CS42L50 Datasheet, PDF (10/48 Pages) Cirrus Logic – Low Voltage, Stereo CODEC with headphone Amp

CS42L50
POWER AND THERMAL CHARACTERISTICS (GND = 0 V; All voltages with respect to
ground. All measurements taken with all zeros input and open outputs, unless otherwise specified.)
Parameters
Symbol Min
Power Supplies
Power Supply Current-
Normal Operation
Power Supply Current-
Normal Operation
Power Supply Current-
Power Down Mode (Note 13)
VA=1.8 V
I_A
-
VA_HP=1.8 V I_{A_HP}
-
VL=1.8 V I_{D_L}
-
VA=3.0 V
I_A
-
VA_HP=3.0 V I_{A_HP}
-
VL=3.0 V I_{D_L}
-
All Supplies=1.8 V
-
All Supplies =3.0V
-
Total Power Dissipation-
All Supplies=1.8 V
-
Normal Operation
All Supplies=3.0 V
-
Maximum Headphone Power Dissipation
(1 kHz full-scale sine wave
VA=1.8 V
-
into 16 ohm load)
VA=3.0 V
-
Package Thermal Resistance
Power Supply Rejection Ratio (Note 14)
θ_JA
-
(1 kHz) PSRR
-
(60 Hz)
-
Typ
13.3
1.5
154
20
1.5
270
150
350
27
65
15
26
55
60
40
Max
Units
-
mA
-
mA
-
µA
-
mA
-
mA
-
µA
-
µA
-
µA
TBD
mW
TBD
mW
-
mW
-
mW
-
°C/Watt
-
dB
-
dB
Notes: 13. Power Down Mode is defined as RST = LO with all clocks and data lines held static.
14. Valid with the recommended capacitor values on FILT+_ADC, FILT+_DAC, VQ_DAC, and VQ_ADC as
shown in Figure 4. Increasing the capacitance will also increase the PSRR. Note that care should be
taken when selecting capacitor type, as any leakage current in excess of 1.0 µA will cause degradation
in analog performance. A small ceramic capacitor in parallel with a larger electrolytic is recommended.
10
DS544PP1