Preliminary FM2422 dual-mode 82.11 b/g RF Front-End Module QFN WH378 Rev. 1 2.4-2.5 GHz RF Front-End Module (Low Current) Note: All information provided is subjected to change without prior notice. Product description The FM2422 is a fully integrated RF front-end module designed for dual-mode 82.11b/g WLAN applications. The device includes T/R switch, a low noise amplifier with band-pass filter, a low-current linearized power amplifier (LPA), low-pass filter (LPF), and power detector. Biasing and matching circuitry are all integrated to minimize the external components required. Features 2.4 to 2.5 GHz Operating Range 82.11b/g ACPR compliant up to +18dBm 82.11g/54 Mbps less than 5% EVM at Pout =+15dBm with low Icc=6mA On-chip power detector +3.3V Power Supply Low cost standard QFN package Miniature size: 4mm x 4mm x.8 mm Applications IEEE 82.11b DSSS WLAN IEEE 82.11g OFDM WLAN HomeRF TM 2.4GHz Cordless Phones and ISM Radios Product Advantages Meets all 82.11b/g RF front-end module performance requirements, excluding transceiver RFIC. Miniature package, 4mm x 4mm x.8mm. Meets all existing form factors; card bus, mini- PCI, embedded NB, USB, Compact Flash. Offers the best overall EVM/ACPR/Icc/ PAE performance. Transmit path includes LPF to eliminate unwanted 2 nd & 3 rd harmonics to meet FCC requirements. Works with most transceiver RFIC architectures. Replaces over 3 discrete and IC components with one single front-end module. Eliminates major yield loss for card module sub-system, system, and motherboard by providing pre-screened and guaranteed performance spec at module level. Module customization is available at volume. Completed product support and custom reference designs. Block Diagram Truth Table State V1 V2 ANT 1 1 TX 2 1 RX V1, V2: = to +.2V, 1 = +3 to +5V Epic Communications, Inc. TEL: (3) 577-5776 (North Gate) No. 1 Innovation Road II FAX: (3) 577-518 Science Park, Hsinchu 3, Taiwan, R.O.C. August 25
Dual-mode 82.11 b/g RF Front-End Module Specifications Absolute Maximum Ratings Vcc, V1, V2 +5V Vcntl +5V RF Input Power +1 dbm Operating Temperature Range -4 C to +85 C Storage Temperature Range -65 C to +125 C Total Power Dissipation, Tc +25 C.92 W Maximum Junction Temperature, Tj,max 175 C Transmit Path Electrical Characteristics at 25 C PARAMETER CONDITIONS MIN TYP MAX UNITS Frequency Range 2.4 2.5 GHz Power Gain Vcc = 3.3V, Vcntl = 2.8V 23 25 28 db Pout = +2 dbm Input Return Loss 1 db Output Return Loss 1 db Isolation: Tx Rx Tx Antennas 18 18 2 2 db db P1dB 245MHz, Vcc=3.3V 21 23 dbm Bias current @3.3V Quiescent 16 18 64QAM/54Mbps, Pout=15dBm 55 65 64QAM/54Mbps, Pout=18dBm 84 9 ma Sleep Mode current Vcc = 3.3V, Vcntl = V 1 ua Detector voltage range Pout=dBm 1 mv Pout=15dBm Pout=2dBm 4 9 1 st side lobe @ Pout=18dBm 1Mbps Long CCK -45-4 dbc 2 nd side lobe @ Pout=18dBm 1Mbps Long CCK -55-5 dbc 2 nd Harmonics @ Pout=18dBm -42-41 dbm EVM at Pout=15dBm 64QAM/54Mbps 5 % Thermal