RF2489 Preliminary 8 DUAL-BAND/TRI-MODE CDMA LOW NOISE AMPLIFIER/MIXER Typical Applications • CDMA/Cellular/PCS Handsets • Commercial and Consumer Systems • JCDMA/GPS Handsets • Portable Battery-Powered Equipment • CDMA Modem/Data Cards Product Description 1.00 0.85 0.23 0.13 4 PLCS 0.60 0.24 typ 3 0.30 0.18 3.25 2.95 sq. 0.45 0.20 0.55 0.30 12° MAX 0.05 0.01 4 PLCS 0.50 8 NOTES: 1 Shaded Pin is Lead 1. 2 Pin 1 identifier must exist on top surface of package by identification mark or feature on the package body. Exact shape and size is optional. FRONT-ENDS The RF2489 is a high performance CDMA dual-band/trimode integrated LNA/mixer. The device is designed to meet all IS-98 sensitivity, intermodulation and single-tone requirements. The operating voltage is 2.7V and is compatible with 1.8V logic for control lines. The RF2489 integrates the dual-band LNA/downconverters with 30dB of gain control and TX LO buffers. Additionally, a divide-by-2 prescaler to allow the use of a single-band VCO is integrated. The design is flexible, in that the bias currents may be set using off-chip current reference resistors for both the LNA and mixer blocks. The device is packaged in a 5mmx5mm leadless plastic package. 5.00 sq. 0.80 0.65 3 Dimension applies to plated terminal: to be measured between 0.02 mm and 0.25 mm from terminal end. 4 Package Warpage: 0.05 mm max. 5 Die Thickness Allowable: 0.305 mm max. Optimum Technology Matching® Applied Si BJT GaAs HBT üSiGe HBT IP SET BAND SEL VCC1 CELL MIX IN GND ISET2 ISET1 Si CMOS IF SEL Si Bi-CMOS Package Style: LCC, 32-Pin, 5x5 GaAs MESFET 32 31 30 29 28 27 26 25 Features • 30dB of Stepped LNA/Mixer Gain Control • Adjustable Mixer & LNA Bias Current/IIP3 FM+ 1 24 CELL LNA OUT FM- 2 23 CELL LNA EMITTER CDMA+ 3 22 CELL LNA IN CDMA- 4 21 GND /2 SELECT 5 20 PCS LNA IN LO IN 6 19 GND PCS LO OUT 7 18 CELL LO OUT 8 /2 • A Divide-by-2 Prescaler • Meets IMD Tests with Three Gain States/ Two Logic Control Lines • Integrated TX LO Buffer Amplifiers VCC2 10 11 12 13 14 15 16 VCC3 ENABLE TX BUFF ENABLE GND PCS MIX IN MIX GAIN LNA GAIN GND 17 PCS LNA OUT 9 Ordering Information RF2489 RF2489 RF2489 PCBA Functional Block Diagram Rev A10 011017 Dual-Band/Tri-Mode CDMA Low Noise Amplifier/Mixer Dual-Band/Tri-Mode JCDMA/GPS Low Noise Amplifier/Mixer Fully Assembled Evaluation Board RF Micro Devices, Inc. 7628 Thorndike Road Greensboro, NC 27409, USA Tel (336) 664 1233 Fax (336) 664 0454 http://www.rfmd.com 8-33 RF2489 Preliminary Absolute Maximum Ratings Parameter Supply Voltage Input LO and RF Levels Operating Ambient Temperature Storage Temperature Parameter Rating Unit -0.5 to +5.0 +6 -40 to +85 -40 to +150 VDC dBm °C °C Caution! ESD sensitive device. RF Micro Devices believes the furnished information is correct and accurate at the time of this printing. However, RF Micro Devices reserves the right to make changes to its products without notice. RF