry and specifications at any time without prior notice.

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. +11.0 +13.0 dBm Mixer Preamp OFF Current 18.5 mA Mixer Preamp ON/Mixer/LO Input Amps 13.5 mA Mixer Preamp OFF/Mixer/LO Input Amps

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. Parameter Specification Unit ConditionMin. Typ. Max. Mixer - CDMA/JCDMA, cont. LO IN=-4dBm See note 1 and 2. LO to RF Isolation 36 dB Mixer Preamp ON dB Mixer Preamp OFF LO Frequency Range 600 2300 MHz High and Low Side LO Injection. See note 3 and 4. IF Frequency Range 0.1 183.6 400 MHz Typical IF frequencies: 85.38MHz, 109.80MHz, 111.85MHz, 183.6MHz Mixer - FM LO IN=-4dBm See note 1 and 2. Gain 11.5 13.0 14.5 dB Mixer Preamp ON 1.5 3.0 4.5 dB Mixer Preamp OFF Noise Figure 7.5 8.5 dB Mixer Preamp ON 14.0 16.0 dB Mixer Preamp OFF Input IP3 +1.5 +3.5 dBm Mixer Preamp ON +11.0 +14.0 dBm Mixer Preamp OFF Current 18.5 mA Mixer Preamp ON/Mixer/LO Input Amps 13.5 mA Mixer Preamp OFF/Mixer/LO Input Amps LO to RF Isolation 36 dB Mixer Preamp ON dB Mixer Preamp OFF LO Frequency Range 600 2300 MHz High and Low Side LO Injection See note 3 and 4. IF Frequency Range 0.1 183.6 400 MHz Typical IF frequencies: 85.38MHz, 109.80MHz, 111.85MHz, 183.6MHz Other LO-IF Isolation 30 dB RF-IF Isolation 40 dB LNA Out to Mixer In Isolation 40 dB LO-LNA In Isolation, Any State 35 dB US PCS Band Freq=1930MHz to 1990MHz Korean PCS Band Freq=1840MHz to 18 70MHz LNA (On) LNA 50Ω match Gain 13.5 15.5 17.5 dB IPSET=1 13.0 15.0 16.5 dB IPSET=0 Noise Figure 1.5 1.8 dB IPSET=1 1.4 1.7 dB IPSET=0 Input IP3 +8.0 +12.0 dBm IPSET=1 -2.0 +4.0 dBm IPSET=0 Current 6.5 mA IPSET=1 4.5 mA IPSET=0 Isolation 20 dB LNA (Off) Gain -6 -4 dB Noise Figure 4 6 dB Input IP3 +20.0 +26.0 dBm Current 0 mA Isolation 4 dB

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. Parameter Specification Unit ConditionMin. Typ. Max. Mixer LO IN=-4dBm See note 1. Gain 12.0 14.0 15.5 dB Mixer Preamp ON 2.5 4.5 6.5 dB Mixer Preamp OFF Noise Figure 7.0 8.5 dB Mixer Preamp ON 15 17 dB Mixer Preamp OFF Input IP3 +1.5 +5.0 dBm Mixer Preamp ON +11.0 +13.0 dBm Mixer Preamp OFF Current 19.0 mA Mixer Preamp ON/Mixer/LO Input Amps 14.0 mA Mixer Preamp OFF/Mixer/LO Input Amps LO to RF Isolation 36 dB Mixer Preamp ON 30 dB Mixer Preamp OFF LO Frequency Range 1600 2400 MHz High and Low Side LO Injection IF Frequency Range 0.1 183.6 400 MHz Typical IF frequencies: 183.6MHz, 210.38MHz, 220.38MHz Other LO-IF Isolation 36 dB RF-IF Isolation 40 dB LNA Out to Mixer In Isolation 30 40 dB LO-LNA In Isolation, Any State 35 dB GPS Band Freq=1575.42MHz LNA (On) LNA 50Ω match Gain 17.0 19.0 dB IPSET=1 16 18 dB IPSET=0 Noise Figure 1.3 1.7 dB IPSET=1 1.25 1.7 dB IPSET=0 Input IP3 +1.0 +5.0 dBm IPSET=1 -5.0 -1.0 dBm IPSET=0 Current 6.5 mA IPSET=1 4.5 mA IPSET=0 Isolation 20 dB Mixer LO IN=-4dBm See note 1. Gain 16 18 dB Noise Figure 5.5 dB High Side LO Injection. 7.0 dB Low Side LO Injection. Input IP3 -7.5 -5.5 dBm Current 15.5 mA Preamp/Mixer/LO Input Amps LO to RF Isolation dB LO Frequency Range 1350 1800 MHz High and Low Side LO Injection LO Input Power Range -10 -4 0 dBm IF Frequency Range 0.1 183.6 400 MHz Typical IF frequencies: 183.6MHz, 210.38MHz, 220.38MHz Other LO-IF Isolation 36 dB RF-IF Isolation 40 dB LNA Out to Mixer In Isolation 30 40 dB LO-LNA In Isolation, Any State 35 dB

