参数资料
型号: MAX4357ECD+TD
厂商: Maxim Integrated Products
文件页数: 22/42页
文件大小: 0K
描述: IC VIDEO CROSSPOINT SWIT 128TQFP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 250
功能: 视频交叉点开关
电路: 1 x 32:16
电压电源: 单/双电源
电压 - 电源,单路/双路(±): 5V,± 3 V ~ 5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 128-LQFP
供应商设备封装: 128-LQFP(14x20)
包装: 带卷 (TR)
MAX4357
32 x 16 Nonblocking Video Crosspoint Switch
with I/O Buffers
______________________________________________________________________________________
29
Detailed Description
The MAX4357 is a highly integrated 32 16 nonblock-
ing video crosspoint switch matrix. All inputs and out-
puts are buffered, with all outputs able to drive
standard 75Ω reverse-terminated video loads.
A 3-wire interface programs the switch matrix and ini-
tializes with a single update signal. The unique serial
interface operates in one of two modes, Complete
Matrix Mode (Mode 1) or Individual Output Address
Mode (Mode 0).
The signal path of the MAX4357 is from the buffered
inputs (IN0–IN31), through the switching matrix,
buffered by the output amplifiers, and presented at the
outputs (OUT0–OUT15) (
Functional Diagram). The
other functional blocks are the serial interface and con-
trol logic. Each of the functional blocks is described in
detail in the sections following.
Analog Outputs
The MAX4357 outputs are high-speed amplifiers capa-
ble of driving 150Ω (75Ω back-terminated) loads. The
gain, AV = +1V/V or +2V/V, is selectable through pro-
gramming bit 5 of the serial control word. Amplifier com-
pensation is automatically optimized to maximize the
bandwidth for each gain selection. Each output can be
individually enabled and disabled via bit 6 of the serial
control word. When disabled, the output is high imped-
ance presenting typically 4kΩ load, and 3pF output
capacitance, allowing multiple outputs to be connected
together for building large arrays. On power-up (or asyn-
chronous RESET) all outputs are initialized in the dis-
abled state to avoid output conflicts in large array
configurations. The programming and operation of the
MAX4357 is output referred. Outputs are configured indi-
vidually to connect to any one of the 32 analog inputs,
programmed to the desired gain (AV = +1V/V or +2V/V),
and enabled or disabled in a high-impedance state.
MAX4357
32 x 16
SWITCH MATRIX
POWER-ON
RESET
SERIAL
INTERFACE
THERMAL
SHUTDOWN
DECODE LOGIC
DISABLE ALL OUTPUTS
LATCHES
512 16
16
MATRIX REGISTER
112 BITS
UPDATE REGISTER
16 BITS
ENABLE/DISABLE
AV*
*AV = +1V/V OR +2V/V
A0-A3 MODE
IN0
IN1
IN2
IN31
DIN
SCLK
UPDATE
CE
RESET
OUT0
OUT1
OUT2
OUT15
VCC
VEE
DGND
VDD
DOUT
AOUT
AGND
Functional Diagram
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相关代理商/技术参数
参数描述
MAX4358ECE 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
MAX4358ECE+ 功能描述:视频开关 IC 32x16 Nonblocking Video Crx Switch 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
MAX4358ECE+D 功能描述:视频开关 IC 32x16 Nonblocking Video Crx Switch 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
MAX4358ECE+T 功能描述:视频开关 IC 32x16 Nonblocking Video Crx Switch 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
MAX4358ECE+TD 功能描述:视频开关 IC 32x16 Nonblocking Video Crx Switch 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