Micro Devices does not assume responsibility for the use of the described product(s). Specification Min. Typ. Max. Unit 869 to 894 1930 to 1990 1575.42 0.1 to 400 MHz MHz MHz MHz T = 25°C, VCC =2.75V Overall RF Frequency Range IF Frequency Range Cellular Band JCDMA Band LNA (On) Gain Input IP3 13.5 13.0 +9.0 +6.0 Current FRONT-ENDS GPS Freq=869MHz to 894MHz Freq=832MHz to 870MHz Noise Figure 8 Condition Isolation 15.0 14.0 1.1 1.1 +10.0 +8.5 6.5 4.5 23 16.0 1.3 1.3 dB dB dB dB dBm dBm mA mA dB LNA 50Ω match IP SET=1 IP SET=0 IP SET=1 IP SET=0 IP SET=1 IP SET=0 IPSET=1 IPSET=0 LNA (Off) Gain Noise Figure Input IP3 Current Isolation -6 +23.0 -5 5.0 +25.0 0 5 5.5 dB dB dBm mA dB Mixer - CDMA/JCDMA Gain 12.0 2 Noise Figure Input IP3 +3.0 +12.0 Current LO to RF Isolation 8-34 36 30 13.5 4 7 14 +4.5 +14.0 19.5 15.0 15 8 16 dB dB dB dB dBm dBm mA mA dB dB LO Input Level=-4dBm Mixer Preamp ON Mixer Preamp OFF Mixer Preamp ON Mixer Preamp OFF Mixer Preamp ON Mixer Preamp OFF Mixer Preamp ON/Mixer/LO Input Amps Mixer Preamp OFF/Mixer/LO Input Amps Mixer Preamp ON Mixer Preamp OFF Rev A10 011017 RF2489 Preliminary Parameter Specification Min. Typ. Max. Unit Cellular Band JCDMA Band, cont’d Mixer - FM Gain Freq=869MHz to 894MHz Freq=832MHz to 870MHz 12 2 36 30 dB dB dB dB dBm dBm mA mA dB dB 30 40 40 35 dB dB dB dB Noise Figure Input IP3 +3.0 +130 Current LO to RF Isolation Condition 13 4 7 14 +5.0 +15.0 19.5 15.0 14 8 16 LO Input Level=-4dBm Mixer Preamp ON Mixer Preamp OFF Mixer Preamp ON Mixer Preamp OFF Mixer Preamp ON Mixer Preamp OFF Mixer Preamp ON/Mixer/LO Input Amps Mixer Preamp OFF/Mixer/LO Input Amps Mixer Preamp ON Mixer Preamp OFF Other 50 PCS Band LNA (On) Gain 14.5 14.5 Noise Figure Input IP3 +6.0 -1.0 Current Isolation 16.0 15.0 1.4 1.3 +8.0 +1.0 6.5 4.5 20 1.6 1.6 dB dB dB dB dBm dBm mA mA dB Freq=1930MHz to 1990MHz Freq=1840MHz to 1870MHz LNA 50Ω match IP SET=1 IP SET=0 IP SET=1 IP SET=0 IP SET=1 IP SET=0 IP SET=1 IP SET=0 8 FRONT-ENDS LO-IF Isolation RF-IF Isolation LNA Out to Mixer In Isolation LO-LNA In Isolation, Any State LNA (Off) Gain Noise Figure Input IP3 Current Isolation -6.5 +23.0 -5.5 5 +26.0 0 5 6 dB dB dBm mA dB Mixer Gain 11.5 2.5 36 30 dB dB dB dB dBm dBm mA mA dB dB 36 40 30 35 dB dB dB dB Noise Figure Input IP3 +2.0 +11.0 Current LO to RF Isolation 13.0 4.0 8.0 15 +4.0 +13.0 19.5 15.0 14.0 9.5 LO Input Level=-4dBm Mixer Preamp ON Mixer Preamp OFF Mixer Preamp ON Mixer Preamp OFF Mixer Preamp ON Mixer Preamp OFF Mixer Preamp ON/Mixer/LO Input Amps Mixer Preamp OFF/Mixer/LO Input Amps Mixer Preamp ON Mixer Preamp OFF Other LO-IF Isolation RF-IF Isolation LNA Out to Mixer In Isolation LO-LNA In Isolation, Any State Rev A10 011017 40 8-35 RF2489 Parameter Preliminary Specification Min. Typ. Max. Unit GPS Frequency Freq=1575.42MHz LNA (On) Gain 16.5 15.5 Noise Figure Input IP3 -6.0 -11.0 18.0 16.5 1.4 1.3 -5.0 -9.0 1.6 1.6 Current