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HFA3763

Intersil Corporation
Part Number HFA3763
Manufacturer Intersil Corporation
Description 400MHz Quadrature Modulator and AGC
Published Mar 23, 2005
Detailed Description HFA3763 Data Sheet June 1999 File Number 4237.4 400MHz Quadrature Modulator and AGC The HFA3763 is a highly integrated ...
Datasheet PDF File HFA3763 PDF File

HFA3763
HFA3763

Overview
HFA3763 Data Sheet June 1999 File Number 4237.
4 400MHz Quadrature Modulator and AGC The HFA3763 is a highly integrated baseband converter for quadrature modulation applications.
The HFA3763 400MHz quadrature modulator and AGC is one of the seven chips in the PRISM® full duplex chip set (see Typical Application Diagram).
It features all the necessary blocks for baseband modulation of I and Q signals.
An output AGC and Baseband shaping filters are integrated in the design.
Four filter bandwidths are programmable via a two bit digital control interface.
In addition, these filters are continuously tunable over a ±20% frequency range via one external resistor.
The modulator channel receives digital or analog I and Q data for processing.
To achieve broadband operation, the Local Oscillator frequency input is required to be twice the desired frequency of modulation.
A selectable buffered divide by 2 LO output and a stable reference voltage are provided for convenience of the user.
™ Features • Integrates all IF Transmit Functions • Broad Frequency Range .
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10MHz to 400MHz • I/Q Amplitude and Phase Balance .
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2dB, 2o • 5th Order Programmable Low Pass Filter.
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2.
2MHz - 17.
6MHz • 400MHz Output AGC Amplifier/Attenuator .
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45dB • Selectable Digital or Analog TX Baseband Inputs • Low LO Drive Level .
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-15dBm • Fast Transmit-on Switching .
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1µs • Power Management/Standby Mode • Single Supply 2.
7V to 5.
5V Operation Applications • Wireless Local Loop Systems • Wireless Local Area Networks • PCMCIA Wireless Duplex Transceivers Ordering Information PART NUMBER HFA3763IN TEMP.
RANGE (oC) -40 to 85 PACKAGE 80 Ld TQFP PKG.
NO.
Q80.
14x14 • ISM Systems • TDMA Packet Protocol Radios • PCS/Wireless PBX Simplified Block Diagram LPF_TUNE_1 LPF_TUNE_0 LPF_SEL0 LPF_SEL1 2V REF 0o/90o MOD_LO_IN 2V REF MOD_LO_OUT LO_GND ÷2 LP...


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