BA7726AS データシートの表示（PDF） - ROHM Semiconductor
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BA7726AS Datasheet PDF : 11 Pages
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Multimedia ICs
BA7726AS / BA7726AFS
•Pin descriptions
Pin No.
Pin name
Function
Voltage
2, 1
LINE OUT L / R Line output (L, R)
4.5V
3
L / VF / R CTRL Line output switching (LEFT / VOCAL FADER / RIGHT)
2.5V
4
MUTE CTRL Line mute control input
—
6, 5
LINE IN L / R Line input (L, R)
4.5V
7
VF LPF1
Vocal fader mode LPF capacitor
4.5V
8
VF LPF2
Vocal fader mode LPF capacitor
4.5V
9
VF LPF3
Vocal fader mode LPF capacitor
4.5V
10
GND
Ground
0.0V
11 ECHO LEVEL CTRL Microphone off (ground to 0.1Vcc) / echo level adjustment (0.2Vcc to Vcc)
—
12 LOOP GAIN CTRL Loop attenuation ratio setting
—
13
EXP DET
Expand detection wave
4.5V
14
EXP DET CT
Expand attack / recovery time setting
Attack R = 5.6kΩ , recovery R = 85.6kΩ
—
15
EXP BF IN
BF input
4.5V
16
DLY BF OUT LPF BF output (EXP)
4.5V
17
DLY BF NF IN LPF BF negative feedback input (EXP)
4.5V
18
CMP BF OUT LPF BF output (CMP)
4.5V
19
CMP BF NF IN LPF BF negative feedback input (CMP)
4.5V
20
CMP OUT
Compression output
4.5V
21
CMP DET CT
Compression attack / recover time setting
Attack R = 5.6kΩ, recovery R = 85.6kΩ
—
22
CMP DET
Compression detection wave
4.5V
23
VCC
VCC
9.0V
24
BIAS
Bias and capacitor for ripple rejection
4.5V
25
MIC AMP NF Microphone amplifier negative feedback
4.5V
26
MIC AMP IN Microphone amplifier input
4.5V
27
ALC DET
ALC attack / recovery time setting
—
28 ALC DET LEVEL ALC level setting
—
29
VO DET LEVEL Microphone amplifier input detection level setting
—
30
VO DET
Microphone amplifier input detection attack / recover time setting
—
31
NO / VC CTRL Line output switching (NORMAL / VOCAL CUT)
—
32
L / ST / R CTRL Line output switching (LEFT / STEREO / RIGHT)
2.5V
Note: Pin type EF: emitter follower, P-P: push-pull, B: base
∗ For pins marked with an asterisk ( ), refer to Input and output equivalent circuit.
All figures are designed values based on the measurement circuit in Fig. 1 (where Vcc = 9.0V), and are not guaranteed standards.
Pin type
EF (P - P)
∗
∗
100kΩ
23.5kΩ
70.5kΩ
EF (NPN), 15kΩ
—
∗
∗
50kΩ
—
B (NPN)
EF (NPN)
B (NPN)
EF (P - P)
B (NPN)
EF (NPN)
—
60kΩ
—
23.5kΩ
2kΩ
100kΩ
220Ω
B (PNP)
B (PNP)
1kΩ
∗
∗
3
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