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(R) ISL3680 Data Sheet March 2003 FN8053 Direct Conversion Transceiver The Intersil ISL3680 is a highly integrated UHF2 process, direct conversion transceiver and is part of a 2.4GHz, IEEE802.11b/g compliant radio chipset. The ISL3680 directly interfaces with Intersil's ISL3880 Medium Access Controller with Integrated Baseband processor. The addition of Intersil's ISL3980 power amplifier and ISL3090 10GHz VCO completes a WLAN transceiver application. Features * Highly integrated Dual Band RF to baseband solution * Frequency of operation . . . . . . . . . . . . . . . . 2.4 to 2.5GHz * Low supply operation . . . . . . . . . . . . . . . . . . . . 2.7 to 3.3V * Noise figure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.4dB * TX OFDM Output Power . . . . . . . . . . . . . . . . . . . . .-5dBm * TX I/Q MTPR, PAR=12 . . . . . . . . . . . . . . . . . . . . . . -45dB * RX Voltage gain . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 74dB Pinout ISL3680 (QFN) TOP VIEW BB_GND/RREF_2 10 MIXER_GND_2 BB_GND/RREF 11 MIXER_GND 12 MIXER_VCC Q_OFFSET+ * RX I/Q MTPR, PAR=12, High Gain . . . . . . . . . . . . . -35dB * TX/RX switching speed . . . . . . . . . . . . . . . . . . . . . . .<1S * Direct simple interface to ISL3880 BB_AGC+ BB_OVLD BB_AGCI_OFFSET- Q_OFFSET- 16 LNA_H/L I_OFFSET+ 13 PE2 15 NC 14 PE1 MLFP Package 64 RX_I+ LNA_VCC 17 LNA_GND 18 LB_SHIELD 19 LB_LNA_IN+ 20 LB_LNA_IN- 21 HB_SHIELD 22 NC 23 NC 24 HB_SHIELD_2 25 LB_TX_OUT+ 26 LB_TX_OUT- 27 NC 28 NC 29 TX_GND 30 TX_Q TX_VCC2 31 TX_VCC1 32 33 34 35 36 TX_DET TX_DET 37 38 39 40 41 2 CP REF IN 42 43 44 45 46 47 48 SERIAL INTER. LB TX_I SYNTHESIZER Q SELECT RX Q TX Q 10GHz LO I 2 Q I SELECT I 2 Q RX I TX I VREF BB_OVLD RX_Q LB RX_I * Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat No Leads - Package Outline * Near Chip Scale Package footprint, which improves PCB efficiency and has a thinner profile 9 8 7 6 5 4 3 2 1 63 RX_I62 RX_AGC_GND 61 RX_AGC_VCC 60 RX_Q+ 59 RX_Q58 1.2V_REF 57 DATA 56 TX_I+ 55 TX_I54 LE 53 TX_Q+ 52 TX_Q51 PRE_GND 50 PRE_VDD 49 LD/RREF Applications * PC card wireless LAN adapters * High data rate wireless LAN systems targeting IEEE802.11 b/g standards * Spread spectrum Dual Band WLAN RF modems * TDMA or CSMA packet protocol Dual Band radios * PCI wireless LAN cards * ISA, ISA PnP WLAN cards TX_AGC TX_BB_VCC TX_BB_GND QLO_VCC QLO_GND LO_IN+ LO_IN- 1 QLO_GND_2 REF_IN CLK CP_VDD CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright (c) Intersil Americas Inc. 2003. All Rights Reserved. PRISM(R) is a registered trademark of Intersil Corporation. PRISM logo is a trademark of Intersil Corporation. Microsoft(R) and Windows(R) are registered trademarks of Microsoft Corporation. CP_DO CP_GND SYNTH_GND SYNTH_VDD Ordering Information PART NUMBER ISL3680IR ISL3680IR-TK TEMP. RANGE (oC) -40 to 85 Tape and Reel PACKAGE 64 Ld QFN PKG.NO. L64.9x9 |
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