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HFA3683A Datasheet, PDF (1/17 Pages) Intersil Corporation – 2.4GHz RF/IF Converter and Synthesizer | |||
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TM
Data Sheet
HFA3683A
June 2000 File Number 4634.5
2.4GHz RF/IF Converter and Synthesizer
The HFA3683A is a monolithic SiGe
half-duplex RF/IF transceiver designed
to operate in the 2.4GHz ISM band.
The receive chain features a low noise,
gain selectable ampliï¬er (LNA) followed
by a down-converter mixer. An up-converter mixer and a
high performance preampliï¬er compose the transmit chain.
The remaining circuitry comprises a high frequency Phase
Locked Loop (PLL) synthesizer with a three wire
programmable interface for local oscillator applications.
A reduced ï¬lter count is realized by multiplexing the receive
and transmit IF paths and by sharing a common differential
matching network. Furthermore, both transmit and receive
RF ampliï¬ers can be directly connected to mixers. The
inherent image rejection of both the transmit and receive
functions allow this economic advantage.
The HFA3683A is housed in a 64 lead TQFP package well
suited for PCMCIA board applications.
Ordering Information
PART
NUMBER
HFA3683AIN
HFA3683AIN96
TEMP. RANGE
(oC)
PACKAGE PKG. NO.
-40 to 85 64 Ld TQFP Q64.10x10
-40 to 85 Tape and Reel
Simpliï¬ed Block Diagram
RX_IN
CP_DO
INTERFACE
REF_IN
TXA_OUT
PLL
MODULE
RX_MX_OUT
LO_IN
TX_MX_IN
Features
⢠Highly Integrated
⢠Multiplexed RX/TX IF Path Utilizes Single IF Filter
⢠Programmable Synthesizer
⢠Gain Selectable LNA
⢠Power Management/Standby Mode
⢠Single Supply 2.7V to 3.3V Operation
Cascaded LNA/Mixer (High Gain)
⢠Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25dB
⢠SSB Noise Figure. . . . . . . . . . . . . . . . . . . . . . . . . . . 3.7dB
⢠Input IP3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -13dBm
⢠IF Frequency . . . . . . . . . . . . . . . . . . . 280MHz to 600MHz
Cascaded LNA/Mixer (Low Gain)
⢠Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -5dB
⢠Input P1dB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +2.5dBm
⢠IF Frequency . . . . . . . . . . . . . . . . . . . 280MHz to 600MHz
Cascaded Mixer/Preampliï¬er
⢠Transmit Cascaded Mixer/Preampliï¬er Gain . . . . . . .25dB
⢠SSB Noise Figure. . . . . . . . . . . . . . . . . . . . . . . . . . . .10dB
⢠Output P1dB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4dBm
⢠IF Frequency . . . . . . . . . . . . . . . . . . . 280MHz to 600MHz
Applications
⢠IEEE802.11 1MBPS and 2MBPS Standard
⢠Systems Targeting IEEE802.11, 11MBPS Standard
⢠Wireless Local Area Networks
⢠PCMCIA Wireless Transceivers
⢠ISM Systems
⢠TDMA Packet Protocol Radios
2-1
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 trademark of Intersil Corporation. | Copyright © Intersil Corporation 2000
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