CS42L56 View Datasheet(PDF) - Cirrus Logic

Part Name

Description

MFG CO.

CS42L56

Ultralow Power, Stereo Codec with Class H Headphone Amp

Cirrus Logic 

3. CHARACTERISTIC AND SPECIFICATION TABLES

CS42L56

RECOMMENDED OPERATING CONDITIONS

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

DC Power Supply

Analog

Charge Pump

LDO Regulator for Digital

Serial/Control Port Interface

Ambient Temperature

Parameters

Symbol

(Note 1)

(Note 1)

Commercial - CNZ

VA

VCP

VLDO

VL

TA

Min

1.62

1.62

1.62

1.62

-40

Max Units

2.75

V

VA

V

2.75

V

3.63

V

+85

C

ABSOLUTE MAXIMUM RATINGS

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

Parameters

Symbol

DC Power Supply

Analog, Charge Pump, LDO VA, VCP, VLDO

Serial/Control Port Interface

VL

Input Current

External Voltage Applied to Analog Input

External Voltage Applied to Analog Output

External Voltage Applied to Digital Input

Ambient Operating Temperature (power applied)

Storage Temperature

(Note 2)

(Note 3)

(Note 4)

(Note 3)

Iin

VIN

VIN

VIND

TA

Tstg

Min

-0.3

-0.3

-

AGND-0.3

-VHPFILT - 0.3

-0.3

-50

-65

Max

3.0

4.0

±10

VA+0.3

+VHPFILT + 0.3

VL+ 0.3

+115

+150

Units

V

V

mA

V

V

V

°C

°C

WARNING: Operation at or beyond these limits may result in permanent damage to the device. Normal operation

is not guaranteed at these extremes.

Notes:

1.

2.

3.

4.

Due to the existence of parasitic body diodes between VCP and VA, current flows from VCP to VA when-

ever the VA power supply is lower than VCP. This causes a “back-powering” effect on the VA power

supply rails internal to the part; therefore, VA should be maintained at an equal or greater voltage than

VCP at all times. While “back-powering” does not have any adverse effects on device operation with

respect to performance and reliability, it does lead to extra power consumption and therefore should be

avoided.

Any pin except supplies. Transient currents of up to ±100 mA on the analog input pins will not cause

SCR latch-up.

The maximum over/under voltage is limited by the input current.

VHPFILT is specified in “DC Characteristics” on page 27.

ANALOG INPUT CHARACTERISTICS

Test Conditions (unless otherwise specified): Connections to the CS42L56 are shown in the “Typical Connection Diagrams” on

page 11; Input test signal is a 1 kHz sine wave through the passive input filter, PGA = 0 dB; All Supplies = VA;

GND = AGND = 0 V; TA = +25C; Measurement bandwidth is 20 Hz to 20 kHz; Sample Frequency = 48 kHz. Measurement sig-

nal path is AINxx to SDOUT.

Parameter

Analog In to ADC (PGA bypassed)

VA = 2.5 V

VA = 1.8 V

Min Typ Max Min Typ Max Unit

14

DS851F2

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