High-performance Video Signal Switchers
Ultra Wide Band
Triple Circuits Video Signal Switchers
BA7657F,BH7659FS
No.11066EAT03
●Description
The BA7657F, and BH7659FS are ICs that have been developed for use in PC monitors, HDTVs (high definition televisions),
and other high-resolution display devices. In addition to their wide-range switching circuits for RGB signals, HD signals,
and VD signals, the A7657F feature a separation (BUNRI) circuit for the synchronization signal that is superposed on the
2
G signal, while the BH7659FS features an on-chip switch for I C bus signals (SDA and SCL). These ICs can be used to
simplify the input block configuration in advanced display devices.
●Features
1) Operates on 5 V single power supply.
2) Built-in wide-range RGB signal switches.
3)
4)
5)
6)
(BA7657F :fc = 230 MHz)
(BH7659FS:fc = 250 MHz)
Built-in switching circuit for H
D
signal and V
D
signal.
Built-in separation (BUNRI) circuit for synchronization signal superposed on G signal. (BA7657F)
Built-in switch for I
2
C bus signals (SDA and SCL). (BH7659FS)
Built-in power saving function. (BH7659FS)
●Applications
PC monitors, Plasma displays, LCD monitors, and Other devices that use wide-range RGB signal switching.
●Line
up matrix
Parameter
Circuit current (mA)
Circuit current during low-power mode (mA)
RGB signal SW block frequency
characteristics (MHz)
Synchronization signal SW block circuit
configuration
Synchronization signal separation circuit
Package
●Absolute
Maximum Ratings(Ta=25℃)
Parameter
Supply voltage
Power dissipation
Operating temperature
Storage temperature
BA7657F
BH7659FS
Symbol
V
CC
Pd
Topr
Tstg
Ratings
8.0
550
800
-25½+75
-55½+125
Unit
V
mW
℃
℃
BA7657F
35
-
230
2 digital switching circuits
✔
SOP24
BH7659FS
25
14
250
4 CMOS analog switching circuits
-
SSOP-A32
※Deratings
is done at 5.5mW/℃ (BA7657F), 8mW/℃ (BA7659FS) above Ta=25℃.
●Operating
Range(Ta=25℃)
Parameter
Supply voltage
Symbol
V
CC
Ratings
Min.
4.5
Typ.
5.0
Max.
5.5
Unit
V
※This
product is not designed for protection against radioactive rays.
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© 2011 ROHM Co., Ltd. All rights reserved.
1/16
2011.04 - Rev.A
BA7657F,BH7659FS
●Electrical
characteristics
○BA7657F(Unless
otherwise noted, Ta=25℃, Vcc=5.0V)
Parameter
Circuit current
〈Analog
SW block〉
Maximum output level
Voltage gain
Input pin voltage gain differential
Inter block voltage gain differential
Input pin cross talk1
Interblock crosstalk1
〈Digital
SW block〉
“H”
“L”
“H”
“L”
level input voltage
level input voltage
level input current
level input current
V
IH
V
IL
I
IH
I
IL
T
R
T
F
T
RD
T
FD
V
OH
V
OL
I
OH
I
OL
V
SMin.
V
OH
V
OL
I
OL
T
R
T
F
T
RD
T
FD
V
IH
V
IL
I
IH
I
IL
1.8
-
80
-3
-
-
-
-
3.0
-
-400
5
-50
4.5
-
2
-
-
-
-
1.8
-
80
-3
-
-
100
-1
30
30
50
30
3.7
0.2
-
-
-
1.2
130
-
50
50
80
50
-
0.4
-
-
50
-
0.5
-
130
80
150
150
-
1.2
130
-
V
V
µA
µA
ns
ns
ns
ns
V
V
µA
mA
mV
P-P
V
V
mA
ns
ns
ns
ns
V
V
µA
µA
V
IN
=5.0V
V
IN
=0V
-
-
-
-
-
-
-
-
-
-
Vom
G
V
△G
Vl
G
VB
CTI1
CTB1
2.8
-1.0
-0.2
-0.2
-
-
-
-0.5
0
0
-50
-50
-
0
0.2
0.2
-40
-40
V
P-P
dB
dB
dB
dB
dB
f=1kHz
Symbol
ICC
Limits
Min.
20
Typ.
35
Max.
50
Unit
mA
Technical Note
Conditions
-
f=1MHz,V
IN
=1V
P-P
f=1MHz,V
IN
=1V
P-P
f=1MHz,V
IN
=1V
P-P
f=10MHz,V
IN
=1V
P-P
f=10MHz,V
IN
=1V
P-P
Rise time
Fall time
Rise delay time
Fall delay time
“H”
“L”
“H”
“L”
level output voltage
level output voltage
level output current
level output current
〈Synchronization
signal separation block〉
Minimum SYNC separation level
“H”
“L”
“L”
level output voltage
level output voltage
level output current
-
5.0
0.2
-
80
30
100
100
-
-
100
-1
-
-
-
-
-
-
-
-
Rise time
Fall time
Rise delay time
Fall delay time
〈Control
block〉
“H”
“L”
“H”
“L”
level input voltage
level input voltage
level input current
level input current
-
-
-
-
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© 2011 ROHM Co., Ltd. All rights reserved.
