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| Multimedia ICs Video signal switcher for AV amplifiers BA7626 / BA7626F The BA7626 and BA7626F are video signal switches that contain two five-channel analog multiplexers for switching chroma and audio signals, and two wide-band 6dB amplifiers. By simply adding transistor buffers to the outputs, it is possible to construct a record / playback switch for two record / playback VCRs, and three video playback machines (eg. laser desk players). Input switching and VCR record switching can be done independently. The inputs are terminated with 20k resistors, and are suitable for switching chroma and audio signals. *Applications(audio signals and S-pin chroma signals) and video selectors AV amplifiers *Features/ 3-output switches. 1) 5-input 2) 20k input impedance. 3) Built-in 6dB amplifiers. 4) 5V supply voltage. *Absolute maximum ratings (Ta = 25C) Parameter Power supply voltage Power dissipation Operating temperature Storage temperature Symbol VCC Pd Topr Tstg Limits 9 500 - 25 ~ +70 - 55 ~ +125 Unit V mW C C Reduced by 5.0mW for each increase in Ta of 1C over 25C. 1 Multimedia ICs BA7626 / BA7626F *Block diagram Monitor OUT GND IN5 GND IN4 CTL E IN3 CTL D 1 2 3 4 5 6 7 logic 6dB logic 16 15 14 13 12 11 10 9 IN1 CTL A VCC VCC IN2 CTL B VOUT2 CTL C 6dB 8 *Truth table A L H L H H B L L H H H E Monitor OUT IN1 IN2 IN3 IN4 IN5 C L H L H H D L L H H H E VOUT1 -- IN2 IN3 IN4 IN5 C L H L H H D L L H H H E VOUT2 IN1 -- IN3 IN4 IN5 L H L H L H Note 1: indicates "don't care" (H or L). 2 Multimedia ICs BA7626 / BA7626F *Equivalent input / output circuits (unless otherwise noted, Ta=25C and VCC = 5V) Pin No. Pin name Standard voltage (no input signal) Equivalent input / output circuit IN VCC 3 5 7 12 16 IN5 IN4 IN3 IN2 IN1 QN 200 3.6V 20k QN QN 4.3V 30k 100A CTL VCC 6 8 9 11 15 CTL E CTL D CTL C CTL B CTL A 50k 50k QN 0.6V 2k D QP 30k VCC 17k QN3 100 1 MONOUT 2.0V QN20 MONOUT QN2 QN QN6 VCC 40k QN5 200A 100 10 14 VOUT2 VOUT1 2.0V QN20 D VOUT 600A QN QN15 3 Multimedia ICs BA7626 / BA7626F *Electrical characteristics (unless otherwise noted, Ta = 25C and VCC = 5V) Parameter Operating voltage Supply current Maximum output level Voltage gain Interchannel crosstalk Mute level Frequency characteristic Input impedance CTL pin switch level Not designed for radiation resistance. Symbol