STA381BWSTR STMicroelectronics, STA381BWSTR Datasheet - Page 23

• Manufacturer Part Number: STA381BWSTR
• Description: Audio DSPs Sound Terminal 2.1 High EFF Dig Audio
• Manufacturer: STMicroelectronics

Specifications of STA381BWSTR

• Product Category: Audio DSPs
• Rohs: yes
• Operating Supply Voltage: 4.5 V to 25.5 V
• Operating Temperature Range: 0 C to + 150 C
• Mounting Style: SMD/SMT
• Package / Case: VQFN-48
• Snr: 100 dB

STA381BWS
3.5
Table 7.
1. The related THD can be defined through appropriate DRC settings (see section:
2. Refer to
Symbol
THD+N Total harmonic distortion + noise
R
X
SNR
UVL
Idss
I
I
Ilim
t
DR
dsON
gN
Po
gP
LDT
TALK
min
vcc
t
η
t
r
f
Output power BTL
Output power SE
Output power SE R
Power Pchannel/Nchannel MOSFET
Power Pchannel R
Power Nchannel R
Power Pchannel/Nchannel leakage
Low current dead time (static)
Rise time
Fall time
Supply current from Vcc in power-down PWRDN = 0
Supply current from Vcc in operation
Overcurrent limit
Undervoltage protection
Output minimum pulse width
Dynamic range
Signal-to-noise ratio, ternary mode
Signal-to-noise ratio binary mode
Crosstalk
Peak efficiency, FFX mode
Figure 3: Test
Electrical specifications for the power section
The specifications given in this section are valid for the operating conditions: V
f = 1 kHz, f
Electrical specifications - power section
circuit.
Parameter
sw
= 384 kHz, T
dsON
dsON
L
= 4 Ω
matching
matching
amb
Doc ID 018937 Rev 6
= 25° C and R
Digital limited
Digital limited
Digital limited
l
l
l
Resistive load
Resistive load
Resistive load
PCM Input signal = -60 dBfs,
Switching frequency = 384 kHz,
No LC filters
No load
A-weighted
A-weighted
FFX stereo mode, Po = 1 W,
f = 1 kHz,
FFX stereo mode,
<5 kHz, one channel driven at
1 W and other channel
measured
Po = 2 x 20 W
into 8 Ω
d
d
d
= 1.5 A
= 1.5 A
= 1.5 A
Conditions
L
(1)
(1)
(1)
= 8 Ω, unless otherwise specified.
(2)
(2)
(2)
4.3:
STCompressorTM)
Electrical specifications
Min
95
95
20
4
Typ
120
100
100
0.1
3.5
0.2
90
20
10
10
52
30
80
90
5
9
8
5
CC
Max Unit
= 18 V,
4.3
6.5
10
15
18
18
60
60
1
23/171
mΩ
mA
µA
µA
dB
dB
dB
dB
ns
ns
ns
ns
W
%
%
%
%
A
V