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PDF EUA5312 Data sheet ( Hoja de datos )
| Número de pieza | EUA5312 | |
| Descripción | 2-W Stereo Audio Power Amplifier | |
| Fabricantes | Eutech Microelectronics | |
| Logotipo |  |
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EUA5312
www.DataSheet4U.com 2-W Stereo Audio Power Amplifier
with Four Selectable Gain Settings
DESCRIPTOIN
The EUA5312 is a stereo audio power amplifier. When
driving 1 W into 8–Ω speakers, the EUA5312 has less than
0.8% THD+N across its specified frequency range. Included
within this device is integrated depop circuitry that virtually
eliminates transients that cause noise in the speakers.
Amplifier gain is internally configured and controlled by way
of two terminals (GAIN0 and GAIN1). BTL gain settings of 6
dB, 10 dB, 15.6 dB, and 21.6 dB are provided, while SE
gain is always configured as 4.1 dB for headphone drive. An
internal input MUX allows two sets of stereo inputs to the
amplifier .The HP/LINE terminal allows the user to select
which MUX input is active, regardless of whether the
amplifier is in SE or BTL mode. In notebook applications,
where internal speakers are driven as BTL and the line outputs
(often headphone drive) are required to be SE, the EUA5312
automatically switches into SE mode when the SE/BTL input
is activated, and this reduces the gain to 4.1 dB.
The EUA5312 consumes only 6mA of supply current during
normal operation.
Block Diagram
FEATURES
z 2W per Channel Output Power Into 3-Ω Load
z Internal Gain Control, Which Eliminates
External Gain-Setting Components
z Input MUX Select Terminal
z PC-Beep Input
z Depop Circuitry Integrated
z Two Input Modes Allowable with Single-Ended or
Fully Differential Input
z Low Supply Current and Shutdown Current
z Thermal Shutdown Protection
z TSSOP-24 with Thermal Pad
z RoHS Compliant and 100% Lead (Pb)-Free
APPLICATIONS
z Notebook Computers
z Multimedia Monitors
z Digital Radios and Portable TVs
DS5312 Ver 1.7 May. 2005
1
1 page  
EUA5312
Absolute Maximum Ratings
www.DataSheet4U.com
Supply voltage, VDD------------------------------------------------------------------------------------------------ 6V
Input voltage, VI------------------------------------------------------------------------------ –0.3 V to VDD +0.3 V
Continuous total power dissipation---------------------------- internally limited (see Dissipation Rating Table)
Operating free-air temperature range, TA--------------------------------------------------------- –40 C to 85 C
Operating junction temperature range, TJ ------------------------------------------------------ - –40 C to 150 C
Storage temperature range, Tstg------------------------------------------------------------------ -- –65 C to 150 C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds----------------------------------------- 260 C
PACKAGE
PWP
Dissipation Rating Table
TA 25°C
DERATING FACTOR
3.76 W
33.2 mW/°C
TA = 70°C
2.4096 W
TA = 85°C
2.1 W
Recommended Operating Conditions
Supply voltage, VDD
High-level input voltage, VIH
Low-level input voltage, VIL
Operating free-air temperature, TA
SE/BTL
SHUTDOWN
SE/BTL
SHUTDOWN
Min Max Unit
4.5 5.5 V
4V
2
3V
0.8
-40 85 °C
Electrical Characteristics at Specified Free-air Temperature, VDD = 5V, TA = 25°C
Symbol
Parameter
VOO
PSRR
Output offset voltage
(measured differentially)
Power supply rejection ratio
Conditions
VI =0V, AV =2 V/V
VDD= 4 V to 5 V
EUA5312
Min. Typ. Max.
30
68
IIH High-level input current
VDD=5.5 V, VI = VDD
1
IIL Low-level input current
VDD=5.5 V, VI = 0V
1
Unit
mV
dB
µA
µA
IDD Supply current
BTL mode
SE mode
6 10
mA
35
IDD(SD) Supply current, shutdown mode
120 300 µA
DS5312 Ver 1.7 May. 2005
5
5 Page 
www.DataSheet4U.com
Figure 27
EUA5312
Figure 28
Figure 29
Figure 30
Figure 31
DS5312 Ver 1.7 May. 2005
Figure 32
11
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet EUA5312.PDF ] | |
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