○Product structure：Silicon monolithic integrated circuit ○This product has no designed protection against radioactive rays

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TSZ02201-0C2C0E100350-1-2

© 2015 ROHM Co., Ltd. All rights reserved.

16.Dec.2015 Rev.001

TSZ22111・14・001

www.rohm.com

General-Purpose 6ch Electronic Volume with

Built-in Advanced Switch

BD3460FS

General Description

BD3460FS is a 6ch electronic volume which has the

best audio efficiency in the industry. It has a ground

isolation amplifier when connecting with external voice

inputs such as portable audio and car navigation. Also,

BD3460FS has a volume switching shock sound

prevention

technique

called

“Advanced Switch,”

supporting the construction of high quality car audio

space by simple control.

Features

■

Reduce switching noise of volume by using

Advanced Switch circuit.

■

Built-in buffered stereo ground isolation amplifier

inputs, ideal for external input.

■

Energy-saving design resulting in low-current

consumption by utilizing the Bi-CMOS process. It

has the advantage in quality over scaling down

the power heat control of the internal regulators.

■

Arranges all I/O terminals together for easier PCB

layout and smaller PCB area.

■

Applications

It is optimal for car audio. It can also be used for car

navigation, audio equipment of mini Compo, micro

Compo, DVD, TV, etc.

Key Specifications



Power Supply Voltage Range:

7.0V to 9.5V



Circuit Current (no signal):

25mA (Typ)



Total Harmonic Distortion:

0.0004%(Typ)



Maximum Input Voltage:

2.35Vrms (Typ)



Cross-talk Between Selectors:

-105dB (Typ)



Volume Control Range:

+23dB to -79dB



Output Noise Voltage:

1.9µVrms(Typ)



Residual Output Noise Voltage:

1.6µVrms (Typ)



Operating Temperature Range:

-40°C to +85°C

Package

W(Typ) x D(Typ) x H(Max)

Typical Application Circuit

100k

22

21

20

19

18

17

16

15

14

13

3

4

5

6

7

8

9

10

11

12

100k

100k

100k

100k

24

23

1

2

VCC/2

100k

100k

100k

BUFFERED

GND ISO AMP

VCC

GND

100k

100k

100k

■6 ch Volume

+23dB～-79ｄB/1 dB step,-∞

★： Advanced switch circuit

BUFFERED

GND ISO AMP

VCC

OUTS2

10μ

0.1μ

4.7μ

OUTS1

OUTR2

OUTR1

OUTF2

OUTF1

SDA

SCL

CS

4.7μ

4.7μ

4.7μ

4.7μ

GND

FIL

2.2K

4.7μ

10μ

INR1

1μ

1μ

1μ

4.7μ

4.7μ

10μ

10μ

1μ

1μ

1μ

10μ

10μ

INF1

INF2

INR2

INS1

INS2

DIFFOUT2

PIN2

NIN2

DIFFOUT1 NIN1

PIN1

+23dB to -79dB / 1dB

Unit

R : [Ω]

C : [F]

SSOP-A24

10.00mm x 7.80mm x 2.10mm

Datasheet

Datasheet