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Eutech Microelectronics

EUA2313 Datasheet Preview

EUA2313 Datasheet

6-W Stereo Class-D Audio Power Amplifier

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EUA2313
6-W Stereo Class-D Audio Power
Amplifier with Speaker Protection
DESCRIPTION
The EUA2313 is a high efficiency, 2 channel bridged-tied
load (BTL), class-D audio power amplifier. Operating from
a 10V power supply, EUA2313 is capable of delivering
6W/ channel of continuous output power to a 8load with
10% THD+N. The EUA2313 features a differential input
architecture offering improved noise immunity over a
single-ended (SE) input amplifier. Amplifier gain is
internally configured and can be selected to 20, 26, 32 or
36dB utilizing the G0 and G1 gain select pins. Advanced
EMI suppression technology enables the use of
inexpensive ferrite bead at the outputs while meeting EMC
requirements.
The speaker protection circuitry is integrated into
EUA2313 to limit the amount of current through the
speaker. Meanwhile, the AGC detects output signal clip
due to the over level input signal and suppresses it
automatically. The EUA2313 also features short-circuit and
thermal protection preventing the device from being
damaged during a fault condition. The EUA2313 is
available in thermally efficient 28-pin TSSOP package.
FEATURES
Wide Supply Voltage: 8V to 26V
Unique Modulation Scheme Reduces EMI Emission
6-W/ch into an 8-Load From a 10-V Supply
12W into a 4-Mono Load From a 10-V Supply
87% Efficient Class-D Operation Eliminates
Need for Heat Sinks
Four Selectable, Gain Settings
Differential Inputs
Speaker Protection Circuitry
Auto Gain Control
Thermal and Short-Circuit Protection
28-pin TSSOP Package with Thermal Pad
RoHS compliant and 100% lead(Pb)-free
Halogen-Free
APPLICATIONS
Televisions
Typical Application Circuit
DS2313 Ver1.1 May 2012
Figure1. Simplified Application Schematic
1




Eutech Microelectronics

EUA2313 Datasheet Preview

EUA2313 Datasheet

6-W Stereo Class-D Audio Power Amplifier

No Preview Available !

Pin Configurations
Package Type
Tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com
EUA2313
Pin Configurations
TSSOP-28 (EP)
Pin Description
PIN
SD
FAULT
LINP
TSSOP-28 (EP)
1
2
3
I/O/P
I
O
I
DESCRIPTION
Shutdown logic input for audio amp (LOW = outputs Hi-Z,
HIGH = outputs enabled). TTL logic levels with compliance to AVCC.
Open drain output used to display short circuit or dc detect fault status.
Voltage compliant to AVCC.
Positive audio input for left channel.
LINN 4 I Negative audio input for left channel.
GAIN0
5
I
Gain select least significant bit. TTL logic levels with compliance to
AVCC.
GAIN1
6
I
Gain select most significant bit. TTL logic levels with compliance to
AVCC.
AVCC 7 P Analog supply.
AGND 8 P Analog signal ground. Connect to the thermal pad.
GVDD
9
O
High-side FET gate drive supply. Nominal voltage is 4.5V. Also should be
used as supply for PLIMIT function.
PLIMIT
10
I
Power limit level adjust. Connect a resistor divider from GVDD to GND to
set power limit. Connect directly to GVDD for no power limit.
RINN 11 I Negative audio input for right channel.
RINP
12 I Positive audio input for right channel.
NC 13 P Not connected.
PBTL
PVCCR
BSPR
14
15,16
17
I Parallel BTL mode switch.
P
Power supply for right channel H-bridge. Right channel and left channel
power supply inputs are connect internally.
I Bootstrap I/O for right channel, positive high-side FET.
OUTPR 18 O Class-D H-bridge positive output for right channel.
PGND
19
Power ground for the H-bridges.
OUTNR 20 O Class-D H-bridge negative output for right channel.
BSNR 21 I Bootstrap I/O for right channel, negative high-side FET.
DS2313 Ver1.1 May 2012
2


Part Number EUA2313
Description 6-W Stereo Class-D Audio Power Amplifier
Maker Eutech Microelectronics
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EUA2313 Datasheet PDF






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