BA7613 [ROHM]
Video signal switcher; 视频信号切换器
| 型号： | BA7613 |
| 厂家： | 
ROHM |
| 描述： | Video signal switcher |
| 文件： | 总5页 (文件大小：66K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Multimedia ICs
Video signal switcher
BA7613N / BA7613F
The BA7613N 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 fre-
quency range. Sync-tip clamp inputs make this an ideal switch for video signals.
Applications
•
Video cassette recorders and televisions
Features
•
1) 3-input / 1-output switches.
2) Built-in 6dB amplifier and 75Ω driver.
3) Built-in mute.
6) Low power consumption (100mW Typ.).
7) Excellent frequency characteristics
(10MHz, 0dB Typ.).
4) Sync-tip clamp inputs.
8) Wide dynamic range (3.5VP-P Typ.).
9) Low interchannel crosstalk
5) Wide operating supply voltage range
(4.5V ~ 13.0V, BA7613N)
( – 65dB Typ., f = 4.43MHz).
(4.5V ~ 9.5V, BA7613F).
Block diagram
•
BA7613N
BA7613F
IN1
1
2
3
4
8
7
6
5
VOUT
VCC
MUTE
MUTE
6dB Amp 75Ω Driver
6dB
75Ω
CTLA
CTLB
IN2
LOGIC
IN3
LOGIC
3
GND
1
2
4
5
6
7
8
Truth table
•
CTL A
L (OPEN)
L (OPEN)
H
CTL B
OUT
IN 1
L (OPEN)
H
L (OPEN)
H
IN 2
IN 3
H
MUTE
1
Multimedia ICs
BA7613N / BA7613F
Absolute maximum ratings (Ta = 25°C)
•
Parameter
Symbol
VCC
Limits
Unit
V
Power supply voltage
Power dissipation
113.5 / 210.0
3
4
Pd
1900
/
2550
mW
°C
Operating temperature
Storage temperature
Topr
Tstg
– 25 ~ + 75
– 55 ~ + 125
°C
1 BA7613N.
2 BA7613F.
3 Reduced by 9.0mW 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.
Equivalent circuits
•
OUTPUT
CLAMP INPUT
VCC
VCC
32
100
OUT
IN
Output impedance:
32Ω [Typ.]
1.2µA
100µA
CTLA / CTLB
VCC
20k
100
50k
CTLA / CTLB
34k
2
Multimedia ICs
BA7613N / BA7613F
Electrical characteristics (unless otherwise noted, Ta = 25°V and VCC = 5V)
•
Parameter
Symbol
VCC
ICC
Min.
4.5
—
Typ.
—
Max.
13.0
28.5
—
Unit
V
Conditions
Operating voltage
BA7613F is Max.9.5V
Supply current
20.0
3.5
6.0
– 65
0
mA
VP-P
dB
dB
dB
V
—
f = 1kHz, THD = 0.5%
f = 1MHz, VIN = 1.0VP-P
f = 4.43MHz, VIN = 1.0VP-P
f = 10MHz / 1MHz, VIN = 1.0VP-P
—
Maximum output level
Voltage gain
Vom
GV
3.0
5.5
—
6.5
—
Interchannel crosstalk
Frequency characteristic
CTL pin switch level A
CTL pin switch level B
CT
Cf
– 3.0
1.0
1.0
1.0
3.0
3.0
VTH-A
VTH-B
2.0
2.0
V
—
᭺Not designed for radiation resistance.
Measurement circuit
•
1000µ
+
MUTE
6dB Amp 75Ω Driver
43Ω
75Ω
V
P P
~
Logic
3
1
2
4
5
6
7
8
VCC
A
+
47µF
SW3
0.022µF
SW1
2
SW2
1
2
1
1
2
1µF
50Ω
1µF
1µF
50Ω
OSC
OSC
OSC
50Ω
~
~
~
1µF
1µF
1µF
SW4
3
SW5
1
1
3
2
2
VCC
VCC
Fig. 1
3
Multimedia ICs
BA7613N / BA7613F
Measurement conditions
•
Switch settings
Measurement
method
Parameter
Symbol
SW1
2
SW2
SW3
2
SW4
SW5
2
Current dissipation
ICC
2
2
Ammeter
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
Maximum
output
level
IN1
IN2
IN3
GV
GV
GV
CT
CT
CT
CT
CT
CT
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
Voltage gain
IN1→IN2
IN1→IN3
IN1→MUTE
IN2→IN3
IN2→MUTE
IN3→MUTE
IN1
f = 4.43MHz,
V = 1VP-P
3
Interchannel
crosstalk
f
= 10MHz / f = 1MHz,
Frequency
characteristic
IN2
IN3
Gf
Gf
V = 1VP-P
4
5
CTL pin
switching level
CTLA
CTLB
VTH
VTH
2
2
2
1
1
2
1
3
3
1
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
•
5
20
0
VCC
= 12V
4
2
4
VCC = 9V
– 20
3
2
0
VCC = 5V
– 40
– 60
– 80
– 2
1
0
– 4
0
1
2
3
4
5
100k 300k
1M
3M
10M 30M 100M
100k 300k
1M
3M
10M 30M 100M
INPUT VOLTAGE: VIN (VP-P)
FREQUENCY: f (Hz)
FREQUENCY: f (Hz)
Fig. 2 VIN vs. VOUT (f = 1kHz)
Fig. 3 Frequency characteristics
Fig. 4 Interchannel crosstalk
Operation notes
•
The output impedance is approximately 32Ω. Therefore,
to ensure output matching, connect an external resistor of 43Ω.
4
Multimedia ICs
BA7613N / BA7613F
External dimensions (Units: mm)
•
BA7613N
BA7613F
5.0 ± 0.2
19.3 ± 0.2
8
5
2.8 ± 0.2
8
1
1
4
2.54
0.6
0.8
1.3
0.3 ± 0.1
1.27
0.4 ± 0.1
0.3Min.
0.15
SIP8
SOP8
5
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