ISL3690 ® Data Sheet March 2003 FN8046 Dual Band Direct Conversion Transceiver Features The Intersil ISL3690 is a highly integrated UHF2 process, DUAL BAND direct conversion transceiver and is part of a 2.4/5.2GHz, IEEE802.11a/b/g compliant radio chipset. The ISL3690 directly interfaces with Intersil’s ISL3890 Medium Access Controller with Integrated Baseband processor. The addition of Intersil’s ISL3990 power amplifier and ISL3090 10GHz VCO completes a WLAN transceiver application. • Highly integrated Dual Band RF to baseband solution Pinout • RX I/Q MTPR, PAR=12, High Gain . . . . . . . . . . . . . -35dB ISL3690 (QFN) TOP VIEW • Frequency of operation . 2.4 to 2.5GHz or 5.15 to 5.35GHz • 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 • TX/RX switching speed . . . . . . . . . . . . . . . . . . . . . . . <1µs I_OFFSET- BB_GND/RREF BB_AGC+ BB_AGC- BB_OVLD 5 4 3 2 1 BB_GND/RREF_2 I_OFFSET+ 6 Q_OFFSET8 7 MIXER_GND_2 Q_OFFSET+ 9 MIXER_GND 10 MIXER_VCC 11 PE2 12 13 HB_LB 15 14 PE1 LNA_H/L 16 • Direct simple interface to ISL3890 LNA_VCC 17 LNA_GND 18 LB RX_I LB_SHIELD 19 64 RX_I+ 63 RX_I- 62 RX_AGC_GND 61 RX_AGC_VCC 60 RX_Q+ • QFN Package: - 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 Applications BB_OVLD LB_LNA_IN+ 20 RX_Q LB_LNA_IN- 21 HB_SHIELD 22 RX I HB_LNA_IN+ 23 I SELECT HB_LNA_IN- 24 10GHz LO HB_SHIELD_2 25 I 2 Q VREF TX I Q SELECT RX Q LB_TX_OUT- 27 TX Q HB_TX_OUT+ 28 1.2V_REF SYNTHESIZER TX_GND 30 TX_Q 2 TX_VCC2 31 39 40 41 42 43 44 45 CLK CP_VDD CP_DO 48 38 REF_IN 47 37 QLO_GND_2 46 36 LO_IN- SYNTH_VDD LO_IN+ SYNTH_GND QLO_GND 1 CP_GND QLO_VCC 35 REF IN TX_BB_GND TX_BB_VCC TX_AGC TX_DET 34 TX_DET • Spread spectrum Dual Band WLAN RF modems TX_I+ 55 TX_I- • TDMA or CSMA packet protocol Dual Band radios 54 LE • PCI wireless LAN cards 53 TX_Q+ 52 TX_Q- 51 PRE_GND 50 PRE_VDD 49 LD/RREF • ISA, ISA PnP WLAN cards Ordering Information SERIAL INTER. CP TX_VCC1 32 • High data rate wireless LAN systems targeting IEEE802.11 a/b/g standards 56 TX_I LB 33 RX_Q- 58 57 DATA I 2 Q LB_TX_OUT+ 26 HB_TX_OUT- 29 59 • PC card wireless LAN adapters PART NUMBER ISL3690IR ISL3690IR-TK 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. 2002. 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.