CS42L50 데이터 시트보기 (PDF) - Cirrus Logic

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CS42L50

Low Voltage, Stereo CODEC with Headphone Amp

Cirrus Logic 

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

IA

-

VA_HP=1.8 V IA_HP

-

VL=1.8 V ID_L

-

VA=3.0 V

IA

-

VA_HP=3.0 V IA_HP

-

VL=3.0 V ID_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)

θJA

-

(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

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