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STA339BWS 数据表(PDF) 14 Page - STMicroelectronics

部件名 STA339BWS
功能描述  FFX with 100-dB SNR and dynamic range
PDF  79 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STA339BWS 数据表(HTML) 14 Page - STMicroelectronics

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Electrical specifications
STA339BWS
14/79
DocID015276 Rev 8
3.5
Electrical specifications for the power section
The specifications given in this section are valid for the operating conditions: VCC = 18 V,
f = 1 kHz, fsw = 384 kHz, Tamb = 25 °C and RL = 8 , unless otherwise specified.
Table 7. Electrical specifications - power section
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Po
Output power BTL
THD = 1%
-
16
-
W
THD = 10%
-
20
-
Output power SE
THD = 1%,RL= 4 
-7
-
W
THD = 10%,RL= 4  -9
-
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 = 20 V
-
-
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)
2.5
3.0
-
A
ISCP
Short -circuit protection
RL = 0 
3.0
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 = 1 kHz
-
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 31).
When disabled refer to the ISCP.



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