Multimedia ICs
BA7649A / BA7649AF
•Measurement conditions
Parameter
Symbol
SW1
Switch settings
SW2 SW3 SW4 SW5 SW6 SW7 SW8
Measurement
method
Current dissipation
ICC
2
2
2
2
2
3
3
3
Ammeter
IN 1
Maximum
output level
IN 2
IN 3
IN 4
IN 5
IN 1
IN 2
Voltage gain
IN 3
IN 4
IN 5
Vom
1
2
2
2
2
3
3
3
Vom
2
1
2
2
2
3
2
3 f = 1kHz,
Vom
2
2
1
2
2
2
3
3 THD = 0.5%
Vom
2
2
2
1
2
2
2
3
Note 1
Vom
2
2
2
2
1∗∗2
GV
1
2
2
2
2
3
3
3
GV
2
1
2
2
2
3
2
3 f = 1MHz,
GV
2
2
1
2
2
2
3
3
VIN = 1VP-P
GV
2
2
2
1
2
2
2
3
Note 2
GV
2
2
2
2
1∗∗2
IN1→1N2
CT
IN1→1N3
CT
IN1→1N4
CT
IN1→1N5
CT
Interchannel
IN2→1N3
CT
crosstalk
IN2→1N4
CT
IN2→1N5
CT
IN3→1N4
CT
IN3→1N5
CT
IN4→1N5
CT
1
2
2
2
2
3
2
3
1
2
2
2
2
2
3
3
1
2
2
2
2
2
2
3
1
2
2
2
2
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
∗
2
2
∗
∗
3
2
∗
2
3
3
2
f = 4.43MHz,
VIN = 1VP-P
Note 3
2
2
1
2
2
2
2
3
2
2
1
2
2∗∗2
2
2
2
1
2∗∗2
IN 1
Frequency
characteristic
IN 2
IN 3
IN 4
IN 5
Gf
1
2
2
2
2
3
3
3 f = 10MHz,
Gf
Gf
Gf
Gf
2
2
2
1
2
2
2
2
2
3
2
1
2
2
2
3
2
1
2
2
2
3
3
3
f = 1MHz,
VIN = 1VP-P
2
2
2
2
1∗∗2
Note 4
CTL pin
switching level
CTLA
CTLB
CTLC
VTH
2
2
1
2
2
1
3
3
VTH
2
1
2
2
2
3
1
3
VTH
2
2
2
2
1∗∗1
Note 5
∗ Anywhere is possible.
Note 1: Connect a distortion meter to the output, and input a f = 1kHz sine wave. Adjust the output 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.
•Electrical characteristic curves
10
9
8
VCC = 12V
7
VCC = 9V
6
5
4
VCC = 5V
3
2
1
0
0 1 2 3 4 5 6 7 8 9 10
INPUT VOLTAGE: VIN (VP-P)
4
2
0
–2
–4
100k 300k 1M 3M 10M 30M 100M
FREQUENCY: f (Hz)
20
0
– 20
– 40
– 60
– 80
100k 300k 1M 3M 10M 30M 100M
FREQUENCY: f (Hz)
Fig. 2 VIN vs. VOUT (f = 1kHz)
4
Fig. 3 Frequency characteristics
Fig. 4 Interchannel crosstalk