Datasheet > SN761677_14

SN761677_14

更新时间： 2024-09-16 02:58:39

品牌	Logo	应用领域
德州仪器 - TI		录像机电视
页数	文件大小	规格书
21页	210K
描述
TV/VCR TUNER IC WITH DC/DC CONVERTER

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数据手册

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SN761677_14 数据手册

SN761677

www.ti.com

SLES066A – DECEMBER 2002

TV/VCR TUNER IC WITH DC/DC CONVERTER

FEATURES

DA PACKAGE (TOP VIEW)

38-PIN TSSOP (DA)

Single Chip Mixer/Oscillator, Synthesizer, and

30-V DC/DC Converter for Tuning Amplifier

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

BS1

VHF-L, VHF-H, UHF 3-Band Local Oscillator

I C Bus Protocol

Four Data Bytes Transmission

Low Noise DC/DC Converter

4ch NPN Emitter Follower Type Band Switch

Drivers

BS2

BS3

4ch NPN Open Collector Type Ports

IF OUT1

BS4

Programmable Reference Divider Ratio

(31.25 kHz, 50 kHz, or 62 kHz)

IF OUT2

VCC

ADC/TEST

5-V Power Supply

VTU

38-Pin TSSOP Package

TUVCC(5V)

TUGND

SDA

SCL

VDC(DC/DCout)

XTAL

DESCRIPTION

The SN761677 is a single-chip synthesized tuner IC

designed for TV/VCR tuning systems. The circuit consists

of a PLL synthesizer, 3-band local oscillators and mixer,

30-V dc/dc converter for tuning the amplifier, four NPN

emitter follower band drivers, four NPN open collector

ports, and is available in a small package outline. The

15-bit programmable counter and reference divider are

controlled by I²C bus control. Tuning step frequency is

selectable by the reference divider ratio for a 4-MHz Xtal

oscillator.

Pleasebe 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 Texas Instruments standard warranty.

Production processing does not necessarily include testing of all parameters.

12 3 4 5 6 7...21

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与SN761677_14相关器件

型号	品牌	获取价格	描述	数据表
SN761677DA	TI	获取价格	TV/VCR Tuner IC With DC/DC Converter 38-TSSOP -20 to 85
SN761677DAR	TI	获取价格	TV/VCR Tuner IC With DC/DC Converter 38-TSSOP -20 to 85
SN761677DARG4	TI	获取价格	3-BAND, VIDEO TUNER, PDSO38, GREEN, PLASTIC, TSSOP-38
SN761677DBTR	TI	获取价格	TV/VCR Tuner IC With DC/DC Converter 38-TSSOP
SN761677DBTRG4	TI	获取价格	3-BAND, VIDEO TUNER, PDSO38, GREEN, PLASTIC, TSSOP-38
SN761678	TI	获取价格	TV/VCR TUNER
SN761678B	TI	获取价格	TV TUNER IC
SN761678B_14	TI	获取价格	TV TUNER IC
SN761678BDBT	TI	获取价格	TV TUNER IC
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