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. Parameter Specification Unit ConditionMin. Typ. Max. Control Lines Input Capacitance 1 pF BAND SEL, IF SEL, IP SET, LNA GAIN, ENABLE, MIX GAIN, TX BUFF ENABLE, /2 SELECT Local Oscillator Input Cellular - CDMA/FM/JCDMA Input Power -10 -4 0 dBm Input Frequency 600 1078 MHz See note 3. High and Low side injection. 1200 2156 MHz See note 4. High and Low side injection. PCS Input Power -10 -4 0 dBm Input Frequency 1600 2300 MHz High and Low Side LO Injection. GPS Input Power -10 -4 0 dBm Input Frequency 1350 1800 MHz High and Low Side LO Injection. TX (Local Oscillator) Buffer Cellular - CDMA/FM/JCDMA Output Power -11 -8 dBm Single-ended 50 Ω load Output Frequency 600 1078 MHz See note 3. High and Low Side LO Injection. Output Power -11 -6.5 Single-ended 50 Ω load Output Frequency 1200 2156 MHz See note 4. High and Low Side LO Injection. Current Consumption 2 mA PCS Output Power -11 -8 dBm Single-ended 50 Ω load Output Frequency 1600 2300 MHz High and Low Side LO Injection Current Consumption 2 mA NOTE 1. Mixer performance can be changed with external IF load/tuning. NOTE 2. Specifications apply for conditions of LO Divider enabled or disabled. NOTE 3. LO Divider disabled. LO Divider disabled logic conditions: A) BAND SELECT=1; /2 SELECT=Immaterial.B) BAND SELECT=0; /2 SELECT=1 NOTE 4. LO Divider enabled. LO Divider enabled logic conditions: A) BAND SELECT=0; /2 SELECT=0

