SN761683B

更新时间： 2024-11-06 04:03:31

品牌	Logo	应用领域
德州仪器 - TI		电视
页数	文件大小	规格书
20页	403K
描述
TV TUNER IC

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数据手册

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SN761683B 数据手册

SN761683B

TV TUNER IC

www.ti.com

SLES180–MAY 2006

FEATURES

TSSOP PACKAGE

(TOP VIEW)

•

Single-Chip Mixer/Oscillator and

Phase-Locked Loop (PLL) Synthesizer

VLO OSC B

VLO OSC C

OSC GND

VHI OSC B

VHI OSC C

UHF OSC B1

UHF OSC C1

UHF OSC C2

UHF OSC B2

IF GND

UHF RF IN2

UHF RF IN1

VHF RF IN2

VHF RF IN1

RF GND

MIX OUT2

MIX OUT1

BS4

•

Three-Band Local Oscillator and Mixer

Inter-Integrated Circuit (I²C) Bus Protocol

(Bidirectional Data Transmission)

•

30-V Tuning-Voltage Output

Four NPN-Type Band-Switch (BS) Drivers

Programmable Reference Divider Ratio

(512, 640, or 1024)

•

5-V Power Supply

BS3

BS2

32-Pin Thin Shrink Small-Outline Package

(TSSOP)

BS1

IF OUT1

IF OUT2

ADC

VCC

APPLICATIONS

•

TVs

SDA

VTU

VCR/DVD Recorders

Set-Top Boxes

SCL

XTAL

NC – No internal connection

DESCRIPTION

The SN761683B is a synthesized tuner IC designed

for TV tuning systems. The circuit consists of a

phase-locked loop (PLL) synthesizer, three-band

local oscillator and mixer, 30-V output tuning

amplifier, and four NPN band-switch drivers, and is

available in

a small-outline package. A 15-bit

programmable counter and reference divider are

controlled by inter-integrated circuit (I²C) bus

protocol.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...20

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