1 multimedia ics video signal switcher ba7607 / BA7607F the ba7607and BA7607F are switching ics developed for use in vcrs. each contains three two-channel analog multiplexers. as two of the switches have sync-tip clamp inputs and the other one has non-clamped inputs these ics are ideal for switching audio, video and chroma signals. block diagram s a , s b : clamped input s c : non-clamped input output s a s b s c 1 in2 a 2 ctl a 3 out a 4 gnd 5 out b 6 out c 7 ctl c 8 in2 c 16 in1 a 15 gnd 14 in2 b 13 v cc 12 ctl b 11 in1 b 10 gnd 9 in1 c ctl l in2 h in1 applications video cassette recorders and televisions features 1) three 2-input / 1-output switches (two with sync-tip clamped inputs, the other one 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: 2.9v p-p typ., non-clamped input: 3.0v p-p typ.). 6) fast switching speed (50ns typ.). absolute maximum ratings (ta = 25?) parameter symbol limits unit v cc 9v pd 500 * mw topr 40 ~ + 85 c tstg 55 ~ + 125 c power supply voltage power dissipation operating temperature storage temperature * reduced by 5.0mw for each increase in ta of 1 c over 25 c.
2 multimedia ics ba7607 / BA7607F equivalent circuits r3 13.6k r4 200 r5 33k r17 12k i1 0.6ma i2 0.3ma i4 0.6ma i5 1ma r7 100 r10 100 r11 100 r13 100 r14 100 r9 200 r6 20k r12 200 r16 200 r15 200 r2 2.2k r1 1k q4 q5 q7 q8 q10 q11 q12 q9 q3 q2 q1 out v cc in sc r3 22k r8 25k r17 12k i1 0.6ma i2 0.3ma i4 0.6ma i5 1ma r7 100 r10 100 r11 100 r13 100 r14 100 r9 200 r12 200 r16 200 r15 200 r2 4k r1 1k q5 q6 q7 q8 q10 q11 q12 q9 q3 q2 q1 out v cc in sa, sb
3 multimedia ics ba7607 / BA7607F r3 400 r4 400 r5 25k r2 200 q3 q1 q5 q6 q2 q4 ctl r6 25k r1 50k v cc i2 0.6ma i1 0.25ma i3 0.06ma ctl electrical characteristics (unless otherwise noted, ta = 25? and v cc = 5v) parameter symbol min. typ. max. unit conditions v cc 4.5 5.0 5.5 v i cc 12.5 17.0 ma v om 2.6 2.9 v p-p v om 2.7 3.0 v p-p g v 0.5 0 0.5 db f = 1mhz, v in = 1v p-p c t 65 db f = 4.43mhz, v in = 1v p-p g f 3 0 1 db 10mhz / 1mhz, v in = 1v p-p z in 14 20 26 k w thd 0.007 % f = 1khz, 1v p-p v th 2.0 2.5 3.0 v f = 1khz, thd = 0.5%, clamped input f = 1khz, thd = 0.5%, non-clamped input non-clamped input , non-clamped input 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 note: refer to the measurement circuit given in fig. 1.
4 multimedia ics ba7607 / BA7607F reference date pin dc voltages (reference values) pin no. dc voltage dc voltage pin no. 1 2.05 9 2.48 2 4.91 10 0 3 0.65 11 2.05 4 0 12 4.91 5 0.65 13 5.00 6 1.76 14 2.05 7 4.91 15 0 8 2.48 16 2.05 units: vdc electrical characteristics parameter 0.49 0.65 0.80 vdc 20k w 1.7m w ?0 w min. typ. max. unit sync tip clamp level input impedance (no clamp) input impedance (with clamp) output impedance the input coupling capacitor values should be 0.1 m f to 1 m f.