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. Evaluation Board Current Measurement NOTES: All IDC current numbers include bias circuitry current of 1.5mA to 2.0mA (dependent on mode). TX Buffer On: Add 2mA to total current. /2 Select On: Add 2mA to total current. “X” denotes setting does not impact current. *For Paging mode set IPSET=0 . Total current reduced 2mA. BAND SEL IF SEL ENABLE LNA GAIN MIX GAIN IP SET TX BUFF ENABLE SELECT IDC (mA) CDMA Cellular- High IIP3 LNA Mode* LNA On, Mixer Preamp On, TX Buffer Off, /2 Off 01 1 1 11 0 12 7 . 0 LNA On, Mixer Preamp Off, TX Buffer Off, /2 Off 01 1 1 01 0 1 2 2 . 0 LNA Bypassed, Mixer Preamp On, TX Buffer Off, /2 Off 01 1 0 1X 0 1 2 0 . 5 LNA Bypassed, Mixer Preamp Off, TX Buffer Off, /2 Off 01 1 0 0X 0 1 1 5 . 5 FM/JCDMA- Low Current LNA Mode LNA On, Mixer Preamp On, TX Buffer Off, /2 Off 00 1 1 10 0 1 2 5 . 0 LNA On, Mixer Preamp Off, TX Buffer Off, /2 Off 00 1 1 00 0 1 2 0 . 0 LNA Bypassed, Mixer Preamp On, TX Buffer Off, /2 Off 00 1 0 1X 0 1 2 0 . 5 LNA Bypassed, Mixer Preamp Off, TX Buffer Off, /2 Off 00 1 0 0X 0 1 1 5 . 5 CDMA PCS - High IIP3 LNA Mode* LNA On, Mixer Preamp On TX Buffer Off, /2 Off* 11 1 1 11 0 12 7 . 5 LNA On, Mixer Preamp Off TX Buffer Off, /2 Off* 11 1 1 01 0 1 2 5 . 5 LNA Bypassed, Mixer Preamp On TX Buffer Off, /2 Off 11 1 0 1X 0 1 2 1 . 0 LNA Bypassed, Mixer Preamp Off TX Buffer Off, /2 Off 11 1 0 0X 0 1 1 6 . 0 GPS LNA On, Mixer On 1 0 1 X X 0 0 X 24.0

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. Cascaded Performance (Typical Values for VCC=2.75V) NOTE: All total current numbers include bias circuitry current of 1.5mA to 2.0mA (dependent on mode). CELL CDMA LNA ON LNA OFF LNA ON LNA OFF Parameter LNA at Max IIP3, IPSET=1 Mixer Preamp On Mixer Preamp Off Cascaded: Gain (dB) 25.0 7.5 15.0 -2.5 Noise Figure (dB) 2.1 13.0 4.5 19.5 Input IP3 (dBm) -8.5 +8.9 +0.6 +17.6 LO to IF Isolation (dB) 30 30 30 30 IF1 to RF Isolation (dB) 40 40 40 40 IF2 to RF Isolation (dB) 40 40 40 40 LO to LNA IN Isolation (dB) 45 45 45 45 Total Current (mA) *27.0 20.5 *22.0 15.5 NOTE: Assumes 3dB image filter insertion loss. The TX Buffer Enable is off. Div/2 function is off. Numbers represent high linearity LNA bias setting IPSET=1. *For Paging mode set IPSET=0. Total current reduced 2mA. FM/JCDMA Parameter LNA ON LNA OFF LNA ON LNA OFF Mixer Preamp On Mixer Preamp Off Cascaded: Gain (dB) 24.5 7.5 14.5 -2.5 Noise Figure (dB) 2.1 13.0 4.8 19.5 Input IP3 (dBm) -8.1 +8.9 +1.6 +18.4 LO to IF Isolation (dB) 30 30 30 30 IF1 to RF Isolation (dB) 40 40 40 40 IF2 to RF Isolation (dB) 40 40 40 40 LO to LNA IN Isolation (dB) 45 45 45 45 Total Current (mA) 25.0 20.5 20.0 15.5 NOTE: Assumes 3dB image filter insertion loss. The TX Buffer Enable is off. Div/2 function is off. Numbers represent low current LNA bias setting IPSET=0.

