參數(shù)資料
型號(hào): MAX4887ETE+
廠商: Maxim Integrated Products
文件頁數(shù): 11/12頁
文件大?。?/td> 0K
描述: IC SWITCH VIDEO TRPL 16TQFN
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 100
功能: 視頻開關(guān)
電路: 3 x 1:2
導(dǎo)通狀態(tài)電阻: 6.5 歐姆
電壓電源: 單電源
電壓 - 電源,單路/雙路(±): 3.3V,5V
電流 - 電源: 1µA
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 16-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 16-TQFN-EP(3x3)
包裝: 托盤
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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MAX4887ETE+ 功能描述:視頻開關(guān) IC Triple Video Switch 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(shí)間: 開啟時(shí)間(最大值): 關(guān)閉時(shí)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
MAX4887ETE+T 功能描述:視頻開關(guān) IC Triple Video Switch 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(shí)間: 開啟時(shí)間(最大值): 關(guān)閉時(shí)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
MAX4887ETE-T 功能描述:多路器開關(guān) IC RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻(最大值):7 Ohms 開啟時(shí)間(最大值): 關(guān)閉時(shí)間(最大值): 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
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