1/4

REV. A

Structure

:

Silicon Monolithic Integrated Circuit

Product

:

Sound Processor for car audio

Type:

BD37522FS

Package:

SSOP-A24

1. Reduce switching noise of input gain control, mute, main volume, fader volume, bass, treble, loudness by using

advanced switch circuit [Possible to control all steps]

2. Built-in ground isolation amplifier inputs, ideal for external stereo input.

3. Built-in input gain controller reduce switching noise for volume of a portable audio input.

4. Decrease the number of external components by built-in 2-band equalizer filter and loudness filter. And, possible

to control Q, Gv, fo of 2-band equalizer and fo, Gv of loudness by I

5. It is possible for the bass, treble to the gain adjustment quantity of ±20dB and 1 dB step gain adjustment.

6. Bi-CMOS process is suitable for the design of low current and low energy. And it provides more quality for small

scale regulator and heat in a set.

7. Package is SSOP-A24. Putting input-terminals together and output-terminals together can make PCB layout

easier and can makes area of PCB smaller.)

8. It is possible to control by 3.3V / 5V for I

Parameter

Symbol

Limits

Unit

Power supply Voltage

VCC

10.0

V

Input voltage

VIN

VCC+0.3～GND-0.3

V

Power Dissipation

Pd

1000

※1mW

Storage Temperature

Tastg

-55～+150

℃

※1 At Ta＝25°C or higher, this value is decreaced to 8mW/°C

When Rohm standard board is mounted.

Rohm standard board:

Size：70×70×1.6(mm

material：FR4 glass-epoxy substrate (copper foil area: not more than 3%).

Parameter

Symbol

Min.

Typ.

Max.

Unit

Power supply Voltage

VCC

7.0

－

9.5

V

Temperature

Topr

-40

－

+85

℃

※Design against radiation-proof isn’t made.