Multimedia ICs
Video signal switcher
BA7612N / BA7612F
The BA7612N and BA7613F are three-channel analog multiplexers with built-in mute, 6dB amplifier and 75Ω driver.
The ICs designed for use in video cassette recorders, and feature a large dynamic range and wide operating frequency range. All inputs are terminated with 20kΩ (Typ.) input impedance.
Applications
•Video
cassette recorders and televisions
•1)Features
3-input / 1-output switches.
2)
3)
4)
5)
6) Low power dissipation (103mW Typ.).
7) Excellent frequency characteristics
(10MHz, 0dB Typ.).
8) Wide dynamic range (3.5VP-P Typ.).
9) Low interchannel crosstalk
( – 65dB Typ., f = 4.43MHz).
Built-in 6dB amplifier and 75Ω driver.
Built-in mute.
Large input impedance (20kΩ Typ.).
Wide operating supply voltage range
(4.5V ~ 13.0V BA7612N)
(4.5V ~ 9.5V BA7613F).
•Block diagram
BA7612F
BA7612N
IN1
1
CTLA 2
CTLB 3
LOGIC
6
GND
IN3
7
8
VOUT
5
VCC
4
IN2
CTLA
3
CTLB
2
IN1
IN2
1
8 VOUT
MUTE
6dB Amp 75Ω Driver
MUTE
4
6dB
LOGIC
75Ω
7 VCC
6 IN3
5 GND
•Truth table
CTL A
CTL B
OUT
L (OPEN)
L (OPEN)
IN1
L (OPEN)
H
IN2
H
L (OPEN)
IN3
H
H
MUTE
1
Multimedia ICs
BA7612N / BA7612F
•Absolute maximum ratings (Ta = 25°C)
Parameter
Symbol
Limits
Power supply voltage
VCC
∗113.5 / ∗210.0
Unit
V
Power dissipation
Pd
∗1900∗3 / ∗2550∗4
mW
Operating temperature
Topr
– 25 ~ + 75
°C
Storage temperature
Tstg
– 55 ~ + 125
°C
∗1 BA7612N
∗2 BA7612F
∗3 Reduced by 9mW for each increase in Ta of 1°C over 25°C.
∗4 Reduced by 5.5mW for each increase in Ta of 1°C over 25°C.
•Electrical characteristics (unless otherwise noted, Ta = 25°C and V
Parameter
Symbol
Min.
Operating voltage range
VCC
Supply current
ICC
Maximum output level
Vom
3.0
Voltage gain
GV
5.5
Interchannel crosstalk
CT
—
Frequency characteristic
Cf
– 3.0
= 5V)
Typ.
Max.
Unit
4.5
—
13.0
V
—
20.5
29.0
mA
3.5
—
VP-P
f = 1kHz, THD = 0.5%
6.0
6.5
dB
f = 1MHz, VIN = 1.0VP-P
– 65
—
dB
f = 4.43MHz, VIN = 1.0VP-P
0
1.0
dB
f = 10MHz / 1MHz, VIN = 1.0VP-P
ZIN
14
20
26
kΩ
CTL pin switching level A
VTH-A
1.0
2.0
3.0
V
CTL pin switching level B
VTH-B
1.0
2.0
3.0
V
Input impedance
䊊Not designed for radiation resistance.
2
CC
Conditions
BA7612F is Max.9.5V
Multimedia ICs
BA7612N / BA7612F
•Measurement circuit
MUTE
1000µ
6dB Amp 75 Ω Driver
+
43
V
~
75
PP
Logic
1
2
3
4
5
6
7
8
VCC
A
47µF
SW1
1
1
1µF
2
50Ω
~
1µF
SW4
1
2 3
VCC
2
1µF
OSC
OSC
~
1
1µF
OSC
0.022µF
SW3
SW2
2
+
50Ω
1µF
~
50Ω
1µF
SW5
1
2 3
VCC
Fig. 1
3
Multimedia ICs
BA7612N / BA7612F
•Measurement conditions
Parameter
Switch settings
SW1
SW2
SW3
SW4
SW5
Measurement
method
Ammeter
Symbol
Current dissipation
ICC
2
2
2
2
2
Maximum
output
level
IN1
IN2
IN3
Vom
Vom
Vom
1
2
2
2
1
2
2
2
1
3
3
2
3
2
3
f = 1kHz
THD = 0.5%
∗1
IN1
IN2
IN3
IN1→IN2
IN1→IN3
IN1→MUTE
IN2→IN3
IN2→MUTE
IN3→MUTE
IN1
IN2
IN3
GV
GV
GV
CT
CT
CT
CT
CT
CT
Gf
Gf
Gf
1
2
2
1
1
1
2
2
2
1
2
2
2
1
2
2
2
2
1
1
2
2
1
2
2
2
1
2
2
2
2
2
1
2
2
1
3
3
2
3
2
2
2
2
2
3
3
2
3
2
3
2
3
2
3
2
2
3
2
3
f = 1MHz,
V = 1VP-P
∗2
CTLa
CTLb
VTH
VTH
2
2
2
1
1
2
1
3
3
1
∗5
Voltage gain
Interchannel
crosstalk
Frequency
characteristic
CTL pin
switching level
f = 4.43MHz,
V = 1VP-P
∗3
f = 10MHz / f = 1MHz,
V = 1VP-P
∗4
∗1: Connect a distortion meter to the output, and input a f = 1kHz sine wave. Adjust the input level until the output distortion is 0.5%.