Isolation 20 dB dB dB dB dBm dBm mA mA dB LNA 50Ω match IP SET=1 IP SET=0 IP SET=1 IP SET=0 IP SET=1 IP SET=0 IP SET=1 IP SET=0 Mixer RF amp ON LO Input Level=-4dBm Mixer Gain Noise Figure Input IP3 Current LO to RF Isolation Condition 15 36 dB dB dBm mA dB 36 40 30 35 dB dB dB dB +1.0 16 7 +1.5 17 9 Other 8 LO-IF Isolation RF-IF Isolation LNA Out to Mixer In Isolation LO-LNA In Isolation, Any State 40 Control Lines FRONT-ENDS Input Capacitance 8-36 1 pF BAND SEL, IF SEL, IP SET, LNA GAIN, ENABLE, MIX GAIN, TX BUFF ENABLE, /2 SELECT Rev A10 011017 RF2489 Preliminary Parameter Specification Min. Typ. Max. Unit Condition Local Oscillator Input Cellular - CDMA/FM Input Power Input Frequency -10 Cellular - JCDMA Input Power Input Frequency -10 PCS Input Power Input Frequency -10 GPS Input Power Input Frequency -10 -4 685-710 1053-1078 1370-1420 2106-2156 0 -4 722-760 942-980 1444-1520 1884-1960 0 -4 1746-1806 2114-2174 0 -4 1465.42 1685.42 0 dBm MHz MHz MHz MHz IF=184MHz IF=184MHz IF=184MHz with /2 SELECT=1 IF=184MHz with /2 SELECT=1 dBm MHz MHz MHz MHz IF=110MHz IF=110MHz IF=110MHz with /2 SELECT=1 IF=110MHz with /2 SELECT=1 dBm MHz MHz IF=184MHz IF=184MHz dBm MHz MHz IF=110MHz IF=110MHz TX (Local Oscillator) Buffer Current Consumption Cellular - JCDMA Output Power Output Frequency Current Consumption PCS Output Power Output Frequency Current Consumption Rev A10 011017 8 -10 -10 -10 -8 685-710 1053-1078 1370-1420 2106-2156 Single-ended 50Ω load, /2 SELECT=1 IF=184MHz IF=184MHz IF=184MHz with /2 SELECT=1 IF=184MHz with /2 SELECT=1 2 dBm MHz MHz MHz MHz mA Single-ended 50Ω load, /2 SELECT=1 IF=110MHz IF=110MHz IF=110MHz with /2 SELECT=1 IF=110MHz with /2 SELECT=1 2 dBm MHz MHz MHz MHz mA Single-ended 50Ω load IF=184MHz IF=184MHz 2 dBm MHz MHz mA -8 722-760 942-980 1444-1520 1884-1960 -8 1746-1806 2114-2174 FRONT-ENDS Cellular - CDMA/FM Output Power Output Frequency 8-37 RF2489 Preliminary Evaluation Board Current Measurement CDMA Cellular JCDMA LNA On, Mixer Preamp On, TX Buffer Off, /2 Off LNA On, Mixer Preamp Off, TX Buffer Off, /2 Off LNA Bypassed, Mixer Preamp On, TX Buffer Off, /2 Off LNA Bypassed, Mixer Preamp Off, TX Buffer Off, /2 Off FM LNA On, Mixer Preamp On, TX Buffer Off, /2 Off LNA On, Mixer Preamp Off, TX Buffer Off, /2 Off LNA Bypassed, Mixer Preamp On, TX Buffer Off, /2 Off LNA Bypassed, Mixer Preamp Off, TX Buffer Off, /2 Off FRONT-ENDS 8 CDMA PCS - High IIP3 LNA Mode LNA On, Mixer Preamp On, TX Buffer Off, /2 Off LNA Off, Mixer Preamp Off, TX Buffer Off, /2 Off LNA Bypassed, Mixer Preamp On, TX Buffer Off, /2 Off LNA Bypassed, Mixer Preamp Off, TX Buffer Off, /2 Off BAND SEL IF SEL ENABLE LNA GAIN MIX GAIN IP SET TX BUFF ENABLE /2 SELECT IDC (mA) 0 0 1 1 1 0 0 0 27.5 0 0 1 1 0 0 0 0 23.0 0 0 1 0 1 0 0 0 23.0 0 0 1 0 0 0 0 0 18.5 0 1 1 1 1 0 0 0 27.5 0 1 1 1 0 0 0 0 23.0 0 1 1 0 1 0 0 0 23.0 0 1 1 0 0 0 0 0 18.5 1 0 1 1 1 1 0 0 29.5 1 0 1 1 0 1 0 0 25.0 1 0 1 0 1 1 0 0 23.0 1 0 1 0 0 1 0 0 18.5 GPS LNA On, Mixer On NOTES: All IDC current numbers include bias circuitry current of 3.5mA (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. 