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PDF UPA2008 Data sheet ( Hoja de datos )
| Número de pieza | UPA2008 | |
| Descripción | 3W STEREO CLASS-D AUDIO POWER AMPLIFIER | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de UPA2008 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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UNISONIC TECHNOLOGIES CO., LTD
UPA2008
Preliminary
3W STEREO CLASS-D AUDIO
POWER AMPLIFIER WITH DC
VOLUME CONTROL
DESCRIPTION
The UTC UPA2008 is a third generation 5-V class-D amplifier
which provides precise DC volume control, lower supply current,
lower noise floor, higher efficiency, smaller packaging, and fewer
external components. Designed using a new filter-free class-D
modulation technique, the UTC UPA2008 is capable of directly
driving the speakers, without needing a low-pass output filter
consisting of two inductors and three capacitors per channel.
Eliminating this output filter saves approximately 30% in system
cost and 75% in PCB area.
The UTC UPA2008 improves the chip-level shutdown control,
1µA total supply current making the device ideal for
battery-powered applications. It also protects the chip from being
destroyed by over temperature and short current failure. To save
battery power for more essential devices when battery voltage
drops to low levels, undervoltage shutdown is designed in the UTC
UPA2008.
In applications, class-D amplifier for LCD projectors, LCD
monitors, powered speakers, the UTC UPA2008 is also suitable for
battery operated and space constrained systems.
FEATURES
* 3W per channel into 3Ω speakers (THD+N=10%)
-< 0.045% THD at 1.5W, 1kHz, 3Ω load
* Filter free modulation scheme operates without a large and
expensive LC output filter
* DC volume control with 2dB steps from -38dB to 20dB
* Extremely efficient third generation 5V Class-D technology
-Low supply current, 7mA
-Low shutdown control, 1µA
-Low noise floor, -80dBV
-Maximum efficiency into 3Ω, 78%
-Maximum efficiency into 8Ω, 88%
-PSRR, -70dB
* Operating temperature range, -40°C~85°C
CMOS IC
www.unisonic.com.tw
Copyright © 2015 Unisonic Technologies Co., Ltd
1 of 8
QW-R107-068.a
1 page  
UPA2008
Preliminary
CMOS IC
ABSOLUTE MAXIMUM RATING over operating free-air temperature range unless otherwise noted
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage Range
Input Voltage Range
VDD ,PVDD
VI (RINN, RINP, LINN,
LINP, VOLUME)
-0.3~ 6
0~VDD
V
V
Storage Temperature Range
Lead Temperature 1,6mm (1/16 inch) from Case
for 10 Seconds
TSTG
-65~85
260
°C
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
MIN
TYP
MAX
UNIT
Supply Voltage
Volume Terminal Voltage
VDD 4.5
0
5.5 V
VDD
V
High-Level Input Voltage SHUTDOWN
VIH 2
V
Low-Level Input Voltage SHUTDOWN
VIL
0.8 V
PWM Frequency
200 300 kHz
Operating Free-Air Temperature
Operating Junction Temperature
TA -40
TJ
85 °C
125 °C
ELECTRICAL CHARACTERISTICS (TA=25°C, VDD=PVDD=5V, unless otherwise noted)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
Output Offset Voltage
(Measured Differentially)
|VOS| VI=0V, AV=20dB, RL=8Ω
5 25 mV
Power Supply Rejection Ratio
High-Level Input Current
Low-Level Input Current
Supply Current
RMS Supply Current at Max Power
PSRR
|IIH|
|IIL|
IDD
IDD(max)
VDD=PVDD=4.5V~5.5V
VDD=PVDD=5.5V, VI=VDD=PVDD
VDD=PVDD=5.5V, VI=0V
No Filter (No Load)
RL=3Ω , PO=2.5W/channel
(Stereo)
-70 dB
1 µA
1 µA
7 15 mA
1.8 A
Supply Current in Shutdown Mode
IDD(SD) SHUTDOWN =0V
0.05 1
μA
Drain-Source On-State Resistance
Rds(on)
VDD=5V,
IO= 500mA,
TJ= 25°C
High Side
Low Side
450 600 mΩ
450 600 mΩ
OPERATING CHARACTERISTICS
(TA=25°C, VDD=PVDD=5V, RL=3Ω , Gain=0dB (unless otherwise noted)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
Output Power
f=1kHz,
THD+N=1%
2.5 W
PO
RL=3Ω , Stereo
operation
THD+N=10%
3
W
Total Harmonic Distortion Plus Noise
Maximum Output Power Bandwidth
THD+N
BOM
PO=2.2W, f=20Hz~20kHz
PO=1.5W, f=1kHz
THD=5%
<0.3
0.045
20
%
%
kHz
Signal-to-Noise Ratio
SNR
Maximum Output at
THD+N<0.5%
96 dB
Thermal Trip Point
150 °C
Thermal Hysteresis
20 °C
Integrated Noise Floor
20Hz~20kHz, Volume=0dB
VN Inputs ac
Grounded
Volume=20dB
42 µVrms
85 µVrms
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 8
QW-R107-068.a
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet UPA2008.PDF ] | |
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