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CDB43L42

Low Voltage, Stereo DAC with Headphone Amp

Cirrus Logic 

CS43L42

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-

Power Down Mode (Note 8)

Power Supply Current-

Normal Operation

Power Supply Current-

Power Down Mode (Note 8)

Total Power Dissipation-

Normal Operation

VA=1.8 V IA

-

VA_HP=1.8 V IA_HP

-

VA_LINE=1.8 V IA_LINE

-

VL=1.8 V ID_L

-

VA=1.8 V

IA

-

VA_HP=1.8 V IA_HP

-

VA_LINE=1.8 V IA_LINE

-

VL=1.8 V ID_L

-

VA=3.0 V

IA

-

VA_HP=3.0 V IA_HP

-

VA_LINE=3.0 V IA_LINE

-

VL=3.0 V ID_L

-

VA=3.0 V IA

-

VA_HP=3.0 V IA_HP

-

VA_LINE=3.0 V IA_LINE

-

VL=3.0 V ID_L

-

All Supplies=1.8 V

-

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 9)

θJA

-

(1 kHz) PSRR

-

(60 Hz)

-

Typ

7.3

1.5

1.6

4

TBD

TBD

TBD

TBD

10.5

1.5

1.7

9.3

TBD

TBD

TBD

TBD

19

41

TBD

TBD

75

60

40

Max Units

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

TBD

TBD

-

-

-

-

-

mA

mA

mA

µA

µA

µA

µA

µA

mA

mA

mA

µA

µA

µA

µA

µA

mW

mW

mW

mW

°C/Watt

dB

dB

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.

8

DS481PP2

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