8-38 Rev A10 011017 RF2489 Preliminary 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). Cascaded: Gain (dB) Noise Figure (dB) Input IP3 (dBm) CELL CDMA LNA ON LNA OFF Mixer Preamp On 24.5 2.2 -6.6 LNA ON LNA OFF Mixer Preamp Off 5.5 15.0 +12.3 15.0 5.1 +1.9 LO to IF Isolation (dB) 30 30 30 IF1 to RF Isolation (dB) 40 40 40 IF2 to RF Isolation (dB) 40 40 40 LO to LNA IN Isolation (dB) 40 40 40 Total Current (mA) 27.5 23.0 23.0 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. Parameter Cascaded: Gain (dB) Noise Figure (dB) Input IP3 (dBm) FM LNA ON LNA OFF Mixer Preamp On 24.0 2.2 -6.1 Cascaded: Gain (dB) Noise Figure (dB) Input IP3 (dBm) 30 40 40 40 18.5 LNA ON LNA OFF Mixer Preamp Off 5.0 15.0 +12.7 15.0 5.1 +2.7 LO to IF Isolation (dB) 30 30 30 IF1 to RF Isolation (dB) 40 40 40 IF2 to RF Isolation (dB) 40 40 40 LO to LNA IN Isolation (dB) 40 40 40 Total Current (mA) 27.5 23.0 23.0 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. Parameter -4.0 22.0 +19.5 -4.0 22.0 +20.8 8 30 40 40 40 18.5 FRONT-ENDS Parameter PCS CDMA LNA ON LNA OFF LNA at Max IIP3, IPSET=1 LNA at Min IIP3, IPSET=0 Mixer Amp ON Mixer Amp OFF Mixer Amp ON Mixer Amp OFF Mixer Amp ON Mixer Amp OFF 26.0 2.2 -9.0 17.0 4.7 -0.6 25.0 2.3 -8.5 15.5 5.2 -2.0 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) 40 40 40 40 Total Current (mA) 29.5 25.0 27.5 23.0 NOTE: Assumes 3dB image filter insertion loss. The TX Buffer Enable is off. Div/2 function is off. 5.0 16.0 +11.8 -4.0 23.0 +19.8 30 40 40 40 23.0 30 40 40 40 18.5 Parameter GPS Cascaded: Gain (dB) 34.5 Noise Figure (dB) 1.6 Input IP3 (dBm) -19 Total Current (mA) 21 NOTE: Assumes 1.5dB image filter insertion loss. The TX Buffer Enable is off. /2 Select is off. Rev A10 011017 8-39 RF2489 Preliminary Control Logic (Single VCO) Mode Cellular FM Cellular CDMA PCS CDMA Power Down Power Down 2 TX Buffer Enabled /2 Enabled BAND SEL IF SEL ENABLE TX BUFF ENABLE /2 SELECT 0 0 1 1 X X 0 1 0 0 1 X X X 1 1 1 1 0 1 1 X X X X X 1 X 1 1 X X X X 1 BAND SEL IF SEL ENABLE TX BUFF ENABLE /2 SELECT 0 0 1 1 X X 0 1 0 0 1 X X X 1 1 1 1 0 1 1 X X X X X 1 X 0 0 X X X X 1 Control Logic (Dual VCO) Mode Cellular FM Cellular CDMA PCS CDMA Power Down Power Down 2 TX Buffer Enabled /2 Enabled FRONT-ENDS 8 Application Note 1 The PCS TX LO output pin (pin 7) and the CELL TX LO output pin (pin 8) can be combined. When BAND SEL is set low, the PCS band LO limiter and PCS TX LO buffer are off. Also, when BAND SEL is set high, the cellular band LO limiter and frequency divider are off as well as the cellular TX LO buffer. The LO leakage through the path of the disabled LO limiter/divider and TX LO buffer is insignificant. Typical LO isolation test data follows: