BA7644AN 데이터 시트보기 (PDF) - ROHM Semiconductor
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BA7644AN Datasheet PDF : 5 Pages
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Multimedia ICs
BA7644AN
•Measurement conditions
Parameter
Current dissipation
IN 1
Maximum
IN 2
output level
IN 3
IN 4
IN1
Voltage gain
IN2
IN3
IN4
Symbol
ICC
Vom
Vom
Vom
Vom
GV
GV
GV
GV
SW1
2
1
2
2
2
1
2
2
2
SW2
2
2
1
2
2
2
1
2
2
Switch settings
SW3 SW4 SW5
2
2
2
2
2
3
2
2
3
1
2
2
2
1
2
2
2
3
2
2
3
1
2
2
2
1
2
SW6
2
3
2
3
2
3
2
3
2
SW7
2
3
3
3
3
3
3
3
3
Measurement method
Ammeter
f = 1kHz,
THD = 0.5%
Note 1
f = 1MHz,
VIN = 1VP-P
Note 2
IN1→IN2
CT
IN1→IN3
CT
IN1→IN4
CT
IN1→MUTE
CT
Interchannel IN2→IN3
CT
crosstalk
IN2→IN4
CT
IN2→MUTE
CT
IN3→IN4
CT
IN3→MUTE
CT
IN4→MUTE
CT
1
2
2
2
3
2
3
1
2
2
2
2
3
3
1
2
2
2
2
2
3
1
2
2
2
2
1
1
1
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
3
2
2
1
2
∗
∗
2
2
2
2
1
∗
∗
2
IN 1
Frequency
IN 2
characteristic IN 3
IN 4
Gf
Gf
Gf
Gf
1
2
2
2
2
1
2
2
2
2
1
2
2
2
2
1
3
3
2
2
3
2
3
2
3
3
3
3
f = 10MHz / f = 1MHz
VIN = 1VP-P
Note 4
IN 1
Total-harmonic IN 2
distortion
IN 3
IN 4
THD
1
THD
2
THD
2
THD
2
2
1
2
2
2
2
1
2
2
2
2
1
3
3
2
2
3
2
3
2
3
3
3
3
f = 1kHz
VIN = 1VP-P
Note 5
IN 1
Input
IN 2
impedance
IN 3
IN 4
ZIN
3
2
2
2
3
3
3
ZIN
2
3
2
2
3
2
3
ZIN
2
2
3
2
2
3
3
ZIN
2
2
2
3
2
2
3
Note 6
CTL pin
switching level
CTL - A
CTL - B
CTL - C
VTH
2
2
1
2
1
3
3
VTH
2
1
2
2
3
1
3
VTH
1
2
2
2
3
3
1
Note 7
Note 8
∗ Anywhere is possible.
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 and measure the total-harmonic distortion of the output using a total-harmonic distortion meter.
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, 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 8: Input a 1VP-P, 1MHz sine wave. Increase the CTL pin voltage from 0V.
The CTL pin switching level (VTH) is the CTL pin voltage at which the VOUT level goes above 1.0VP-P.
4
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