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STA333ML 数据表(PDF) 9 Page - STMicroelectronics

部件名 STA333ML
功能描述  2-channel microless high-efficiency digital audio system Sound Terminal
PDF  23 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STA333ML 数据表(HTML) 9 Page - STMicroelectronics

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DocID13177 Rev 8
9/23
STA333ML
Electrical specifications
23
tf
Fall time
Resistive load Figure 4
-8
10
ns
Ivcc
Supply current from
VCC in power down
PWRDN = 0
0.03
0.06
0.2
mA
Supply current from
VCC in operation
PCM Input signal =
-60 dBFs.
Switching frequency =
384 kHz
No LC filters
-30
50
mA
Ivdd_dig
Supply current DDX
processing (reference
only)
Internal clock =
49.152 MHz
10
30
50
mA
Supply current in
standby
-8
11
25
mA
ISCP
short-circuit protection
Hi-Z output
2.7
3.8
5.0
A
UVL
Undervoltage
protection threshold
--
3.5
4.3
V
tmin
Output minimum pulse
width
No load
20
30
60
ns
DR
Dynamic range
-
-
100
-
dB
SNR
Signal-to-noise ratio
A-weighted
-
100
-
dB
THD+N
Total harmonic
distortion + noise
Po = 1 W, f = 1 kHz
-
0.05
0.2
%
PSRR
Power supply rejection
ratio
DDX stereo, <5 kHz
Vripple = 1 V RMS
Audio input = dither only
-80
-
dB
XTALK
Crosstalk
DDX stereo, <5 kHz
One chan. driven at 1 W
other channel measured
-80
-
dB
Peak efficiency, DDX
mode
Po = 2 x 20 W into
8
-90
-
%
fsw
PWM carrier frequency
switching
-
-
384
-
kHz
Table 7. Electrical specifications for power section (continued)
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit



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