|
|
PDF BD5471MUV Data sheet ( Hoja de datos )
| Número de pieza | BD5471MUV | |
| Descripción | Analog Input Stereo Class-D Speaker Amplifier | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de BD5471MUV (archivo pdf) en la parte inferior de esta página. Total 22 Páginas | ||
|
No Preview Available !
www.DataSheet4U.com
Small-sized Class-D Speaker Amplifiers
Analog Input
Stereo Class-D Speaker Amplifier
BD5471MUV
No.10101EAT03
●Description
BD5471MUV is a low voltage drive class-D stereo speaker amplifier that was developed for note-book PC, cellular phone,
mobile audio products and the others. LC filters of speaker outputs are unnecessary, and only 7 external components are
needed for speaker system. Also, 3.3V regulator in BD5471MUV can use power supply for audio-codec. BD5471MUV, that
is high-efficiency, low consumption, is suitable for application by using battery. Shutdown current is 0µA typically. Also,
start-up time is fast from shutdown to active mode. BD5471MUV can use for some applications that change mode between
“shutdown state” and “active state”.
●Features
1) High power 2.3W typ. (VDD=5V, RL=4Ω, THD+N=10%, stereo input)
High power 1.5W typ. (VDD=5V, RL=8Ω, THD+N=10%, stereo input)
2) Gain selectable by the external control (6, 12, 18, 24dB)
3) Pop noise suppression circuitry
4) Standby function (Mute function) [ISD=0uA]
5) Protection circuitry (Short protection [Audio, REG], Thermal shutdown, Under voltage lockout)
6) Built-in 3.3V regulator
7) Built-in BEEP detect circuitry
8) Very small package VQFN024V4040
●Applications
Notebook computers,Mobile electronic applications,Mobile phones,PDA etc.
●Absolute Maximum Ratings(Ta=+25℃)
Parameter
Symbol
Power Supply Voltage
VDD
Ratings
7.0
Unit
V
Power Dissipation
0.7 *1
W
Pd
2.2 *2
W
Storage Temperature Range
Tstg
-55 ~ +150
℃
Input Voltage Range *3
Vin -0.3 ~ VDD+0.3
Control Terminal
Input Voltage Range *4
Vctl -0.3 ~ VDD+0.3
*1 74.2mm×74.2mm×1.6mm, FR4 1-layer glass epoxy board(Copper on top layer 0%)
Derating in done at 5.6mW/℃ for operating above Ta=25℃. There are thermal via on the board
*2 4.2mm×74.2mm×1.6mm, FR4 4-layer glass epoxy board (Copper on bottom 2 and 3 layer 100%)
*3 input Terminal (INL+, INL-, INR+, INR-)
*4 Control Terminal (MUTE, G0, G1, EAPD, BEEP, REG_SD)
●Operating Conditions
Parameter
Power Supply Voltage
Symbol
VDD
Ratings
+4.5 ~ +5.5
V
V
Unit
V
Temperature Range
Topr
* These products aren’t designed for protection against radioactive rays.
-40 ~ +85
℃
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
1/21
2010.06 - Rev.A
1 page  
BD5471MUV
●Application Circuit Example
C5
10μF
Differential
Input
Audio
InputL+
Audio
InputL-
0.1μF
C2
INL+
24
0.1μF
C1
INL-
23
Differential
Input
Audio
InputR+
Audio
InputR-
0.1μF
C4
INR+
19
0.1μF
C3
INR-
20
Gain
Control
G0
G1
G0
18
G1
17
MUTE
MUTE
7
EAPD
BEEP
0.01μF
EAPD
8
BEEP
1
DET_C
2
C8
H：Active REG_SD
L：Shutdown
REG_SD
9
PVDDL REG_VDD
4 10
PVDDR AVDD
15 21
Gain
Select
G0 G1
Gain
Select
G0 G1
G0
150k
G1
150k
PWM
H-
Bridge
ERROR
Short
Short
Protection
PWM
H-
Bridge
ERROR
OUTL+
3
6
OUTL-
OUTR+
16
13
OUTR-
Short
TSD
UVLO
Control
Logic
ERROR
150k Bias OSC
150k
BEEP
150k Detect
REG
150k
Short
Protection
3.3V
12 5
REG_GND PGNDL
14 22
PGNDR AGND
REG_OUT
11
C7
2.2μF
Differential input
C5
10μF
Sing le -Ended
Input
Audio
Input L
0.1μF
C2
INL+
24
IN L-
23
C1 0.1μF
Single-Ended
Input
Audio
Input R
0.1μF
C4
INR+
19
C3
Gain
Control
G0
G1
MUTE
E APD
BEEP
0.01μF
IN R-
20
0.1μF
G0
18
G1
17
MUTE
7
EAPD
8
BEEP
1
DET_C
2
C8
H：Active REG_SD
L：Shutdown
REG_SD
9
PVDDL REG_VDD
4 10
PVDDR AVDD
15 21
Gain
Select
PWM
H-
Bridge
ERROR
OUTL+
3
6
OUTL-
G0 G1
Gain
Select
G0 G1
G0
150k
150k
G1
Short
Short
Protection
PWM
H-
Bridge
ERROR
OUTR+
16
13
OUTR-
Short
TSD
UVLO
Control
Logic
ERROR
150k Bias OSC
150k
BEEP
150k Detect
REG
150k
Short
Protection
3.3V
12 5
REG_GND PGNDL
14 22
PGNDR AGND
REG_OUT
11
C7
2.2μF
Single-Ended input
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
5/21
Technical Note
www.DataSheet4U.com
2010.06 - Rev.A
5 Page 
BD5471MUV
●Cntrol Terminal and output
Technical Note
www.DataSheet4U.com
Audio IN
[ Input ]
EAPD
[ Input ]
BEEP
[ Input ]
Audio Signal
Beep Signal
Audio Signal
Beep Signal Audio Signal
In case of EAPD=L,
it doesn’t output.
Equal to or more than
0.125sec.
Beep Signal
f=300~1760Hz
3.3msec 570usec
MUTE
[ Input ]
It detects that
BEEP was inputted.
It makes an amplifier state to
standby mode if BEEP isn’t
inputted equal to or more than 3.3msec.
Active
Active
Amplifier state
Standby
Standby
Amplifier is a standby.
The current consumption reduces.
Standby
Shutdown
The current consumption
in the audio part is zero.
Speaker output
MUTE
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
EAPD
L
L
L
L
H
H
H
H
L
L
L
L
H
H
H
H
Input
BEEP
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
Audio IN
No signal
signal
No signal
signal
No signal
signal
No signal
signal
No signal
signal
No signal
signal
No signal
signal
No signal
signal
Output
Amplifier state
Speaker output
L(Shutdown)
Hiz
L(Shutdown)
Hiz
L(Shutdown)
Hiz
L(Shutdown)
Hiz
L(Shutdown)
Hiz
L(Shutdown)
Hiz
L(Shutdown)
Hiz
L(Shutdown)
Hiz
L(Standby)
Hiz
L(Standby)
Hiz
H(Active)
No signal
H(Active)
signal
H(Active)
No signal
H(Active)
signal
H(Active)
No signal
H(Active)
signal
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
11/21
2010.06 - Rev.A
11 Page | ||
| Páginas | Total 22 Páginas | |
| PDF Descargar | [ Datasheet BD5471MUV.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| BD5471MUV | Analog Input Stereo Class-D Speaker Amplifier | 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 |