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PDF BD37503FV Data sheet ( Hoja de datos )
| Número de pieza | BD37503FV | |
| Descripción | Sound Processor | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
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Datasheet
Sound Processor Series for Car Audio
Sound processor with Built-in
2-band Equalizer
BD37503FV
●General Description
Sound processor which has built-in 4input selector and
2-band equalizer filter. And, loudness filter and 2nd-order
anti-aliasing filter which attenuate noise occurs at output
of DAC are available, either one by switching.
●Features
Built-in differential input selector that can make
various combination of single-ended / differential
input.
Reduce switching noise by using advanced switch
circuit
Built-in ground isolation amplifier inputs, ideal for
external stereo input.
Decrease the number of external components by
built-in 2nd-order anti-aliasing filter
Decrease the number of external components by
built-in 2-band equalizer filter and loudness filter.
A PCB area can be reduced and PCB layouts become
easy thanks to that signal flow is gathered to one
direction by arrangement of input and output left side
and right side separately.
It is possible to control by 3.3V / 5V for I2C BUS serial
controller.
●Applications
It is the optimal for the car audio. Besides, it is
possible to use for the audio equipment of mini
Compo, micro Compo, TV etc with all kinds.
●Typical Application Circuit
●Key Specifications
Total harmonic distortion：
Maximum input voltage：
Common mode rejection ratio：
Maximum output voltage：
Output noise voltage：
Residual output noise voltage：
Ripple rejection:
Operating temperature range
0.001%(Typ.)
2.2Vrms(Typ.)
50dB(Min.)
2.1Vrms(Typ.)
5.8μVrms(Typ.)
2.8μVrms (Typ.)
-70dB (Typ.)
-40℃ to +85℃
●Package
SSOP-B20
W(Typ.) x D(Typ.) x H(Max.)
6.50mm x 6.40mm x 1.45mm
SSOP-B20
Figure 1. Application Circuit Diagram
○Product structure：Silicon monolithic integrated circuit
www.rohm.co.jp
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○This product is not designed protection against radioactive rays
1/28
TSZ02201-0V2V0E100000-1-2
2013.07.12 Rev.002
1 page  
BD37503FV
Datasheet
Item
Maximum gain
Maximum attenuation ＊
Attenuation set error
Maximum boost gain
Maximum cut gain
Gain set error
Maximum boost gain
Maximum cut gain
Gain set error
Maximum gain
Maximum attenuation ＊
Attenuation set error 1
Attenuation set error 2
Attenuation set error 3
Output impedance
Maximum output voltage
Maximum gain
Symbol
MIN.
GV MAX -1.5
GV MIN
GV ERR1
GB BST
－
-2
18
GB CUT
GB ERR
GT BST
-22
-2
18
GT CUT
GT ERR
GF BST
-22
-2
-2
GF MIN
GF ERR1
GF ERR2
GF ERR3
RO FAD
VOM F
－
-2
-3
-4
-
2
GLD MAX
13
Limit
TYP. MAX.
0 1.5
-100
0
20
-85
2
22
-20 -18
02
20 22
-20 -18
02
02
-100
0
0
0
－
2.1
-90
2
3
4
50
－
15 17
Unit Condition
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Ω
Vrms
dB
Volume = 0dB
VIN=100mVrms
Gv=20log(VOUT/VIN)
Volume = -∞dB
Gv=20log(VOUT/VIN)
BW = IHF-A
ATT=0dB to -36dB
Gain=+20dB f=100Hz
VIN=100mVrms
GB=20log (VOUT/VIN)
Gain=-20dB f=100Hz
VIN=2Vrms
GB=20log (VOUT/VIN)
Gain=+20 to -20dB f=100Hz
Gain=+20dB f=10kHz
VIN=100mVrms
GT=20log (VOUT/VIN)
Gain=-20dB f=10kHz
VIN=2Vrms
GT=20log (VOUT/VIN)
Gain=+20 to -20dB f=10kHz
Gain=0dB
GF=20log(VOUT/VIN)
Fader = -∞dB
GF=20log(VOUT/VIN)
BW = IHF-A
ATT=-1 to -15dB
ATT=-16 to -47dB
ATT=-48 to -63dB
VIN=100mVrms
THD+N=1％
BW=400-30KHz
Gain=15dB
GLD=20log(VOUT/VIN)
BW=IHF-A
Gain set error
GLD ERR
-2
0
2
dB Gain=0dB to -15dB
GLD=20log(VOUT/VIN)
Maximum gain
Gain +6dB
GOUT
4
6
8
dB VIN=100mVrms
MAX GOUT=20log(VOUT/VIN)
Gain set error
GOUT
-2
0
2
dB Gain=0dB, +6dB
ERR
※VP-9690A(Average value detection, effective value display) filter by Matsushita Communication is used for ＊ measurement.
※Phase between input / output is same.
www.rohm.co.jp
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
5/28
TSZ02201-0V2V0E100000-1-2
2013.07.12 Rev.002
5 Page 
BD37503FV
Datasheet
(5) Select Address & Data
Items
Initial setup 1
Initial setup 2
Input selector
Input gain
Volume gain
Fader 1ch Front
Fader 2ch Front
Fader 1ch Rear
Fader 2ch Rear
Bass gain
Treble gain
Loudness Gain
System Reset
Select
Address
(hex)
01
03
05
MSB
D7
1
Output
Gain
0
06 0
20
28
29
2A
2B
51
Bass
Boost/Cut
57
Treble
Boost/Cut
75 0
FE 1
D6
0
0
0
0
0
0
0
0
Data
LSB
D5 D4 D3 D2 D1 D0
100000
0
0
Loudness
select
0
0
Loudness
fo
000
Input selector
0 Input Gain
Volume Attenuation
Fader Attenuation F1
Fader Attenuation F2
Fader Attenuation R1
Fader Attenuation R2
0 Bass Gain
0 Treble Gain
00
Loudness Gain
000001
Advanced switch
Note
1. In function changing of the hatching part, it works Advanced switch.
2. Upon continuous data transfer, the Select Address is circulated by the automatic increment function, as shown
below.
→01→03→05→06→20→28→29→2A→2B→51→57→75
3. For the function of input selector, input gain and output gain etc, it is not corresponded for advanced switch.
Therefore, please apply mute on the side of a set when changes these setting.
www.rohm.co.jp
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
11/28
TSZ02201-0V2V0E100000-1-2
2013.07.12 Rev.002
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet BD37503FV.PDF ] | |
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