CS4955-CQ

更新时间： 2024-09-29 22:25:27

品牌	Logo	应用领域
凌云 - CIRRUS		编码器
页数	文件大小	规格书
56页	892K
描述
NTSC/PAL Digital Video Encoder

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中文翻译

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CS4955-CQ 数据手册

CS4954

CS4955

NTSC/PAL Digital Video Encoder

Features

Description

The CS4954/5 provides full conversion from digital video

formats YCbCr or YUV into NTSC and PAL Composite,

Y/C (S-video) and RGB, or YUV analog video. Input for-

mats can be 27 MHz 8-bit YUV, 8-bit YCbCr, or ITU

R.BT656 with support for EAV/SAV codes. Video output

can be formatted to be compatible with NTSC-M, NTSC-

J, PAL-B,D,G,H,I,M,N, and Combination N systems.

Closed Caption is supported in NTSC. Teletext is sup-

ported for NTSC and PAL.

l Six DACs providing simultaneous composite,

S-video, and RGB or Component YUV

outputs

l Programmable DAC output currents for low

imped-ance (37.5 Ω) and high impedance

(150 Ω) loads.

l Multi-standard support for NTSC-M, NTSC-

JAPAN, PAL (B, D, G, H, I, M, N,

Combination N)

l ITU R.BT656 input mode supporting

EAV/SAV codes and CCIR601 Master/Slave

input modes

Six 10-bit DACs provide two channels for an S-Video

output port, one or two composite video outputs, and

three RGB or YUV outputs. Two-times oversampling re-

duces the output filter requirements and guarantees no

DAC-related modulation components within the speci-

fied bandwidth of any of the supported video standards.

l Programmable HSYNC and VSYNC timing

l Multistandard Teletext (Europe, NABTS,

WST) support

l VBI encoding support

l Wide-Screen Signaling (WSS) support, EIA-J

Parallel or high-speed I²C compatible control interfaces are

provided for flexibility in system design. The parallel interface

doubles as a general purpose I/O port when the CS4954/5 is

in I²C mode to help conserve valuable board area.

CPX1204

ORDERING INFORMATION

l NTSC closed caption encoder with interrupt

l CS4955 supports Macrovision copy

CS4954-CQ

CS4955-CQ

48-pin TQFP

protection Version 7

l Host interface configurable

for parallel or I C

compatible operation

l On-chip voltage reference

VAA

CLK

Output

Interpolate

LPF

10-Bit

DAC

I²C Interface

SCL

SDA

Control

Registers

10-Bit

Chroma Amplifier

Chroma Modulate

Burst Insert

PDAT[7:0]

CVBS

DAC

Host

Parallel

generator

10-Bit

DAC

Interface

ADDR

l +3.3 V or +5 V operation,

CMOS, low-power modes,

tri-state DACs

XTAL_IN

XTAL_OUT

10-Bit

DAC

Color Sub-carrier Synthesizer

Chroma Interpolate

10-Bit

DAC

YCbCr to RBG

LPF

U,V

Teletext

Encoder

TTXDAT

TTXRQ

Color Space

Converter

10-Bit

DAC

Video Formatter

VD[7:0]

Luma Interpolate

Luma Amplifier

HSYNC

VSYNC

FIELD

INT

Voltage

Reference

VREF

ISET

Video Timing

Generator

Current

Reference

Sync Insert

RESET

RGB

DGND

TEST

This document contains information for a new product.

Cirrus Logic reserves the right to modify this product without notice.

Preliminary Product Information

Cirrus Logic, Inc.

APR ‘99

DS278PP4

P.O. Box 17847, Austin, Texas 78760

(512) 445 7222 FAX: (512) 445 7581

http://www.crystal.com

12 3 4 5 6 7...56

中文翻译

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与CS4955-CQ相关器件

型号	品牌	获取价格	描述	数据表
CS4955-CQZ	CIRRUS	获取价格	NTSC/PAL Digital Video Encoder
CS496102	CIRRUS	获取价格	New Audio System Processors are Ideal for Digital Audio Networking Applications
CS496102-CQZ	CIRRUS	获取价格	Digital Audio Networking Processor
CS496102-CQZ/A1	CIRRUS	获取价格	Digital Audio Networking Processor
CS496112	CIRRUS	获取价格	New Audio System Processors are Ideal for Digital Audio Networking Applications
CS496112-CQZ	CIRRUS	获取价格	Digital Audio Networking Processor
CS496112-CQZ/A1	CIRRUS	获取价格	Digital Audio Networking Processor
CS496122	CIRRUS	获取价格	New Audio System Processors are Ideal for Digital Audio Networking Applications
CS496122-CQZ	CIRRUS	获取价格	Digital Audio Networking Processor
CS496122-CQZ/A1	CIRRUS	获取价格	Digital Audio Networking Processor

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