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. Cascaded Performance (Typical Values for VCC=2.75V) NOTE: All total current numbers include bias circuitry current of 1.5mA to 2.0mA (dependent on mode). Cellular CDMA Gain Control PCS CDMA LNA ON LNA OFF LNA ON LNA OFF Parameter LNA at Max IIP3, IPSET=1 Mixer Preamp ON Mixer Preamp OFF Cascaded: Gain (dB) 26.5 7 17.0 -2.5 Noise Figure (dB) 2.2 14 5.0 22 Input IP3 (dBm) -7.5 +11.8 +0.2 +19.0 LO to IF Isolation (dB) 40 40 40 40 IF1 to RF Isolation (dB) 40 40 40 40 IF2 to RF Isolation (dB) 40 40 40 40 LO to LNA IN Isolation (dB) 40 40 40 40 Total Current (mA) *27.5 21.0 *22.5 16.0 NOTE: Assumes 3dB image filter insertion loss. The TX Buffer Enable is off. Div/2 function is off. Numbers represent high linearity LNA bias setting IPSET=1. *For Paging mode set IPSET=0. Total current reduced 2mA. Parameter GPS Cascaded: High IIP3 LNA Mode, IPSET=1 IPSET=0 Gain (dB) 35.5 34.5 Noise Figure (dB) 1.6 1.6 Input IP3 (dBm) -23.0 -22.0 Total Current (mA) 24 22 NOTE: Assumes 1.5dB image filter insertion loss. The TX Buffer Enable is off. /2 Select is off. Mode LNA GAIN MIX GAIN Comments High Gain 1 1 IMD Test 1 and 2 Mid Gain 1 0 IMD Test 3 and 4 Low Gain 0 1 IMD Test 5 and 6 option 1 Ultra Low Gain 0 0 IMD test 5 and 6 option 2 Note: Contact RFMD for Application note on gain control PCBA layout and software recommendations.

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. Pin Function Type Description Interface Schematic 1G P S + A O GPS IF output. Open collector. 2G P S - A O GPS IF output. Open collector. See pin 1. 3C D M A + A O CDMA IF output. Open collector. 4C D M A - A O CDMA IF output. Open collector. See pin 3. 5F M + A O FM IF output. Open collector. “Current combiner” IF interface to SAW filter recommended. (See “IF Output Matching Network” sec- tion.) 6F M - A O FM IF output. Open collector. “Current combiner” IF interface to SAW filter recommended. (See “IF Output Matching Network” sec- tion.) See pin 5. 7V C C 2 P VCC connection for internal LO amplifiers. Internal RF bypass capacitor. External bypass capacitor between 1nF and 47nF required. 8L O I N A I LO single-end input. Matched to 50Ω. 9 LO OUT AO LO output. Internal DC block. 10 /2 SELECT DI Logic input. Low enables /2 circuitry in cellular mode. The divider is disabled when BAND SEL (pin 27) is high, regard- less of the state of pin 10. The divider can only be enabled when BAND SEL is low and pin10 is low. Pin 10 can be tied to a low state allowing BANDSEL (pin 27) to control the LO divider func- tion, if using a single LO input source. See pin 11.

11 TX BUFF

DI Logic input. High enables TX LO output buffer amplifiers. 12 PCS RFA VCC P VCC connection for PCS mixer preamplifier. 13 PCS MIX IN AI PCS mixer RF single-end input. 14 CELL MIX IN AI Cellular mixer RF single-end input. Matched to 50Ω. GPS+ GPS- CDMA+ CDMA- FM+ FM- LO IN 70 Ω TX BUF PCS MIX IN CELL MIX IN

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. Pin Function Type Description Interface Schematic 15 MIX GAIN DI Logic input. Logic high turns on PCS or cellular mixer preamp and provides maximum gain. Logic low will bypass the PCS and cellu- lar mixer preamp. 16 ENABLE DI Logic input. Low level powers down the IC. 17 LNA GAIN DI Logic input. High activates cellular or PCS LNAs. Low selects LNA bypass mode for both bands.

18 CELL LNA

AO Cellular LNA output. Simple external L-C components required for matching and VCC supply. See pin 20.