Resistance, θjc, Pout = 2 dbm 158 C/W Max. Operation Case Temp. Tj = 15 C, Pout = 2 dbm Tj = 15 C, Pout = 18 dbm 9 16 C Receive Path Electrical Characteristics at 25 C PARAMETER CONDITIONS MIN TYP MAX UNITS RF Frequency Range 2.4 2.5 GHz Gain 6 7.5 db Input Return Loss 15 db Output Return Loss 15 db Rx-to-antenna Isolation 18 2 db Bias current @ 3.3V 12.5 14 ma Noise Figure 3 db IP1dB 245MHz, Vcc=3.3V -9 dbm Epic Communications, Inc. TEL: (3) 577-5776 (North Gate) No. 1 Innovation Road II FAX: (3) 577-518 Science Park, Hsinchu 3, Taiwan, R.O.C. Page 2 of 8
Dual-mode 82.11 b/g RF Front-End Module Measured Data Transmit Channel S-Parameters Receive Channel S-Parameters S-Parameter Data for A315FM2422-QFN2 Test ID 19361, Vcc=3.3, Vcntl=2.8 3 2 3 S-Parameter (db) 2 1-1 -2 db(s11) db(s21) db(s12) db(s22) S-Parameter (db) 1-1 -2 db(s11) db(s21) db(s12) db(s22) -3-3 -4 1 2 3 4 5 6 Frequency (GHz) -4 2 3 4 5 6 Frequency (GHz) Transmit Power Transfer at 2.45 GHz Receive Channel Power Transfer at 2.45GHz 3 Power Transfer Data for A315FM2422-QFN1 Test ID 19364, F=2.45 GHz, Vcc=3.3, Vcntl=2.8 3 1 Power Transfer Data for A315FM2422-QFN1 Test ID 19365, F=2.45 GHz, Vcc=3.3V 5 25 25 5 4 Pout(dBm), Gain(dB), PAE(%) 2 15 1 5 2 15 1 5 Bias Current (ma) Pout(dBm), Gain(dB), PAE(%) -5-1 3 2 1 Bias Current (ma) -2-15 -1-5 5 1 Pin (dbm) Pout(dBm) Gain(dB) PAE(%) Bias(mA) Note: Icc includes current from both PA & LNA (~1mA) Intermodulation Performance at 2.45 GHz -15-2 -15-1 -5 5 1 Pin (dbm) Pout(dBm) Gain(dB) PAE(%) Bias(mA) Receive Channel Noise Figure and Assoc. Gain (Note: COB Data) Intermodulation Data for A315FM2422-QFN2 Test ID 19363, F1=2.45 GHz, Vcc=3.3, Vcntl=2.8 Noise Figure and Associated Gain of Receive Path 15 6 3 5 25 1 IM3, IM5 (db) / PAE (%) 4 3 2 1 2 15 1 5 Bias (ma) IM3(dB) IM5(dB) PAE(%) Bias(mA) Noise Figure (db) 5-5 -1 NF(dB) G(dB) 5 1 15 2 25 2-Tone Pout (dbm) -15 2 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3 Frequency (GHz) Epic Communications, Inc. TEL: (3) 577-5776 (North Gate) No. 1 Innovation Road II FAX: (3) 577-518 Science Park, Hsinchu 3, Taiwan, R.O.C. Page 3 of 8
Dual-mode 82.11 b/g RF Front-End Module ACPR for 82.11b (1 Mbps Long) Pout = 19.1 dbm, Freq = 2412 MHz ACPR for 82.11b (1 MB/s) Pout = 19.1 dbm, Freq = 2412 MHz, Test ID = 19366 ACPR for 82.11g (54 Mbps) Pout = 19 dbm, Freq = 2412 MHz ACPR for 82.11a/g (54 MB/s) Pout = 19 dbm, Freq = 2412 MHz, Test ID = 1937 1-1 1-1 -2-3 -2-3 -4-4 -5-5 -6-4 -3-2 -1 1 2 3 4-6 -4-3 -2-1 1 2 3 4 ACPR for 82.11b (1 Mbps Long) Pout = 19 dbm, Freq = 2437 MHz ACPR for 82.11b (1 MB/s) Pout = 19 dbm, Freq = 2437 MHz, Test ID = 19367 ACPR for 82.11g (54 Mbps) Pout = 19 dbm, Freq = 2437 MHz ACPR for 82.11a/g (54 MB/s) Pout = 19 dbm, Freq = 2437 MHz, Test ID = 19371 1-1 1-1 -2-3 -2-3 -4-4 -5-5 -6-4 -3-2 -1 1 2 3 4-6 -4-3 -2-1 1 2 3 4 ACPR for 82.11b (1 Mbps Long) Pout = 18.5 dbm, Freq = 2484 MHz ACPR for 82.11b (1 MB/s) Pout = 18.5 dbm, Freq = 2484 MHz, Test ID = 19369 ACPR for 82.11g (54 Mbps) Pout = 19 dbm, Freq = 2484 MHz ACPR for 82.11a/g (54 MB/s) Pout = 19 dbm, Freq = 2484 MHz, Test ID = 19373 1-1 1-1 -2-3 -2-3 -4-4 -5-5 -6-4 -3-2 -1 1 2 3 4-6 -4-3 -2-1 1 2 3 4 Epic Communications, Inc. TEL: (3) 577-5776 (North Gate) No. 1 Innovation Road II FAX: (3) 577-518 Science Park, Hsinchu 3, Taiwan, R.O.C. Page 4 of 8