LO Input Frequency=2128MHz, PIN =-4dBm, BAND SEL=0, /2 SELECT=1 POUTPIN8 =-28dBm at 2128MHz POUTPIN8 =-11dBm at 1064MHz POUTPIN7 =-34dBm at 2128MHz 8-40 Rev A10 011017 RF2489 Preliminary Pin 1 Function FM+ 2 FM- 3 CDMA+ 4 5 CDMA/2 SELECT 6 LO IN Description FM IF output. Open collector. “Current combiner” IF interface to SAW filter recommended. Interface Schematic FM+ FM- FM IF output. Open collector. “Current combiner” IF interface to SAW filter recommended. CDMA IF output. Open collector. See pin 1. CDMA IF output. Open collector. See pin 3. CDMA+ CDMA- Enable /2 circuitry in cellular mode. High enables /2 circuitry. The divider is disabled when BAND SEL (pin 30) is high, regardless of the state of pin 5. The divider can only be enabled when BAND SEL is low and pin 5 is high. Pin 5 can be tied to a high state allowing BAND SEL (pin 30) to control the LO divider function, if using a single LO input source. LO single-end input. Internal DC block. 8 LO IN PCS LO OUT 8 9 CELL LO OUT VCC3 10 ENABLE 11 PCS LO output. Internal DC block. If a single TX VCO is required, pins 7 and 8 can be tied together and used as one LO output. (See application note 1.) Cellular LO output. Internal DC block. (See application note 1.) VCC connection for internal LO amplifiers. Internal RF bypass capacitor. External bypass capacitor between 1nF and 47nF required. Logic input. Low level powers down IC. IC can be shut down by setting pins 30 and 32 high and TX Buffer Enable low as well. TX BUFFER ENABLE Logic input. High enables TX LO buffer amplifiers. 12 13 GND PCS MIX IN Low-inductance ground required. 14 MIX GAIN 15 LNA GAIN FRONT-ENDS 7 ENABLE TX BUF PCS mixer RF single-end input. PCS MIX IN Logic input. Logic high turns on PCS or cellular mixer preamp and mixer provides maximum gain. Logic low will bypass the PCS and cellular mixer preamp. MIX GAIN Logic input. High activates CDMA or PCS LNAs. Low selects LNA bypass mode for both bands. LNA GAIN Rev A10 011017 8-41 RF2489 Pin 16 17 Function GND PCS LNA OUT Preliminary Description Interface Schematic Low-inductance ground required. PCS LNA output. Small external inductance required for best impedance match to 50Ω. VCC PCS LNA OUT PCS LNA IN 18 19 20 VCC2 GND PCS LNA IN 21 22 GND CELL LNA IN PCS LNA VCC connection. A series inductance required for matching. Low-inductance ground required. PCS LNA input. Simple external matching required for best performance. Low-inductance ground required. See pin 17. Cellular LNA input. Simple external matching required for best performance. VCC CELL LNA OUT CELL LNA IN CELL LNA EMITTER 23 25 CELL LNA EMITTER CELL LNA OUT ISET1 26 ISET2 27 28 GND CELL MIX IN 24 FRONT-ENDS 8 29 VCC1 30 BAND SEL 31 IP SET Cellular LNA emitter. A small inductor connects this pin to ground. Cellular LNA gain can be adjusted by the inductance. See pin 22. Cellular LNA output. Simple external L-C matching required. See