19 CELL LNA

AO Cellular LNA emitter. A small inductor connects this pin to ground. Cellular LNA gain can be adjusted by the inductance. See pin 20. 20 CELL LNA IN AI Cellular LNA input. 21 PCS LNA OUT AO PCS LNA output. Simple external L-C components required for matching and VCC supply. 22 IP SET DI Logic input. High selects high IIP3 LNA “boost” modes for GPS, cellular and PCS CDMA paths. Low selects “normal” LNA IIP3 mode for GPS, cellular and PCS CDMA paths. Bias setting resistor at pin 31 allows for the adjustment of LNA IIP3 in boost mode. 23 PCS LNA IN AI PCS LNA input. For best performance, simple external matching required. See pin 21. 24 GPS LNA IN AI GPS LNA input. For best performance, simple external matching required. 25 GPS LNA OUT AO GPS LNA output. Simple external L-C components required for matching and VCC supply. See pin 24. 26 IF SEL DI Logic input. High selects CDMA IF outputs; low selects FM or GPS IF outputs. 27 BAND SEL DI Logic input. High level selects PCS or GPS band; low level selects cellular band. The LO divider circuitry is disabled when BAND SEL is high, regardless of the state of pin 10 (/2 SELECT). When BAND SEL is low, pin 10 can be selected high or low. If using a single LO input, pin 10 can be tied to a low state allowing BAND SEL to con- trol the LO divider function. MIX GAIN ENABLE LNA GAIN CELL LNA IN VCC CELL LNA OUT CELL LNA EMITTER PCS LNA IN VCC PCS LNA OUT IP SET GPS LNA IN VCC GPS LNA OUT IF SEL BAND SEL

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. ISET Pins ISET1 sets the internal reference voltage for the bias control ci rcuits to all functional blocks. An external resistor of 5.1k Ω to ground is required. We do not recommend adjusting this resistor value. This resistor is pulled out to allow for a higher precision off chip value and not as a significant tuning adjustment. ISET2 sets the DC current through the LNAs in all bands when IP SET is high. Higher resistance to ground results in lower cur- rent through the LNA. Increasing the LNA current will improve the IIP3 of the LNA and slightly increase gain in all modes. NF typically will get worse as you increase current. Increasing the LNA current in one mode, i.e. Cellular, will also increase the LNA current for the high IPSET state for PCS and the GPS LNAs as well. ISET3 sets the DC current through the mixer and mixer preamplifier for all bands. Higher resistance to ground results in lower current. Lower current will improve mixer NF but will degrade IIP3. Mixer and the mixer preamp gain is not significantly changed with current. Pin Function Type Description Interface Schematic 28 GPS MIX IN AI GPS mixer RF single-end input.

29 VCC1 P DC supply for internal reference, logic control, cellular mixer

preamp, and GPS mixer preamp (PCS mixer preamp has its’ own DC supply, PCS_RFA_VCC). External bypass capacitor between 1nF and 4 7nF required. 30 ISET1 AO Resistor for internal voltage reference setting. Recommended value 5.1kΩ.

31 ISET2 AO Resistor to ground sets the LNA current in boost mode (all three

LNAs). Higher resistance results in lower current. 32 ISET3 AO Resistor to ground sets preamp and mixer currents in all bands. Higher resistance results in lower currents. Pkg Base GND P Ground connection. The backside of the package should be sol- dered to a top side ground pad which is connected to the ground plane with multiple vias. Legend: DI=Digital Input from Baseband Chip AI=Analog Input AO=Analog Output P=V CC or GND GPS MIX IN

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. Package Drawing

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. Application Schematic NOTE: IF output matching component valu es are dependent on board layout, IF SAW filter and the IF frequency selected. Please contact RFMD application engineering for assistance with IF output matching. TBD 7.5 kΩ TBDTBD TBD TBDTBDTBD TBD TBD MIX GAIN ENABLE 2.4 pF 33 nF LNA GAIN 33 nF 18 nH 6.8 nH 33 nF 20 kΩ 5.1 kΩ TBD 10 11 12 13 14 15 16 31 30 29 28 27 26 25 TBD TBD4 CDMA IF SAW TBDTBDTBD TBD TBD FM IF SAW 2.2 nH DIV EN TX BUF EN 3.3 nH 1.0 pF 33 nF IP SET 1.2 nH 10 nH Cell RF Saw

