BA7609F

Multimedia ICs Video signal switcher BA7609 / BA7609F The BA7609 and BA7609F are switching ICs developed for use in VCRs. Each contains three two-channel analog multiplexers. As one of the switches has sync-tip clamp inputs and the other two have non-clamped inputs these ICs are ideal for switching audio, video and chroma signals. •Applications recorders and televisions Video cassette •)Features2-input / 1-output switches (one with sync1 Three clamped inputs, the other two non-clamped). 2) 5V power supply. 3) Low power consumption (62.5mW Typ.). 4) Excellent frequency characteristics (10MHz, 0dB Typ.). 5) Wide dynamic range (clamped input: 2.9VP-P Typ., non-clamped input: 3.0VP-P, Typ.). 6) Fast switching speed (50ns Typ.). •Block diagram IN2a CTLa OUTa GND OUTb 1 2 3 4 5 16 15 14 13 12 IN1a GND IN2b VCC CTLb Sa Sb OUTc CTLc IN2c 6 7 8 11 10 9 IN1b GND IN1c SC CTL L H Output IN2 IN1 Sa, Sb: non-clamped input Sc: clamped input 1 Multimedia ICs BA7609 / BA7609F •Absolute maximum ratings (Ta = 25°C) Parameter Power supply voltage Power dissipation Operating temperature Storage temperature Symbol VCC Pd Topr Tstg Limits 9 500∗ – 40 ~ + 85 – 55 ~ + 125 Unit V mW °C °C ∗ Reduced by 5.0mW for each increase in Ta of 1°C over 25°C. •Equivalent circuits Sa, Sb IN VCC R3 13.6k I2 0.3mA Q5 R7 100 Q9 R12 200 R16 200 R4 200 R2 2.2k Q4 R6 20k R9 200 Q7 Q8 Q10 Q11 R15 200 Q3 R10 100 Q2 Q12 Q1 OUT R1 1k R5 33k I1 0.6mA R17 12k I4 0.6mA I5 1mA R11 100 R13 100 R14 100 2 Multimedia ICs Sc BA7609 / BA7609F IN VCC R3 22k Q5 R2 4k R7 100 Q9 Q6 I2 0.3mA R12 200 R16 200 R9 200 Q7 Q8 Q10 Q11 R15 200 Q3 R10 100 Q2 Q12 Q1 OUT R1 1k R8 25k I1 0.6mA R17 12k I4 0.6mA I5 1mA R11 100 R13 100 R14 100 CTL R1 50k I2 0.6mA Q1 Q6 R6 25k VCC R2 200 CTL 2 Q3 2 Q5 Q2 Q4 R5 25k I1 0.25mA R3 400 R4 400 I3 0.06mA Units :R=Ω 3 Multimedia ICs BA7609 / BA7609F CC •Electrical characteristics (unless otherwise noted, Ta = 25°C and V Parameter Operating voltage Supply current Maximum output level 1 Maximum output level 2 Voltage gain Interchannel crosstalk Frequency characteristic Input impedance Total-harmonic distortion CTL pin switch level Symbol VCC ICC Vom Vom GV CT Gf ZIN THD VTH Min. 4.5 — 2.6 2.7 – 0.5 — –3 14 — 2.0 Typ. 5.0 12.5 2.9 3.0 0 – 65 0 20 0.007 2.5 Max. 5.5 20.0 — — 0.5 — 1 26 — 3.0 = 5V) Conditions — — f = 1kHz, THD = 0.5% clamped input f = 1kHz, THD = 0.5% non-clamped input f = 1MHz, VIN = 1VP-P f = 4.43MHz, VIN = 1VP-P 10MHz / 1MHz, VIN = 1VP-P non-clamped input f = 1kHz, 1VP-P non-clamped input — Unit V mA VP-P VP-P dB dB dB kΩ % V Note: Refer to the measurement circuit given in Fig. 1. •Reference data(reference values) Pin DC voltages Units: Vdc Pin No. 1 2 3 4 5 6 7 8 DC voltage 2.48 4.91 1.76 0 1.76 0.65 4.91 2.05 Pin No. 9 10 11 12 13 14 15 16 DC voltage 2.05 0 2.48 4.91 5.00 2.48 0 2.48 Electrical characteristics Parameter Sync tip clamp level Input impedance (no clamp) Input impedance (with clamp) Output impedance Min. 0.49 — — — Typ. 0.65 