BD3886FS Ver la hoja de datos (PDF) - ROHM Semiconductor

Número de pieza

componentes Descripción

fabricante

BD3886FS

Audio sound processor for TV

ROHM Semiconductor 

2/4

●Function

Function

AGC

Front volume

Surround

Bass

Treble

BBE

Rear volume

Specifications

4 step suppression level variable

0dB to –87dB (1dB step), -∞dB

Stereo Surround

14dB (2dB step)

14dB (2dB step)

Process control : 1 ～ 10 dB

Contour control : 1 ～ 10 dB

0dB ～-20dB (2dB step), -25dB, -30dB,

（With the independent control）

-45dB,

-60dB,

-∞dB

●Electrical characteristics

Unless specified: Ta=25C, VCC=9V, f=1kHz, VIN=1Vrms, Rg=600Ω, RL=10kΩ, Front Volume 0dB,

Rear Volume =0dB, Bass=0dB, Treble=0dB, AGC=OFF, SURROUND=OFF;BBE=OFF.

Parameter

Limits

Symbol

Unit

Min. Typ. Max.

Conditions

Current upon no signal

Maximum input voltage

Maximum output voltage

Voltage gain

IQ

－

8

20

mA Vin=0Vrms

Front Volume = -6dB

VIM1

2.6

2.8

－

Vrms THD(Vout)=1％

BPF=400-30KHz

VOM1

2.2

2.5

－

Vrms

THD=1％

BPF=400-30KHz

GV1

-2

0

2

dB GV=20log(Vout/Vin)

Channel balance

Total harmonic distortion

CB

THD1

-1.5

0

1.5

－ 0.008 0.1

dB CB = GV1-GV2

％

Vout=500mVrms

BPF=400-30KHz

Output noise voltage

Residual noise voltage

Cross talk 1ch→2ch

VNO1

－

6

18 μVrms BPF = IHF-A, Rg=0Ω

Front Volume = -87dB

VMNO1

－

1.5

10 μVrms Rear Volume = -∞dB

BPF = IHF-A, Rg=0Ω

CT12

70

80

－

dB CT = 20log(Vin/Vout)

BPF = IHF-A

REV. B

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