Dual-mode 82.11 b/g RF Front-End Module Measured EVM (un-corrected) and Icc vs Pout (Vcc=+3.3V and Vctl = 2.8V) 12 A315FM2422-QFN2.csv Vcc(V)=3.3, Vcntl(V)=2.8.12 1.1 Evm_data(%) 8 6 4.8.6.4 Icc(A) 2.2. 5 6 7 8 9 1 11 12 13 14 15 16 17 18 19 2 Pout(dBm) 2412 MHz Evm_data(%) 2437 MHz Evm_data(%) 2484 MHz Evm_data(%) 2412 MHz Icc(A) 2437 MHz Icc(A) 2484 MHz Icc(A) Measured Peak Detector Output Voltage Peak Detector Voltage (V) 2 1.8 1.6 1.4 1.2 1.8.6.4.2 Peak Detector Voltage vs. Pout for A315FM2422-QFN1 Test ID 19364, F=2.45 GHz, Vcc=3.3, Vcntl=2.8 5 1 15 2 25 Pout (dbm) Epic Communications, Inc. TEL: (3) 577-5776 (North Gate) No. 1 Innovation Road II FAX: (3) 577-518 Science Park, Hsinchu 3, Taiwan, R.O.C. Page 5 of 8
Dual-mode 82.11 b/g RF Front-End Module Application Note Specified data in datasheet is evaluated with configuration below. However, fine tuning may be required due to difference in the actual product board layout. Evaluation PCB design will be provided upon request. It is very important to make all RF and DC connections before applying RF or DC power. Use short, shielded twisted pair test leads to avoid interference. Always wear an ESD wrist strap when handling RF IC. Outline Drawing (bottom view) FM2422 PIN FUNCTION 1 N/C 13 Vc3 (PA) 2 LNA Vcc 14 N/C 3 Vc1 (PA) 15 N/C 4 N/C 16 ANT 5 N/C 17 N/C 6 2.4GHz Tx 18 N/C 7 N/C 19 V2 (SW) 8 Vcntl 2 V1 (SW) 9 N/C 21 N/C 1 N/C 22 N/C 11 DET REF 23 N/C 12 DET 24 2.4GHz Rx Typical Application Circuit Epic Communications, Inc. TEL: (3) 577-5776 (North Gate) No. 1 Innovation Road II FAX: (3) 577-518 Science Park, Hsinchu 3, Taiwan, R.O.C. Page 6 of 8
Dual-mode 82.11 b/g RF Front-End Module Evaluation Board Layout Epic Communications, Inc. TEL: (3) 577-5776 (North Gate) No. 1 Innovation Road II FAX: (3) 577-518 Science Park, Hsinchu 3, Taiwan, R.O.C. Page 7 of 8
Dual-mode 82.11 b/g RF Front-End Module Ordering and Packing Information Packing in tape & reel, where x=1, 3 i.e. 1k/reel, 3k Epicom Inc. reserves the right to make changes to the product(s) or information contained herein without notice. The information contained in this document is considered to be accurate as of the date of publication. No liability is assumed by Epicom for use of any information contained in this document, or for infringement of any patent rights or any other proprietary rights of third parties which may result from such use. Epic Communications, Inc. TEL: (3) 577-5776 (North Gate) No. 1 Innovation Road II FAX: (3) 577-518 Science Park, Hsinchu 3, Taiwan, R.O.C. Page 8 of 8