BD37531FV-E2 ROHM [Rohm], BD37531FV-E2 Datasheet - Page 8

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

●Block diagram and pin configuration
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BD37531FV,BD37532FV,BD37533FV,BD37534FV
www.rohm.com
Descriptions of terminal
Terminal
No.
10
11
12
13
14
1
2
3
4
5
6
7
8
9
■Fader
■Loudness
■3 Band P-EQ (Tone control)
■Volume
■Input Gain
★no pop noise
★no pop noise
★no pop noise
VCC/2
Terminal
Gain:0dB～-79ｄB/1dB step
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
28
Q=0.75/1/1.25/1.5
TEST1
1
Q=0.5/1.0/1.5/2.0
Q=0.75/1.25
Name
DP1
DP2
EP1
EN1
EN2
EP2
100k
A1
A2
B1
B2
C1
C2
DN
GND
27
2
100k
A input terminal of 1ch
A input terminal of 2ch
B input terminal of 1ch
B input terminal of 2ch
C input terminal of 1ch
C input terminal of 2ch
D positive input terminal of 1ch
D negative input terminal
D positive input terminal of 2ch
E positive input terminal of 1ch
E negative input terminal of 1ch
E negative input terminal of 2ch
E positive input terminal of 2ch
Test Pin
I
2
C BUS LOGIC
26
3
100k
25
4
Input selector (3 single-end and 2 stereo ISO)
Description
100k
VCC
24
5
100k
23
6
100k
Fig.22 BD37531FV
★Volume/Mute
★3 Band P-EQ
(Tone control)
★Input Gain
★Loudness
ISO amp
22
7
GND
250k
8/37
Terminal
21
8
250k
ISO amp
No.
15
16
17
18
19
20
21
22
23
24
25
26
27
28
GND
20
9
250k
Terminal
19
10
TEST2
TEST3
OUTS2
OUTS1
OUTR2
OUTR1
OUTF2
OUTF1
Name
MUTE
ISO amp
VCC
SCL
SDA
GND
FIL
250k
GND
18
11
250k
External compulsory mute terminal
Test Pin
Test Pin
Subwoofer output terminal of 2ch
Subwoofer output terminal of 1ch
Rear output terminal of 2ch
Rear output terminal of 1ch
Front output terminal of 2ch
Front output terminal of 1ch
Power supply terminal
I
I
GND terminal
VCC/2 terminal
2
2
C Communication clock terminal
C Communication data terminal
17
12
ISO amp
250k
GND
16
13
Description
250k
Technical Note
2010.03 - Rev.A
15
14