BD37531FV-E2 ROHM [Rohm], BD37531FV-E2 Datasheet - Page 29

• Manufacturer Part Number: BD37531FV-E2
• Description: Sound Processors with Built-in 3-band Equalizer
• Manufacturer: ROHM [Rohm]

© 2010 ROHM Co., Ltd. All rights reserved.
BD37531FV,BD37532FV,BD37533FV,BD37534FV
www.rohm.com
Notes on wiring
② Lines of GND shall be one-point connected.
③ Wiring pattern of Digital shall be away from that of analog unit and cross-talk shall not be acceptable.
④ Lines of SCL and SDA of I
⑥ About TEST pin(14,15,16pin), please use with OPEN.
① Please connect the decoupling capacitor of a power supply in the shortest distance as much as possible to GND.
⑤ Lines of analog input shall not be parallel if possible. The lines shall be shielded, if they are adjacent
The lines shall be shielded, if they are adjacent to each other.
to each other.
※Single1～3はGND Isolation2,3に切換可能
（About single input 1～3, it is possible to change from
single input to GND Isolation input 2,3.）
■Fader
■LPF
■Loudness
■3 Band P-EQ (Tone control)
■Volume
■Input Gain
★no pop noise
★no pop noise
★no pop noise
※About single input 1～3, it is possible to change
VCC/2
Gain:+15dB～-79ｄB/1dB step
fc=55/85/120/160Hz
Gain:20dB～0ｄB/1ｄB step
Gain：+20dB～-20dB/1dB step
Gain：+15dB～-79dB/1dB step
Gain：+20dB～0dB/1dB step
★no pop noise
★no pop noise
・ｆ0=250/400/800Hz
・Hicut1/2/3/4
・Bass：f0=60/80/100/120Hz
・Meddle:f0=500/1k/1.5k/2.5kHz
・Treble：f0=7.5k/10k/12.5k/15kHz
FIL
from single input to GND Isolation input 2,3.
28
Q=0.75/1/1.25/1.5
1
Q=0.5/1.0/1.5/2.0
Q=0.75/1.25
Single1
GND Isolation2
10μ
100k
2.2μ
GND
GND
27
2
2.2μ
100k
I
2
C BUS LOGIC
SDA
26
3
Single2
2
2.2μ
C BUS shall not be parallel if possible.
100k
SCL
25
4
Input selector (3 single-end and 2 stereo ISO)
GND Isolation3
2.2μ
100k
10μ
VCC
VCC
24
5
Single3
2.2μ
100k
0.1μ
OUTF1 OUTF2 OUTR1 OUTR2 OUTS1 OUTS2
23
6
10μ
100k
2.2μ
Fig.29 BD37532FV
★3 Band P-EQ
★Volume/Mute
(Tone control)
★Input Gain
★Loudness
ISO amp
22
7
※GND Isolation1, Full DifferentialはSingle4～6に切換可能
（About GND Isolation1 and Full Differential, it is possible
to change from differential input to single input 4～6.）
GND
GND Isolation1 or
29/37
2.2μ
10μ
250k
※About GND Isolation1 and Full Differential, it is possible
to change from differential input to single input 4～6.
Single4
21
8
10μ
250k
10μ
ISO amp
GND
20
9
10μ
250k
2.2μ
19
10
ISO amp
2.2μ
10μ
250k
GND
LPF
Full Differential or
Single5, Single6
18
11
10μ
250k
10μ
TEST3
17
12
ISO amp
250k
10μ
GND
TEST2
16
13
2.2μ
250k
MUTE
TEST1
15
14
Technical Note
2010.03 - Rev.A
R : [Ω]
C : [F]
Unit