CS42L50 datasheet(10/48 Pages) CIRRUS

10 / 48 page

CS42L50

DS544PP1

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.)

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.

Parameters

Symbol

Min

Typ

Max

Units

Power Supplies

Power Supply Current-

VA=1.8 V

Normal Operation

VA_HP=1.8 V

VL=1.8 V

IA_HP

ID_L

13.3

1.5

154

µA

Power Supply Current-

VA=3.0 V

Normal Operation

VA_HP=3.0 V

VL=3.0 V

IA_HP

ID_L

1.5

270

µA

Power Supply Current-

All Supplies=1.8 V

Power Down Mode (Note 13)

All Supplies =3.0V

150

350

µA

Total Power Dissipation-

All Supplies=1.8 V

Normal Operation

All Supplies=3.0 V

TBD

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

θJA

-55

°C/Watt

Power Supply Rejection Ratio (Note 14)

(1 kHz)

(60 Hz)

PSRR

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