2/16
2011.04 - Rev.A
BA7657F,BH7659FS
Technical Note
○BH7659FS(Unless
otherwise noted, Ta=25℃, Vcc=5.0V)
Limits
Parameter
Symbol
Min.
Typ.
〈Entire
device〉
Circuit current
Circuit current during power save
〈R,G,B
video SW〉
Voltage gain
Interchannel relative gain
Interblock relative gain
Output dynamic range
〈C-MOS
analog SW〉
On-resistance
Interchannel
ON resistance differential
Interchannel cross talk
Transmission delay time
〈Control
block〉
“H” level voltage
“L” level voltage
V
H
V
L
3.5
-
-
-
R
ON
△R
ON
CT
t
D
-
-
-
-
200
20
-70
20
G
V
△G
VC
△G
VB
V
OM
-1.0
-0.5
-0.5
2.6
-0.5
0
0
-
IC
C
I
PSV
15
7
25
14
Max.
Unit
Conditions
35
22
mA
mA
PS=”H”
-
0
0.5
0.5
-
dB
dB
dB
V
P-P
f=10MHz
f=10MHz
f=10MHz
f=1kHz
400
40
-55
-
Ω
Ω
dB
ns
V
IN
=2.5V
V
IN
=2.5V
f=150kHz
RL=100Ω,CL=50pF
-
1.5
V
V
-
-
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© 2011 ROHM Co., Ltd. All rights reserved.
3/16
2011.04 - Rev.A
BA7657F,BH7659FS
●Guaranteed
design parameters
○BA7657F(Unless
otherwise noted, Ta=25℃, Vcc=5.0V)
Parameter
〈Analog
SW block〉
Input pin cross talk 2
Interblock cross talk 2
Frequency characteristic
Input pin frequency differential
Interblock frequency characteristic
differential
〈SYNC
separation block〉
SYNC separation frequency
SYNC separation pulse width 1
SYNC separation pulse width 2
SYNC separation pulse width 3
SYNC separation level 1
SYNC separation level 2
SYNC separation level 3
fH-R
pwH1
pwH2
pwH3
VS1
VS2
VS3
200
3.0
0.5
0.3
300
100
60
-
-
-
-
-
-
-
-
-
-
-
-
-
-
kHz
µs
µs
µs
µs
µs
µs
Input waveform
Input waveform
Input waveform
Input waveform
Input waveform
Input waveform
Input waveform
CTI2
CTB2
Gf
△Gfl
△GfB
-
-
-6
-1
-1
-30
-30
-3
0
0
-15
-15
-1
+1
+1
dB
dB
dB
dB
dB
Symbol
Limits
Min.
Typ.
Max.
Unit
Technical Note
Conditions
f=230kHz, V
IN
=1V
P-P
f=230MHz,V
IN
=1V
P-P
f=1MHz/230MHz, V
IN
=1V
P-P
f=1MHz/100MHz, V
IN
=1V
P-P
f=1MHz/100MHz, V
IN
=1V
P-P
※
1
※
2
※
2
※
2
※
3
※
3
※
3
fH=20kHz
fH=100kHz
fH=200kHz
fH=20kHz
fH=100kHz
fH=200kHz
〈Input
waveform〉
※1
VS and pwH are variable. VS and pwH are inter-related.
※2
VS = 130 mW and pwH are variable.
※3
pwH = 1 µs and VS are variable.
See the characteristics diagram.
Period of horizontal synchronization signal
DUTY 25%
(1H)
Vr=0.7V
Vs=130mV
pwH=1µs
○BH7659FS(Unless
otherwise noted, Ta=25℃, Vcc=5.0V)
Limits
Parameter
Symbol
Min.
Typ.
〈R/G/B
video SW〉
Frequency characteristics 1
Frequency characteristics 2
Interchannel relative frequency
characteristics
Interblock relative frequency
characteristics
Interchannel cross talk 1
Interchannel cross talk 2
Interblock cross talk 1
Interblock cross talk 2
f
1
f
2
△f
C
△f
B
CT
C1
CT
C2
CT
B1
CT
B2
-3.0
-6.0
-0.5
-0.5
-
-
-
-
0
-3
0
0
-50
-30
-50
-30
Max.
+1.0
-1.0
0.5
0.5
-35
-15
-35
-15
Unit
Conditions
dB
dB
dB
dB
dB
dB
dB
dB
f=50MHz
f=250MHz
f=50MHz
f=50MHz
f=50kHz
f=250MHz
f=50MHz
f=250MHz
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© 2011 ROHM Co., Ltd. All rights reserved.
4/16
2011.04 - Rev.A
BA7657F,BH7659FS
●Block
diagram
○BA7657F
Technical Note
Fig.1
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© 2011 ROHM Co., Ltd. All rights reserved.
5/16
2011.04 - Rev.A