BD37531FV-E2 ROHM [Rohm], BD37531FV-E2 Datasheet - Page 31

• 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
① Please connect the decoupling capacitor of a power supply in the shortest distance as much as possible to GND.
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
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.
■Fader
■LPF
■Loudness
■3 Band P-EQ (Tone control)
■Volume
■Input Gain
★no pop noise
★no pop noise
★no pop noise
VCC/2
Gain:+15dB～-79ｄB/1dB step
★no pop noise
fc=55/85/120/160Hz
Gain:20dB～0ｄB/1ｄB step
★no pop noise
Gain：+20dB～-20dB/1dB step
Gain：+15dB～-79dB/1dB step
Gain：+20dB～0dB/1dB step
・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
28
Q=0.75/1/1.25/1.5
1
Q=0.5/1.0/1.5/2.0
Q=0.75/1.25
※About single input 1～3, it is possible to change
2.2μ
Single1
10μ
100k
from single input to GND Isolation input 2,3.
GND
GND
27
2
2.2μ
100k
I
2
C BUS LOGIC
SDA
26
3
2
Single2
2.2μ
C BUS shall not be parallel if possible.
100k
SCL
25
4
Input selector (3 single-end and 2 stereo ISO)
2.2μ
100k
GND Isolation3
10μ
VCC
VCC
24
5
Single3
2.2μ
100k
0.1μ
OUTF1 OUTF2 OUTR1 OUTR2 OUTS1 OUTS2
23
6
10μ
2.2μ
100k
Fig.31 BD37534FV
★3 Band P-EQ
★Volume/Mute
(Tone control)
★Input Gain
★Loudness
ISO amp
22
7
GND
10μ
2.2μ
250k
31/37
※About GND Isolation1 and Full Differential, it is possible
21
8
to change from differential input to single input 4～6.
10μ
250k
10μ
ISO amp
GND
20
9
10μ
250k
2.2μ
19
10
ISO amp
10μ
250k
2.2μ
LPF
GND
18
11
10μ
250k
10μ
LOUT
Level meter
17
12
ISO amp
250k
10μ
GND
LRST
16
13
2.2μ
250k
MUTE
MIN
15
14
2.2μ
Technical Note
2010.03 - Rev.A
R : [Ω]
C : [F]
Unit