Document
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 frequency 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) 3) 4) 5) Built-in 6dB amplifier and 75Ω driver. Built-in mute. Sync-tip clamp inputs. Wide operating supply voltage range (4.5V ~ 13.0V, BA7613N) (4.5V ~ 9.5V, BA7613F).
6) Low power consumption (100mW 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
BA7613N
MUTE
BA7613F
IN1 6dB Amp 75Ω Driver CTLA 2 1
MUTE 6dB 75Ω
8 VOUT
7 VCC
LOGIC
CTLB 3
LOGIC
6 IN3
IN2 1 IN1 2 CTLA 3 CTLB 4 IN2 5 GND 6 IN3 7 VCC 8 VOUT
4
5 GND
•Truth table
CTL A L (OPEN) L (OPEN) H H CTL B L (OPEN) H L (OPEN) H OUT IN 1 IN 2 IN 3 MUTE
1
Multimedia ICs
BA7613N / BA7613F
•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 ∗1900∗3 / ∗2550∗4
Unit V mW °C °C
– 25 ~ + 75 – 55 ~ + 125
∗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
CLAMP INPUT
VCC VCC
OUTPUT
100 IN
32 OUT Output impedance: 32Ω [Typ.]
1.2µA
100µA
CTLA / CTLB
VCC
20k
100 CTLA / CTLB
50k
34k
2
Multimedia ICs
BA7613N / BA7613F
CC
•Electrical characteristics (unless otherwise noted, Ta = 25°V and V
Parameter Operating voltage Supply current Maximum output level Voltage gain Interchannel crosstalk Frequency characteristic CTL pin switch level A CTL pin switch level B Symbol VCC ICC Vom GV CT Cf VTH-A VTH-B Min. 4.5 — 3.0 5.5 — – 3.0 1.0 1.0 Typ. — 20.0 3.5 6.0 – 65 0 2.0 2.0 Max. 13.0 28.5 — 6.5 — 1.0 3.0 3.0 Unit V mA VP-P dB dB dB V V
= 5V)
Conditions BA7613F 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 — —
᭺Not designed for radiation resistance.
•Measurement circuit
MUTE 6dB Amp 75Ω Driver 1000µ
+
43Ω 75Ω V ~ PP
Logic
1
2
3
4
5
6
7
8
VCC A 0.022µF
47µF SW1 1 2 1 SW2 2 1 SW3 2
+
1µF OSC OSC
1µF OSC
1µF
~
50Ω
1µF
~
50Ω
1µF
~
50Ω
1µF
SW4 1 2 3 1
SW5 2 3
VCC
VCC
Fig. 1
3
Multimedia ICs
BA7613N / BA7613F
•Measurement conditions
Parameter Current dissipation Maximum output level Voltage gain IN1 IN2 IN3 IN1 IN2 IN3 IN1→IN2 IN1→IN3 IN1→MUTE IN2→IN3 IN2→MUTE IN3→MUTE IN1 IN2 IN3 CTLA CTLB Symbol ICC Vom Vom Vom GV GV GV CT CT CT CT CT CT Gf Gf Gf VTH VTH Switch settings SW1 2 1 2 2 1 2 2 1 1 1 2 2 2 1 2 2 2 2 SW2 2 2 1 2 2 1 2 2 2 2 1 1 2 2 1 2 2 1 SW3 2 2 2 1 2 2 1.