Datasheet

STA333W Electrical specification
Doc ID 13365 Rev 2 13/49
V
CC
Supply voltage - 4.5 - 20 V
I
VCC
Supply current from V
CC
in
power down
PWRDN = 0 30 60 200 µA
Supply current from V
CC
in
operation
PCM input signal = -60 dBfs
Switching frequency =
384 kHz
No LC filters
- 3050mA
I
VDD_DIG
Supply current for DDX
processing (reference only)
Internal clock = 49.152 MHz 10 30 50 mA
Supply current in standby - 8 11 25 mA
I
LIM
Overcurrent limit Non-linear output
(1)
2.23.54.3A
I
SCP
Short-circuit protection High-impedance output
(2)
2.73.85.0A
V
UVP
Undervoltage protection
threshold
- - 3.5 4.3 V
t
min
Output minimum pulse
width
No load 20 30 60 ns
THD+N
Total harmonic distortion
and noise
DXX stereo mode, Po = 1 W,
f = 1 kHz
- 0.05 0.2 %
DR Dynamic range - - 100 - dB
SNR
Signal to noise ratio in
ternary mode
A-weighted - 100 -
dB
Signal to noise ratio in
binary mode
A-weighted - 90 -
PSRR Power supply rejection ratio
DXX stereo mode, < 5 kHz,
V
RIPPLE
= 1 V RMS
audio input = dither only
-80-dB
X
TA LK
Crosstalk
DXX stereo mode, < 5 kHz,
One channel driven at 1 W
the other channel measured
-80-dB
η
Peak efficiency
in DXX mode
Po = 2 x 20 W into 8 Ω -90-%
1. The I
LIM
data is for 1 channel of BTL configuration, thus, 2 * I
LIM
drives the 2-channel BTL configuration.
The current limit is active when OCRB = 0 (see Table 23: Overcurrent warning detect adjustment bypass
on page 28. When OCRB = 1 then I
SC
applies.
2. The I
SCP
current limit data is for 1 channel of BTL configuration, thus, 2 * I
SCP
drives the 2-channel BTL
configuration. The short-circuit current is applicable when OCRB = 1 (see Table 23: Overcurrent warning
detect adjustment bypass on page 28.
Table 7. Electrical specifications for power section (continued)
Symbol Parameter Conditions Min Typ Max Unit