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PDF BD37513FS Data sheet ( Hoja de datos )
| Número de pieza | BD37513FS | |
| Descripción | Sound Processor | |
| Fabricantes | ROHM Semiconductor | |
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Datasheet
Sound Processor with Built-in 2-band Equalizer
BD37513FS
General Description
BD37513FS is a sound processor with built-in 2-band
equalizer for car audio. The functions are 4ch stereo
input selector, input-gain control, main volume,
loudness, and 4ch fader volume. Moreover, its
“Advanced switch circuit”, which is an original ROHM
technology, can reduce various switching noise (ex.
No-signal, low frequency like 20Hz & large signal
inputs). “Advanced switch” makes control of
microcomputer easier, supporting the construction of a
high quality car audio system.
Key Specifications
Power Supply Voltage Range:
Circuit Current (No Signal):
Total Harmonic Distortion 1:
Maximum Input Voltage:
Cross-talk Between Selectors:
Volume Control Range:
Output Noise Voltage 1:
Residual Output Noise Voltage:
Operating Temperature Range:
7.0V to 9.5V
38mA(Typ)
0.001%(Typ)
2.3Vrms(Typ)
-100dB(Typ)
+15dB to -79dB
3.8µVrms(Typ)
1.8µVrms(Typ)
-40°C to +85°C
Features
Reduce switching noise of input gain control, mute,
main volume, fader volume, bass, treble, loudness
by using advanced switch circuit.
Built-in 1 differential input selector and 3
single-ended input selectors
Built-in ground isolation amplifier inputs, ideal for
external stereo input.
Built-in input gain controller reduces switching
noise for volume of a portable audio input.
Decrease the number of external components due
to built-in 2-band equalizer filter and loudness filter.
Also, it is possible to control Gv using I2C BUS
control.
It is possible to adjust the gain of the bass and
treble up to ±20dB with 1 dB step gain adjustment.
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 the internal regulators.
Input terminals and output terminals are organized
and separately laid out to keep the signal flow in
one direction which results in simpler and smaller
PCB layout.
It is possible to control the I2C BUS by 3.3V/5V.
Package
W(Typ) x D(Typ) x H(Max)
SSOP-A20
8.70mm x 7.80mm x 2.01mm
Applications
It is optimal for use in car audio systems. It can also be
used for audio equipment of mini Compo, micro Compo,
TV, etc.
○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
1/26
TSZ02201-0C2C0E100430-1-2
16.Dec.2015 Rev.001
1 page  
BD37513FS
Electrical Characteristics - continued
(Unless specified otherwise, Ta=25°C, VCC=8.5V, f=1kHz, VIN=1Vrms, Rg=600Ω, RL=10kΩ, A input, Input gain 0dB,
Mute OFF, Volume 0dB, Tone control 0dB, Loudness 0dB, Fader 0dB)
Limit
Parameter
Symbol Min Typ Max
Unit
Conditions
Mute Attenuation＊
Maximum Gain
Maximum Attenuation＊
Attenuation Set Error 1
Attenuation Set Error 2
Attenuation Set Error 3
Maximum Boost Gain
Maximum Cut Gain
Gain Set Error
Maximum Boost Gain
Maximum Cut Gain
Gain Set Error
Maximum Attenuation*
Attenuation Set Error 1
Attenuation Set Error 2
Attenuation Set Error 3
Output Impedance
Maximum Output Voltage
Maximum Gain
GMUTE
－ -105 -85
GV_MAX +13 +15 +17
GV_MIN
GV_ERR1
GV_ERR2
GV_ERR3
GB_BST
－
-2
-3
-4
+18
-100
0
0
0
+20
-85
+2
+3
+4
+22
GB_CUT -22 -20 -18
GB_ERR
-2
0
+2
GT_BST
+18 +20
+22
GT_CUT -23 -20 -17
GT_ERR
-2
0
+2
GF_MIN
－ -100 -90
GF_ERR1
-2
0
+2
GF_ERR2
-3
0
+3
GF_ERR3
-4
0
+4
ROUT
- － 50
VOM 2 2.2 －
GL_MAX +17 +20 +23
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Ω
Vrms
dB
Mute ON
GMUTE=20log(VOUT/VIN)
BW = IHF-A
Volume = 15dB
VIN=100mVrms
GV=20log(VOUT/VIN)
Volume = -∞dB
GV=20log(VOUT/VIN)
BW = IHF-A
GAIN & ATT=+15dB to -15dB
ATT=-16dB to -47dB
ATT=-48dB to -79dB
Gain=+20dB f=100Hz
VIN=100mVrms
GB=20log (VOUT/VIN)
Gain=-20dB f=100Hz
VIN=2Vrms
GB=20log (VOUT/VIN)
Gain=+20dB 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=+20dB to -20dB f=10kHz
Fader = -∞dB
GF=20log(VOUT/VIN)
BW = IHF-A
ATT=0dB to -15dB
ATT=-16dB to -47dB
ATT=-48dB to -79dB
VIN=100mVrms
THD+N=1％
BW=400Hz-30KHz
Gain 20dB
VIN=100mVrms
GL=20log(VOUT/VIN)
Gain Set Error
GL_ERR
-2
0
+2
dB GAIN=+20dB to +1dB
VP-9690A (Average value detection, effective value display) filter by Matsushita Communication is used for * measurement.
Phase between input / output is same.
www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
5/26
TSZ02201-0C2C0E100430-1-2
16.Dec.2015 Rev.001
5 Page 
BD37513FS
(5) Select Address & Data
Items
Initial setup 1
Initial setup 2
Initial setup 3
Input Selector
Input gain
Volume gain
Fader 1ch Front
Fader 2ch Front
Fader 1ch Rear
Fader 2ch Rear
Test mode 1
Test mode 2
Test mode 3
Test mode 4
Bass gain
Test mode 5
Treble gain
Loudness Gain
System Reset
Select
Address
(hex)
01
02
03
05
06
20
28
29
2A
2B
2C
41
44
47
51
54
57
75
FE
MSB
D7
Advanced
switch
ON/OFF
0
0
0
Mute
ON/OFF
1
0
0
0
Bass
Boost/
Cut
1
Treble
Boost/
Cut
0
1
Data
LSB
D6 D5
D4 D3 D2 D1
D0
Advanced switch time
0 of Input Gain/Volume 0
Tone/Fader/Loudness
0
Advanced switch time
of Mute
00
0 0 00
0
00
1 0 00
1
00
Input selector
00
Input Gain
Volume Gain / Attenuation
Fader Attenuation
Fader Attenuation
Fader Attenuation
Fader Attenuation
11
1 1 11
01
0 0 00
00
0 0 00
00
1 0 00
1
1
0
1
00
Bass Gain
00
0 0 00
0
00
Treble Gain
Loudness Hicut
00
0
Loudness Gain
0 00
1
Advanced switch
Note
1. The Advanced Switch works in the latch part while changing from one function to another.
2. Upon continuous data transfer, the Select Address rolls over because of the automatic increment function, as
shown below.
→01→02→03→05→06→20→28→29→2A→2B→2C
→41→44→47→51→54→57→75
3. For the function of Input Selector etc, Advanced Switch is not used. Therefore, please apply mute on the set side
when changing these settings.
4. When using mute function of this IC at the time of changing input selector, please switch mute ON/OFF while
waiting for advanced-mute time.
www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
11/26
TSZ02201-0C2C0E100430-1-2
16.Dec.2015 Rev.001
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet BD37513FS.PDF ] | |
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