|
|
PDF BD37532FV Data sheet ( Hoja de datos )
| Número de pieza | BD37532FV | |
| Descripción | Sound Processor | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de BD37532FV (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
|
No Preview Available !
Datasheet
Sound Processor with Built-in 3-band Equalizer
BD37532FV
General Description
BD37532FV is a sound processor with built-in 3-band
equalizer for car audio. A stereo input selector is
available that functions to switch single end input and
ground isolation input, input-gain control, main volume,
loudness, 5ch fader volume and LPF for subwoofer.
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 constructs a high
quality car audio system.
Features
Reduced switching noise of input gain control,
mute, main volume, fader volume, bass, middle,
treble, loudness 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 volume
switching noise for portable audio input.
Decreased number of external components due to
built-in 3-band equalizer filter, LPF for subwoofer
and loudness filter. It is possible to freely control Q,
Gv, fo of 3-band equalizer and fc of LPF, Gv of
loudness by I2C BUS control.
A gain adjustment quantity of ±20dB with a 1 dB
step gain adjustment is possible for bass, middle
and treble.
Equipped with terminals for subwoofer outputs.
Also, the audio signal outputs of the front, rear and
subwoofer can be chosen using the I2C BUS
control.
Energy-saving design resulting in low current
consumption is achieved utilizing the BiCMOS
process. It has the advantage in quality over
scaling down the power heat control of the internal
regulators.
Input pins and output pins are organized and
separately laid out in such a way that it simplifies
the pattern layout of the PCB and decreases the
board dimensions.
It is possible to control I2C BUS with 3.3V / 5V.
Key Specifications
Power Supply Voltage Range:
Circuit Current (No Signal):
Total Harmonic Distortion 1:
(FRONT,REAR)
Total Harmonic Distortion 2:
(SUBWOOFER)
Maximum Input Voltage:
Crosstalk Between Selectors:
Volume Control Range:
Output Noise Voltage 1:
(FRONT,REAR)
Output Noise Voltage 2:
(SUBWOOFER)
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)
+15dB 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-B28
10.0mm x 7.60mm x 1.35mm
Applications
It is optimal for car audio systems. It can also be used
for audio equipments like 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
1/30
TSZ02201-0C2C0E100530-1-2
16.Dec.2015 Rev.001
1 page  
BD37532FV
Electrical Characteristics – continued
Parameter
Symbol
Minimum Input Gain
Maximum Input Gain
Gain Set Error
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 Boost Gain
Maximum Cut Gain
Gain Set Error
Maximum Boost Gain
Maximum Attenuation *
Gain Set Error
Attenuation Set Error 1
Attenuation Set Error 2
Attenuation Set Error 3
Output Impedance
Maximum Output Voltage
Maximum Gain
GIN_MIN
GIN_MAX
GIN_ERR
GMUTE
GV_MAX
GV_MIN
GV_ERR1
GV_ERR2
GV_ERR3
GB_BST
GB_CUT
GB_ERR
GM_BST
GM_CUT
GM_ERR
GT_BST
GT_CUT
GT_ERR
GF_BST
GF_MIN
GF_ERR
GF_ERR1
GF_ERR2
GF_ERR3
ROUT
VOM
GL_MAX
Limit
Min Typ Max
Unit
Conditions
-2 0 +2
+18 +20 +22
-2 0 +2
Input gain 0dB
dB VIN=100mVrms
GIN=20log(VOUT/VIN)
Input Gain +20dB
dB VIN=100mVrms
GIN=20log(VOUT/VIN)
dB Gain=+20dB to +1dB
Mute ON
－ -105 -85 dB GMUTE=20log(VOUT/VIN)
BW = IHF-A
13 15 17
－ -100 -85
Volume = 15dB
dB VIN=100mVrms
