CS4525-CNZR(2008) Ver la hoja de datos (PDF) - Cirrus Logic
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CS4525-CNZR Datasheet PDF : 98 Pages
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CS4525
PWM POWER OUTPUT CHARACTERISTICS
Test Conditions (unless otherwise specified): AGND = DGND = PGND = 0 V; All voltages with respect to ground;
TA = 25°C; VD = 3.3 V; VP = 18 V; RL = 8 Ω for full-bridge, RL = 4 Ω for half-bridge and parallel full-bridge;
OutputDly[3:0] = 1111; PhaseShift = 1 for half-bridge, PhaseShift = 0 for full-bridge and parallel full-bridge;
Input Signal: full-scale 997 Hz sine wave through serial audio input port, 48 kHz sample rate; Capacitor values
connected to AFILTA, AFILTB, FILT+, VQ, VD_REG, and VA_REG as shown in Figure 1 on page 13; PWM Switch
Rate = 384 kHz; 10 Hz to 20 kHz Measurement Bandwidth; Performance measurements taken through AES17 fil-
ter.
Parameters
Symbol
Conditions
Min Typ Max Units
Power Output per Channel
Stereo Full-Bridge
Half-Bridge PO
Parallel Full-Bridge
THD+N < 10%
THD+N < 1%
THD+N < 10%
THD+N < 1%
THD+N < 10%
THD+N < 1%
-
15
-
W
-
12
-
W
-
7
-
W
-
5.5
-
W
-
30
-
W
-
23.5
-
W
Total Harmonic Distortion + Noise
Stereo Full-Bridge
Half-Bridge THD+N
Parallel Full-Bridge
PO = 1 W
PO = 0 dBFS = 11.3 W
PO = 1 W
PO = 0 dBFS = 5.0 W
PO = 1 W
PO = 0 dBFS = 22.6 W
-
0.05
-
%
-
0.10
-
%
-
0.12
-
%
-
0.28
-
%
-
0.1
-
%
-
0.3
-
%
Dynamic Range
Stereo Full-Bridge
Half-Bridge
DYR
Parallel Full-Bridge
PO = -60 dBFS, A-Weighted
PO = -60 dBFS, Unweighted
PO = -60 dBFS, A-Weighted
PO = -60 dBFS, Unweighted
PO = -60 dBFS, A-Weighted
PO = -60 dBFS, Unweighted
-
102
-
dB
-
99
-
dB
-
99
-
dB
-
96
-
dB
-
102
-
dB
-
99
-
dB
MOSFET On Resistance
RDS(ON)
Id = 0.5 A, TJ = 50°C
-
280
-
mΩ
Efficiency
h
PO = 2 x 15 W, RL = 8 Ω
-
85
-
%
Minimum Output Pulse Width
PWmin
No Load
-
50
-
ns
Rise Time of OUTx
tr
Resistive Load
-
20
-
ns
Fall Time of OUTx
tf
Resistive Load
-
20
-
ns
PWM Output Over-Current Error Trigger Point
TA = 25°C, OCREF = 16.2 kΩ
-
2.5
-
A
ICE
TA = 25°C, OCREF = 18 kΩ
-
2.1
-
A
TA = 25°C, OCREF = 22 kΩ
-
1.7
-
A
Junction Thermal Warning Trigger Point
TTW
-
105
-
°C
Junction Thermal Error Trigger Point
TTE
-
125
-
°C
VP Under-Voltage Error Falling Trigger Point VUVFALL
TA = 25°C
-
4.7
4.9
V
VP Under-Voltage Error Rising Trigger Point VUVRISE
TA = 25°C
-
4.95 5.4 V
20
DS726PP3
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