cs4412a Cirrus Logic, Inc., cs4412a Datasheet - Page 6

• Manufacturer Part Number: cs4412a
• Description: 30w Quad Half-bridge Digital Amplifier Power Stage
• Manufacturer: Cirrus Logic, Inc.

6
PWM POWER OUTPUT CHARACTERISTICS
Test Conditions (unless otherwise specified): GND = PGND = 0 V; All voltages with respect to ground; T
VD = 3.3 V; VP = 18 V; R
Rate = 384 kHz; 10 Hz to 20 kHz Measurement Bandwidth; Input source is CS4525 PWM_SIG outputs; Perfor-
mance measurements taken with a full-scale 997 Hz sine wave, an AES17 measurement filter; Half-Bridge mea-
surements taken through the Half-Bridge Output Filter shown in
Bridge measurements taken through the Full-Bridge Output Filter shown in
Power Output per Channel
Total Harmonic Distortion + Noise
Dynamic Range
MOSFET On Resistance
Efficiency
Minimum Output Pulse Width
Rise Time of OUTx
Fall Time of OUTx
PWM Output Over-Current Error Trigger Point
Junction Thermal Warning Trigger Point
Junction Thermal Error Trigger Point
VP Under-Voltage Error Falling Trigger Point
VP Under-Voltage Error Rising Trigger Point
Parameters
Parallel Full-Bridge
Parallel Full-Bridge
Parallel Full-Bridge
L
Stereo Full-Bridge
Stereo Full-Bridge
Stereo Full-Bridge
= 8 Ω for full-bridge, R
Half-Bridge
Half-Bridge
Half-Bridge
Symbol
V
V
R
THD+N
PW
UVFALL
UVRISE
DYR
DS(ON)
T
T
I
P
CE
h
t
TW
t
TE
r
O
f
min
L
= 4 Ω for half-bridge and parallel full-bridge; PWM Switch
T
P
P
P
P
P
P
T
T
A
O
O
O
A
A
O
O
O
P
= 25°C, OCREF = 16.2 kΩ
P
P
P
= 25°C, OCREF = 18 kΩ
= 25°C, OCREF = 22 kΩ
O
= -60 dBFS, A-Weighted
= -60 dBFS, Unweighted
= -60 dBFS, A-Weighted
= -60 dBFS, Unweighted
= -60 dBFS, A-Weighted
= -60 dBFS, Unweighted
I
O
O
d
O
= 2 x 15 W, R
= 0.5 A, T
= 0 dBFS = 22.6 W
= 0 dBFS = 11.3 W
Resistive Load
Resistive Load
THD+N < 10%
THD+N < 10%
THD+N < 10%
= 0 dBFS = 5.0 W
THD+N < 1%
THD+N < 1%
THD+N < 1%
Conditions
T
T
P
P
P
No Load
Figure
A
A
O
O
O
= 25°C
= 25°C
= 1 W
= 1 W
= 1 W
J
= 50°C
5; Stereo Full-Bridge and Parallel Full-
L
= 8 Ω
Figure
6;.
Min
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Typ
23.5
0.08
0.10
0.12
0.19
4.95
102
102
102
280
105
125
7.5
5.5
0.1
0.3
2.5
2.1
1.7
4.7
15
12
30
99
97
99
85
25
10
5
CS4412A
Max Units
4.9
5.4
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
A
DS786A2
= 25°C;
mΩ
dB
dB
dB
dB
dB
dB
ns
ns
ns
°C
°C
W
W
W
W
W
W
%
%
%
%
%
%
%
A
A
A
V
V