Gv=20log(VOUT/VIN)
Volume = -∞dB
dB Gv=20log(VOUT/VIN)
BW = IHF-A
-2 0 +2 dB GAIN & ATT=+15dB to -15dB
-3 0 +3 dB ATT=-16dB to -47dB
-4 0 +4 dB ATT=-48dB to -79dB
Gain=+20dB f=100Hz
18 20 22 dB VIN=100mVrms
GB=20log (VOUT/VIN)
Gain=-20dB f=100Hz
-22 -20 -18 dB VIN=2Vrms
GB=20log (VOUT/VIN)
-2
0
+2
dB
Gain=+20dB to -20dB
f=100Hz
Gain=+20dB f=1KHz
18 20 22 dB VIN=100mVrms
GM=20log (VOUT/VIN)
Gain=-20dB f=1kHz
-22 -20 -18 dB VIN=2Vrms
GM=20log (VOUT/VIN)
-2 0 +2 dB Gain=+20dB to -20dB f=1kHz
Gain=+20dB f=10kHz
18 20 22 dB VIN=100mVrms
GT=20log (VOUT/VIN)
Gain=-20dB f=10kHz
-22 -20 -18 dB VIN=2Vrms
GT=20log (VOUT/VIN)
-2
0
+2
dB
Gain=+20dB to -20dB
f=10kHz
Fader=15dB
13 15 17
－ -100 -90
dB VIN=100mVrms
GF=20log(VOUT/VIN)
Fader = -∞dB
dB GF=20log(VOUT/VIN)
BW = IHF-A
-2 0 +2 dB Gain=+15dB to +1dB
-2 0 +2 dB ATT=-1dB to -15dB
-3 0 +3 dB ATT=-16dB to -47dB
-4 0 +4 dB ATT=-48dB to -79dB
－ － 50 Ω VIN=100mVrms
2
2.2
－
Vrms
THD+N=1％
BW=400Hz-30KHz
Gain 20dB
17 20 23 dB 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
5/30
TSZ02201-0C2C0E100530-1-2
16.Dec.2015 Rev.001
5 Page 
BD37532FV
Timing Chart
CONTROL SIGNAL SPECIFICATION
(1) Electrical Specifications and Timing for Bus Lines and I/O Stages
SDA
tBUF
tLOW
tR
SCL
tF
tHD;STAT
tSP
tHD;STA
tHD;DAT
PS
tHIGH
tSU;DAT
tSU;STAT Sr
Figure 21. Definition of Timing on the I2C-bus
Table 1 Characteristics of the SDA and SCL bus lines for I2C-bus devices
(Unless specified particularly, Ta=25°C, VCC=8.5V)
Parameter
Symbol
1 SCL clock frequency
2 Bus free time between a STOP and START condition
3
Hold time (repeated) START condition. After this period, the first clock
pulse is generated
4 LOW period of the SCL clock
5 HIGH period of the SCL clock
6 Set-up time for a repeated START condition
7 Data hold time:
8 Data set-up time
9 Set-up time for STOP condition
fSCL
tBUF
tHD;STA
tLOW
tHIGH
tSU;STA
tHD;DAT
tSU;DAT
tSU;STO
tSU;STOT
P
Fast-mode I2C-bus
Min Max
0 400
1.3 －
0.6 －
1.3
0.6
0.6
0.06(Note)
120
0.6
－
－
－
－
－
－
Unit
kHz
μS
μS
μS
μS
μS
μS
ns
μS
All values referred to VIH Min and VIL Max Levels (see Table 2).
(Note) The device must internally provide a hold time of at least 300 ns for the SDA signal (referred to the VIH Min of the SCL signal) in order to bridge the
undefined region of the falling edge of SCL.
About 7 (tHD;DAT), 8(tSU;DAT), make the setup in which the margin is fully in .
Table 2 Characteristics of the SDA and SCL I/O stages for I2C-bus devices
Parameter
Symbol
10 LOW level input voltage:
11 HIGH level input voltage:
12 Pulse width of spikes which must be suppressed by the input filter.
13 LOW level output voltage: at 3mA sink current
14 Input current each I/O pin with an input voltage between 0.4V and 4.5V.
VIL
VIH
tSP
VOL1
II
ｔHtHDD;;SSTTA A
:：22µuss
ｔHtHDD;;DDAAT T
:：11µuss
ｔStSUU;;DDAAT T
:：11µuss
Fast-mode devices
Min Max
-0.3 +1
2.3 5
0 50
0 0.4
-10 +10
ｔStSUU;;SSTTOO
：22µuss
Unit
V
V
ns
V
μA
SSCCLL
SDSADA
ｔBtBUUFF
：:44µuss
ｔtLLOOWW
：:33µuss
ｔHtHIIGGHH
：:11uµss
SCSLCLclcolocckk ffrreeqqueunecnyc:y2：520k5H0zkHz
Figure 22. A Command Timing Example in the I2C Data Transmission
www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
11/30
TSZ02201-0C2C0E100530-1-2
16.Dec.2015 Rev.001
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet BD37532FV.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| BD37532FV | 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 |