Datasheet > U6220B

U6220B

更新时间： 2024-09-13 03:24:55

品牌	Logo	应用领域
TEMIC		电视录像机
页数	文件大小	规格书
14页	183K
描述
1.3 GHz PLL for TV- and VCR- Tuner

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U6220B 数据手册

U6220B

1.3 GHz PLL for TV- and VCR- Tuner

Description

The U6220B is a single chip frequency synthesizer with switching. The U6220B is especially designed for low

I C bus and 3-wire bus control (universal bus). This IC cost, high performance 2-band and EasyLink tuners

contains a high frequency prescaler, a crystal oscillator, (please see application note ANT017 ‘Semiconductors

a switchable reference divider, 5 open collector switching for TV Tuners - The New EasyLink Concept’).

outputs and an additional mixer switch output for band

Features

1.3 GHz divide-by-8 prescaler integrated

EasyLink interface to MOSMIC and mixer IC

Universal bus:

3-wire bus mode:

4 port outputs (open collector)

Lock-signal output (open collector)

Low power consumption (typ. 5 V / 20 mA)

Electrostatic protection according to MIL-STD 883

SO16 small package

I C bus or 3-wire bus

I C bus software compatible to U6204B

3-wire bus software compatible to U6359B (18 bit)

I C bus mode:

5 port outputs (open collector)

4 addresses selectable at Pin 3 for multituner

application

Block Diagram

AS / ENA

SCL

VHF

Universal bus

control

5 bit latch

VHF L/H

UHF

( I C–bus or

3–wire bus)

SDA

Ports

P6 / Lock

FM Trap

7 bit latch

8 bit latch

6 bit latch

GND

15 bit latch

FPRD

RFi

15 bit counter

Prescaler

Phase

detector

Charge

pump

RD1

256 / 512 / 1024

RD2

Oscillator

CRYSTAL

FRFD

12426

Figure 1. Block diagram

TELEFUNKEN Semiconductors

1 (14)

Rev. A2, 23-Sep-96

Preliminary Information

12 3 4 5 6 7...14

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