CS43L42 datasheet(8/40 Pages) CIRRUS

8 / 40 page

CS43L42

DS481PP2

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: 8. Power Down Mode is defined as RST = LO with all clocks and data lines held static.

9. Valid with the recommended capacitor values on FILT+, VQ_LINE and VQ_HP as shown in Figure 6.

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.

Parameters

Symbol

Min

Typ

Max

Units

Power Supplies

Power Supply Current-

VA=1.8 V

Normal Operation

VA_HP=1.8 V

VA_LINE=1.8 V

VL=1.8 V

IA_HP

IA_LINE

ID_L

7.3

1.5

1.6

µA

Power Supply Current-

VA=1.8 V

Power Down Mode (Note 8)

VA_HP=1.8 V

VA_LINE=1.8 V

VL=1.8 V

IA_HP

IA_LINE

ID_L

TBD

µA

Power Supply Current-

VA=3.0 V

Normal Operation

VA_HP=3.0 V

VA_LINE=3.0 V

VL=3.0 V

IA_HP

IA_LINE

ID_L

10.5

1.5

1.7

9.3

µA

Power Supply Current-

VA=3.0 V

Power Down Mode (Note 8)

VA_HP=3.0 V

VA_LINE=3.0 V

VL=3.0 V

IA_HP

IA_LINE

ID_L

TBD

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

TBD

Package Thermal Resistance

θJA

-75-

°C/Watt

Power Supply Rejection Ratio (Note 9)

(1 kHz)

(60 Hz)

PSRR

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