High-performance Video Signal Switchers
Single-circuit
Video Switchers
BA7654F,BA7653AF,BA7653AFV,BA7652AF
No.11066EAT04
●Description
The BA7654F, BA7653A F/FV or BA7652AF is a video signal (display signal) switch containing one 2-input or 3-input circuit.
Each of the input pin formats is “sync-tip clamp input” that matches the synchronous tips of video signals (display signals) to
the same potential. The inputs have an high input impedance configuration, in which they can utilize a small clamp capacitor
(0.01 µF (FZ) ceramic capacitor is recommended).
●Features
1) Low value clamp capacitance can be used (Min. 3000 pF Recommended 0.01µF (FZ) ceramic capacitor)
2) Low voltage operation is possible (Operating range 4.0~7.0V)
3) Superimposed can be applied since switching speed of SW is fast and there is little switching noise (Typ. 70ns)
4) Low power consumption (Typ. 25mW when Vcc=5V)
5) Large dynamic range (Typ. 3.1VP-P when Vcc=5V)
6) Good frequency characteristics (Typ. 10 MHz 0 dB)
7) Low interchannel crosstalk (Typ. –70 dB)
8) Voltage can be applied to the CTL pin without a VCC voltage.
9) Built-in mute function (BA7652AF)
●Applications
VCR, TV, and other applications that use display signals.
●Product lineup
Part No.
Input type
Mute
BA7654F
2 in 1 Circuit
-
BA7653AF, BA7653AFV
3 in 1 Circuit
-
BA7652AF
3 in 1 Circuit
○
Supply voltage(V)
4.0 ~ 7.0
●Absolute maximum ratings(Ta=25℃)
Parameter
Symbol
Supply voltage
Ratings
BA7654F
BA7653AF
VCC
BA7653AFV
BA7652AF
9
Unit
V
Pd
500*1
500*1
350*2
500*1
mW
Operating temperature
Topr
-25~+75
-30~+80
-30~+80
-30~+80
℃
Storage temperature
Tstg
Power dissipation
-55~+125
℃
*1 Reduce by 5.0mW/℃ over 25℃, when mounted on a 50mm×50mm PCB board.(BA7654F, BA7653AF, BA7652AF)
*2 Reduce by 3.5mW/℃ over 25℃, when mounted on a 50mm×50mm PCB board.(BA7653AFV)
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1/9
2011.04 - Rev.A
Technical Note
BA7654F,BA7653AF,BA7653AFV,BA7652AF
●Operating range(Ta=25℃)
Parameter
Symbol
Ratings
Unit
VCC
4.0 ~ 7.0
V
Supply voltage
Note: This IC is not designed to be radiation-resistant.
●Electrical characteristics(Unless otherwise noted,
Parameter
Symbol
Ta=25℃, Vcc=5.0V)
Limits
Min.
Typ.
Max.
Unit
Conditions
Circuit current
ICC
2.7
5.0
8.2
mA
Maximum output level
Vom
2.6
3.1
-
VP-P
f=1kHz, THD=1.0%
Voltage gain
GV
-0.5
0
+0.5
dB
f=1MHz, VIN=1.0VP-P
Inter channel crosstalk
Cta
-
-70
-
dB
f=4.43MHz, VIN=1.0VP-P
Frequency characteristics
Cf
-3.0
0
+1.0
dB
f=10MHz/1MHz, VIN=1.0VP-P
VTH L
-
-
1.0
V
VTH =(Vcc-0.75)×0.44
VTH H
2.5
-
-
CTL switching voltage
●Guaranteed design parameters (Unless otherwise noted, Ta=25℃, Vcc=5.0V)
Limits
Parameter
Symbol
Unit
Min.
Typ.
Max.
Conditions
Differential phase
DG
-
0
0.5
%
VIN=1.0VP-P, standard staircase signal
Differential gain
DP
-
0.5
1.0
deg
VIN=1.0VP-P, standard staircase signal
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2/9
2011.04 - Rev.A
Technical Note
BA7654F,BA7653AF,BA7653AFV,BA7652AF
●Block diagram
IN1
1
8
GND
IN1
1
8
GND
CTL
2
7
OUT
CTLa
2
7
OUT
IN2
3
6
VCC
IN2
3
6
VCC
5
IN3
Logic
GND
Logic
4
5
Open.