pin 22. Resistor to ground sets both LNA and mixer currents. Lower resistance results in lower currents for both the LNA and mixer. Resistor to ground sets LNA current. Higher resistance results in lower current. Low-inductance ground required. Cellular mixer RF single-end input. External L-C network required for best performance. VCC for internal references, logic, and mixer preamplifiers. Internal RF bypass capacitor. External bypass capacitor between 1nF and 47nF required. Logic input. High level selects PCS band; low level selects cellular band. The LO divider circuitry is disabled when BAND SEL is high, regardless of the state of pin 5 (/2 SELECT). When BAND SEL is low, pin 5 can be selected high or low. If using a single LO input, pin 5 can be tied to a high state allowing BAND SEL to control the LO divider function. Logic input. High selects external LNA current reference set by the resistor connected from ISET2 to ground. CELL MIX IN BAND SEL IP SET 32 IF SEL Logic input. High selects FM IF outputs; low selects CDMA IF outputs. IF SEL 8-42 Rev A10 011017 RF2489 Preliminary Application Schematic VCC 33 nF BAND SEL 5 DNI OUT IP SET 33 nF 6 3 VCC L2 4 1 2 IF SEL F2 GND GND GND GND IN 47 nH C1 VCC 20 kΩ 5.1 kΩ DNI 8.7 nH FM IF OUT 32 0Ω C2 DNI L1 R C1 31 30 29 28 27 26 25 1 24 2 23 3 22 4 21 C1 VCC L2 CDMA IF OUT L1 33 nF R LNA L IN 0Ω C2 47 nH 1.5 nH /2 C1 DNI /2 SELECT LO IN 33 nF 33 nF 5 20 6 19 7 18 LNA H IN 7.5 nH 1 pF VCC 7.5 nH 68 Ω 8 HB LO OUT 2 nH 15 nH 17 9 10 11 12 13 14 15 0Ω 0.5 pF 16 1 nH LB LO OUT DNI LNA GAIN TX BUFF ENABLE MIX GAIN 4 1 VCC 47 nH F1 DNI 5 OUT GND GND GND GND BUF ENABLE IN 2 6 3 33 nF Output Interface Network L1, C1, and R form a current combiner which performs a differential to single-ended conversion at the IF frequency and sets the output impedance. In most cases, the resonance frequency is independent of R and can be set according to the following equation: 1 fIF = 2π L1 (C1 + C EQ) 2 Where CEQ is the equivalent stray capacitance and capacitance looking into pins 1 and 2. An average value to use for CEQ is 2.5pF to 3pF. R can then be used to set the output impedance according to the following equation: R= ( 4 R1 OUT Rev A10 011017 - 1 RP ) -1 where ROUT is the desired output impedance and RP is the parasitic equivalent parallel resistance of L1. C1 should be chosen as high as possible (not greater than 22pF), while maintaining an RP of L1 that allows for the desired ROUT. L2 and C2 serve dual purposes. L2 serves as an output bias choke, and C2 serves as a series DC block. In addition, L2 and C2 may be chosen to form an impedance matching network if the input impedance of the IF filter is not equal to ROUT. Otherwise, L2 is chosen to be large, and C2 is chosen to be large if a DC path to ground is present in the IF filter, or omitted if the filter is DC blocked. 