CS4525(2008) 데이터 시트보기 (PDF) - Cirrus Logic
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CS4525 Datasheet PDF : 98 Pages
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CS4525
DC ELECTRICAL CHARACTERISTICS
AGND = DGND = PGND = 0 V; All voltages with respect to ground; PWM switch rate = 384 kHz; Unless otherwise
specified.
Parameters
Normal Operation (Note 18)
Power Supply Current
Power Dissipation
Power-Down Mode (Note 19)
Power Supply Current
VD_REG Characteristics
Nominal Voltage
DC current source
VA_REG Characteristics
Nominal Voltage
DC current source
VQ Characteristics
Nominal Voltage
Output Impedance
DC current source/sink
Filt+ Nominal Voltage
Power Supply Rejection Ratio (Note 21)
Min
Typ
Max Units
VD = 3.3 V -
54
-
mA
VD = 3.3 V -
180
-
mW
VD = 3.3 V -
2.8
-
mA
2.25
2.5
2.75
V
-
-
3
mA
2.25
2.5
2.75
V
-
-
1
mA
-
-
(Note 20) -
-
1 kHz -
60 Hz -
0.5*VA_REG
-
V
23
-
kΩ
-
10
µA
VA_REG
-
V
60
-
dB
40
-
dB
Notes:
18. Normal operation is defined as RST = HI.
19. Power-Down Mode is defined as RST = LOW with all input lines held static.
20. The DC current drain represents the allowed current from the VQ pin due to typical leakage through
the electrolytic de-coupling capacitors.
21. Valid with the recommended capacitor values on FILT+ and VQ. Increasing the capacitance will
increase the PSRR.
DIGITAL INTERFACE SPECIFICATIONS
AGND = DGND = PGND = 0 V; All voltages with respect to ground; Unless otherwise specified.
Parameters
Digital Interface Signal Characteristics (Note 22)
High-Level Input Voltage
Low-Level Input Voltage
High-Level Output Voltage
Low-Level Output Voltage
Input Leakage Current
Input Capacitance
PWM_SIGx Characteristics
High-Level PWM_SIGx Output Voltage
Low-Level PWM_SIGx Output Voltage
Io=2 mA
Io=2 mA
Io=2 mA
Io=2 mA
Symbol
VIH
VIL
VOH
VOL
Iin
VOHPS
VOLPS
Min
Max
0.75*VD_REG
-
-
0.20*VD_REG
0.90*VD
-
-
0.2
-
±10
-
8
0.90*VD_REG
-
-
0.2
Units
V
V
V
V
uA
pF
V
V
Notes: 22. Digital interface signals include all pins sourced from the VD supply as shown in “Digital I/O Pin
Characteristics” on page 12.
DS726PP3
25
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