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Part: BA7612NF
Category:
Multimedia
Description:
Company: ROHM Electronics
Datasheet: Download BA7612NF datasheet File size : 97 kB
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Datasheet text preview:
Multimedia ICs
Video signal switcher
BA7612N / BA7612F
The BA7612N and BA7613F are three-channel analog multiplexers with built-in mute, 6dB amplifier and 75 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 20k (Typ.) input impedance. pp cations ·iAeolicassette recorders and televisions Vd
·)F3e-ainturuets/ 1-output switches. 1 p
2) 3) 4) 5) Built-in 6dB amplifier and 75 driver. Built-in mute. Large input impedance (20k Typ.). Wide operating supply voltage range (4.5V ~ 13.0V BA7612N) (4.5V ~ 9.5V BA7613F).
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).
·Block diagram
BA7612N
MUTE 6dB Amp 75 Driver
CTLA 2
BA7612F
IN1 1
MUTE 6dB 75
8 VO U T
7 V CC
LOGIC
CTLB 3
LOGIC
6 IN3
IN2
4
5 GND
1 IN1
2 CTLA
3 CTLB
4 IN2
5 GND
6 IN3
7 VCC
8 VOUT
·Truth table
CTL A L (OPEN) L (OPEN) H H CTL B L (OPEN) H L (OPEN) H OUT IN1 IN2 IN3 MUTE
1
Multimedia ICs
BA7612N / BA7612F
·Absolute maximum ratings (Ta = 25°C)
Parameter Power supply voltage Power dissipation Operating temperature Storage temperature Symbol VCC Pd Topr Tstg Limits
113.5 / 210.0 19003 / 25504
Unit V mW °C °C
25 ~ + 75 55 ~ + 125
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 VCC = 5V)
Parameter Operating voltage range Supply current Maximum output level Voltage gain Interchannel crosstalk Frequency characteristic Input impedance CTL pin switching level A CTL pin switching level B
Not designed for radiation resistance.
Symbol VCC ICC Vom GV CT Cf ZIN VTH-A VTH-B
Min. 4.5 -- 3.0 5.5 -- 3.0 14 1.0 1.0
Typ. -- 20.5 3.5 6.0 65 0 20 2.0 2.0
Max. 13.0 29.0 -- 6.5 -- 1.0 26 3.0 3.0
Unit V mA VP-P dB dB dB k V V
Conditions BA7612F is Max.9.5V
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
2
Multimedia ICs
BA7612N / BA7612F
·Measurement circuit
MUTE 6dB Amp 75 Driver 1000µ
+
43 75 V ~ PP
Logic
1
2
3
4
5
6
7
8
VCC A 47µF
+
0.022µF
SW1 1 2 1
SW2 2 1
SW3 2
1µF OSC OSC
1µF OSC
1µF
~
50
1µF
~
SW 4 SW5 1 23
50
1µF
~
50
1µF
1
23
VC C
VC C
Fig. 1
3
Multimedia ICs
BA7612N / BA7612F
·Measurement conditions
Parameter Current dissipation Maximum output level Voltage gain IN1 IN2 IN3 IN1 IN2 IN3 IN1IN2 IN1IN3 IN1MUTE IN2IN3 IN2MUTE IN3MUTE IN1 IN2 IN3 CTLa CTLb Symbol SW1 ICC Vom Vom Vom GV GV GV CT CT CT CT CT CT Gf Gf Gf VTH VTH 2 1 2 2 1 2 2 1 1 1 2 2 2 1 2 2 2 2 2 2 1 2 2 1 2 2 2 2 1 1 2 2 1 2 2 1 Switch settings SW2 SW3 2 2 2 1 2 2 1 2 2 2 2 2 1 2 2 1 1 2 SW4 2 3 3 2 3 3 2 3 2 2 2 2 2 3 3 2 1 3 SW5 2 3 2 3 3 2 3 2 3 2 3 2 2 3 2 3 3 1 Measurement method Ammeter f = 1kHz THD = 0.5% 1 f = 1MHz, V = 1VP-P 2 f = 4.43MHz, V = 1VP-P 3 f = 10MHz / f = 1MHz, V = 1VP-P 4
Interchannel crosstalk
Frequency characteristic CTL pin switching level
5
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 f = 1kHz OUTPUT VOLTAGE: VOUT (V) 5 VCC = 12V 4 VCC = 9V 3 2 VCC = 5V 1 SIGNAL ATTENUATE LEVEL: (dB) 8 6 4 2 0 2 4 6 8 100k 1M 10M 100M SIGNAL ATTENUATE LEVEL: (dB) VCC = 5V VIN = 1VP-P VCC = 5V VIN = 1VP-P 0 20
40
60
0
1
2
3
4
5
6
80 100k
1M
10M
100M
INPUT VOLTAGE: VIN (V)
FREQUENCY: (Hz)
FREQUENCY: (Hz)
Fig. 2 VIN vs. VOUT caracteristics (f = 1kHz)
Fig. 3 Frequency characteristics
Fig. 4 Interchannel crosstalk
4
Multimedia ICs
eratio notes ·hOepoutputnimpedance is approximately 32. Therefore, T to ensure output matching, connect an external resistor of 43.
BA7612N / BA7612F
·External dimensions (Units: mm)
BA7612N
19.3 ± 0.2 10.5 ± 0.5 5.8 ± 0.2 2.8 ± 0.2
BA7612F
5.0 ± 0.2 8 6.2 ± 0.3 4.4 ± 0.2 5
1.2
1 3.5 ± 0.5 2.54
8 0.6 0.8 1.3 0.3 ± 0.1
1.5 ± 0.1
1
4
0.11
1.27
0.4 ± 0.1
0.3Min. 0.15
SIP8
SOP8
0.15 ± 0.1
5
Others parts begin by ba
BA-1 BA-2 BA-3 BA-4 BA-5 BA-6 BA-7 BA-8 BA-9 BA-10 BA-11 BA-12 BA-13 BA-14 BA-15 BA-16 BA-17 BA-18
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