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| 型号： | SAA7134HL |
| 厂商： | NXP Semiconductors N.V. |
| 元件分类： | 通用总线功能 |
| 英文描述： | PCI audio and video broadcast decoder |
| 文件页数： | 13/51页 |
| 文件大小： | 233K |
| 代理商： | SAA7134HL |
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SAA7134HL_4
Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Product data sheet
Rev. 04 — 31 March 2006
13 of 51
Philips Semiconductors
SAA7134HL
PCI audio and video broadcast decoder
6.
Functional description
6.1 Overview of internal functions
The SAA7134HL is able to capture TV signals over the PCI-bus in personal computers by
a single chip; see
Figure 4
.
The SAA7134HL incorporates two 9-bit video ADCs and the entire decoding circuitry of
any analog TV signal: NTSC, PAL and SECAM, including non-standard signals, such as
playback from a VCR. The adaptive multi-line comb filter provides superb picture quality,
component separation, sharpness and high bandwidth. The video stream can be cropped
and scaled to the needs of the application. Scaling down as well as zooming up is
supported in the horizontal and vertical direction, and an adaptive filter algorithm prevents
aliasing artifacts. With the acquisition unit of the scaler two different ‘tasks’ can be defined,
e.g. to capture video to the CPU for compression, and write video to the screen from the
same video source but with different resolution, color format and frame rate.
The SAA7134HL contains TV sound stereo decoding from Sound IF (SIF), for NICAM
standards and dual carrier FM systems, as used in European and Asian countries.
Baseband stereo audio sampling is also implemented, e.g. for capturing from a camcorder
or externally decoded BTSC. The audio sampling rate can be locked to the video frame
rate to ensure synchronization (lip-sync) between the video and audio data flow, e.g. for
storage, compression or time shift viewing applications.
The SAA7134HL incorporates analog audio pass-through and support for the analog
audio loop back cable to the sound card function.
The decoded video streams are fed to the PCI-bus, and are also applied to a peripheral
streaming interface, in ITU, VIP or VMI format. A possible application extension is
on-board hardware MPEG compression, or other feature processing. The compressed
data is fed back through the peripheral interface, in parallel or serial format, to be captured
by the system memory through the PCI-bus. The Transport Stream (TS) from a DTV/DVB
channel decoder can be captured through the peripheral interface in the same way.
O
O/D
JTAG test output
open-drain output (for PCI-bus); multiple clients can drive LOW at the
same time, wired-OR, floating back to 3-state over several clock cycles
input according to PCI-bus requirements
input and output according to PCI-bus requirements
output according to PCI-bus requirements
sustained 3-state (for PCI-bus); previous owner drives HIGH for one
clock cycle before leaving to 3-state
3-state I/O (for PCI-bus); bi-directional
ground for digital supply
supply voltage (3.3 V)
this pin or ‘signal’ is active LOW, i.e. the function is ‘true’ if the logic
level is LOW
PI
PIO
PO
S/T/S
T/S
VG
VS
Name ends with _N or #
Table 10:
Pin type
Characteristics of pin types and remarks
…continued
Description
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SAA7134HL/V1,518 | 功能描述:视频 IC PCI 9-BIT VID/STEREO RoHS:否 制造商:Fairchild Semiconductor 工作电源电压:5 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-28 封装:Reel |
| SAA7134HL/V1,557 | 功能描述:视频 IC PCI 9-BIT VID/STEREO RoHS:否 制造商:Fairchild Semiconductor 工作电源电压:5 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-28 封装:Reel |
| SAA7134HLBE | 功能描述:视频 IC PCI 9-BIT VID/STEREO DECODER RoHS:否 制造商:Fairchild Semiconductor 工作电源电压:5 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-28 封装:Reel |
| SAA7134HLBE-T | 功能描述:视频 IC PCI 9-BIT VID/STEREO DECODER RoHS:否 制造商:Fairchild Semiconductor 工作电源电压:5 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-28 封装:Reel |
| SAA7135 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Single-chip, analog TV video/stereo DECODER |
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