ASP (Analog Sound Processor) ICs | New product new technology

High Fidelity! Multi-function!! Compact!!! ASP (Analog sound Processor) LSI

Features of BD3481FS/BD3485FS

•Industry-leading switch shock noise prevention

•Terminal configuration optimized for multi-purpose circuit boards

•Serial control map enables device development with only minor software changes

•Built-in advanced logic circuit reduces RAM capacity and microcontroller load

•Fewer external parts required, such as sound adjustment filters, results in improved compactness and board reliability

Specifications

Part No.

Power
Supply
(V)

Input
Current
(mA)

No. of input
selectors

Input
gain
(dB)

Volume
(dB)

Fader
volume
(dB)

Sub-
woofer
(dB)

Equalizer
(band)

Level
meter
output

Serial
control

Output
noise
(µVrms)

Max
output
(Vrms)

Distortion
(%)

Package

Single
input

Diff-amp
inpur

BD3481FS

7.0 to
9.5

15

3

1

0 to 20
(1dB/step)

+12 to
-40
(1dB/step)

0 to
-62,-∞
(1dB/step)

-

2

-

I²C*
BUS

6

2.3

0.005

SSOP-
A20

BD3485FS

7.0 to
9.5

36

3

1

0 to 20
(1dB/step)

+15 to
-79, -∞
(1dB/step)

3

Ö

I²C*
BUS

10.5

2.3

0.007

SSOP-
A32

» See here for Analog sound processor IC lineups

*I²C BUS is a registered trademark of Philips Corporation.

Applications

Car audio, TVs, and mini-component stereos etc.

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