VCC ICC Vom GV CT CTM Gf ZIN VTH Min. 4.5 -- 2.3 5.7 -- -- -3 16 2.2 Typ. 5.0 15.0 2.5 6.2 - 65 - 35 0 20 -- Max. 5.5 20.0 -- 6.7 - 45 - 25 3 24 3.3 Unit V mA VP-P dB dB dB dB k V Conditions -- -- f = 1kHz, THD = 0.5% f = 1MHz, VIN = 1VP-P f = 4.43MHz, VIN = 1VP-P f = 4.43MHz, VIN = 1VP-P 10MHz / 1MHz, VIN = 1VP-P -- -- *Measurement circuit VCC VCC 75 V 105 1 SW1 103 4.7 V VCC A 16 15 14 13 12 11 10 9 VOUT1 V VOUT2 V 12 3 SWC 23 12 SWA 3 1 SW2 V 75 V 105 23 12 SWB VCC 3 105 105 V logic 6dB logic 6dB SWD 12 1 MONITOR OUT V SW5 SW4 SW3 2 3 4 5 6 7 8 V 3 VCC 1 2 3 105 1 105 2 3 1 105 105 2 3 105 105 12 V SWE 3 75 V 75 V 75 V VCC 4 Multimedia ICs BA7626 / BA7626F *Measurement conditions Parameter Current dissipation Monitor OUT maximum output level Vom Vom Vom Vom Vom GV GV GV GV GV Symbol ICC 1MON 2MON 3MON 4MON 5MON 1MON 2MON 3MON 4MON 5MON Switch settings SW1 3 2 3 2 3 2 3 3 3 3 2 3 3 SW2 3 3 2 3 3 2 3 3 2 3 3 3 3 2 3 2 3 SW3 3 3 2 3 3 2 3 3 3 2 3 3 3 2 3 3 2 3 SW4 3 3 2 3 3 2 3 3 3 3 2 3 3 2 3 3 2 3 SW5 3 3 2 3 2 3 3 3 3 2 3 2 3 3 2 SWA 2 3 2 3 2 2 3 2 3 2 2 2 3 2 2 3 3 2 2 3 2 2 2 3 2 2 2 3 2 2 2 3 2 3 2 2 SWB 2 3 3 2 2 2 3 3 2 2 2 3 2 2 2 3 2 2 2 3 3 2 2 3 3 2 2 3 3 2 2 3 3 2 2 2 SWC 2 SWD 2 SWE 2 Measurement method -- 2 3 2 2 3 2 2 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 Note 1 Note 2 Voltage gain CT1 - 2MON CT1 - 3MON CT1 - 4MON CT1 - 5MON CT2 - 1MON CT2 - 3MON CT2 - 4MON CT2 - 5MON Monitor OUT interchannel crosstalk CT3 - 1MON CT3 - 2MON CT3 - 4MON CT3 - 5MON CT4 - 1MON CT4 - 2MON CT4 - 3MON CT4 - 5MON CT5 - 1MON CT5 - 2MON CT5 - 3MON CT5 - 4MON Monitor OUT frequency characteristic VOUT1 maximum output level Gf Gf Gf Gf Gf 1MON 2MON 3MON 4MON 5MON 2OUT1 3OUT1 4OUT1 5OUT1 Note 3 Note 4 Vom Vom Vom Vom Note 1 5 Multimedia ICs BA7626 / BA7626F *Measurement conditions Parameter Symbol SW1 VOUT1 voltage gain GV GV GV GV 2OUT1 3OUT1 4OUT1 5OUT1 3 2 3 3 3 3 3 2 3 2 3 SW2 2 3 3 2 3 3 3 2 3 3 2 3 3 2 3 SW3 3 2 3 3 3 2 3 3 3 2 3 3 3 SW4 3 2 3 3 3 3 2 3 3 2 3 3 2 3 3 2 3 Switch settings SW5 3 3 2 3 3 3 3 2 3 2 3 2 3 2 SWA SWB SWC 2 3 2 2 3 3 2 2 3 3 2 2 3 2 2 2 3 2 3 2 3 2 3 2 2 3 2 2 3 3 2 2 3 3 2 2 SWD 3 2 2 2 3 2 2 2 3 2 2 2 3 3 2 2 3 3 2 2 3 3 2 2 3 2 2 2 3 2 2 2 3 2 2 2 SWE Measurement method Note 2 3 2 3 2 3 2 3 2 2 3 3 2 3 2 3 2 CT1 - 2OUT1 CT1 - 3OUT1 CT1 - 4OUT1 CT1 - 5OUT1 CT2 - 1OUT1 CT2 - 3OUT1 