Radio tuning PLL frequency synthesizers

文件：650.67 Kbytes 页数：14 Pages

PHI

PHI

TSA6057

Overview

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Radio tuning PLL frequency synthesizers

文件：650.67 Kbytes 页数：14 Pages

PHI

PHI

Radio tuning PLL frequency synthesizer

GENERAL DESCRIPTION\nThe TSA6057 is a bipolar single chip frequency synthesizer manufactured in SUBILO-N technology\n(components laterally separated by oxide). It performs all the tuning functions of a PLL radio tuning system. The IC is designed for application in all types of radio receivers.FEATUR • On-chip AM and FM prescalers with high input sensitivity\n• On-chip high performance one input (two output) tuning voltage amplifier for the AM and FM loop filters\n• On-chip 2-level current amplifier (charge pump) to adjust the loop gain\n• Only one reference oscillator (4 MHz) for both AM and FM;

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