CTLb
Fig.1 BA7654F
4
Fig.2 BA7653AF, BA7653AFV
Fig.3 BA7652AF
●Control Pin Settings
BA7654F
BA7653AF, BA7653AFV
BA7652AF
CTL
OUT
CTLa
CTLb
OUT
CTLa
CTLb
OUT
L
IN1
L
L
IN1
L
L
IN1
H
IN2
H
L
IN2
H
L
IN2
L
H
IN3
L
H
IN3
H
H
IN3
H
H
MUTE
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© 2011 ROHM Co., Ltd. All rights reserved.
3/9
2011.04 - Rev.A
Technical Note
BA7654F,BA7653AF,BA7653AFV,BA7652AF
●Pin descriptions 1/2 (BA7654F)
BA7654F
DC voltage
(Vcc=5V)
Input/output
impedance
1.65V
10MΩ or more
CTL
-
-
GND
0V
-
5
N.C.
open
open
6
Vcc
0.5V
-
7
OUT
0.95V
26Ω
Pin No.
Pin name
1
IN1
(3)
(IN2)
2
4
(8)
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4/9
Equivalent circuit
IN1
(IN2)
CTL
-
2011.04 - Rev.A
Technical Note
BA7654F,BA7653AF,BA7653AFV,BA7652AF
●Pin descriptions 2/2 (BA7653AF, BA7653AFV, BA7652AF)
BA7653AF, BA7653AFV, BA7652AF
Pin No.
Pin name
DC voltage
(Vcc=5V)
1
(3)
(5)
IN1
(IN2)
(IN3)
1.65V
10MΩ or more
2
CTLa
-
-
4
CTLb
-
-
6
Vcc
5.0V
-
7
OUT
0.95V
26Ω
8
GND
0V
-
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© 2011 ROHM Co., Ltd. All rights reserved.
Input/output
impedance
5/9
Equivalent circuit
IN1
(IN2)
(IN3)
2011.04 - Rev.A
Technical Note
BA7654F,BA7653AF,BA7653AFV,BA7652AF
●Application circuit 1/2 (BA7654F)
Vcc
BA7654F
0.01µF
C.Video IN
1
IN 1
Vcc
6
47µF
0.1µF
0.01µF
C.Video
IN
Logic
3
IN 2
5
Open
2
CTL
4
GND
OUT
7
GND
8
C.Video OUT
Fig.4
(When superimpossion is used)
0.01µF
47µF
0.1µF
DC1.7V
or more
Fig.5
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6/9
2011.04 - Rev.A
Technical Note
BA7654F,BA7653AF,BA7653AFV,BA7652AF
●Application circuit 2/2 (BA7653AF, BA7653AFV, BA7652AF)
BA7653AF, BA7653AFV, BA7652AF
Fig.6
(When superimpossion is used)
BA7653AF, BA7653AFV, BA7652AF
DC1.7V
or more
DC1.7V or
more
Fig.7
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7/9
2011.04 - Rev.A
Technical Note
BA7654F,BA7653AF,BA7653AFV,BA7652AF
●Notes for use
1. Numbers and data in entries are representative design values and are not guaranteed values of the items.
2.
Although ROHM is confident that the example application circuit reflects the best possible recommendations, be sure to
verify circuit characteristics for your particular application. Modification of constants for other externally connected
circuits may cause variations in both static and transient characteristics for external components as well as this Rohm IC.
Allow for sufficient margins when determining circuit constants.
3.
Absolute maximum ratings
Use of the IC in excess of absolute maximum ratings, such as the applied voltage or operating temperature range (Topr),
may result in IC damage. Assumptions should not be made regarding the state of the IC (short mode or open mode)
when such damage is suffered. A physical safety measure, such as a fuse, should be implemented when using the IC at
times where the absolute maximum ratings may be exceeded.
4.
GND potential
Ensure a minimum GND pin potential in all operating conditions. Make sure that no pins are at a voltage below the GND
at any time, regardless of whether it is a transient signal or not.
5.
Thermal design
Perform thermal design, in which there are adequate margins, by taking into account the permissible dissipation (Pd) in
actual states of use.
6.
Short circuit between terminals and erroneous mounting
Pay attention to the assembly direction of the ICs. Wrong mounting direction or shorts between terminals, GND, or other
components on the circuits, can damage the IC.
7.
Operation in strong electromagnetic field
Using the ICs in a strong electromagnetic field can cause operation malfunction.
8.
For clamp operation stability
Set the output impedance of the stage before input pin no more than 1 kΩ.
9.
An input clamp capacitor will cause delay in operation at power on. Therefore, it is recommended to use a clamp
capacitor no larger than 0.1 µF (0.01µF (FZ) ceramic capacitor is recommended).
