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CS42448 Datasheet(PDF) 23 Page - Cirrus Logic

Part # CS42448
Description  108 dB, 192 kHz 6-In, 8-Out CODEC
PDF  64 Pages
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Manufacturer  CIRRUS [Cirrus Logic]
Direct Link  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

CS42448 Datasheet(HTML) 23 Page - Cirrus Logic

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DS648F2
23
CS42448
DC ELECTRICAL CHARACTERISTICS
(AGND = 0 V; all voltages with respect to ground.)
Notes:
25. Normal operation is defined as RST = HI with a 997 Hz, 0 dBFS input to the DAC and AUX port, and a
1 kHz, -1 dB analog input to the ADC port sampled at the highest Fs for each speed mode. DAC outputs
are open, unless otherwise specified.
26. IDT measured with no external loading on pin 64 (SDA).
27. Valid with the recommended capacitor values on FILT+ and VQ. Increasing the capacitance will also
increase the PSRR.
28. Power-Down Mode is defined as RST = LO with all clocks and data lines held static and no analog input.
29. Guaranteed by design. The DC current draw represents the allowed current draw from the VQ pin due
to typical leakage through the electrolytic de-coupling capacitors.
DIGITAL INTERFACE SPECIFICATIONS & CHARACTERISTICS
Notes:
30. See “Digital I/O Pin Characteristics” on page 8 for serial and control port power rails.
Parameters
Symbol
Min
Typ
Max
Units
Normal Operation (Note 25)
Power Supply Current
VA = 5.0 V
VLS = VLC = VD = 3.3 V
(Note 26)
IA
IDT
-
-
80
60.6
-
-
mA
mA
Power Dissipation
All Supplies = 5 V
-
600
850
mW
Power Supply Rejection Ratio
1 kHz
(Note 27)
60 Hz
PSRR
-
-
60
40
-
-
dB
dB
Power-Down Mode (Note 28)
Power Dissipation
All Supplies = VA = 5 V
-
1.25
-
mW
VQ Characteristics
Nominal Voltage
Output Impedance
DC Current Source/Sink (Note 29)
-
-
-
0.5•VA
23
-
-
-
10
V
k
Ω
μA
FILT+_ADC Nominal Voltage
FILT+_DAC Nominal Voltage
-
-
VA
VA
-
-
V
V
Parameters (Note 30)
Symbol
Min
Typ
Max
Units
High-Level Output Voltage at Io=2 mA
Serial Port
Control Port
MUTEC
VOH
VLS-1.0
VLC-1.0
VA-1.0
-
-
-
-
-
-
V
V
V
Low-Level Output Voltage at Io=2 mA
Serial Port
Control Port
MUTEC
VOL
-
-
-
-
-
-
0.4
0.4
0.4
V
V
V
High-Level Input Voltage
Serial Port
Control Port
VIH
0.7xVLS
0.7xVLC
-
-
-
-
V
V
Low-Level Input Voltage
Serial Port
Control Port
VIL
-
-
-
-
0.2xVLS
0.2xVLC
V
V
Leakage Current
Iin
--
±10
μA
Input Capacitance (Note 22)
-
-
10
pF
MUTEC Drive Current
-
3
-
mA



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