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STA333BW 데이터시트(PDF) 14 Page - STMicroelectronics

부품명 STA333BW
상세설명  2.1-channel high-efficiency digital audio system
PDF  64 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA333BW 데이터시트(HTML) 14 Page - STMicroelectronics

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Electrical specifications
STA333BW
14/64
IVCC
Supply current from Vcc in power
down
PWRDN = 0
0.1
1
mA
Supply current from Vcc in
operation
PCM input signal = -60 dBFS,
Switching frequency = 384 kHz
No LC filters
30
mA
IVDD
Supply current DDX processing
(reference only)
Internal clock = 49.152 MHz
80
mA
Ilim
Overcurrent limit
(2)
2.2
3.0
4.0
A
Isc
Short circuit protection
Hi-Z output
2.7
3.6
A
UVL
Under-voltage protection
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, ternary
mode
A-Weighted
100
dB
Signal to noise ratio binary mode
90
dB
PSSR
Power supply rejection ratio
DDX stereo mode, <5 kHz
VRIPPLE = 1 V RMS
Audio input = dither only
80
dB
THD+N
Total harmonic distortion + noise
DDX stereo mode, Po=1 W
f = 1 kHz
0.2
%
XTALK
Crosstalk
DDX stereo mode, <5 kHz
One channel driven @ 1 W
Other channel measured
80
dB
η
Peak efficiency, DDX mode
Po = 2 x 20 W, 8
Ω
90
%
Peak efficiency,binary modes
Po = 2 x 9 W @ 4
Ω, 1 x 20 W
@ 8
Ω
87
1.
Refer to Figure 4: Test circuit 1.
2.
Limit current if the register (OCRB par 6.1.3.3) overcurrent warning detect adjustment bypass is enabled. When disabled
refer to the Isc.
Table 6.
Electrical characteristics power section (continued)
VCC= 18 V, f = 1 kHz, fsw = 384 kHz, Tamb = 25 °C, RL = 8 Ω unless otherwise specified
Symbol
Parameter
Conditions
Min
Typ
Max
Unit



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