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參數資料
型號: CS4955
廠商: Cirrus Logic, Inc.
英文描述: NTSC/PAL Digital Video Encoder
中文描述: NTSC / PAL數字視頻編碼器
文件頁數: 1/56頁
文件大小: 937K
代理商: CS4955
Preliminary Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
1
Copyright
Cirrus Logic, Inc. 1999
(All Rights Reserved)
Cirrus Logic, Inc.
P.O. Box 17847, Austin, Texas 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.crystal.com
CS4954
CS4955
NTSC/PAL Digital Video Encoder
Features
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
) and high impedance
(150
) 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
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
CPX1204
l
NTSC closed caption encoder with interrupt
l
CS4955 supports Macrovision copy
protection Version 7
l
Host interface configurable
for parallel or I
2
C
compatible operation
l
On-chip voltage reference
generator
l
+3.3 V or +5 V operation,
CMOS, low-power modes,
tri-state DACs
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.
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.
Parallel or high-speed I
2
C 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 I
2
C mode to help conserve valuable board area.
ORDERING INFORMATION
CS4954-CQ
CS4955-CQ
48-pin TQFP
48-pin TQFP
APR ‘99
DS278PP4
CLK
SDA
ISET
DGND
PDAT[7:0]
RD
WR
ADDR
XTAL_IN
XTAL_OUT
VD[7:0]
HSYNC
VSYNC
FIELD
INT
RESET
I
2
C Interface
Host
Parallel
Interface
Color Sub-carrier Synthesizer
8
Video Formatter
Control
Registers
Chroma Modulate
Chroma Amplifier
Output
Interpolate
LPF
Burst Insert
Chroma Interpolate
LPF
Luma Interpolate
Luma Amplifier
Sync Insert
U,V
Y
Video Timing
Generator
TEST
Current
Reference
Voltage
Reference
VREF
R
DAC
Y
DAC
CVBS
DAC
C
10-Bit
DAC
Σ
VAA
Teletext
Encoder
TTXRQ
TTXDAT
YCbCr to RBG
Color Space
Converter
B
DAC
G
DAC
10-Bit
10-Bit
10-Bit
10-Bit
10-Bit
RGB
RGB
Y
Y
8
相關PDF資料
PDF描述
CS4954-CQ NTSC/PAL Digital Video Encoder
CS496122 New Audio System Processors are Ideal for Digital Audio Networking Applications
CS496102 New Audio System Processors are Ideal for Digital Audio Networking Applications
CS496112 New Audio System Processors are Ideal for Digital Audio Networking Applications
CS4961XX New Audio System Processors are Ideal for Digital Audio Networking Applications
相關代理商/技術參數
參數描述
CS4955-CQ 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:NTSC/PAL Digital Video Encoder
CS4955-CQZ 功能描述:視頻 IC IC NTSC/PAL Digital Video Encoder RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel
CS4955-CQZR 功能描述:視頻 IC IC NTSC/PAL Digital Video Encoder RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel
CS496102 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:New Audio System Processors are Ideal for Digital Audio Networking Applications
CS496102-CQZ 功能描述:音頻 DSP 2x2 CobraNet Audio Network Processor RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風格: 封裝 / 箱體: 封裝:Tube
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