8-43 FRONT-ENDS 8 2 nH RF2489 Preliminary Evaluation Board Schematic IF@184MHz (Download Bill of Materials from www.rfmd.com.) VCC 50 Ω µstrip L1 270 nH 50 Ω µstrip C2 7 pF R2 0Ω L2 120 nH R1 10 kΩ C3 6.8 pF C4 6.8 pF VCC C6 7 pF L3 120 nH R4 10 kΩ R5 0Ω 5 L10 10 nH 50 Ω µstrip 30 29 28 27 26 24 2 23 3 22 4 21 19 7 18 10 11 12 13 14 15 C7 33 nF R12 0Ω L12 7.5 nH C8 33 nF J10 LNA L OUT C20 33 nF 50 Ω µstrip C19 33 nF 50 Ω µstrip J9 LNA L IN J8 LNA H IN C18 1 pF VCC L6 1 nH 16 C14 33 nF C15 DNI R11 0Ω C31 0.5 pF L15 15 nH C16 33 nF 50 Ω µstrip J7 LNA H OUT LNA GAIN C13 33 nF 2489310 Rev. 1 MIX GAIN 4 1 C9 33 nF TX BUFF ENABLE L5 47 nH C12 DNI F1 5 P1 C32 1 µF P2 C10 33 nF + P3 P1-1 1 /2 SELECT P2-1 1 ENABLE 1 VCC P1-2 2 IF SEL P2-2 2 TX BUFF ENABLE 2 GND P1-3 3 IP SET P2-3 3 MIX GAIN 3 GND 4 BAND SEL P2-4 4 LNA GAIN 8-44 L9 47 nH 17 9 ENABLE CON4 L16 1.5 nH C17 33 nF 8 L14 2 nH 50 Ω µstrip C21 1.8 pF 20 6 L13 2 nH C22 DNI 25 L7 7.5 nH R8 68 Ω 50 Ω µstrip 31 1 5 C30 33 nF 50 Ω µstrip R9 5.1 kΩ /2 C5 6.8 pF VCC P1-4 4 1 CON4 P3-1 CON3 C11 33 nF OUT IN 2 6 3 FRONT-ENDS J5 LB LO OUT R10 20 kΩ GND GND GND GND J4 HB LO OUT L4 270 nH 50 Ω µstrip R6 DNI 8 F2 GND GND GND GND VCC C29 33 nF C1 6.8 pF 32 R3 DNI /2 SELECT J3 LO IN 6 3 2 VCC J2 CDMA IF OUT C23 33 nF L11 47 nH C28 33 nF IF SEL J11 MIX L IN C24 DNI OUT C27 33 nF IP SET J1 FM IF OUT C25 33 nF IN C26 33 nF BAND SEL 50 Ω µstrip J6 MIX H IN Rev A10 011017 RF2489 Preliminary Evaluation Board Schematic JCDMA/GPS IF@110MHz VCC 50 Ω µstrip C26 33 nF L1 220 nH 50 Ω µstrip C2 9 pF R2 0Ω L2 220 nH R1 10 kΩ C3 15 pF C4 15 pF L10 11 nH 31 30 29 28 27 26 L4 220 nH 50 Ω µstrip C6 9 pF L3 220 nH 24 2 23 4 C17 3 pF 5 20 C30 33 nF 6 19 50 Ω µstrip 18 8 J9 LNA L IN J8 LNA H IN VCC 17 9 10 11 12 13 14 15 C7 33 nF L14 6.2 nH C16 33 nF 50 Ω µstrip J7 LNA H OUT C14 33 nF C8 33 nF LNA GAIN C13 33 nF 2489310 Rev. 3 JCDMA/GPS MIX GAIN 4 1 C9 33 nF C12 DNI P1 P2 /2 SELECT P2-1 1 P3 ENABLE P1-2 2 IF SEL P2-2 2 TX BUFF ENABLE P1-3 3 IP SET P2-3 3 MIX GAIN BAND SEL CON4 Rev A10 011017 P2-4 4 CON4 C10 33 nF LNA GAIN P3-1 C32 + 1 µF 1 VCC 2 GND 3 GND CON3 C11 33 nF GND GND GND GND F1 OUT IN 2 6 3 L5 47 nH 8 C15 DNI 16 50 Ω µstrip J6 MIX H IN 8-45 FRONT-ENDS L13 2 nH 5 4 50 Ω µstrip L12 5.1 nH L6 3.9 nH R8 68 Ω TX BUFF ENABLE P1-4 C20 33 nF L7 10 nH ENABLE 1 J10 LNA L OUT 21 /2 C5 15 pF 7 50 Ω µstrip L9 47 nH 22 50 Ω µstrip 50 Ω µstrip 50 Ω µstrip C21 1.8 pF C19 33 nF R4 10 kΩ R5 0Ω C22 DNI 25 1 VCC P1-1 4 1 IN R9 5.1 kΩ 3 R6 DNI J5 LB LO OUT R10 22 kΩ L16 1.5 nH VCC J4 HB LO OUT F2 GND GND GND GND VCC C29 33 nF C1 15 pF 32 R3 DNI /2 SELECT J3 LO IN 6 3 2 VCC J2 CDMA IF OUT C23 33 nF L11 47 nH C28 33 nF IF SEL J11 MIX L IN C24 DNI 5 C27 33 nF IP SET J1 FM IF OUT C25 33 nF OUT BAND SEL RF2489 Preliminary Evaluation Board Layout Board Size 3.100” x 2.958” FRONT-ENDS 8 8-46 Rev A10 011017 Preliminary RF2489 FRONT-ENDS 8 Rev A10 011017 8-47 RF2489 Preliminary FRONT-ENDS 8 8-48 Rev A10 011017