52 OUTIN

4.7 nH 2.7 nH 10 Ω IF SELBAND SEL VCC VCC VCC VCC VCC VCC VCC GPS IF VCC LO IN LO OUT VCC CELL LNA IN PCS LNA IN GPS LNA IN FM+ FM- 200 Ω CDMA+ CDMA- NOTES: 1. This resistor sets mixer preamp and mixer currents in all bands. Lowering the resistance results in higher currents. 2. This resistor sets LNA currents of all bands in boost mode. Increasing the resistor value results in lower currents. 3. Sets internal bias voltage. Recommend 5.1 k Ω. 4. DC blocking capacitor. 5. PCS LNA Input Matching. Optimize for NF. 6. Determines trade off between IIP3 and Gain. Higher value inductor means lower gain and higher IIP3. 7. Cell/PCS LNA Input Matching for optimum IIP3. Low impedance path to ground at low frequency for optimum IIP3. 8. For cell and PCS mixer input matching. Note: If any functional blocks are not being used, the unused pins can be left with no connection. Layout Note: To minimize losses and radiation, the RF signal traces should be as short as possible. The IF+ and IF- outputs traces should be symmetrical. A ll bypass capacitors and matching capacitors must have a ground via very close to the capacitor. Each capacitor should have its own ground via. All traces should be 50 Ω transmission lines. Position inductors to reduce coupling (see note 15). 9. PCS Interstage matching. As the value of the inductance is increased, the PCS mixer preamp gain will decrease and the IIP3 will increase and vice versa. 10. For optimum NF and input matching. As the value of the capacitance is increased, the NF will become worse. 11. To optimize performance over temperature and bias. 12. For output matching and a DC supply bias choke. 13. GPS mixer input matching for optimum IIP3. Low impedance path to ground at low frequency for optimum IIP3. 14. Input or Output matching. 15. Coupling of coils on the input, output, and emitter (where applicable) of any LNA should be minimized to reduce the risk of oscillation. We recommend separating the inductors and/or positioning them 90 o relative to each other. 33 nH 1.2 pF 2.7 nH 33 nF 33 nH 1.2 nH 0.75 pF 15 Ω TBD VCC TBD GPS RF Saw 52OUT IN GNDGND GNDGND See Notes 12 and 15 See Notes 6 and 15 See Notes 7 and 15 See Note 4 See Notes 14 and 15 See Notes 12 and 15 See Note 11 See Note 14 See Note 11 See Note 2 See Note 3See Note 1 See Note 9 See Note 8 See Note 4 See Note 4 See Note 14 See Note 8 See Note 4 See Note 14 See Note 10 See Note 4 See Notes 14 and 15 See Note 4 See Notes 14 and 15 See Note 10 See Notes 7 and 15 See Notes 12 and 15 See Note 13 See Note 4

