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| 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. *Applications recorders and televisions Video cassette *Features/ 1-output switches. 1) 3-input 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 VOUT 7 VCC 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 = 25C) 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 1C over 25C. 4 Reduced by 5.5mW for each increase in Ta of 1C over 25C. *Electrical characteristics (unless otherwise noted, Ta = 25C 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 1000 + 43 75 V ~ PP Logic 1 2 3 4 5 6 7 8 VCC A 47F + 0.022F SW1 1 2 1 SW2 2 1 SW3 2 1F 1F OSC 1F OSC OSC ~ 50 1F ~ SW4 SW5 1 23 50 1F ~ 50 1F 1 23 VCC VCC 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 notes *Operationimpedance is approximately 32. Therefore, The output 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 |
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