参数资料
| 型号： | MAX4079CWG+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 14/15页 |
| 文件大小： | 0K |
| 描述： | IC A/V BACKEND 24-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 30 |
| 系列： | * |
| 类型： | * |
| 应用： | * |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 24-SOIC W |
| 包装： | 管件 |
MAX4079
Detailed Description
The MAX4079 filters and buffers video (NTSC/PAL/DVB)
and stereo audio signals from the MPEG decoder of a
cable/satellite receiver, VCR/DVD player, or a TV to an
external load. The MAX4079 has luma-chroma (Y-C)
and composite (CVBS) video inputs with one Y-C and
two CVBS outputs. All video inputs are AC-coupled with
internal DC biasing on the chroma input and active
clamps for the luma and composite.
The MAX4079 video reconstruction filters have a 6MHz
cutoff frequency and 50dB attenuation at 27MHz. The
filters are matched, with flat group delay for standard-
definition video. The video gain is fixed at +6dB to drive
a 75
Ω back-terminated load (150Ω) to unity gain. The
video outputs can be either DC- or AC-coupled and are
powered by a single +5V supply.
The MAX4079 audio amplifiers have differential inputs
for optimum performance, but can be used with single-
ended sources with external biasing. The audio chan-
nels have a fixed gain of +6dB and deliver 2.6VRMS
output with a differential input of ±1.85V. The audio
amplifiers operate from a +9V to +12V single supply
and feature an internal bias generator. An on-chip
mixer also provides a mono output, with +3dB gain,
derived from the left and right audio channels.
Video
The video section of the MAX4079 implements DC
restore/biasing, amplification, and reconstruction filter-
ing for the Y-C and CVBS input signals. All of the video
inputs are AC-coupled. DC restore is performed using
a sync tip clamp for both luma and composite video
channels. The chroma DC level input is biased at the
midlevel of the signal.
All video channels have a fixed gain of +6dB. The DC
level at the video outputs is controlled so that coupling
capacitors are not required.
All composite and luma video outputs are capable of
driving 2.4VP-P, and the chroma output is capable of
driving 1.8VP-P into 150
Ω resistive load to ground. Up
to 35pF of load capacitance can be tolerated at each
video output without stability or slew-rate issues.
Complete Audio/Video
Backend Solution
8
_______________________________________________________________________________________
Pin Description
PIN
NAME
FUNCTION
1
REXT
External Filter Resistor. Bypass with a 10k
Ω ±1% resistor and a 0.1F capacitor to GVID.
2, 24
VVID
Video Power-Supply Input
3
CVBSIN
Composite Video Input
4, 21
GVID
Video Ground
5
YIN
Luma Input
6
CBYPASS
Audio LDO Regulator Bypass Capacitor. Bypass with a1F capacitor to GAUD.
7
CIN
Chroma Input
8
AUDV
Audio Power-Supply Input
9
LINP
Left-Channel Audio Positive Input
10
LINN
Left-Channel Audio Negative Input
11
RINN
Right-Channel Audio Negative Input
12
RINP
Right-Channel Audio Positive Input
13
ROUT2
Right-Channel Audio Output 2
14
ROUT1
Right-Channel Audio Output 1
15
GAUD
Audio Ground
16
MONO
Mono Audio Output
17
LOUT2
Left-Channel Audio Output 2
18
LOUT1
Left-Channel Audio Output 1
19
COUT
Chroma Video Output
20
YOUT
Luma Video Output
22
CVBSOUT1
Composite Video Output 1
23
CVBSOUT2
Composite Video Output 2
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4079CWG+ | 功能描述:视频 IC Complete Audio/Video Backend Solution 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 |
| MAX4079CWG+T | 功能描述:视频 IC Complete Audio/Video Backend Solution 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 |
| MAX4079EVKIT | 功能描述:视频 IC 开发工具 Programmers, Development Systems RoHS:否 制造商:Texas Instruments 产品:Evaluation Boards 类型:YPbPr to RGBHV Converters 工具用于评估:LMH1251 工作电源电压:5 V |
| MAX407C/D | 功能描述:运算放大器 - 运放 1.2 Micro Amps Max Dual Single-Supply Op Amp RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
| MAX407C/D+ | 功能描述:运算放大器 - 运放 RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
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