ISL3680 ® Data Sheet March 2003 FN8053 Direct Conversion Transceiver Features 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. • Highly integrated Dual Band RF to baseband solution Pinout • RX Voltage gain . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 74dB I_OFFSET- BB_GND/RREF BB_AGC+ BB_AGC- BB_OVLD 4 3 2 1 I_OFFSET+ 6 5 Q_OFFSET- BB_GND/RREF_2 7 Q_OFFSET+ 8 9 10 MIXER_GND_2 11 MIXER_GND 12 MIXER_VCC 13 PE2 15 NC 14 PE1 16 LNA_H/L LB 62 RX_AGC_GND BB_OVLD 61 RX_AGC_VCC RX_Q LB_LNA_IN- 21 60 RX_Q+ 59 RX_Q- RX I I SELECT NC 24 10GHz LO HB_SHIELD_2 25 I 2 Q VREF TX I 56 TX_I+ LB_TX_OUT+ 26 55 TX_IQ SELECT RX Q 53 TX_Q+ TX_I LB 52 TX_QSYNTHESIZER TX_GND 30 51 PRE_GND TX_Q TX_VCC2 31 50 PRE_VDD 2 CP 32 40 41 42 43 44 45 46 47 48 SYNTH_VDD 39 SYNTH_GND 38 CP_GND 37 CP_DO QLO_GND CP_VDD QLO_VCC CLK TX_BB_GND REF_IN TX_BB_VCC QLO_GND_2 36 • Near Chip Scale Package footprint, which improves PCB efficiency and has a thinner profile 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 49 LD/RREF LO_IN- 35 SERIAL INTER. REF IN LO_IN+ TX_AGC TX_DET 34 TX_DET 33 TX_VCC1 • Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat No Leads - Package Outline 54 LE TX Q NC 28 NC 29 58 1.2V_REF 57 DATA I 2 Q LB_TX_OUT- 27 • TX I/Q MTPR, PAR=12 . . . . . . . . . . . . . . . . . . . . . . -45dB MLFP Package 63 RX_I- RX_I LB_SHIELD 19 NC 23 • TX OFDM Output Power . . . . . . . . . . . . . . . . . . . . .-5dBm • Direct simple interface to ISL3880 64 RX_I+ HB_SHIELD 22 • Noise figure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.4dB • TX/RX switching speed . . . . . . . . . . . . . . . . . . . . . . .<1µS LNA_VCC 17 LB_LNA_IN+ 20 • Low supply operation . . . . . . . . . . . . . . . . . . . . 2.7 to 3.3V • RX I/Q MTPR, PAR=12, High Gain . . . . . . . . . . . . . -35dB ISL3680 (QFN) TOP VIEW LNA_GND 18 • Frequency of operation . . . . . . . . . . . . . . . . 2.4 to 2.5GHz • ISA, ISA PnP WLAN cards Ordering Information PART NUMBER ISL3680IR ISL3680IR-TK 1 TEMP. RANGE (oC) -40 to 85 PACKAGE 64 Ld QFN PKG.NO. L64.9x9 Tape and Reel 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 © Intersil Americas Inc. 2003. All Rights Reserved. PRISM® is a registered trademark of Intersil Corporation. PRISM logo is a trademark of Intersil Corporation. Microsoft® and Windows® are registered trademarks of Microsoft Corporation.