CT2 - 4OUT1 CT2 - 5OUT1 VOUT1 interchannel crosstalk CT3 - 1OUT1 CT3 - 2OUT1 CT3 - 4OUT1 CT3 - 5OUT1 CT4 - 1OUT1 CT4 - 2OUT1 CT4 - 3OUT1 CT4 - 5OUT1 CT5 - 1OUT1 CT5 - 2OUT1 CT5 - 3OUT1 CT5 - 4OUT1 VOUT1 frequency characteristic VOUT2 maximum output level VOUT2 voltage gain Gf Gf Gf Gf 2OUT1 3OUT1 4OUT1 5OUT1 1OUT2 3OUT2 4OUT2 5OUT2 1OUT2 3OUT2 4OUT2 5OUT2 Note 3 Note 4 Vom Vom Vom Vom GV GV GV GV Note 1 Note 2 6 Multimedia ICs BA7626 / BA7626F Parameter Symbol CT1 - 2OUT2 CT1 - 3OUT2 CT1 - 4OUT2 CT1 - 5OUT2 CT2 - 1OUT2 CT2 - 3OUT2 CT2 - 4OUT2 CT2 - 5OUT2 Switch settings SW1 2 3 3 3 3 2 3 2 2 3 2 3 SW2 3 2 3 3 3 3 3 3 3 SW3 3 3 2 3 3 3 2 3 3 3 2 3 2 3 SW4 3 3 3 2 3 3 2 3 3 3 2 SW5 3 3 3 3 2 3 2 3 3 SWA SWB SWC 2 3 2 2 3 3 2 2 3 2 2 2 3 2 3 2 3 2 3 2 3 3 2 2 3 2 SWD 3 2 2 2 3 2 2 2 3 3 2 2 3 3 2 2 3 3 2 2 3 2 2 2 3 SWE Measurement method 1 3 3 1 3 2 3 2 3 2 2 3 3 2 1 VOUT2 interchannel crosstalk CT3 - 1OUT2 CT3 - 2OUT2 CT3 - 4OUT2 CT3 - 5OUT2 CT4 - 1OUT2 CT4 - 2OUT2 CT4 - 3OUT2 CT4 - 5OUT2 CT5 - 1OUT2 CT5 - 2OUT2 CT5 - 3OUT2 CT5 - 4OUT2 Note 3 VOUT2 frequency characteristic Mute level Gf Gf Gf Gf 1OUT1 3OUT1 4OUT1 5OUT1 Note 4 CTM VOUT1 CTM VOUT2 VTHA VTHB VTHC VTHD VTHE Note 5 1 3 3 1 CTL pin switching level 2 2 Note 6 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 (in dB) is given by GV = 20 log (VOUT / VIN). Note 3: Input a 1VP-P, 4.43MHz sine wave. The interchannel crosstalk (in dB) is given by CT = 20 log (VOUT / VIN) + 6. Note 4: Input 1VP-P, 1MHz and 10MHz sine waves. The frequency characteristic (in dB) is given by Gf = 20 log (VOUT (f = 10MHz) / VOUT (f = 1MHz)). Note 5: Input a 1VP-P, 4.43MHz sine wave. The mute level is given by CTM = 20 log (VOUT / VIN) + 6 (dB) Note 6: 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 10mVP-P. 7 Multimedia ICs BA7626 / BA7626F *Application example VCC 100 470 TV 75 + 1 MONOUT IN1 16 VCC 100 + 2.2 OUT 75 VTR IN1 2 FRONT AUX 75 4 REAR BS 75 6 2.2 LD 75 8 + GND CTL A 15 + 470 75 2.2 + 3 IN5 VOUT1 14 A933 GND VCC 13 103 + 5.0V + 2.2 + 5 IN4 IN2 12 + 47 2.2 OUT 75 VTR IN2 VCC 100 470 + CTL E CTL B 11 7 75 IN3 VOUT2 10 CTL D CTL C 9 F/R CTL REC CTL MON CTL *External dimensions (Units: mm) BA7626 BA7626F 19.4 0.3 16 9 6.5 0.3 16 6.2 0.3 4.4 0.2 9 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 8 0.15 0.1 |
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