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부품번호 | EUA6021A 기능 |
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기능 | Stereo Audio Power Amplifier | ||
제조업체 | Eutech Microelectronics | ||
로고 | |||
EUA6021A
2.5-W Stereo Audio Power Amplifier
with Advanced DC Volume Control
DESCRIPTOIN
The EUA6021A is a stereo audio power amplifier that drives
2.5 W/channel of continuous RMS power into a 4-Ω load.
Advanced dc volume control minimizes external components
and allows BTL (speaker) volume control and SE (headphone)
volume control.
The 20-pin DIP package allows for the use of a heatsink
which provides higher output power.
To ensure a smooth transition between active and shutdown
modes, a fade mode ramps the volume up and down.
FEATURES
z 2.5 W into 4-Ω Speakers With External Heatsink
z DC Volume Control with 2-dB
Step from -40dB to 20dB
-Fade Mode
- -85-dB Mute Mode
z Differential Inputs
z 1 A Shutdown Current (Typical)
z Headphone Mode
z RoHS Compliant and 100% Lead (Pb)-Free
APPLICATIONS
z LCD Monitors
DS6021A Ver 1.2 Jun. 2007
www.DataSheet.in
1
Pin Configurations
Package
DIP-20
EUA6021A
Pin Configurations(Top View)
Pin Description
PIN PIN I/O
DESCRIPTION
BYPASS
16 I Tap to voltage divider for internal midsupply bias generator used for analog reference
FADE
15
I
Places the amplifier in fade mode if a logic low is placed on this terminal; normal
operation if a logic high is placed on this terminal.
AGND
17 - Analog power supply ground
LIN-
7 I Left channel negative input for fully differential input.
LIN+
8 I Left channel positive input for fully differential input.
LOUT-
10 O Left channel negative audio output.
LOUT+
12 O Left channel positive audio output.
NC 13 - No connection
PGND
1,11 - Power ground
PVDD
RIN-
3,9 - Supply voltage terminal for power stage
5 I Right channel negative input for fully differential input.
RIN+
4 I Right channel positive input for fully differential input.
ROUT-
2 O Right channel negative audio output
ROUT+
20 O Right channel positive audio output
SE/BTL
19
I
Output control. When this terminal is high, SE outputs are selected. When this
terminal is low, BTL outputs are selected.
SHUTDOWN 14 I Places the amplifier in shutdown mode if a TTL logic low is placed on this terminal
VDD 6 - Supply voltage terminal
VOLUME 18 I Terminal for dc volume control. DC voltage range is 0 to VDD.
DS6021A Ver 1.2 Jun. 2007
www.DataSheet.in
4
4페이지 EUA6021A
Operating Characteristics, VDD =PVDD= 5V, TA = 25°C, RL = 4Ω, Gain =6 dB
Symbol
Parameter
Conditions
EUA6021A
Min. Typ. Max.
Unit
THD=1%, f=1kHz
PO Output power
THD=10%, f=1kHz,VDD=5V
1.85
2.5
THD+N
Total harmonic distortion plus
noise
PO=1W, RL=8Ω,f=1 kHz
<0.4%
VOH
High-level output voltage
RL =8Ω,Measured between output
and VDD
700
VOL
Low-level output voltage
RL =8Ω,Measured between output
and GND
400
V(Bypass) Bypass voltage (Nominally VDD/2)
BOM
Maximum output power
bandwidth
Measured at pin 17,No load,
VDD=5.5V
THD=5%
2.65 2.75 2.85
20
W
mV
mV
V
kHz
Supply ripple rejection ratio
f =1kHz,Gain=0 dB
C(BYP)=0.47µF
BTL mode
SE mode
-63
-57
dB
dB
Noise output voltage
f=20 Hz to 20 kHz,
Gain=0 dB,
C(BYP)=0.47µF,
BTL mode
ZI Input impedance (see Figure 25) VOLUME=5 V
36 µVRMS
14 k
DS6021A Ver 1.2 Jun. 2007
www.DataSheet.in
7
7페이지 | |||
구 성 | 총 16 페이지수 | ||
다운로드 | [ EUA6021A.PDF 데이터시트 ] |
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부품번호 | 상세설명 및 기능 | 제조사 |
EUA6021A | Stereo Audio Power Amplifier | Eutech Microelectronics |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |