CS42888-CQZ datasheet(23/61 Pages) CIRRUS

23 / 61 page

DS717F2

CS42888

DC ELECTRICAL CHARACTERISTICS

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

Notes:

26. Normal operation is defined as RST = HI with a 997 Hz, 0 dBFS input to the DAC and AUX port, and a

1 kHz, -1 dB analog input to the ADC port sampled at the highest Fs for each speed mode. DAC outputs

are open, unless otherwise specified.

27. IDT measured with no external loading on pin 64 (SDA).

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

increase the PSRR.

29. Power-Down Mode is defined as RST = LO with all clocks and data lines held static and no analog input.

30. Guaranteed by design. The DC current draw represents the allowed current draw from the VQ pin due

to typical leakage through the electrolytic de-coupling capacitors.

DIGITAL INTERFACE SPECIFICATIONS & CHARACTERISTICS

Notes:

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

Parameters

Symbol

Min

Typ

Max

Units

Normal Operation (Note 26)

Power Supply Current

VA = 5.0 V

VLS = VLC = VD = 3.3 V

(Note 27)

IDT

60.6

Power Dissipation

All Supplies = 5 V

600

850

Power Supply Rejection Ratio

1 kHz

(Note 28)

60 Hz

PSRR

Power-Down Mode (Note 29)

Power Dissipation

All Supplies = VA = 5 V

1.25

VQ Characteristics

Nominal Voltage

Output Impedance

DC Current Source/Sink (Note 30)

0.5•VA

μA

FILT+_ADC Nominal Voltage

FILT+_DAC Nominal Voltage

Parameters (Note 31)

Symbol

Min

Typ

Max

Units

High-Level Output Voltage at Io=2 mA

Serial Port

Control Port

MUTEC

VOH

VLS-1.0

VLC-1.0

VA-1.0

Low-Level Output Voltage at Io=2 mA

Serial Port

Control Port

MUTEC

VOL

0.4

High-Level Input Voltage

Serial Port

Control Port

VIH

0.7xVLS

0.7xVLC

Low-Level Input Voltage

Serial Port

Control Port

VIL

0.2xVLS

0.2xVLC

Leakage Current

Iin

±10

μA

Input Capacitance (Note 23)

MUTEC Drive Current

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