参数资料
型号: MAX4887ETE+
厂商: Maxim Integrated Products
文件页数: 11/12页
文件大小: 0K
描述: IC SWITCH VIDEO TRPL 16TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 100
功能: 视频开关
电路: 3 x 1:2
导通状态电阻: 6.5 欧姆
电压电源: 单电源
电压 - 电源,单路/双路(±): 3.3V,5V
电流 - 电源: 1µA
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-WFQFN 裸露焊盘
供应商设备封装: 16-TQFN-EP(3x3)
包装: 托盘
MAX4887
Charge Pump
A low-noise charge pump with internal capacitors pro-
vides a doubled voltage for driving the RGB analog
switches when operating the MAX4887 at low voltages
(V+ < 5V). The charge pump adds less than 163VP-P
of noise to the switches. When operating with V+ = 5V,
the charge pump can be disabled to further reduce
noise; however, the analog switch’s performance is
slightly degraded resulting in higher RON and insertion
loss. Drive QP high to disable the charge pump. Drive
QP low for normal operation.
When operating the MAX4887 at 3.3V, connect QP
to GND.
Logic Inputs (
EN, SEL)
The MAX4887 has two logic inputs that control the
switch configuration and on/off function. Use SEL to
switch (RGB)0 to (RGB)1 or (RGB)2. Use EN to connect
the switch inputs to the outputs. Drive EN low to enable
the RGB switches inputs/outputs. Drive EN high to
place all inputs/outputs in a high-impedance state.
Table 1 illustrates the MAX4887 truth table.
Triple Video Switch
8
_______________________________________________________________________________________
tr < 5ns
tf < 5ns
50%
0V
LOGIC
INPUT
RL
R_, G_, B_
GND
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
VOUT = VIN
(
RL
)
RL + RON
SWITCH
INPUT
SEL
V+
tOFF
0V
RO, GO, BO
SWITCH
OUTPUT
0.9 x V0UT
tON
VOUT
SWITCH
OUTPUT
LOGIC
INPUT
LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES
THAT HAVE THE OPPOSITE LOGIC SENSE.
V+
CL
V+
VOUT
VIN
MAX4887
Figure 2. Switching Time
VGEN
GND
CL
VOUT
V+
VOUT
Q = (
VOUT)(CL)
SWITCH
INPUT
ON
0V
V+
OFF
SEL
V+
RGEN
SEL
MAX4887
SWITCH
OUTPUT
LOGIC INPUT (0 TO V+)
RO, GO, BO
R_, G_, B_
Figure 3. Charge Injection
EN
SEL
FUNCTION
00
(RGB)0 to (RGB)1
01
(RGB)0 to (RGB)2
1X
R_, B_, and G_ High Impedance
Table 1. Switch Truth Table
Timing Diagrams/Test Circuits
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相关代理商/技术参数
参数描述
MAX4887ETE+ 功能描述:视频开关 IC Triple Video 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
MAX4887ETE+T 功能描述:视频开关 IC Triple Video 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
MAX4887ETE-T 功能描述:多路器开关 IC RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻(最大值):7 Ohms 开启时间(最大值): 关闭时间(最大值): 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16
MAX4888AETI 功能描述:模拟开关 IC RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻(最大值):0.1 Ohms 切换电压(最大): 开启时间(最大值): 关闭时间(最大值): 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16
MAX4888AETI/V+T 制造商:Maxim Integrated Products 功能描述:5.0GBPS PCI EXPRESS PASSIVE SWITCHES - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC SWITCH QUAD SPDT 28TQFN 制造商:Maxim Integrated Products 功能描述:5Gbps PCI Express Passive Switches