BH7649KS2 Datasheet, PDF (1/13 Pages) Rohm – Video･Audio Signal Switchers for Car Navigation Car DVD Player

High-performance Video Signal Switchers
Videoï½¥Audio Signal Switchers
for Car Navigation Car DVD Player
BH7649KS2
No.11066EAT05
●Description
BH7649KS2 is built-in video switch, audio switch and isolation amplifier in a single chip.
●Features
1) Video inputs selector: 7-inputs composite, Video outputs: 2-outputs 75Ω video driver, 2-outputs AMP
2) Built in Video gain switch (-6dB / -3dB / 0dB / 3dB)
3) Built in Video LPF switch (6.75MHz / Through)
4) Built in sag compensation circuit
5) Enables two load drivers
6) Video driver: Able to be used without load
7) Video driver : Able to be used without output coupling capacitor(one load)
8) Audio inputs selector: 5-inputs(Lch, Rch), Audio outputs : 2-outputs(Lch, Rch)
9) Built in Audio gain switch (0dB / -6dB)
10) Built in Audio LPF switch (24kHz / Through)
11) Built in MUTE function
12) Audio/Video all inputs: Built in isolator function
13) Selectable isolator function for different Audio/Video input channels
14) Serial control with I²C-BUS (I²C-BUS is compatible with fast mode of Version2.0)
15) Optional Slave address modifications (90H / 92H)
●Applications
Car navigation, Car DVD
●Absolute maximum ratings (Ta=+25℃)
Parameter
Symbol
Ratings
Supply voltage VVcc
VVccmax
10
Supply voltage AVcc
AVccmax
10
Power dissipation
Pd
Input voltage range I²C-BUS input
(SCL, SDA)
Input voltage range Video selector, LOGIC
(VIN1, VRET1, VIN2, VRET2, VIN3, VRET3, VIN4, VRET4,
VIN5, VRET5, VIN6, VRET6, VIN7, VRET7, ADR)
Input voltage range Video driver
(VDIN1, VDIN2)
Input voltage range Audio seletor
(LIN1, ARET1, RIN1, LIN2, ARET2, RIN2, LIN3, ARET3, RIN3,
LIN4, ARET4, RIN4, LIN5, ARET5, RIN5)
Storage temperature range
V_I2CIN
V_IN1
V_DIN1
V_AIN1
Tstg
*1 When mounting on a 70mm×70mm×1.6mm 4-layer glass epoxy board
Reduced by 19mW/℃ at Ta = +25℃ or higher
1900 *1
-0.2 ～ 7.0
-0.2 ～ 5.1
-0.2 ～ VVcc+0.2
-0.2 ～ AVcc+0.2
-55～+125
Unit
V
V
mW
V
V
V
V
℃
●Operating conditions
Parameter
Symbol
Ratings
Unit
Supply voltage VVcc
VVcc
+7.5 ～ +9.5
V
Supply voltage AVcc
AVcc
+7.5 ～ +9.5
V
Operating temperature range
Topr
-40 ～ +85
℃
* This product is not designed for protection against radioactive rays.
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2011.04 - Rev.A