BA7611AN

Multimedia ICs Video signal switcher BA7611AN / BA7611AF The BA7611AN and BA7611AF are a three-channel analog multiplexers with built-in mute and a 6dB amplifier. The ICs designed for use in video cassette recorders. It features a large dynamic range and wide operating frequency range, and have sync-tip clamp inputs whitch are ideal for switching video signals. •Applications recorders and televisions Video cassette •Features/ 1-output switches. 1) 3-input 2) 3) 4) 5) Built-in 6dB amplifier. Built-in mute. Sync-tip clamp inputs. Wide operating supply voltage range (4.5V to 13.0V). 6) Low power consumption (50mW 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 BA7611AN MUTE BA7611AF IN1 6dB Amp CTLA 2 6dB 1 MUTE 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 IN1 IN2 IN3 MUTE 1 Multimedia ICs BA7611AN / BA7611AF •Absolute maximum ratings (Ta = 25°C) Parameter Power supply voltage Power dissipation Operating temperature Storage temperature Symbol VCC Pd Topr Tstg Limits 13.5 900∗1 (SIP8) / 550∗2 (SOP8) – 25 ~ + 75 – 55 ~ + 125 Unit V mW °C °C ∗1 Reduced by 9mW for each increase in Ta of 1°C over 25°C. ∗2 Reduced by 5.5mW for each increase in Ta of 1°C over 25°C. •Equivalent circuits CLAMP INPUT Vcc OUTPUT Vcc 100Ω IN OUT 1.2µA 100µA 2mA CTLa / CTLb Vcc 20kΩ 100Ω CTLa / b 50kΩ 34kΩ Note: Input bias current 1µA [Typ.] Output impedance 20Ω [Typ.] 2 Multimedia ICs BA7611AN / BA7611AF CC •Electrical characteristics (unless otherwise noted, Ta = 25°C 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. — 10.5 3.5 6.0 – 65 0 2.0 2.0 Max. 13.0 15.5 — 6.5 — 1.0 3.0 3.0 Unit V mA VP-P dB dB dB V V = 5V) Conditions — — Measurement Circuit Fig.4 Fig.4 Fig.4 Fig.4 Fig.4 Fig.4 Fig.4 Fig.4 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. •Electrical characteristic curves 10 9 OUTPUT VOLTAGE: VOUT (VP-P) 8 7 6 5 4 3 2 1 0 0 1 2 3 4 5 6 –2 100k 300k 1M 3M 10M 30M 100M VCC VCC VCC = 12V VOLTAGE GAIN: Cf (dB) 6 4 CROSSTALK: CT (dB) 20 = 9V 0 – 20 2 = 5V – 40 0 – 60 – 80 100k 300k 1M 3M 10M 30M 100M INPUT VOLTAGE: VIN (VP-P) FREQUENCY: f (Hz) FREQUENCY: f (Hz) Fig. 1 VIN vs. VOUT (f = 1kHz) Fig. 2 Frequency characteristics Fig. 3 Interchannel crosstalk •Measurement circuit MUTE 6dB Amp Logic VPP 4 5 6 7 8 1 2 3 VCC + SW1 1 2 1µF OSC 50Ω 1µF OSC 50Ω SW2 1 2 1µF OSC 1µF 50Ω 1µF SW3 1 2 1µF 47µF A 0.022µF SW4 1 2 31 SW5 23 VCC VCC Fig. 4 3 Multimedia ICs BA7611AN / BA7611AF •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 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 Interchannel crosstalk Frequency characteristic f = 10MHz f = 1MHz V = 1VP-P ∗4 ∗5 CTL pin switching level ∗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%. ∗2: Input a 1VP-P, 1MHz sine wave. The voltage gain is given by GV = 20 log (VOUT / VIN). ∗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. This output voltage at this time is the maximum output level Vom (VP-P). •External dimensions (Units: mm) BA7611AN BA7611AF 19.3 ± 0.2 10.5 ± 0.5 5.8 ± 0.2 2.8 ± 0.2 5.0 ± 0.2 8 5 1.2 6.2 ± 0.3 1 3.5 ± 0.5 2.54 8 0.6 0.8 1.3 0.3 ± 0.1 4.4 ± 0.2 1.5 ± 0.1 1 4 0.11 1.27 0.4 ± 0.1 0.3Min. 0.15 SIP8 SOP8 4 0.15 ± 0.1