ba3837f ROHM Co. Ltd., ba3837f Datasheet - Page 7

• Manufacturer Part Number: ba3837f
• Description: Vocal Fader Ic
• Manufacturer: ROHM Co. Ltd.

BA3838F (unless otherwise noted, Ta = 25°C, Vcc = 10V, f
Mode table (A = pin14, B = pin15, C = pin16)
VF : vocal fader output
KC : signal passed through key controller
1. Gain of L / R input and output in the through mode: 14 dB (synchronous)
2. Gain of L / R input and TK output in the key controller mode: 8dB (synchronous)
3. Gain of FK input and L / R output in the key controller mode: 6dB (synchronous)
4. MIC input and L / R output are negative phase with a gain of 8dB.
0 : 0V
Quiescent current
Maximum output voltage
L / R gain
Low frequency gain
Microphone gain
Crosstalk
Vocal suppression rate
Total harmonic distortion
Noise level
Input impedance
Control pin threshold (high)
Control pin threshold (low)
Output switching DC differential
Multimedia ICs
Gain and relative phase: See block diagram.
Not designed for radiation resistance.
A B C
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
1 : 5V
Parameter
LOUT
KC
KC
KC
KC
VF
R
L
L
Symbol
VthH
THD
VthL
G
G
G
V
CT
SV
R
V
I
DC
Q
om
VM
VT
VF
IN
N
Min.
1.9
2.3
4.7
—
—
—
—
10
10
54
28
35
5
ROUT
KC
KC
KC
KC
VF
R
R
L
Typ.
0.02
2.7
2.8
—
—
14
14
70
33
15
50
8
7
Max.
0.07
3.6
0.3
—
—
—
—
17
17
11
22
65
46
L + R
TK
VF
VF
R
R
L
L
L
Vrms
Unit
Vrms
mA
mV
k
dB
dB
dB
dB
dB
IN
%
V
V
= 1kHz, V
Sound multiplexing mode (ROUT)
Vocal fader mode
Sound multiplexing (LOUT)
Through mode
Sound multiplexing (R)
Vocal fader mode
Sound multiplexing mode (L)
L + R
Through mode
THD = 1%, through mode
Through mode
fin = 50kHz, vocal fader mode
f
Vocal fader mode
Through mode, BW : 400Hz - 30kHz
R
LIN, RIN, MICIN, FK
Maximum output voltage differential between L, R and TK modes
IN
g
= 1kHz
= 0, DIN AUDIO, through mode
IN
BA3837 / BA3837F / BA3838F
= 150mV, R
Mode
l
= 100 )
Conditions
—
—
—
Key controller mode
—
—
—
—
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