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ISL3684 Datasheet, PDF (1/1 Pages) Intersil Corporation – Direct Down Conversion Transceiver
®
PROPRIETARY
Data Sheet
March 2002
ISL3684
FN8001.2
Direct Down Conversion Transceiver
The Intersil ISL3684 Wireless LAN
Integrated RF Front End is part the
PRISM 3, 2.4HGz 11Mbit, 802.11b
compliant radio chipset. The
ISL3684 interfaces directly with Intersil's ISL3871 Integrated
LAN Medium Access Controller with Baseband Processor.
The addition of the ISL3984 Power Amplifier and ISL3084
5GHz VCO completes the PRISM 3 LAN radio application.
Pinout
ISL3684
MLFP
TOP VIEW
LNA_VCC 15
LNA_GND 16
SHIELD 17
LNA_IN+ 18
LNA_IN- 19
SHIELD 20
PE1 21
TX_GND 22
TX_OUT 23
TX_GND 24
TX_VCC 25
TX_AGC 26
TX_BB_VCC 27
TX_BB_GND 28
RECEIVE SECTION
PINOUTRTASNUSMBIJTESCECTTTIOON CHANGE
PLL/SYNTHESIZER
56 RX_I+
55 RX_I-
54 RX_AGC_GND
53 RX_AGC_VCC
52 RX_Q+
51 RX_Q-
50 TX_I+
49 TX_I-
48 1.2_REF
47 TX_Q+
46 TX_Q-
45 LD
44 PRE_VDD
43 PRE_GND
Features
• Highly integrated RF to baseband solution
• Frequency of operation . . . . . . . . . . . . 2.4GHz to 2.5GHz
• Low supply operation . . . . . . . . . . . . . . . . . . . 2.7V to 3.3V
• Noise figure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.4dB
• Voltage gain . . . . . . . . . . . . . . . . . . . . . . -2.5dB to 88.5dB
• Gain and phase balance . . . . . . . . . . . . . . . . ±0.5dB, ±2deg.
• TX/RX switching speed . . . . . . . . . . . . . . . . . . . . . . . <1µs
• Direct simple interface to ISL3871
Applications
• PC card wireless LAN adapters
• High data rate wireless LAN systems targeting
IEEE802.11b standard
• Spread spectrum WLAN RF modems
• TDMA or CSMA packet protocol radios
• PCI wireless LAN cards
• ISA, ISA PnP WLAN cards
• PCN / wireless PBX / wireless local loop
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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Copyright © Intersil Americas Inc. 2002. All Rights Reserved. PRISM® is a registered trademark of Intersil Corporation.
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