BA3837 データシートの表示（PDF） - ROHM Semiconductor
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BA3837 Datasheet PDF : 11 Pages
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Multimedia ICs
BA3837 / BA3837F / BA3838F
•Electrical characteristics
BA3837 / F (unless otherwise noted, Ta = 25°C, Vcc = 10V, fIN = 1kHz, VIN = 150mV, RL = 100kΩ)
Parameter
Symbol
Quiescent current
IQ
Maximum output voltage
Vom
L / R gain
GVT
Low frequency gain
GVF
Microphone gain
GVM
Crosstalk
CT
Mute attenuation
MU
Vocal suppression rate
SV
Total harmonic distortion
THD
Noise level
VN
Input impedance
RIN
Control pin threshold (high)
VthH
Control pin threshold (low)
VthL
Output switching DC differential ∆DC
᭺ Not designed for radiation resistance.
Min. Typ. Max. Unit
Conditions
1.6 2.4 3.3 mA Through mode
2.3 2.8 — Vrms THD = 1%, through mode
10 14 17 dB Through mode
10 14 17 dB fin = 50kHz, vocal fader mode
5
8 11 dB
—
54 70 — dB fIN = 1kHz
73 80 — dB fIN = 1kHz
28 33 — dB Vocal fader mode
— 0.02 0.07 % Through mode, BW : 400Hz - 30kHz
— 15 22 µVrms Rg = 0, DIN AUDIO
35 50 65 kΩ LIN, RIN, MICIN, FK
4.7 — —
V
—
— — 0.3 V
—
— 7 26 mV Maximum output voltage differential between L, R and TK modes
Mode table (A = pin14, B = pin15, C = pin16)
ABC
LOUT
000
MUTE
001
VF
010
L
011
L
100
MUTE
101
KC
110
KC
111
KC
0 : 0V 1 : 5V
VF : vocal fader output
KC : signal passed through key controller
ROUT
MUTE
VF
L
R
MUTE
KC
KC
KC
TK
MUTE
VF
L
L
MUTE
VF
L
L+R
Mode
Mute
Vocal fader mode
Sound multiplexing mode
Through mode
Mute
Vocal fader mode
Sound multiplexing mode
L+R
Key controller mode
—
—
—
—
•
•••
(1) Microphone output is not muted during muting (ABC = 000 or 100).
(2) Gain and relative phase: See block diagram.
1. L / R input and output in the through mode are synchronous with a gain of 14dB.
2. L / R input and TK output in the key controller mode are synchronous with a gain of 8dB.
3. FK input and L / R output in the key controller mode are synchronous with a gain of 6dB.
4.MIC input and L / R output are negative phase with a gain of 8dB.
6
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