CRD4525-Q1 Cirrus Logic Inc, CRD4525-Q1 Datasheet - Page 23

• Manufacturer Part Number: CRD4525-Q1
• Description: REFERENCE BOARD FOR CS4525 PWM
• Manufacturer: Cirrus Logic Inc
• Series: Popguard®r

Specifications of CRD4525-Q1

• Amplifier Type: Class D
• Output Type: 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 15W x 2 @ 8 Ohm
• Voltage - Supply: 12 V ~ 18 V
• Operating Temperature: 0°C ~ 70°C
• Board Type: Fully Populated
• Utilized Ic / Part: CS4525
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 598-1586

DS726PP3
XTI SWITCHING SPECIFICATIONS
Notes:
SYS_CLK SWITCHING SPECIFICATIONS
AGND = DGND = PGND = 0 V; T
C
Notes:
PWM_SIGX SWITCHING SPECIFICATIONS
AGND = DGND = PGND = 0 V; T
External Crystal Operating Frequency
(Notes 15, 16)
XTI Duty Cycle
External Clock Operating Frequency
(Note 16)
Rising Edge RST to start of SYS_CLK
SYS_CLK Period
SYS_CLK Duty Cycle
SYS_CLK high time
SYS_CLK low time
Rise Time of PWM_SIGx
Fall Time of PWM_SIGx
L
= 20 pF.
15. External crystal oscillator mode only available in Software Mode.
16. ClkFreq[1:0] = ‘10’ mode only in Software Mode. See
for software mode configuration settings. See
configuration settings.
Parameter
Parameter
Parameter
PWM_SIGx
SYS_CLK
(output)
RST
___
A
A
= 25°C; VD = 3.3 V; Input: Logic 0 = DGND; Logic 1 = VD, SYS_CLK Output:
= 25°C; VD = 3.3 V; Load = 10 pF.
Figure 9. SYS_CLK Timing from Reset
ClkFreq[1:0] = ‘00’
ClkFreq[1:0] = ‘01’
ClkFreq[1:0] = ‘10’
ClkFreq[1:0] = ‘00’
ClkFreq[1:0] = ‘01’
ClkFreq[1:0] = ‘10’
Figure 10. PWM_SIGX Timing
t
sclko
t
r
Symbol
Symbol
Symbol
F
F
t
t
t
t
sclko
sclki
clkih
CLK
CLK
clkil
t
t
r
f
“System Clocking” on page 54
t
f
“Clock Frequency (ClkFreq[1:0])” on page 69
18.240
24.330
26.730
18.240
24.330
26.730
37.04
16.67
16.67
Min
Min
Min
45
45
-
-
-
1024*t
18.432
24.576
27.000
18.432
24.576
27.000
Typ
Typ
Typ
2.1
1.4
50
50
-
-
-
sclki
for hardware mode
18.617
24.822
27.270
18.617
24.822
27.270
54.25
29.84
29.84
Max
Max
Max
55
55
-
-
-
CS4525
Unit
Unit
Unit
MHz
MHz
MHz
MHz
MHz
MHz
ns
ns
ns
ns
ns
%
%
23