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STA333W 数据表(PDF) 13 Page - STMicroelectronics

部件名 STA333W
功能描述  2-channel high-efficiency digital audio system Sound Terminal?
PDF  49 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STA333W 数据表(HTML) 13 Page - STMicroelectronics

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STA333W
Electrical specification
Doc ID 13365 Rev 2
13/49
VCC
Supply voltage
-
4.5
-
20
V
IVCC
Supply current from VCC in
power down
PWRDN = 0
30
60
200
µA
Supply current from VCC in
operation
PCM input signal = -60 dBfs
Switching frequency =
384 kHz
No LC filters
-
3050mA
IVDD_DIG
Supply current for DDX
processing (reference only)
Internal clock = 49.152 MHz
10
30
50
mA
Supply current in standby
-
8
11
25
mA
ILIM
Overcurrent limit
Non-linear output (1)
2.23.5
4.3A
ISCP
Short-circuit protection
High-impedance output (2)
2.73.8
5.0A
VUVP
Undervoltage protection
threshold
-
-
3.5
4.3
V
tmin
Output minimum pulse
width
No load
20
30
60
ns
THD+N
Total harmonic distortion
and noise
DXX stereo mode, Po = 1 W,
f = 1 kHz
-
0.05
0.2
%
DR
Dynamic range
-
-
100
-
dB
SNR
Signal to noise ratio in
ternary mode
A-weighted
-
100
-
dB
Signal to noise ratio in
binary mode
A-weighted
-
90
-
PSRR
Power supply rejection ratio
DXX stereo mode, < 5 kHz,
VRIPPLE = 1 V RMS
audio input = dither only
-80
-
dB
XTALK
Crosstalk
DXX stereo mode, < 5 kHz,
One channel driven at 1 W
the other channel measured
-80
-
dB
η
Peak efficiency
in DXX mode
Po = 2 x 20 W into 8
Ω
-90
-
%
1.
The ILIM data is for 1 channel of BTL configuration, thus, 2 * ILIM drives the 2-channel BTL configuration.
The current limit is active when OCRB = 0 (see Table 23: Overcurrent warning detect adjustment bypass
on page 28. When OCRB = 1 then ISC applies.
2.
The ISCP current limit data is for 1 channel of BTL configuration, thus, 2 * ISCP drives the 2-channel BTL
configuration. The short-circuit current is applicable when OCRB = 1 (see Table 23: Overcurrent warning
detect adjustment bypass on page 28.
Table 7.
Electrical specifications for power section (continued)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit



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