BD3461FS_15 Datasheet, PDF (1/32 Pages) Rohm – General-Purpose 6ch Electronic Volume with Built-in Advanced Switch

Datasheet
General-Purpose 6ch Electronic Volume
with Built-in Advanced Switch
BD3461FS
General Description
BD3461FS is a 6ch electronic volume which has the
best audio efficiency in the industry. It has an external
sound mixing function (with volume) in the favorite
channel for mixing of portable audio and car
navigation’s guide sound. Also, BD3461FS 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.
 Mixing for external sound monaural 3ch. It is
possible that is mixed to front/Rear/Sub output
Lch/Rch independently.
 Built-in 3ch ATT for external sound mixing that can
be controlled independently.
 Built-in buffered 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 internal regulators.
 Arranges all I/O terminals together for easier PCB
layout and smaller PCB area.
 I²C BUS can be controlled by 3.3V / 5V.
Key Specifications
 Power Supply Voltage Range:
 Circuit Current (no signal):
 Total Harmonic Distortion:
 Maximum Input Voltage:
 Cross-talk between Selectors:
 Volume Control Range:
 Output Noise Voltage:
 Residual Output Noise Voltage:
 Operating Temperature Range:
7.0V to 9.5V
25mA(Typ)
0.0004% (Typ)
2.35Vrms (Typ)
-105dB (Typ)
+23dB to -79dB
1.9µVrms(Typ)
1.6µVrms (Typ)
-40°C to +85°C
Package
W(Typ) x D(Typ) x H(Max)
SSOP-A24
10.00mm x 7.80mm x 2.10mm
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.
Typical Application Circuit
FIL GND
10μ
SDA
SCL CS VCC OUTF1 OUTF2 OUTR1 OUTR2 OUTS1 OUTS2
10μ
0.1μ
4.7μ
4.7μ
4.7μ
4.7μ
4.7μ
4.7μ
2.2K
24
23
22
21
20
19
18
17
16
15
14
13
VCC
VCC/2 _GND
I²C BUS LOGIC
■6ch Volume
+2+32d3BdBto～-7-97d9BｄB/ /1d1dBB step,-∞
★：Advanced switch circuit
■Mixing ATT
Independent
0d0BdBto～-3-23d2BdB/ 8/d8BdB step,
control
-3-23d2BdtBo～-6-46d4Bd/B1/61d6BdB step,-∞
100k 100k 100k 100k 100k 100k 100k 100k 100k
BUFFERED
GND ISO AMP
100k 100k
1
2
3
4
5
6
7
8
9
10 11 12
1μ
1μ
1μ
1μ
1μ
1μ
10μ
10μ
10μ
4.7μ
10μ
10μ
INF1 INF2 INR1 INR2 INS1 INS2 EXT1 EXT2 EXT3 DIFFOUT NIN
PIN
Unit
R : [Ω]
C : [F]
○Product structure：Silicon monolithic integrated circuit
www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○This product has no designed protection against radioactive rays
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TSZ02201-0C2C0E100360-1-2
16.Dec.2015 Rev.001