|
|
PDF BD37544FS Data sheet ( Hoja de datos )
| Número de pieza | BD37544FS | |
| Descripción | Sound Processor | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de BD37544FS (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
|
No Preview Available !
Datasheet
Sound Processor with Built-in 3-band Equalizer
BD37544FS
General Description
BD37544FS is a sound processor with built-in 3-band
equalizer for car audio. The functions are stereo input
selector (which can switch single and GND isolation),
input-gain control, main volume, super bass, 5ch fader
volume, LPF/HPF for subwoofer, and mixing input.
Moreover, “Advanced switch circuit”, which is an original
ROHM technology, can reduce various switching noise
(ex. No-signal, low frequency like 20Hz & large signal
inputs). Also, “Advanced switch” makes control of
microcomputer easier, and can construct a high quality
car audio system.
Features
Reduced switching noise of input gain control, mute,
main volume, fader volume, bass, middle, treble,
super bass, mixing by using advanced switch circuit.
Built-in differential input selector that can make
various combination of single-ended / differential
input.
Built-in ground isolation amplifier inputs, which is
ideal for external stereo input.
Built-in input gain controller reduces switching noise
for volume of a portable audio input.
Decreased number of external components due to
built-in 3-band equalizer filter, LPF for subwoofer,
and HPF. It is possible to control Q, GV, fO of 3-band
equalizer and fC of LPF/HPF through I2C BUS
control.
It is possible to adjust the gain of the bass, middle,
and treble up to ±20dB with 1 dB step gain
adjustment.
It is equipped with output terminals for Subwoofer.
Moreover, the stereo signal output of the front and
rear can also be chosen by the I2C BUS control.
Built-in mixing input and mixing attenuator.
Energy-saving design resulting in low-current
consumption is achieved 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.
Key Specifications
Power Supply Voltage Range:
Circuit Current (No Signal):
Total Harmonic Distortion:
THD+N1
THD+N2
Maximum Input Voltage:
Cross-talk Between Selectors:
Volume Control Range:
Output Noise Voltage:
VNO1
VNO2
Residual Output Noise Voltage:
Operating Temperature Range:
7.0V to 9.5V
38mA (Typ)
0.001% (Typ)
0.002% (Typ)
2.3Vrms(Typ)
-100dB(Typ)
+15 dB to -79dB
3.8µVrms(Typ)
4.8µVrms(Typ)
1.8µVrms(Typ)
-40°C to +85°C
Package
W(Typ) x D(Typ) x H(Max)
SSOP-A32
13.60 mm x 7.80mm x 2.01mm
.
Applications
It is optimal for car audio systems. It can also be used for
audio equipment of mini Compo, micro Compo, TV, etc.
.
〇Product structure : Silicon monolithic integrated circuit
.www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111 • 14 • 001
〇This product has no designed protection against radioactive rays
1/37
TSZ02201-0C2C0E100590-1-2
16.Dec.2015 Rev.001
1 page  
BD37544FS
Electrical Characteristics - continued
Parameter
Limit
Symbol
Min Typ Max
Minimum Input Gain
GIN_MIN
-2
0 +2
Maximum Input Gain
Gain Set Error
Mute Attenuation *
GIN_MAX
18
20
22
GIN_ERR
-2
0 +2
GMUTE
－ -105 -85
Maximum Gain
GV_MAX
13
15
17
Maximum Attenuation *
Attenuation Set Error １
Attenuation Set Error ２
Attenuation Set Error ３
Maximum Boost Gain
GV_MIN
－ -100 -85
GV_ERR1
GV_ERR2
GV_ERR3
-2
-3
-4
0 +2
0 +3
0 +4
GB_BST 18 20 22
Maximum Cut Gain
Gain Set Error
Maximum Boost Gain
GB_CUT -22 -20 -18
GB_ERR
-2
0
+2
GM_BST
18
20
22
Maximum Cut Gain
Gain Set Error
Maximum Boost Gain
GM_CUT -22 -20 -18
GM_ERR
-2
0
+2
GT_BST 18 20 22
Maximum Cut Gain
Gain Set Error
Input Impedance
Maximum Input Voltage
Maximum Attenuation *
Maximum Gain
GT_CUT -22 -20 -18
GT_ERR
-2
0
+2
RIN_M 19 27 35
VIM_M
2.0 2.2
－
GMX_MIN － -100 -85
GMX_MAX
5
7
9
Unit
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
kΩ
Vrms
dB
dB
Conditions
Input gain 0dB
VIN=100mVrms
GIN=20log(VOUT/VIN)
Input gain 20dB
VIN=100mVrms
GIN=20log(VOUT/VIN)
GAIN=+20dB to +1dB
Mute ON
GMUTE=20log(VOUT/VIN)
BW = IHF-A
Volume = 15dB
VIN=100mVrms
GV=20log(VOUT/VIN)
Volume = -∞dB
GV=20log(V 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=1kHz
VIN=100mVrms
GM=20log (VOUT/VIN)
Gain=-20dB f=1kHz
VIN=2Vrms
GM=20log (VOUT/VIN)
Gain=-20dB to +20dB f=1kHz
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
VIM at THD+N(VOUT)=1％
BW=400Hz-30KHz
MIX=OFF
GMX=20log(VOUT/VIN)
BW=INF-A
ATT=+7dB
GMX=20log(VOUT/VIN)
www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
5/37
TSZ02201-0C2C0E100590-1-2
16.Dec.2015 Rev.001
5 Page 
BD37544FS
Typical Performance Curves – continued
0
-10
-20
-30
-40
-50
-60
-70
10
100 1k 10k
Frequency [Hz]
100k
FigureF1r7e.qCuMeRnRcyvs(HFrze)quency
2.5
2.0
1.5
1.0
0.5
0.0
100
1000 10000
出力R負LOAD荷[o[homh] m]
100000
Figure 18. Output Voltage vs RLOAD
Figure 19. Advanced Switch 1
Figure 20. Advanced Switch 2
www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
11/37
TSZ02201-0C2C0E100590-1-2
16.Dec.2015 Rev.001
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet BD37544FS.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| BD37544FS | Sound Processor | ROHM Semiconductor |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |