Datasheet
Middle Power Class-D Speaker Amplifier series
15W+15W
Class D Speaker Amplifier for Digital Input
General Description
BD5452AMUV is a Class D Speaker Amplifier designed
for Flat-panel TVs in particular for space-saving and
low-power consumption, delivers an output power of
15W+15W. This IC employs state-of-the-art Bipolar,
CMOS, and DMOS (BCD) process technology. With this
technology, the IC can achieve high efficiency. In
addition, the IC is packaged in a compact reverse heat
radiation type power package to achieve low power
consumption and low heat generation and eliminates
necessity of external heat-sink up to a total output power
of 30W. This product satisfies both needs for drastic
downsizing, low-profile structures and many function,
high quality playback of sound system.
Features
This IC has one system of digital audio interface.(I2S
format, SDATA: 16 / 20 / 24bit, LRCLK: 32kHz /
44.1kHz / 48kHz, BCLK: 64fs(fixed), MCLK: 256fs /
512fs)
Low supply current at RESET mode.
The decrease in sound quality because of the change
of the power supply voltage is prevented with the
feedback circuitry of the output. In addition, a low
noise and low distortion are achieved.
Eliminate large electrolytic-capacitors for high
performance of Power Supply Rejection.
Power Limit Function. (at RL =8 , 10W /5W /OFF)
Available for Monaural mode.
Within the wide range of the power supply voltage, it
is possible to operate in a single power supply. (10 to
18V)
It contributes to miniaturizing, making to the thin type,
and the power saving of the system by high efficiency
and low heat.
Eliminates pop noise generated when the power
supply goes on/off, or when the power supply is
suddenly shut off. High quality muting performance is
realized by using the soft-muting technology.
This IC is a highly reliable design to which it has
various protection functions. (High temperature
protection, under voltage protection, Output short
protection, Output DC voltage protection and Clock
stop protection, (MCLK, BCLK, LRCLK)
Small package (VQFN032V5050 package)
contributes to reduction of PCB area.
Key Specifications
Supply voltage:
Speaker output power:
(VCC=16V, RL=8
Total harmonic distortion:
Crosstalk:
PSRR:
Output noise voltage:
Standby current:
Operating temperature range:
Package(s)
VQFN032V5050
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Applications
Flat Panel TVs (LCD, Plasma), Home Audio, Desktop
PC, Amusement equipments, Electronic Music
equipments, etc.
Product structure Silicon monolithic integrated circuit
.
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© 2012 ROHM Co., Ltd. All rights reserved.
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VQFN032V5050
Typical Application Circuit
This product is not designed protection against radioactive rays
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Figure 1.
Typical Application Circuit
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BD5452AMUV
10V to 18V
15W+15W
, Power Limit=Off)
0.08 (Po=4.5W)
80dB(Typ.)
65dB(Typ.)
100 Vrms(Typ.)
100µA (Typ.)
-25
to +85
W(Typ.) x D(Typ.) x H(Max.)
5.00mm x 5.00mm x 1.00mm
BD5452AMUV
Pin Configuration
(TOP VIEW)
Datasheet
Pin Description
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Figure 2. Pin Configuration
I/O
I
I
Pin No.
9
10
11
Symbol
FILA
GNDA
I/O
O
-
Pin No.
17
18
Symbol
VCCP1
I/O
I
I
Pin No.
25
26
I
I
12
14
OUT1N
O
O
-
19
20
PLIMT0
PLIMT1
I
I
27
28
I
13
GNDP1
OUT1P
21
CLK_MOD
ERROR
VCCP2
I
29
O
O
-
22
O
I
I
30
O
15
16
O
23
31
O
GNDP1
24
32
or
Pin No.
1
2
3
4
5
6
7
8
Symbol
SDATA
BCLK
Symbol
GNDP2
OUT2P
GNDP2
OUT2N
VCCA
MCLK
I/O
-
O
O
-
O
O
I
I
LRCLK
RSTX
N
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© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 15 001
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REG3
FILP
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MUTEX
REG_G
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BD5452AMUV
Block Diagram
Datasheet
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© 2012 ROHM Co., Ltd. All rights reserved.
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Figure 3. Block Diagram
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BD5452AMUV
Absolute Maximum Ratings
Item
Supply voltage
Power dissipation
Input voltage
Terminal voltage 1
Terminal voltage 2
Terminal voltage 3
5
Open-drain terminal voltage
Operating temperature range
Storage temperature range
Maximum junction temperature
Symbol
VCCmax
Pd
VIN
VPIN1
VPIN2
VPIN3
VERR
Topr
Tstg
Tjmax
Limit
-0.3 to 22
3.26
4.56
-0.3 to 4.5
-0.3 to 7.0
-0.3 to 4.5
-0.3 to 22
-0.3 to 22
-25 to +85
-55 to +150
+150
Unit
V
W
W
V
V
V
V
V
Datasheet
1 The voltage that can be applied reference to GND (Pin 10, 13, 16, 25, 28).
2 Do not, however exceed Pd and Tjmax=150 .
3 74.2mm×74.2mm×1.6mm, FR4, 4-layer glass epoxy board
2
2
(Top and bottom layer back copper foil size: 20.2mm , 2nd and 3rd layer back copper foil size: 5505mm )
Derating in done at 26.1mW/
for operating above Ta 25 . There are thermal via on the board.
