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参数资料
| 型号： | MAX4397SCTM+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/30页 |
| 文件大小： | 0K |
| 描述： | IC SW A/V SCART CON 48-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： | DVD，机顶盒，电视 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-WFQFN 裸露焊盘 |
| 供应商设备封装： | 48-TQFN-EP（7x7） |
| 包装： | 带卷 (TR) |
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MAX4397
Volume Control
The TV channel volume control ranges from -56dB to
+6dB in 2dB steps. The VCR volume control settings
are programmable for -6dB, 0dB, and +6dB. These
gain levels are referenced to the application inputs,
where some dividers are present. With the ZCD bit set,
the TV volume control switches only at zero-crossings,
thus minimizing click noise. The TV outputs can bypass
the volume control. Likewise, the monaural output sig-
nal can be processed by the TV volume control or it
can bypass the volume control.
Digital Section
Serial Interface
The MAX4397 uses a simple 2-wire serial interface
requiring only two standard microprocessor port I/O
lines. The fast-mode I2C-compatible serial interface
allows communication at data rates up to 400kbps or
400kHz. Figure 6 shows the timing diagram of the sig-
nals on the 2-wire interface.
The two bus lines (SDA and SCL) must be at logic-high
when the bus is not in use. The MAX4397 is a slave
device and must be controlled by a master device.
Pullup resistors from the bus lines to the supply are
required when push-pull circuitry is not driving the
lines.
The logic level on the SDA line can only change when
the SCL line is low. The start and stop conditions occur
when SDA toggles low/high while the SCL line is high
(see Figure 6). Data on SDA must be stable for the
duration of the setup time (tSU,DAT) before SCL goes
high. Data on SDA is sampled when SCL toggles high
with data on SDA stable for the duration of the hold time
(tHD,DAT). Note that data is transmitted in an 8-bit byte.
A total of nine clock cycles are required to transfer a
byte to the MAX4397. The device acknowledges the
successful receipt of the byte by pulling the SDA line
low during the 9th clock cycle.
Audio/Video Switch for Dual SCART Connectors
16
______________________________________________________________________________________
SCL
SDA
tLOW
tF
tR
tHD, STA
tHD, DAT
tHD, STA
tSU, DAT
tSU, STA
tBUF
tSU, STA
STOP CONDITION
REPEATED START CONDITION
START CONDITION
Figure 6. SDA and SCL Signal Timing Diagram
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4399CTK | 功能描述:视频开关 IC RoHS:否 制造商:Texas Instruments 开关数量:4 开启电阻（最大值）:12 Ohms 传播延迟时间: 开启时间（最大值）: 关闭时间（最大值）: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:WQFN-42 封装:Reel |
| MAX4399CTK+ | 功能描述:视频开关 IC Audio/Video Switch for 3 SCART Con RoHS:否 制造商:Texas Instruments 开关数量:4 开启电阻（最大值）:12 Ohms 传播延迟时间: 开启时间（最大值）: 关闭时间（最大值）: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:WQFN-42 封装:Reel |
| MAX4399CTK+D | 功能描述:视频开关 IC Audio/Video Switch for 3 SCART Con RoHS:否 制造商:Texas Instruments 开关数量:4 开启电阻（最大值）:12 Ohms 传播延迟时间: 开启时间（最大值）: 关闭时间（最大值）: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:WQFN-42 封装:Reel |
| MAX4399CTK+T | 功能描述:视频开关 IC Audio/Video Switch for 3 SCART Con RoHS:否 制造商:Texas Instruments 开关数量:4 开启电阻（最大值）:12 Ohms 传播延迟时间: 开启时间（最大值）: 关闭时间（最大值）: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:WQFN-42 封装:Reel |
| MAX4399CTK+TD | 功能描述:视频开关 IC Audio/Video Switch for 3 SCART Con RoHS:否 制造商:Texas Instruments 开关数量:4 开启电阻（最大值）:12 Ohms 传播延迟时间: 开启时间（最大值）: 关闭时间（最大值）: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:WQFN-42 封装:Reel |
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