CS53L21 datasheet(18/66 Pages) CIRRUS

18 / 66 page

DS700PP1

CS53L21

DC ELECTRICAL CHARACTERISTICS

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

14. The DC current draw represents the allowed current draw from the VQ pin due to typical leakage

through electrolytic de-coupling capacitors.

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

increase the PSRR.

DIGITAL INTERFACE SPECIFICATIONS & CHARACTERISTICS

16. See “Digital I/O Pin Characteristics” on page 8 for serial and control port power rails.

Parameters

Min

Typ

Max

Units

VQ Characteristics

Nominal Voltage

Output Impedance

DC Current Source/Sink (Note 14)

0.5•VA

μA

FILT+

-VA

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 Current Source

Power Supply Rejection Ratio (PSRR)

1 kHz

0.8•VA

0.7•VA

0.6•VA

0.5•VA

Power Consumption (Normal Operation Worse Case)

1 kHz

Power Supply Rejection Ratio (PSRR) (Note 15)

1 kHz

-60-

Parameters (Note 16)

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

VIH

0.68•VL

Low-Level Input Voltage

VIL

0.32•VL

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