CS44800 datasheet(9/80 Pages) CIRRUS

9 / 80 page

DS632F1

CS44800

DC ELECTRICAL CHARACTERISTICS

(GND = 0 V, all voltages with respect to ground; DAI_MCLK = 12.288 MHz, XTAL = 24.576 MHz, PWM Switch

Rate = 384 kHz unless otherwise specified.)

Normal operation is defined as RST = HI with a 997 Hz, 0 dBFS input.

Current consumption increases with increasing XTAL clock rates and PWM switch rates. Variance be-

tween DAI clock rates is negligible.

ILC measured with no external loading on the SDA pin.

Valid with PSRR function enabled and the recommended external ADC (CS4461) and filtering.

Power down mode is defined as RST pin = LOW with all clock and data lines held static.

When RST pin = LOW, the internal oscillator is active to provide a valid clock for the SYS_CLK output.

DIGITAL INTERFACE CHARACTERISTICS

(GND = 0 V, all voltages with respect to ground)

10. Serial Port

signals

include:

SYS_CLK, DAI_MCLK, DAI_SCLK, DAI_LRCK, DAI_SDIN1-4

Control Port signals include: SCL/CCLK, SDA/CDOUT, AD0/CS, AD1/CDIN, INT, RST, MUTE

PWM signals include: PWMOUTA1-B4, PSR_MCLK, PSR_SYNC, PSR_DATA, PS_SYNC, GPIO[6:0]

Parameter

Symbol

Min

Typ

Max

Units

Normal Operation (Note 4)

Power Supply Current (Note 5)

VD = 2.5 V

VDX = 3.3 V

VDP = 3.3 V

VLS = 3.3 V

VLC = 3.3 V (Note 6)

IDX

IDP

ILS

ILC

150

1.2

150

250

µA

Power Dissipation

VD=2.5 V, VDX = VDP = VLS = VLC = 3.3 V

387

500

Power Supply Rejection Ratio (Note 7)

(1 kHz)

(60 Hz)

PSRR

Power-Down Mode (Note 8)

Power Supply Current

All Supplies except VDX (Note 9)

Ipd

-80

µA

Parameters (Note 10)

Symbol

Min

Typ

Max

Units

High-Level Input Voltage

XTAL

PWM Interface

Serial Audio Interface

Control Interface

VIH

0.7xVDX

0.7xVDP

0.7xVLS

0.7xVLC

Low-Level Input Voltage

XTAL

PWM Interface

Serial Audio Interface

Control Interface

VIL

0.2xVDX

0.2xVDP

0.2xVLS

0.2xVLC

High-Level Output Voltage at Io = -2 mA

PWM Interface

Serial Audio Interface

Control Interface

VOH

VDP-1.0

VLS-1.0

VLC-1.0

Low-Level Output Voltage at Io = 2 mA

PWM Interface

Serial Audio Interface

Control Interface

VOL

0.45

Input Leakage Current

Iin

±10

µA

Input Capacitance

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