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STA335BW Datenblatt(PDF) 12 Page - STMicroelectronics

Teilenummer STA335BW
Bauteilbeschribung  2.1 channels high efficiency digital audio system
PDF  54 Pages
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA335BW Datenblatt(HTML) 12 Page - STMicroelectronics

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Electrical specifications
STA335BW
12/54
Icc
Supply current from Vcc in
Power Down
Power Down=0
0.1
1
mA
Supply current from Vcc in
Tri-state
Tristate=0
15
mA
Supply current from Vcc in
operation
PCM Input signal = -60 dBFS.
Switching frequency = 384 KHz No
LC filters
40
mA
Supply current DDX processing
(reference only)
Internal clock = 49.152 MHz
On Vdd dig
80
mA
Ilim
Overcurrent limit
3
3.8
A
Isc
Short circuit protection
3.8
4.8
A
UVL
Under voltage protection
threshold
3.5
4.3
V
tmin
Output minimum pulse width
No Load
50
80
150
ns
Po
Output Power BTL
THD=1%, f=1 KHz
16
W
THD=10%, f=1 KHz
20
Output Power SE
THD=1%, f=1 KHz, 8
Ω Vcc =24 V
7
W
THD=10%, f=1 KHz, 8
Ω Vcc =24 V
9
Output Power BTL
RL = 16 Ω
Vcc=24 V; f = 1 KHz
THD=1%
12
W
THD=10%
15
Output Power BTL
RL = 4 Ω
Vcc = 18 V; f =1 KHz
THD=1%
8
W
THD=10%
10
SNR
Signal to noise ratio, ternary
mode
A-Weighted
100
dB
Signal to noise ratio binary
mode
90
PSSR
Power Supply Rejection Ratio
Stereo DDX Mode, <5 KHz
VRIPPLE = 1 Vrms
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
Stereo DDX 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 10 W+ 1 x 20 W, (4
Ω, 8 Ω)87
1.
Refer to Figure 3: Test circuit 1.
2.
Refer to Figure 4: Test circuit 2.
Table 5.
Electrical characteristics power section (continued)
VCC = 18V, fsw = 384KHz, Tamb = 25°C, RL = 8Ω unless otherwise specified.
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit



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