This output voltage at this time multiplied by 2 is the maximum output level Vom (VP-P).
∗2: Input a 1VP-P, 1MHz sine wave. The voltage gain is given by GV = 20 log (VOUT / VIN) + 6.
∗3: Input a 1VP-P, 4.43MHz sine wave. The interchannel crosstalk is given by CT = 20 log (VOUT / VIN).
∗4: Input 1VP-P, 1MHz and 10MHz sine waves.
The frequency characteristic is given by Gf = 20 log (VOUT (f = 10MHz) / VOUT (f = 1MHz)).
∗5: Input a 1VP-P, 1MHz sine wave. Reduce the CTL pin voltage from VCC.
The CTL pin switching level (VTH) is the CTL pin voltage at which the VOUT level drops below 20mVP-P.
•Electrical characteristic curves
6
VCC = 12V
4
VCC = 9V
3
2
VCC = 5V
1
0
1
2
3
4
5
6
INPUT VOLTAGE: VIN (V)
Fig. 2 VIN vs. VOUT caracteristics (f = 1kHz)
4
VCC = 5V
VIN = 1VP-P
SIGNAL ATTENUATE LEVEL: (dB)
8
SIGNAL ATTENUATE LEVEL: (dB)
OUTPUT VOLTAGE: VOUT (V)
f = 1kHz
5
6
4
2
0
–2
–4
–6
–8
100k
1M
10M
FREQUENCY: (Hz)
Fig. 3 Frequency characteristics
100M
VCC = 5V
VIN = 1VP-P
0
– 20
– 40
– 60
– 80
100k
1M
10M
FREQUENCY: (Hz)
Fig. 4 Interchannel crosstalk
100M
Multimedia ICs
BA7612N / BA7612F
notes
•TheOperation
output impedance is approximately 32Ω. Therefore,
to ensure output matching, connect an external resistor of 43Ω.
•External dimensions (Units: mm)
BA7612N
BA7612F
5.0 ± 0.2
5
1
4
0.15 ± 0.1
4.4 ± 0.2
6.2 ± 0.3
1.2
0.6
0.8
1.3
0.3 ± 0.1
1.5 ± 0.1
2.54
0.11
5.8 ± 0.2
2.8 ± 0.2
8
1
3.5 ± 0.5
10.5 ± 0.5
19.3 ± 0.2
8
1.27
0.4 ± 0.1
0.3Min.
0.15
SIP8
SOP8
5
Appendix
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any
means without prior permission of ROHM CO.,LTD.
The contents described herein are subject to change without notice. The specifications for the
product described in this document are for reference only. Upon actual use, therefore, please request
that specifications to be separately delivered.
Application circuit diagrams and circuit constants contained herein are shown as examples of standard
use and operation. Please pay careful attention to the peripheral conditions when designing circuits
and deciding upon circuit constants in the set.
Any data, including, but not limited to application circuit diagrams information, described herein
are intended only as illustrations of such devices and not as the specifications for such devices. ROHM
CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any
third party's intellectual property rights or other proprietary rights, and further, assumes no liability of
whatsoever nature in the event of any such infringement, or arising from or connected with or related
to the use of such devices.
Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or
otherwise dispose of the same, no express or implied right or license to practice or commercially
exploit any intellectual property rights or other proprietary rights owned or controlled by
ROHM CO., LTD. is granted to any such buyer.
Products listed in this document use silicon as a basic material.
Products listed in this document are no antiradiation design.
The products listed in this document are designed to be used with ordinary electronic equipment or devices
(such as audio visual equipment, office-automation equipment, communications devices, electrical
appliances and electronic toys).
Should you intend to use these products with equipment or devices which require an extremely high level of
reliability and the malfunction of with would directly endanger human life (such as medical instruments,
transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other
safety devices), please be sure to consult with our sales representative in advance.
About Export Control Order in Japan
Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control
Order in Japan.
In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause)
on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.
Appendix1-Rev1.0
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