參數(shù)資料
型號： MAX4397SACTM+
廠商： Maxim Integrated Products
文件頁數(shù)： 8/30頁
文件大?。?/td> 0K
描述： IC SW A/V SCART CON 48-TQFN
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 43
類型： 開關(guān)
應(yīng)用： DVD，機(jī)頂盒，電視
安裝類型： 表面貼裝
封裝/外殼： 48-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 48-TQFN-EP（7x7）
包裝： 管件
MAX4397DA/SA
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 MAX4397DA/SA use a simple 2-wire serial inter-
face 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 MAX4397DA/SA are slave
devices 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 MAX4397DA/SA. 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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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX4397SACTM+ 功能描述:視頻開關(guān) IC Audio/Video Switch for Dual SCART Con RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關(guān)閉時間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel
MAX4397SACTM+T 功能描述:視頻開關(guān) IC Audio/Video Switch for Dual SCART Con RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關(guān)閉時間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel
MAX4397SCTM 功能描述:視頻開關(guān) IC RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關(guān)閉時間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel
MAX4397SCTM+ 功能描述:視頻開關(guān) IC Audio/Video Switch for Dual SCART Con RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關(guān)閉時間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel
MAX4397SCTM+T 功能描述:視頻開關(guān) IC Audio/Video Switch for Dual SCART Con RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關(guān)閉時間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel
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