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BM28723MUV fiches techniques PDF

ROHM Semiconductor - 17W+17W Full Digital Speaker Amplifier

Numéro de référence BM28723MUV
Description 17W+17W Full Digital Speaker Amplifier
Fabricant ROHM Semiconductor 
Logo ROHM Semiconductor 





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BM28723MUV fiche technique
Datasheet
Middle Power Class-D Speaker Amplifier series
17W+17W
Full Digital Speaker Amplifier
with built-in DSP
BM28723MUV
General Description
BM28723MUV is a 17W+17W Class D stereo Speaker
Amplifier with built-in DSP designed for TVs specifically
for space-saving and low-power consumption.
BM28723MUV features BCD (Bipolar, CMOS, DMOS)
process technology to achieve high efficiency. In
addition, BM28723MUV is packaged in a compact back
surface heatsink type power package to attain low
power consumption, low heat generation without
external heatsink. The package Max output power is
only 17W+17W (When RL=8Ω) as compared to
20W+20W (When RL=8Ω) Max output power of
package with external heat-sink.
The product satisfies all needs for drastic downsizing,
low-profile structures and powerful high quality
playback of sound systems.
Key Specifications
Supply voltage range
10V to 24V
(VCCP1,VCCP2)
Speaker output power
17W+17W (Typ)
(VCCP1,VCCP2=18V,
RL=8Ω)
THD+N
Applications
0.08 [%] (Typ)
TVs (LCD, OLED)
Home Audio
Desktop PC
Amusement equipment
Electronic Music equipment, etc.
Typical Application Circuit
SP ch1
(Lch)
SP ch2
(Rch)
Features
Built-in DSP (Digital Sound Processor) for Audio
Signal Processing for TVs
12-Band/ch BQ, 3-Band DRC, Pre-Scaler, Channel
Mixer, Fine Master Volume, Hard Clipper, Level
Meter, etc.
Single Input System for Digital Audio Interface
(No Master Clock Required)
- I2S / LJ / RJ Format
- LRCLK: 32 / 44.1 / 48kHz
- BCLK: 32 / 48 / 64fS
- SDATA: 16 / 20 / 24 bit
Single Output System for Digital Audio Interface
- I2S Format
- SDATA: 16 / 20 / 24 bit
No Snubber Circuit Required (VCCP1,VCCP2≤22V)
because of Slew Rate Control
Output Feedback Circuit which prevents decrease
of sound quality caused by change of power supply
voltage, achieves low noise and low distortion, So
no large electrolytic-capacitors for Vcc bypass is
required.
Wide Range of Power Supply Input Voltage
The monaural output reduces the number of
external parts needed.
High Efficiency and Low Heat Dissipation allowing
Miniaturization, Slim Design, and also Power Saving
of the System
Eliminates pop-noise generated during the power
supply ON/OFF. High quality muting performance is
achieved using the soft-muting technology.
Built-in with Various Protection Functions for Highly
Reliability Design
- High Temperature Protection
- Under Voltage Protection
- Output Short Protection
- DC Voltage Protection for speaker
- Clock Stop Protection
Small Package, It reduces surface mount area
Package
VQFN032V5050
W(Typ) x D(Typ) x H(Max)
5.00mm x 5.00mm x 1.00mm
μ -con
Digital
Audio
Source
Figure 1. Typical application circuit
Product structureSilicon monolithic integrated circuit
.www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
VQFN032V5050
This product has not designed protection against radioactive rays
1/79
TSZ02201-0C1C0E900290-1-2
01.Dec.2016 Rev.001

PagesPages 30
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