5 multimedia ics ba7607 / BA7607F measurement circuit fig.1 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 v v v v cc v cc s 1b 47 / 16 223 v outa v outb v outc v cc s 3c 12 3 v a ~ osc 50 w 105 105 3 2 1 v s 2c ~ osc 50 w 105 105 3 2 1 v s 2a v cc s 3a 12 3 v ~ osc 50 w 105 105 3 2 1 v s 1a ~ osc 50 w 105 105 3 2 1 v s 1c 105 105 1 23 ~ 50 w v v s 2b s 3b 105 105 1 23 1 23 ~ osc v 50 w
6 multimedia ics ba7607 / BA7607F measurement conditions s 1a s 2a s 3a s 1b s 2b s 3b s 1c s 2c s 3c i cc 222222222 v om v om v om v om v om v om 3 2 2 2 2 2 2 3 2 2 2 2 2 3 2 2 2 2 2 2 3 2 2 2 2 2 2 3 2 2 2 2 2 3 2 2 2 2 2 2 3 2 2 2 2 2 2 3 2 2 2 2 2 3 g v g v g v g v g v g v 3 2 2 2 2 2 2 3 2 2 2 2 2 3 2 2 2 2 2 2 3 2 2 2 2 2 2 3 2 2 2 2 2 3 2 2 2 2 2 2 3 2 2 2 2 2 2 3 2 2 2 2 2 3 f = 1mhz, v = 1v p-p c t c t c t c t c t c t 2 3 2 2 2 2 3 2 2 2 2 2 2 3 2 2 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 3 2 2 2 2 3 2 2 2 2 2 2 3 f = 4.43mhz, v = 1v p-p g f g f g f g f g f g f 3 2 2 2 2 2 2 3 2 2 2 2 2 3 2 2 2 2 2 2 3 2 2 2 2 2 2 3 2 2 2 2 2 3 2 2 2 2 2 2 3 2 2 2 2 2 2 3 2 2 2 2 2 3 v = 1v p-p v th v th v th 3 2 2 2 2 2 1 2 2 2 3 2 2 2 2 2 1 2 2 2 3 2 2 2 2 2 1 2 2 2 2 2 2 2 2 2 2 2 2 1 2 2 1 2 3 thd thd 2 2 2 2 2 2 2 2 2 2 2 2 3 2 2 3 2 3 f = 1khz, thd = 0.5% i n1a i n2a i n1b i n2b i n1c i n2c i n1a i n2a i n1b i n2b i n1c i n2c i n1a i n2a i n1b i n2b i n1c i n2c i n1a i n2a i n1b i n2b i n1c i n2c ctl a ctl b ctl c i n1 c i n2 c i n1 c i n2 c f = 10m / f = 1m, z in z in note 1 note 2 note 3 note 4 note 5 note 6 note 7 parameter symbol switch settings measurement method current dissipation maximum output level voltage gain interchannel crosstalk frequency characteristic ctl pin switching level input impedance total-harmonic distortion note 1: connect a distortion meter to the output, and input a f = 1khz sine wave. adjust the output level until the output dist ortion is 0.5%. this output voltage at this time is the maximum output level v om (v p-p ). note 2: input a 1v p-p , 1mhz sine wave. the voltage gain is given by g v = 20 log (v out / v in ). note 3: input a 1v p-p , 4.43mhz sine wave. the interchannel crosstalk is given by c t = 20 log (v out / v in ). note 4: input 1v p-p , 1mhz and 10mhz sine waves. the frequency characteristic is given by g f = 20 log (v out (f = 10mhz) / v out (f = 1mhz)). note 5: input a 1v p-p , 1mhz sine wave. reduce the ctl pin voltage from v cc . the ctl pin switching level (v th ) is the ctl pin voltage at which the v out level drops below 20mv p-p . note 6: measure the input pin voltage v in 50 when a current of dc50 m a is flowing into the input pin. measure the input pin open-circuit voltage. the input impedance is given by z = (v in50 - v in 0 ) / 50 10 -6 [ w ]. note 7: input a 1v p-p , 1khz sine wave and measure the total-harmonic distortion of the output using a total-harmonic distortion meter.
7 multimedia ics ba7607 / BA7607F external dimensions (units: mm) sop16 0.51min. 0.3 0.1 9 16 8 1 6.5 0.3 3.2 0.2 4.25 0.3 0.5 0.1 19.4 0.3 2.54 0 ~ 15 7.62 dip16 ba7607 BA7607F 0.4 0.1 1.27 0.15 0.15 0.1 0.3min. 4.4 0.2 6.2 0.3 0.11 1.5 0.1 1 16 10.0 0.2 8 9
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