ROHM BD3460FS Data Sheet
Summary
This datasheet from ROHM Semiconductor covers the BD3460FS, BD3461FS, BD3464FV, and BD3465FV series of 4-channel and 6-channel electronic volume control ICs designed for car audio applications using a Bi-CMOS process. The devices feature the Advanced Switch circuit for noise-free volume transitions, low distortion at 0.0004 percent typical and low noise at 1.6 microvolts RMS, and an external sound mixing function with independent 3-channel ATT control on the BD3461FS and BD3465FV for mixing port
Page 1 Text Content
Sound Processors for Car Audios
General-Purpose Electronic Volume with Built-in Advanced Switch
No.11085EBT09
BD3460FS,BD3461FS,BD3464FV,BD3465FV
●Description BD3460FS, BD3461FS, BD3464FV, BD3465FV is 4ch / 6ch electronic volume which has audio efficiency of the industry best level. It has 『Outside sound mixing function (with volume)』(BD3461FS, BD3465FV) in favorite channel to mixing of the portable telephone and car navigation’s guide sound. Also, which has 『Ground isolation amplifier』(BD3460FS, BD3461FS) when connecting with the outside voice inputs such as portable audio and car navigation. It is lineup and possible to be chosen to the use by it. Also, Rohm has the volume switching shock sound prevention technique “Advanced switch”. Therefore, it supports the construct of the high quality car audio space by the simple control.
●Features 1) Reduce switching noise of volume by using advanced switch circuit. (Possible to control all steps) 2) Low distortion (0.0004% typ), Low noise (1.6μVrms) 3) Mixing for external sound monaural 3ch. It is possible that is mixed to front/Rear/Sub output (BD3461FS) Front/Rear output (BD3465FV) Lch/Rch independently. 4) Built-in 3ch ATT for external sound mixing that can be controlled independently. (BD3461FS, BD3465FV) 5) Built-in buffered stereo ground isolation amplifier inputs, ideal for external input. (BD3460FS, BD3461FS) 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,SSOP-B20. 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 I2C BUS.
●Applications It is the optimal for the car audio. Besides, it is possible to use for the car navigation, audio equipment of mini Compo, micro Compo, DVD, TV etc with all kinds.
●Line up matrix
Function BD3460FS BD3461FS BD3464FV BD3465FV
Volume 6ch 6ch 4ch 4ch Input for external sound mixing - ○ - ○ GND isolation amplifier ○ ○ - - Package SSOP-A24 SSOP-A24 SSOP-B20 SSOP-B20
www.rohm.com 2011.04 - Rev.B 1/28 © 2010 ROHM Co., Ltd. All rights reserved.
Page Summary Contents For ROHM BD3460FS Data Sheet
Manual Details
| Brand | ROHM |
|---|---|
| Pages | 29 |
| File Size | 734.11 KB |
| Published | June 22, 2026 |
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Frequently Asked Questions
How do I reduce switching noise when using this unit?
It uses an 'Advanced switch' circuit designed to minimize volume switching noise, allowing control of all steps.
What is the purpose of the built-in Ground Isolation Amplifier?
The amplifier provides buffered stereo inputs, which are ideal for connecting external voice sources like portable audio and car navigation units.
What range of voltage should I use when operating the unit?
The required power supply (VCC) must be between 7.0 V minimum and 9.5 V maximum.
Can this processor be used in systems other than car stereos?
Yes, it is suitable for a variety of car audio applications, as well as mini Compo, micro Compo, DVD, and TV equipment.