10. TheBA7653AF, BA7653AFV and BA7652AF are 3-input, 1-output switch. If it is used as a 2-input, 1-output switch, by
leaving one input Open and unused, the Open input pin will oscillate. However, this does not affect other pins and is
not particularly a problem for operation. If necessary, connect the input pin to GND via a capacitor or connect the input
pin directly to VCC to stop oscillation.
11. CTL pin is in indeterminate status when left Open. Set it at “H” or “L” level.
12. For superimposed, a 1.7v DC voltage should be applied directly to an input pin.
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8/9
2011.04 - Rev.A
Technical Note
BA7654F,BA7653AF,BA7653AFV,BA7652AF
●Ordering part number
B
A
7
Part No.
6
5
3
A
F
Part No.
7654
7653A
7652A
V
Package
F : SOP8
FV:SSOP-B8
-
E
2
Packaging and forming specification
E2: Embossed tape and reel
SOP8
5.0±0.2
(MAX 5.35 include BURR)
6
+6°
4° −4°
5
6.2±0.3
4.4±0.2
0.3MIN
7
1 2
3
0.9±0.15
8
Tape
Embossed carrier tape
Quantity
2500pcs
Direction
of feed
E2
The direction is the 1pin of product is at the upper left when you hold
( reel on the left hand and you pull out the tape on the right hand
)
4
0.595
1.5±0.1
+0.1
0.17 -0.05
S
S
0.11
0.1
1.27
1pin
0.42±0.1
Reel
(Unit : mm)
Direction of feed
∗ Order quantity needs to be multiple of the minimum quantity.
SSOP-B8
3.0±0.2
(MAX 3.35 include BURR)
8
7
6
5
Tape
Embossed carrier tape
Quantity
2500pcs
E2
The direction is the 1pin of product is at the upper left when you hold
( reel on the left hand and you pull out the tape on the right hand
)
0.3MIN
6.4 ± 0.3
4.4 ± 0.2
Direction
of feed
2
3
4
0.1
1.15±0.1
1
0.15±0.1
S
(0.52)
0.65
0.1 S
+0.06
0.22 −0.04
0.08
1pin
M
Reel
(Unit : mm)
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9/9
Direction of feed
∗ Order quantity needs to be multiple of the minimum quantity.
2011.04 - Rev.A
Notice
Notes
No copying or reproduction of this document, in part or in whole, is permitted without the
consent of ROHM Co.,Ltd.
The content specified herein is subject to change for improvement without notice.
The content specified herein is for the purpose of introducing ROHM's products (hereinafter
"Products"). If you wish to use any such Product, please be sure to refer to the specifications,
which can be obtained from ROHM upon request.
Examples of application circuits, circuit constants and any other information contained herein
illustrate the standard usage and operations of the Products. The peripheral conditions must
be taken into account when designing circuits for mass production.
Great care was taken in ensuring the accuracy of the information specified in this document.
However, should you incur any damage arising from any inaccuracy or misprint of such
information, ROHM shall bear no responsibility for such damage.
The technical information specified herein is intended only to show the typical functions of and
examples of application circuits for the Products. ROHM does not grant you, explicitly or
implicitly, any license to use or exercise intellectual property or other rights held by ROHM and
other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the
use of such technical information.
The Products specified in this document are intended to be used with general-use electronic
equipment or devices (such as audio visual equipment, office-automation equipment, communication devices, electronic appliances and amusement devices).
The Products specified in this document are not designed to be radiation tolerant.
While ROHM always makes efforts to enhance the quality and reliability of its Products, a
Product may fail or malfunction for a variety of reasons.
Please be sure to implement in your equipment using the Products safety measures to guard
against the possibility of physical injury, fire or any other damage caused in the event of the
failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM
shall bear no responsibility whatsoever for your use of any Product outside of the prescribed
scope or not in accordance with the instruction manual.
The Products are not designed or manufactured to be used with any equipment, device or
system which requires an extremely high level of reliability the failure or malfunction of which
may result in a direct threat to human life or create a risk of human injury (such as a medical
instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuelcontroller or other safety device). ROHM shall bear no responsibility in any way for use of any
of the Products for the above special purposes. If a Product is intended to be used for any
such special purpose, please contact a ROHM sales representative before purchasing.
If you intend to export or ship overseas any Product or technology specified herein that may
be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to
obtain a license or permit under the Law.
Thank you for your accessing to ROHM product informations.
More detail product informations and catalogs are available, please contact us.
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R1120A