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STA559BW Datasheet(PDF) 13 Page - STMicroelectronics

Part # STA559BW
Description  Selectable 32- to 192-kHz input sample rates
PDF  67 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA559BW Datasheet(HTML) 13 Page - STMicroelectronics

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DocID18190 Rev 2
13/67
STA559BW
Electrical specifications
67
3.5
Electrical specifications for the power section
The specifications given in this section are valid for the operating conditions: VCC =5V,
f= 1kHz, fsw = 384 kHz, Tamb = 25 °C and RL = 4 , unless otherwise specified.
Table 7. Electrical specifications - power section
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Po
Output power BTL
THD = 1%RL= 2 
-4.2
-
W
THD = 10%RL= 2 
-5.3
-
Output power SE
THD = 1%,RL= 2 
-1
-
W
THD = 10%,RL= 2  -1.3
-
RdsON
Power P-channel or N-channel MOSFET
ld = 0.75 A
-
-
250
m

gP
Power P-channel RdsON matching
ld = 0.75 A
-
100
-
%
gN
Power N-channel RdsON matching
ld = 0.75 A
-
100
-
%
Idss
Power P-channel/N-channel leakage
Vcc=9V
-
-
1
A
tr
Rise time
Resistive load,
see Figure 3 below
-
-
10
ns
tf
Fall time
-
-
10
ns
IVCC
Supply current from VCC in power down
PWRDN = 0
-
0.3
-
A
Supply current from VCC in operation
PWRDN = 1
-
15
-
mA
IVDD
Supply current FFX processing
Internal clock =
49.152 MHz
-55
-
mA
ILIM
Overcurrent limit
(1)
2.2
3.0
-
A
ISCP
Short -circuit protection
RL = 0 
2.7
3.6
-
A
VUVP
Undervoltage protection
-
-
-
4.3
V
tmin
Output minimum pulse width
No load
20
40
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
THD+N
Total harmonic distortion + noise
FFX stereo mode,
Po = 1 W
f=1kHz
-0.2
-%
XTALK
Crosstalk
FFX stereo mode,
<5 kHz
One channel driven
at 1 W, other channel
measured
-80
-
dB
Peak efficiency, FFX mode
Po = 2 x 20 W
into 8
-90
-
%
Peak efficiency, binary modes
Po = 2 x 9 W into 4
+ 1 x 20 W into 8
-87
-
1.
Limit the current if overcurrent warning detect adjustment bypass is enabled (register bit CONFC.OCRB on page 28).
When disabled refer to ISCP.



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