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Eutech Microelectronics

EUA2105 Datasheet Preview

EUA2105 Datasheet

5-W Stereo Class-D Audio Amplifier

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EUA2105
5-W Stereo Class-D Audio Amplifier
with 64-Step DC Volume Control
DESCRIPTION
The EUA2105 is a high efficiency, 2 channel bridged-tied
load (BTL), class-D audio power amplifier. Operating from
a 12V power supply, EUA2105 is capable of delivering
5W/ channel of continuous output power to a 8load with
1% THD+N. The EUA2105 features a differential input
architecture offering improved noise immunity over a
single-ended (SE) input amplifier. Stereo speaker volume
is controlled with a dc voltage applied to the volume
control terminal offering a range of gain from -68dB to32
dB.
The EUA2105 also features short-circuit and thermal
protection preventing the device from being damaged
during a fault condition. The EUA2105 is available in
thermally efficient 28-pin TSSOP package.
FEATURES
z Wide Supply Voltage: 8V to 15V
z Unique Modulation Scheme Reduces EMI Emission
z 5W/ch into an 8Load From 12V Supply
z Efficient, Class-D Operation Eliminates Heatsinks
z 64-Step DC Volume Control From -68dB to 32dB
z Thermal and Short-Circuit Protection
z Integrated Click and Pop Suppression
z 28-pin TSSOP Package with Thermal Pad
z RoHS compliant and 100% lead(Pb)-free
APPLICATIONS
z LCD Monitors/TVs
z All-in-One PCs
Typical Application Circuit
DS2105 Ver1.1 Dec. 2009
Figure1.
1




Eutech Microelectronics

EUA2105 Datasheet Preview

EUA2105 Datasheet

5-W Stereo Class-D Audio Amplifier

No Preview Available !

Pin Configurations
Package Type
Tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com
EUA2105
Pin Configurations
TSSOP-28
Pin Description
PIN TSSOP-28 I/O
DESCRIPTION
LINN
1 I Negative audio input for left channel.
LINP
2 I Positive audio input for left channel.
AVCC
3 - High-voltage analog power supply. Not internally connected to PVCCR or
PVCCL.
Input for controlling volume ramp rate when cycling SD or during power-up. A
FADEB 4 I logic low on this pin places the amplifier in fade mode. A logic high on this pin
allows a quick transition to the desired volume setting.
VOLUME
5
I DC voltage that sets the gain of the amplifier.
VREF
6 I Analog reference for gain control section.
AGND
7 - Analog ground for digital/analog cells in core.
BSLP
8 I/O Bootstrap I/O for left channel, positive high-side FET.
LOUTP
9 O Class-D 1/2-H-bridge positive output for left channel.
LOUTN 10 O Class-D 1/2-H-bridge negative output for left channel.
BSLN
11 I/O Bootstrap I/O for left channel, negative high-side FET.
PVCCL
12
-
Power supply for left channel H-bridge, not internally connected to PVCCR
or AVCC.
VCLAMPL
13
- Internally generated voltage supply for left channel bootstrap capacitor.
PGNDL 14 - Power ground for left channel H-bridge.
PGNDR 15 - Power ground for right channel H-bridge.
VCLAMPR
16
- Internally generated voltage supply for right channel bootstrap capacitor.
PVCCR 17 - Power supply for right channel H-bridge, not connected to PVCCL or AVCC.
BSRN
18 I/O Bootstrap I/O for right channel, negative high-side FET.
ROUTN 19 O Class-D 1/2-H-bridge negative output for right channel.
ROUTP
20 O Class-D 1/2-H-bridge positive output for right channel.
BSRP
21 I/O Bootstrap I/O for right channel, positive high-side FET.
MUTE
SHUTDOWN
22
23
I
Mute signal for quick disable/enable of outputs (HIGH = outputs high-Z,
LOW = outputs enabled). TTL logic levels with compliance to AVCC.
I
Shutdown signal for IC (LOW = disabled, HIGH = operational). TTL logic
levels with compliance to AVCC.
VREG
24 O 4-V regulated output for use by internal cells, FADEB and MUTE pins only. Not
specified for driving other external circuitry.
DS2105 Ver1.1 Dec. 2009
2


Part Number EUA2105
Description 5-W Stereo Class-D Audio Amplifier
Maker Eutech Microelectronics
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EUA2105 Datasheet PDF






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