CS42L52 datasheet(23/82 Pages) CIRRUS

23 / 82 page

DS680A1

CS42L52

DC ELECTRICAL CHARACTERISTICS

(AGND = 0 V; all voltages with respect to ground.)

17. Valid with the recommended capacitor values on FILT+ and VQ. Increasing the capacitance will also

increase the PSRR.

18. The PGA is biased with VQ, created from a resistor divider from the VA supply. Increasing the capaci-

tance on VQ will also increase the PSRR at low frequencies. A 10 µF capacitor on VQ improves the

PSRR to 42 dB.

DIGITAL INTERFACE SPECIFICATIONS & CHARACTERISTICS

19. See “I/O Pin Characteristics” on page 9 for serial and control port power rails.

Parameters

Min

Typ

Max

Units

VQ Characteristics

Nominal Voltage

Output Impedance

DC Current Source/Sink

0.5•VA

μA

MIC BIAS Characteristics

Nominal Voltage

MICBIAS_LVL[1:0] = 00

MICBIAS_LVL[1:0] = 01

MICBIAS_LVL[1:0] = 10

MICBIAS_LVL[1:0] = 11

DC Output Current

Power Supply Rejection Ratio (PSRR)

1 kHz

0.8•VA

0.7•VA

0.6•VA

0.5•VA

Power Supply Rejection Ratio Characteristics

PSRR @1 kHz (Note 17)

PGA to ADC

ADC

DAC (HP & Line Amps)

PSRR @60 Hz (Note 17)

PGA to ADC(Note 18)

ADC

DAC (HP & Line Amps)

PSRR @217 Hz

Full-Bridge PWM Outputs

Parameters (Note 19)

Symbol

Min

Max

Units

Input Leakage Current

Iin

-±10

μA

Input Capacitance

-10

1.8 V - 3.3 V Logic

High-Level Output Voltage (IOH = -100 μA)

VOH

VL - 0.2

Low-Level Output Voltage (IOL = 100 μA)

VOL

-0.2

High-Level Input Voltage

VL = 1.65 V

VL = 1.8 V

VL = 2.0 V

VL > 2.0 V

VIH

0.83•VL

0.76•VL

0.68•VL\

0.65•VL

-V

Low-Level Input Voltage

VIL

-0.35•VL

CS42L52 Datasheet(PDF) 23 Page - Cirrus Logic

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