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參數(shù)資料
| 型號(hào)： | TMPA205DS |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 2.45-W/Ch STEREO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER |
| 中文描述： | 2.45-W/Ch立體無(wú)濾波器D類音頻功率放大器 |
| 文件頁(yè)數(shù)： | 3/6頁(yè) |
| 文件大?。?/td> | 119K |
| 代理商： | TMPA205DS |
T
A
=25
。
C
(unless otherwise noted)
Copyright
2003, Tai-1 Microelectronics Corp.
3
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
│
V
OS
│
Output offset voltage (measured
differentially)
Power supply rejection ratio
V
I
=0V,A
V
=2, V
DD
=2.5V to 5.5V
25
mV
PSRR
V
DD
=2.5V to 5.5V
V
DD
=2.5V to 5.5V, V
IC
=V
DD
/2 to 0.5V
V
IC
=V
DD
/2 to V
DD
-0.8V
V
DD
=5.5V, V
I
=5.8V ( SDN1, SDN2 )
V
DD
=5.5V, V
I
=-0.3V ( SDN1, SDN2 )
V
DD
=5.5V, no load
V
DD
=3.6V, no load
V
DD
=2.5V, no load
V
( SDN )
=0.8V, V
DD
=2.5V to 5.5V
V
DD
=2.5V
V
DD
=3.6V
V
DD
=5.5V
V
DD
=2.5V to 5.5V
-75
-55
dB
CMRR
Common mode rejection ratio
-60
-55
dB
│
I
IH
│
│
I
IL
│
High-level input current
Low-level input current
1
1
4.6
4.2
3.6
0.5
290
165k
Ω
R
I
μ
A
μ
A
4
3.5
3
0.3
790
600
510
250
150k
Ω
R
I
I
Q
Quiescent current
mA
I
Q
(SD)
Shutdown current
μ
A
rDS(on) Static drain-source on-state resistance
m
Ω
f(sw)
Switching frequency
210
135k
Ω
R
I
kHz
V
V
Av
BTL Gain
V
DD
=2.5V to 5.5V
OPERATING CHARACTERISTICS
T
A
=25
。
C, Av=2, R
L
=8
Ω
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP MAX
UNIT
V
DD
=5V
V
DD
=3.6V
V
DD
=2.5V
V
DD
=5V
V
DD
=3.6V
V
DD
=2.5V
1.5
0.8
0.36
2.45
1.31
0.58
P
O
Output power/Ch
THD+N=10%,f=1kHz,
R
L
=8
Ω
W
P
O
Output power/Ch
THD+N=10%,f=1kHz,
R
L
=4
Ω
W
V
DD
=5V, P
O
=1W, R
L=
8
Ω
,
f=20~20kHz
V
DD
=3.6V, P
O
=0.6W, R
L=
8
Ω
,
f=20~20kHz
V
DD
=2.5V, P
O
=0.22W, R
L=
8
Ω
,
f=20~20kHz
V
DD
=5V, P
O
=1.7W, R
L=
4
Ω
,
f=20~20kHz
V
DD
=3.6V, P
O
=1W, R
L=
4
Ω
,
f=20~20kHz
V
DD
=2.5V, P
O
=0.4W, R
L=
4
Ω
,
f=20~20kHz
0.65%
0.77%
0.66%
0.65%
0.75%
0.88%
THD+N
Total harmonic distortion plus noise
SNR
Signal-to-noise ratio
V
DD
=5V, P
O
=1W, R
L=
8
Ω
83
dB
V
n
Output voltage noise
V
DD
=3.6V, f=20Hz to 20kHz
Inputs dc-grounded, No weighting
55
μ
V
RMS
Z
I
T
UP
Input impedance
Start-up time from shutdown
V
DD
=3.6V
27 30 33
20
k
Ω
ms
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