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. Evaluation Board Schematic C27 6.8 pF 7.5 kΩ C34 DNI 5.6 kΩ L10 120 nH 180 nHVCCC21 100 pF 6.8 pF50 Ω μstripJ1 GPS IF C28 6.8 pF C35 DNI 10 kΩ L11 120 nH 180 nH DNI VCC C22 100 pF C17 DNI 5.1 pF C31 DNI C11 DNI DNI C12 DNI 33 nF50 Ω μstripJ2 CDMA IF C38 6.8 pF C36 DNI 24 kΩ L12 120 nH DNI 150 nH C14 DNI DNI C15 DNI C13 DNI 33 nF 50 Ω μstripJ3 FM IF C29 6.8 pF 6.2 pF VCC C23 100 pF C18 DNI C44 33 nF VCC DNI 50 Ω μstripJ4 LO IN L17 2.2 nH 50 Ω μstripJ5 LO OUT DIV EN TX BUF EN L18 3.3 nH C33 33 nF VCC 33 nF MIX GAIN ENABLE C16 1 pF C61 33 nF C59 DNI50 Ω μstripJ6 PCS MIX IN 50 Ω μstrip J7 CELL MIX IN LNA GAIN L21 10 nH C25 100 pF VCC C69 2.4 pF 50 Ω μstrip J8 CELL LNA OUT L24 1.2 nH L16 33 nH C64 33 nF 50 Ω μstrip CELL LNA IN L22 4.7 nH L27 2.7 nH 10 Ω C63 33 nF 50 Ω μstrip J10 PCS LNA OUT C26 100 pF VCC IP SET C66 DNI 50 Ω μstrip J11 PCS LNA IN C70 0.75 pF C62 33 nF L23 DNI C19 1.0 pF 50 Ω μstrip J12 GPS LNA IN IF SEL L20 18 nH 10 Ω C24 100 pF VCC L19 6.8 nH C50 33 nF 50 Ω μstrip J13 GPS LNA OUT C48 DNI BAND SEL C41 DNI C40 33 nF 50 Ω μstrip J14 GPS MIX IN 20 kΩ 5.1 kΩ C43 33 nF VCC L13 33 nH C42 33 nF 2498310, Rev. 1 CON3 GND GND P3-1 VCC C20 1 μF *IF FREQ = 184 MHz C39 6.8 pF C37 6.8 pF 10 11 12 13 14 15 16 31 30 29 28 27 26 25 C10 DNI L26 DNI L14 DNI C30 DNI FL3 IF SAW FL2 CDMA IF SAW DNI R10 0 Ω 33 nF C58 DNI C56 DNI FL4 Cell RF Saw 1.2 nH 33 nF CON4 P1-1 C45 33 nF DIV EN P1-2 C51 33 nF IF SEL P1-3 C52 33 nF IP SET P1-4 C49 33 nF BAND SEL CON4 P2-4 C55 33 nF LNA GAIN P2-3 C53 33 nF MIX GAIN P2-2 C46 33 nF TX BUF EN P2-1 C54 33 nF ENABLE R12 200 Ω L15 1.2 pF 33 nF C32 2.7 nH

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. Evaluation Board Layout Board Size 3.0” x 3.0” Board Thickness 0.064”, Board Material FR-4, Multi-Layer

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. Cellular Band LO Output Power versus LO Input Power (Freq=2128MHz, Divider=0(ON), VCC 2.75V, Temp 25oC) -8.0 -7.5 -7.0 -6.5 -6.0 LO Input Power (dBm) LB-LO Output Power (dBm) Cellular Band LO Output Power versus LO-Input Power (Freq=1064MHz, Divider 1(off), VCC=2.75V, Temp 25oC) -10.0 -9.5 -9.0 -8.5 -8.0 -7.5 -7.0 -6.5 -6.0 LO-Input Power (dBm) LB-LO Output Power (dBm) PCS Band LO Output Power versus LO-Input Power (Freq=2144MHz, VCC 2.75V, Temp 25oC) -10.0 -9.0 -8.0 -7.0 -6.0 LO-Input Power (dBm) HB-LO Output Power (dBm) PCS Band LO Output Power versus VCC (Freq=2144MHz, Input Power -4dBm, Temp 25oC) -10.00 -9.50 -9.00 -8.50 -8.00 -7.50 -7.00 -6.50 -6.00 VCC (V) HB-LO Output Power (dBm) Cellular Band LO Output Power versus VCC (Freq=2128MHz, Divider=0 (on), Input Power-4dBm, Temp 25oC) -8.00 -7.50 -7.00 -6.50 -6.00 VCC (V) LB-LO Output Power (dBm) Cellular Band LO Output Power versus VCC (Freq=1064MHz, Divider=1(off), Input Power-4dBm, Temp 25oC) -10.00 -9.00 -8.00 -7.00 -6.00 VCC (V) LB-LO Output Power (dBm)

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. to 8μinch gold over 180μinch nickel. cesses. The PCB land pattern has been developed to accommodate lead and package tolerances. Figure 1. PCB Metal Land Pattern (Top View)

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. provided in the master data or requested from the PCB fabrication supplier. Figure 2. PCB Solder Mask Pattern (Top View)