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LA7780M - QPSK Downconverter

Description

Pin No.

Features

  • Since a preamplifier is built in, the LA7780M has adequate sensitivity to handle the input signal from the cable directly. (Input signal level:.
  • 30 to +30 dBm).
  • Both internal and external AGC are supported as the AGC amplifier drive technique.
  • The output amplitude of the post amplifier used to drive the A/D converter is 2 Vp-p (typical).

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Datasheet preview – LA7780M

Datasheet Details

Part number LA7780M
Manufacturer Sanyo
File Size 242.75 KB
Description QPSK Downconverter
Datasheet download datasheet LA7780M Datasheet
Additional preview pages of the LA7780M datasheet.

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Full PDF Text Transcription

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Ordering number : EN5268A Monolithic Linear IC LA7780M QPSK Downconverter for CATV Systems Overview The LA7780M is a downconverter for QPSK data demodulation for digital CATV transmission. This IC integrates a preamplifier, an AGC amplifier, a mixer, an oscillator, a post-amplifier, and other circuits in a single chip, and provides all the functions required from cable signal input through output to the A/D converter. Functions • • • • • • • Preamplifier AGC amplifier Mixer Oscillator Post amplifier IF AGC (internal/external) AGC detector Features • Since a preamplifier is built in, the LA7780M has adequate sensitivity to handle the input signal from the cable directly.
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