CDB53L21 데이터 시트보기 (PDF) - Cirrus Logic

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CDB53L21

Low Power, Stereo Analog to Digital Converter

Cirrus Logic 

CS53L21

DC ELECTRICAL CHARACTERISTICS

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

Parameters

Min

VQ Characteristics

Nominal Voltage

-

Output Impedance

-

DC Current Source/Sink (Note 14)

-

FILT+

-

MIC BIAS Characteristics

Nominal Voltage

DC Current Source

Power Supply Rejection Ratio (PSRR)

MICBIAS_LVL[1:0] = 00 -

MICBIAS_LVL[1:0] = 01 -

MICBIAS_LVL[1:0] = 10 -

MICBIAS_LVL[1:0] = 11 -

-

1 kHz -

Power Consumption (Normal Operation Worse Case)

1 kHz -

Power Supply Rejection Ratio (PSRR) (Note 15)

1 kHz -

Typ

0.5•VA

23

-

VA

0.8•VA

0.7•VA

0.6•VA

0.5•VA

-

50

-

60

Max Units

-

V

-

kΩ

10

μA

-

V

-

V

-

V

-

V

-

V

1

mA

-

dB

30

mW

-

dB

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

Parameters (Note 16)

Input Leakage Current

Input Capacitance

Symbol

Min

Iin

-

-

Max

±10

10

1.8 V - 3.3 V Logic

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

Low-Level Output Voltage (IOL = 100 μA)

High-Level Input Voltage

Low-Level Input Voltage

VOH

VL - 0.2

-

VOL

-

0.2

VIH

0.68•VL

-

VIL

-

0.32•VL

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

Units

μA

pF

V

V

V

V

18

DS700PP1

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