sta335bw STMicroelectronics, sta335bw Datasheet - Page 12

• Manufacturer Part Number: sta335bw
• Description: 2.1 Channels High Efficiency Digital Audio System
• Manufacturer: STMicroelectronics

Electrical specifications
Table 5.
1. Refer to
2. Refer to
12/54
Symbol
THD+N
PSSR
X
SNR
UVL
Ilim
t
Isc
Po
TALK
I
min
cc
η
Figure 3: Test circuit
Figure 4: Test circuit
Supply current from Vcc in
Power Down
Supply current from Vcc in
Tri-state
Supply current from Vcc in
operation
Supply current DDX processing
(reference only)
Overcurrent limit
Under voltage protection
threshold
Output minimum pulse width
Output Power BTL
Output Power SE
Output Power BTL
Output Power BTL
Signal to noise ratio, ternary
mode
Signal to noise ratio binary
mode
Power Supply Rejection Ratio
Total Harmonic
Distortion+Noise
Crosstalk
Peak Efficiency, DDX Mode
Peak Efficiency,Binary Modes
Short circuit protection
Electrical characteristics power section (continued)
V
CC
= 18V, f
Parameter
sw
1.
2.
= 384KHz, T
Power Down=0
Tristate=0
PCM Input signal = -60 dBFS.
Switching frequency = 384 KHz No
LC filters
Internal clock = 49.152 MHz
On Vdd dig
No Load
THD=1%, f=1 KHz
THD=10%, f=1 KHz
THD=1%, f=1 KHz, 8 Ω Vcc =24 V
THD=10%, f=1 KHz, 8 Ω Vcc =24 V
R
Vcc=24 V; f = 1 KHz
R
Vcc = 18 V; f =1 KHz
A-Weighted
Stereo DDX Mode, <5 KHz
V
Audio Input = Dither Only
DDX Stereo Mode, Po=1 W
f = 1 KHz
Stereo DDX Mode, <5 KHz
One Channel Driven @ 1 W
Other Channel Measured
Po = 2 x 20 W, 8 Ω
Po = 2 x 10 W+ 1 x 20 W, (4 Ω, 8 Ω)
amb
RIPPLE
L
L
= 16 Ω
= 4 Ω
= 25°C, R
= 1 Vrms
Conditions
L
= 8Ω unless otherwise specified.
THD=1%
THD=10%
THD=1%
THD=10%
Min.
3.8
50
3
Typ.
100
0.1
3.8
4.8
3.5
0.2
15
40
80
80
16
20
12
15
10
90
80
80
90
87
7
9
8
Max.
150
4.3
STA335BW
1
Unit
mA
mA
mA
mA
dB
dB
dB
ns
W
W
W
W
%
%
A
V
A