BA7726AFS ROHM Electronics, BA7726AFS Datasheet - Page 3

• Manufacturer Part Number: BA7726AFS
• Manufacturer: ROHM Electronics

•
Note: Pin type EF: emitter follower, P-P: push-pull, B: base
Pin No.
Multimedia ICs
Pin descriptions
2, 1
6, 5
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
3
4
7
8
9
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.
ECHO LEVEL CTRL Microphone off (ground to 0.1Vcc) / echo level adjustment (0.2Vcc to Vcc)
LOOP GAIN CTRL
ALC DET LEVEL
VO DET LEVEL
L / VF / R CTRL
CMP BF NF IN
L / ST / R CTRL
LINE OUT L / R
DLY BF NF IN
NO / VC CTRL
CMP BF OUT
CMP DET CT
EXP DET CT
DLY BF OUT
MIC AMP NF
LINE IN L / R
MIC AMP IN
MUTE CTRL
EXP BF IN
CMP OUT
CMP DET
EXP DET
ALC DET
Pin name
VF LPF1
VF LPF2
VF LPF3
VO DET
BIAS
GND
V
CC
Line output (L, R)
Line output switching (LEFT / VOCAL FADER / RIGHT)
Line mute control input
Line input (L, R)
Vocal fader mode LPF capacitor
Vocal fader mode LPF capacitor
Ground
Loop attenuation ratio setting
Expand detection wave
Expand attack / recovery time setting
Attack R = 5.6k
BF input
LPF BF output (EXP)
LPF BF negative feedback input (EXP)
LPF BF output (CMP)
LPF BF negative feedback input (CMP)
Compression output
Compression attack / recover time setting
Attack R = 5.6k , recovery R = 85.6k
Compression detection wave
V
Bias and capacitor for ripple rejection
Microphone amplifier negative feedback
Microphone amplifier input
ALC attack / recovery time setting
ALC level setting
Microphone amplifier input detection level setting
Line output switching (NORMAL / VOCAL CUT)
Line output switching (LEFT / STEREO / RIGHT)
Microphone amplifier input detection attack / recover time setting
Vocal fader mode LPF capacitor
CC
, recovery R = 85.6k
Function
BA7726AS / BA7726AFS
Voltage
4.5V
2.5V
4.5V
4.5V
4.5V
4.5V
0.0V
4.5V
4.5V
4.5V
4.5V
4.5V
4.5V
4.5V
4.5V
9.0V
4.5V
4.5V
4.5V
2.5V
—
—
—
—
—
—
—
—
—
—
EF (NPN), 15k
EF (P - P)
EF (P - P)
EF (NPN)
EF (NPN)
B (NPN)
B (NPN)
B (NPN)
Pin type
B (PNP)
B (PNP)
23.5k
70.5k
23.5k
100k
100k
220
50k
60k
2k
1k
—
—
—
—
3