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EUA5312 の電気的特性と機能

EUA5312のメーカーはEutech Microelectronicsです、この部品の機能は「2-W Stereo Audio Power Amplifier」です。


製品の詳細 ( Datasheet PDF )

部品番号 EUA5312
部品説明 2-W Stereo Audio Power Amplifier
メーカ Eutech Microelectronics
ロゴ Eutech Microelectronics ロゴ 




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EUA5312 Datasheet, EUA5312 PDF,ピン配置, 機能
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–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-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 pdf, ピン配列
PwinwwC.DoantafSihgeuetr4aUt.cioomns
Package
TSSOP-24 with a Thermal
Pad exposure on the bottom
of the package
EUA5312
Pin Configurations(Top View)
Pin Description
PIN PIN
BYPASS
11
GAIN0
2
GAIN1
3
GND
1,12
13,24
LHPIN
6
LIN 10
LLINEIN
LOUT+
LOUT-
5
4
9
PC-BEEP
14
HP/LINE
PVDD
RHPIN
RIN
RLINEIN
ROUT+
ROUT-
SHUTDOWN
17
7,18
20
8
23
21
16
22
SE/BTL
15
VDD 19
I/O DESCRIPTION
Tap to voltage divider for internal mid-supply bias generator
I Bit 0 of gain control
I Bit 1 of gain control
Ground connection for circuitry. Connected to thermal pad.
I Left channel headphone input, selected when SE/BTL is held high.
I
Common left input for fully differential input. AC ground for single-ended
inputs.
I Left channel line input, selected when SE/BTL is held low.
O Left channel positive output in BTL mode and positive output in SE mode.
O Left channel negative output in BTL mode and high-impedance in SE mode.
I
The input for PC Beep mode. PC-BEEP is enabled when a > 1-V (peak-to-peak)
square wave is input to PC-BEEP or PCB ENABLE is high.
HP/LINE is the input MUX control input. When the HP/LINE terminal is held
I high, the headphone inputs (LHPIN or RHPIN [6, 20]) are active. When the
HP/LINE terminal is held low, the line BTL inputs (LLINEIN or RLINEIN [5,
23]) are active.
I Power supply for output stage.
I Right channel headphone input, selected when SE/BTL is held high
I
Common right input for fully differential input. AC ground for single-ended
inputs.
I Right channel line input, selected when SE/BTL is held low.
O Right channel positive output in BTL mode and positive output in SE mode.
O Right channel negative output in BTL mode and high-impedance in SE mode.
I
When held low, this terminal place the entire device, except PC-BEEP detect
circuitry, in shutdown mode.
Input and output MUX control. When this terminal is held high, the LHPIN or
I RHPIN and SE output is selected. When this terminal is held low, the LLINEIN
or RLINEIN and BTL output are selected.
I
Analog VDD input supply. This terminal needs to be isolated from PVDD to
achieve highest performance.
DS5312 Ver 1.7 May. 2005
3


3Pages


EUA5312 電子部品, 半導体
EUA5312
Operating Characteristics, VDD = 5V, TA = 25°C, RL = 8, Gain =-2V/V, BTL mode
www.DataSheet4U.com
Symbol
Parameter
Conditions
EUA5312
Unit
Min. Typ. Max.
PO
THD+N
BOM
SNR
Output power
THD=1%, RL=4, f=1kHz
Total harmonic distortion plus
noise
PO=1W, f=20 Hz to 15 kHz
Maximum output power
bandwidth
THD=5%
Supply ripple
rejection
ratio
f =1kHz,
C(BYP)=0.47µF
BTL mode
Signal-to-noise ratio
1.9
0.75%
15
68
91
W
kHz
dB
dB
Vn
Noise output voltage
C(BYP)=0.47µF,
BTL mode
f= 20 kHz to 20 kHz SE mode
71
44
µVRMS
Typical Characteristics (Table of Graphs)
No Item
1 THD+N vs. Output Power
2 THD+N vs. Output Frequency
3 Output Noise Voltage vs. Frequency
4 Supply Ripple Rejection Ratio vs. Frequency
5 Crosstalk vs. Frequency
6 Shutdown Attenuation
7 Signal to noise ratio vs. Frequency
8 Closed Loop Response
9 Output Power vs. Load Resistance
10 Power Dissipation vs. Output Power
Figure
3,6,7,8,11,12,13,16, 17,18,20,23
4,5,9,10,14,15,19,22,
21
24,25
26,27
28
29
30,31,32,33
34,35
36,37
DS5312 Ver 1.7 May. 2005
6

6 Page



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共有リンク

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部品番号部品説明メーカ
EUA5312

2-W Stereo Audio Power Amplifier

Eutech Microelectronics
Eutech Microelectronics


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