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PDF EUA5212 Data sheet ( Hoja de datos )
| Número de pieza | EUA5212 | |
| Descripción | Stereo Audio Power Amplifier | |
| Fabricantes | EuTech | |
| Logotipo |  |
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EUA5212
2-W Stereo Audio Power Amplifier
with Four Selectable Gain Settings
DESCRIPTOIN
The EUA5212 is a stereo audio power amplifier. When
driving 1 W into 8-Ω speakers, the EUA5212 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
6dB, 15.5dB, 21.5dB and 27.6dB are provided, while SE gain
is always configured as 0dB 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 EUA5212
automatically switches into SE mode when the SE/BTL input
is activated, and this reduces the gain to 0dB.
The EUA5212 consumes only 6 mA of supply current during
normal operation.
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
APPLICATIONS
z Notebook Computers
z Multimedia Monitors
z Digital Radios and Portable TVs
Block Diagram
DS5212 Ver 1.5 Nov. 2004
1
1 page  
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EUA5212
Absolute Maximum Ratings
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
4
V
2
3
V
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
EUA5212
Min. Typ. Max.
30
68
IIH High-level input current
VDD=5.5 V, VI = VDD
900
IIL Low-level input current
VDD=5.5 V, VI = 0V
900
Unit
mV
dB
µ
µ
IDD Supply current
BTL mode
SE mode
68
mA
34
IDD(SD) Supply current, shutdown mode
120 300 µA
DS5212 Ver 1.5 Nov. 2004
5
5 Page 
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EUA5212
Figure 27
Figure 28
Figure 29
Figure 30
Figure 31
DS5212 Ver 1.5 Nov. 2004
Figure 32
11
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet EUA5212.PDF ] | |
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