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Multimedia ICs
Video signal switcher
BA7606 / BA7606F
The BA7606 and BA7606F are switching ICs developed for use in video cameras. Each contains three two-channelanalog multiplexers. They feature a large dynamic range, and wide operating freqency range, and the switches have pedestal clamp inputs which are ideal for switching RGB and video signals.
*Applications recorders and televisions Video cassette *Features / 1-output switches. 1) Three 2-input
2) 5V power supply. 3) Pedestal clamp inputs 4) Low power consumption (62.5mW Typ.). 5) Excellent frequency characteristics (10MHz, - 1dB Typ.). 6) Wide dynamic range (2.6Vp-p Typ.). 7) Fast switching speed (50ns Typ.).
*Block diagram
IN2a 1 CTLa 2 OUTa 3 Sb Sa 16 IN1a 15 GND 14 IN2b 13 VCC 12 CTLb 11 IN1b SC 10 9 CLAMP PULSE IN1c
GND 4 OUTb 5 OUTc 6 CTLc 7 IN2c 8
CTL L H
Output IN2 IN1
Sa, Sb, Sc: pedestal-clamped input
*Absolute maximum ratings (Ta = 25C)
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 1C over 25C. 1
Multimedia ICs
BA7606 / BA7606F
*Equivalent circuits
IN
Sa, Sb, Sc
VCC R1 50k R3 50k R6 10.4k Q7 R5 6.2k Q2 Q6 R2 200 Pulse Q8 Q1 Q5 R12 100 Q4 Q16 Q3 OUT R4 1k R7 10k R10 25k I1 0.6mA R14 12k I3 0.6mA I4 1mA R13 100 R16 100 R17 100 Q9 R11 200 Q11 Q12 Q14 Q15 R18 200 Q13 Q10 R8 10k R9 100 I2 0.3mA R15 200 R19 200
CTL
VCC R1 50k I2 0.6mA Q1 Q6 R6 25k
R2 200 CTL
Q3
Q5
Q2
Q4
R5 25k
I1 0.25mA
R3 400
R4 400
I3 0.06mA
2
Multimedia ICs
BA7606 / BA7606F
*Electrical characteristics (unless otherwise noted, Ta = 25C and Vcc = 5V)
Parameter Operating voltage Supply current Maximum output level U Maximum output level D Voltage gain Interchannel crosstalk Frequency characteristics CTL pin switch level Clamp input level Symbol VCC ICC VomU VomD GV CT Gf VTH Vct Min. 4.5 -- 1.40 0.80 - 0.9 -- -3 2.0 0.75 Typ. 5.0 15.0 1.65 0.95 0 - 65 -1 2.5 -- Max. 5.5 23.0 -- -- 0.5 -- 1 3.0 2.2 Unit V mA VP-P VP-P dB dB dB V V Conditions -- -- Note 1 Note 2 f = 1MHz, VIN = 1VP-P f = 4.43MHz, VIN = 1VP-P 10MHz / 1MHz, VIN = 1VP-P -- --
Refer to the mesurement circuit given in Fig. 1.
Note 1: Positive-side dynamic range from the clamp level Note 2: Negative-side dynamic range from the clamp level
*Reference date(reference values) Pin DC voltages
Pin No. 1 2 3 4 5 6 7 8 DC voltage 2.96 4.91 1.54 0 1.54 1.54 4.91 2.96 Pin No. 9 10 11 12 13 14 15 16
Units: Vdc
DC voltage 2.96 4.97 2.96 4.91 5.00 2.96 0 2.96
Electrical characteristics
Parameter Pedestal clamp level Input impedance (with clamp) Output impedance Min. 1.20 -- -- Typ. 1.54 1.7M 30 Max. 1.95 -- -- Unit Vdc
The input coupling capacitor values should be 0.1F to 1F. Use a clamp pulse of at least 1S (BA7606). The pin 6 output impedance of the BA7606 is 130
3
Multimedia ICs
BA7606 / BA7606F
*Measurement circuit
VCC PG2 PG1 R C PG1 R C C 1 S1a 16 15 14 13 12 11 10 9 1 C PG1 R V C S1c 23 OSC 23 V 1 OSC S2b 23 1 A 1 23 S3b 23 S1b C V VCC OSC 47 OSC 1 234 S4 223 C PG1 VCC R C V R
1
2
3
4
5
6
7
8
S2a 1 C PG1 R C V 1 23 OSC
V ~ VOUTa S3a 23
V V ~~ VOUTb VOUTc C S3c 1 PG1 23 C R 1
S2c 23 OSC
V
Input waveform PG1 VINU VIND 63.556s PG2 5V VCC OSC VCC f = 4.43MHz f = 1MHz f = 10MHz R = 50 C = 1F V = 3VDC 0V 3.5s Output waveform VOUTU VOUTD
Fig.1
4
Multimedia ICs
BA7606 / BA7606F
*Measurement conditions
Parameter Current dissipation IN1a Maximum output level (U or D) IN2a IN1b IN2b IN1c IN2c IN1a IN2a Voltage gain IN1b IN2b IN1c IN2c IN1a IN2a Interchannel crosstalk IN1b IN2b IN1c IN2c IN1a IN2a IN1b Frequency characteristic IN2b IN1c IN2c CTLa CTL pin switching level Clamp pin CTLb CTLc Clamp 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 Vct Switch settings S1a 2 1 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 2 S2a 2 2 1 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 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
- 1dB. - 1dB.
S1b 2 2 2 1 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
S2b 2 2 2 2 1 2 2 2 2 2 3 2 2 2 2 3 2 2 2 2 2 2 3 2 2 2 2 2 2
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
S1c 2 2 2 2 2 1 2 2 2 2 2 3 2 2 2 2 2 2 3 2 2 2 2 3 2 2 2 3 2
S2c 2 2 2 2 2 2 1 2 2 2 2 2 3 2 2 2 2 3 2 2 2 2 2 2 3 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
S4c 4 1 1 1 1 1 1 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 2
Measurement method Ammeter
Note 1
OSC f = 1MHz VIN = 1VP-P Note 2
OSC f = 4.43MHz VIN = 1VP-P Note 3
OSC f = 10MHz f = 1MHz VIN = 1VP-P Note 4
OSC f = 1MHz VIN = 1VP-P Note 5 Note 6
Note 1: VomU is the value for VOUTU when VOUTU / VINU VomD is the value for VOUTD when VOUTD / VIND Note 2: GV = 20 log (VOUT / VIN). Note 3: CT = 20 log (VOUT / VIN). Note 4: Gf = 20 log (VOUT (f = 10MHz) / VOUT (f = 1MHz)).
Note 5: 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: Clamp pulse voltage at which VOUT falls below 0.4V and clamp pulse voltage at which VOUT falls below 1.4V.
5
Multimedia ICs
BA7606 / BA7606F
*External dimensions (Units: mm)
BA7606 BA7606F
19.4 0.3 16 9
6.5 0.3
10.0 0.2 16 6.2 0.3 4.4 0.2 9
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
6
0.15 0.1

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