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| 型号： | MAX4399CTK+TD |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/33页 |
| 文件大小： | 0K |
| 描述： | IC SW A/V SCART CON 68-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 开关 |
| 应用： | 接收器，机顶盒，电视 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 68-TQFN 裸露焊盘 |
| 供应商设备封装： | 68-TQFN-EP（10x10） |
| 包装： | 带卷 (TR) |
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MAX4399
Detailed Description
The MAX4399 audio/video switch matrix connects audio
and video signals between different ports. In the case of
a set-top box, the ports consist of the MPEG decoder
and three SCART connectors. For DVD+RW recorders
and some televisions, the ports consist of the main
board, front panel, tuner, and two SCART connectors.
The video section consists of input buffers, a crosspoint
switch, and output drivers that can be disabled. There
is also a mixer, which creates a composite video signal
from S-video. The video inputs can be set in either
clamp or bias mode. The red/chroma outputs have pull-
downs that connect the outputs to video ground as
described in the Video Inputs section.
The audio section features input buffers, a crosspoint
switch, and output drivers. The TV audio path has vol-
ume control from -56dB to +6dB in 2dB steps. The VCR
and AUX audio paths have volume control from -6dB to
+6dB in 6dB steps. The MAX4399 can be configured to
switch inputs during a zero crossing to reduce clicks.
The MAX4399 can also switch volume levels during a
zero crossing to reduce zipper noise. The audio out-
puts can operate in different modes. For instance, left
and right audio channels can be swapped (see the
Audio Outputs section).
The MAX4399 has two fast-switching inputs and one
fast-switching output. Fast switching is used for creat-
ing on-screen displays by switching between the CVBS
and RGB signals. Under I2C-compatible control, the
fast-switching output can follow either of the fast-
switching inputs or be set high or low.
The MAX4399 features three slow-switching input/out-
puts to support slow switching, which sets the screen
aspect ratio or video source of the display device. The
slow switching relies on tri-level logic in which the levels
are 0V, 6V, and 12V. The status of the slow-switching
input is continuously read and stored in register 0Eh. If
INTERRUPT_OUT is enabled, then INTERRUPT_OUT
changes to a high-impedance state if any of the slow-
switching inputs change logic levels. The slow-switching
outputs can be set to a logic level or high impedance by
writing to registers 07h, 09h, or 0Bh.
The MAX4399 can be configured through an I2C-com-
patible interface. DEV_ADDR sets the I2C-compatible
address.
SCART Video Switching
The MAX4399 triple SCART audio/video switch
includes multiplexed video amplifiers and a Y-C mixer-
driver with a trap filter to drive an RF modulator. The
MAX4399 switches video from an MPEG decoder out-
put and TV, VCR, and AUX SCART connectors.
Audio/Video Switch for Three SCART
Connectors
10
______________________________________________________________________________________
Pin Description (continued)
PIN
NAME
FUNCTION
53
TV_Y/CVBS_IN
TV SCART Luma/Composite Video Input. Internally biased at 1.22V.
54
AUX_R/C_IN
AUX SCART Red/Chroma Video Input. Internally biased at 1.22V for red, or 1.8V for chroma.
55
AUX_Y/CVBS_IN
AUX SCART Luma/Composite Video. Internally biased at 1.22V.
56
VCR_Y/CVBS_IN
VCR SCART Luma/Composite Video Input. Internally biased at 1.22V.
57
VCR_FS_IN
VCR SCART Fast-Switching Input
58
VCR_R/C_IN
VCR SCART Red/Chroma Video Input. Internally biased at 1.22V for red, or 1.8V for chroma.
59
VCR_G_IN
VCR SCART Green Video Input. Internally biased at 1.22V.
60
VCR_B_IN
VCR SCART Blue Video Input. Internally biased at 1.22V.
62
ENC_Y/CVBS_IN
Digital Encoder Luma/Composite Video Input. Internally biased at 1.22V.
63
ENC_R/C_IN
Digital Encoder Red/Chroma Video Input. Internally biased at 1.22V for red, or 1.8V for
chroma.
64
ENC_G_IN
Digital Encoder Green Video Input. Internally biased at 1.22V.
65
ENC_B_IN
Digital Encoder Blue Video Input. Internally biased at 1.22V.
66
ENC_Y_IN
Digital Encoder Luma Video Input. Internally biased at 1.22V.
67
ENC_C_IN
Digital Encoder Chroma Video Input. Internally biased at 1.8V.
68
ENC_FS_IN
Digital Encoder Fast-Switching Input
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相关代理商/技术参数 |
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|---|---|
| MAX4399EVKIT | 功能描述:视频 IC 开发工具 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 |
| MAX439CPA | 制造商:Maxim Integrated Products 功能描述: |
| MAX439CSA-W | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX439EPA | 制造商:Maxim Integrated Products 功能描述:CONTACT FACTORY - Rail/Tube |
| MAX44000EDT+T | 功能描述:环境光传感器 Digital Ambient Proximity Sensor RoHS:否 制造商:Vishay Semiconductors 工作电源电压: 峰值波长:570 nm 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:T-1 封装:Bulk |
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