20k 1.7M 30 Max. 0.80 — — — Unit Vdc Ω Ω Ω The input coupling capacitor values should be 0.1µF to 1µF. 4 Multimedia ICs BA7609 / BA7609F •Measurement circuit OSC V 105 V 1 23 S3b 50Ω VCC V 105 50Ω 105 1 23 S1b 1 2 3 105 47 / 16 VCC A S2b 223 16 15 14 13 12 11 10 9 S1a 123 105 105 S1C 123 1 2 3 VOUTa V 4 5 6 VOUTb VOUTc V V 7 8 V OSC 105 105 V 50Ω 50Ω S2a S3a S2C S3C V 123 V VCC OSC 50Ω 123 105 105 V OSC 1 2 3 105 123 105 V VCC 50Ω Fig.1 5 Multimedia ICs BA7609 / BA7609F •Measurement conditions Parameter Current dissipation Maximum output level IN1a IN2a IN1b IN2b IN1c IN2c IN1a IN2a IN1b IN2b IN1c IN2c IN1a IN2a IN1b IN2b IN1c IN2c IN1a IN2a IN1b IN2b IN1c IN2c CTLa CTLb CTLc IN1a IN2a IN1b IN2b IN1a IN2a IN1b IN2b Symbol ICC Vom Vom Vom Vom Vom Vom GV GV GV GV GV GV CT CT CT CT CT CT Gf Gf Gf Gf Gf Gf VTH VTH VTH ZIN ZIN ZIN ZIN THD THD THD THD Switch settings S1a 2 3 2 2 2 2 2 3 2 2 2 2 2 2 3 2 2 2 2 3 2 2 2 2 2 3 2 2 1 2 2 2 3 2 2 2 S2a 2 2 3 2 2 2 2 2 3 2 2 2 2 3 2 2 2 2 2 2 3 2 2 2 2 2 2 2 2 1 2 2 2 3 2 2 S3a 2 2 3 2 2 2 2 2 3 2 2 2 2 2 3 2 2 2 2 2 3 2 2 2 2 1 2 2 2 3 2 2 2 3 2 2 S1b 2 2 2 3 2 2 2 2 2 3 2 2 2 2 2 2 3 2 2 2 2 3 2 2 2 2 3 2 2 2 1 2 2 2 3 2 S2b 2 2 2 2 3 2 2 2 2 2 3 2 2 2 2 3 2 2 2 2 2 2 3 2 2 2 2 2 2 2 2 1 2 2 2 3 S3b 2 2 2 2 3 2 2 2 2 2 3 2 2 2 2 2 3 2 2 2 2 2 3 2 2 2 1 2 2 2 2 3 2 2 2 3 S1c 2 2 2 2 2 3 2 2 2 2 2 3 2 2 2 2 2 2 3 2 2 2 2 3 2 2 2 3 2 2 2 2 2 2 2 2 S2c 2 2 2 2 2 2 3 2 2 2 2 2 3 2 2 2 2 3 2 2 2 2 2 2 3 2 2 2 2 2 2 2 2 2 2 2 S3c 2 2 2 2 2 2 3 2 2 2 2 2 3 2 2 2 2 2 3 2 2 2 2 2 3 2 2 1 2 2 2 2 2 2 2 2 Measurement method Ammeter f = 1kHz THD = 0.5% Note 1 Voltage gain f = 1MHz V = 1VP-P Note 2 Interchannel crosstalk f = 4.43MHz V = 1VP-P Note 3 Frequency characteristic f = 10MHz f = 1MHz V = 1VP-P Note 4 CTL pin switching level Input impedance Note 5 Note 6 Total-harmonic distortion Note 7 Note 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 is the maximum output level Vom (VP-P). Note 2: Input a 1VP-P, 1MHz sine wave. The voltage gain is given by GV = 20 log (VOUT / VIN). Note 3: Input a 1VP-P, 4.43MHz sine wave. The interchannel crosstalk is given by CT = 20 log (VOUT / VIN). Note 4: Input 1VP-P, 1MHz and 10MHz sine waves. The frequency characteristic is given by Gf = 20 log (VOUT(f = 10MHz) / VOUT (f = 1MHz)). Note 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. Note 6: Measure the input pin voltage VIN50 when a current of DC50µA is flowing into the input pin. Measure the input pin open-circuit voltage. The input impedance is given by Z = (VIN50 - VIN0) / 50 × 10-6[Ω]. Note 7: Input a 1VP-P, 1kHz sine wave and measure the total-harmonic distortion of the output using a total-harmonic distortion meter. 6 Multimedia ICs BA7609 / BA7609F •External dimensions (Units: mm) BA7609 19.4 ± 0.3 16 9 6.5 ± 0.3 16 6.2 ± 0.3 4.4 ± 0.2 9 BA7609F 10.0 ± 0.2 0.51Min. 1 8 7.62 3.2 ± 0.2 4.25 ± 0.3 1 1.5 ± 0.1 8 0.11 0.3 ± 0.1 1.27 2.54 0.5 ± 0.1 0.4 ± 0.1 0.3Min. 0.15 0° ~ 15° DIP16 SOP16 0.15 ± 0.1 7