5 (Reference info.) It is confirmed to this terminal to be able to tolerate undershoot within the range of the following Figure 4
with ROHM evaluation board.
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Recommended Operating Rating
Item
Symbol
V
CC
R
L
Limit
10 to 18
3.6
3.2
Unit
V
V
CC
V
CC
18V
16V
Conditions
Supply voltage
Minimum load impedance
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© 2012 ROHM Co., Ltd. All rights reserved.
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Figure 4. Undershoot Tolerance Range
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Conditions
Pin 17,18,23,24,31
1
2
3
4
Pin 1 to 5, 19 to 21, 32
Pin 6,8,9
Pin 7
Pin 11,12,14,15,26,27,29,30
Pin 22
BD5452AMUV
Electrical Characteristics
Datasheet
Unless otherwise specified Ta=25 , Vcc=12V, f=1kHz, RL=8 , RSTX=3.3V, MUTEX=3.3V, PLIMT0=L, PLIMT1=L, fs=48kHz, MCLK=256fs,
Output LC filter
L=10uH, C=0.1uF
Item
Total circuit
Circuit current (Reset mode)
Circuit current (Mute mode)
Circuit current (Sampling mode)
Open-drain terminal Low level voltage
Regulator output voltage 1
Regulator output voltage 2
High level input voltage
Low level input voltage
Input current
Speaker Output
Symbol
Limit
Min
-
-
-
-
4.7
3
2
0
Typ
0.1
15
50
-
5.0
-
-
3.3
Max
0.2
25
80
0.8
5.3
3.6
Unit
Pin Condition
ICC1
ICC2
ICC3
VERR
VREGG
VREG3
VIH
VIL
IIH
mA
mA
mA
V
V
V
V
V
No load, RSTX=0V, MUTEX=0V
No load, RSTX=3.3V, MUTEX=3.3V
Pin22, I
O
=0.5mA
Pin6
Pin7
(Input pull-down terminal)
Maximum output power 1
Maximum output power 2
Maximum output power 3
Voltage gain1
Voltage gain2
Voltage gain3
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3.3
0.9
95
Pin 1 to 5, 1921, 32
Pin 1 to 5, 19 to 21, 32
50
66
µA
PO1
PO2
PO3
-
15
-
-
W
PLIMT0=L, PLIMT1=L
10
5
-
W
PLIMT0=H, PLIMT1=L
-
-
W
PLIMT0=H, PLIMT1=H
GV26
GV20
GV17
25
19
16
-
-
-
26
20
17
27
21
18
-
-
dB
dB
dB
%
%
THD1
THD2
THD3
CT
0.16
0.08
0.24
80
0.3
-
%
60
-
dB
P
O
=1W, BW=IHF-A
PLIMT0=H, PLIMT1=L
PLIMT0=H, PLIMT1=L
PSRR
VNO
fPWM1
fPWM2
fPWM3
65
-
dB
Vripple=1Vrms, f=1kHz
- dBFS, BW=IHF-A
PLIMT0=H, PLIMT1=L
fs=32kHz
6
fs=44.1kHz
fs=48kHz
6
6
-
-
-
-
100
256
352.8
384
200
-
-
-
µVrms
kHz
kHz
kHz
Pin 1 to 5, 19 to 21, 32, VIN = 3.3V
Vcc=16V, THD+n=10%,
6
6
6
6
6
6
Vcc=16V, THD+n=10%,
Vcc=16V, THD+n=10%,
Po=1W, PLIMT0=L, PLIMT1=L
Po=1W, PLIMT0=H, PLIMT1=L
Po=1W, PLIMT0=H, PLIMT1=H
P
O
=1W, BW=20 to 20kHz (AES17)
PLIMT0=H PLIMT1=L
6
P
O
=4.5W, BW=20 to 20kHz (AES17)
6
PLIMT0=H PLIMT1=L
P
O
=1W, BW=20 to 20kHz (AES17)
VCC=15.7V, PLIMT0=H PLIMT1=L
Total harmonic distortion1
Total harmonic distortion2
Total harmonic distortion3
Crosstalk
or
6
6
6
6
No load, RSTX=3.3V, MUTEX=0V
6
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PSRR
(Sampling mode)
Output noise voltage
(Sampling mode)
PWM sampling frequency
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© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 15 001
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These items show the typical performance of device and depend on board layout, parts, and power supply.
The standard value is in mounting device and parts on surface of ROHM’s board directly.
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