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STA335BWS 数据表(PDF) 16 Page - STMicroelectronics

部件名 STA335BWS
功能描述  2.1-channel high-efficiency digital audio system
PDF  68 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STA335BWS 数据表(HTML) 16 Page - STMicroelectronics

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Electrical specifications
STA335BWS
16/68
IHDT
High current dead time
(dynamic)
I
load = 1.5 A
(1)
15
30
ns
tr
Rise time
Resistive load (1)
10
18
ns
tf
Fall time
Resistive load (1)
10
18
ns
Vcc
Supply voltage operating
voltage
4.5
21.5
V
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
52
60
mA
Ivdd
Supply current DDX processing
(reference only)
Internal clock = 49.152 MHz
55
70
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 into 8
Ω
90
%
Peak efficiency, binary modes
Po = 2 x 9 W into 4
Ω,
1 x 20 W into 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 Isc.
Table 6.
Electrical specifications - power section (continued)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit



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