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CS48DV2B-DQZ
(Rev.:2008)

32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby

Cirrus Logic 

CS48DV2B Data Sheet

32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby

5. Characteristics and Specifications

Note:

All data sheet minimum and maximum timing parameters are guaranteed over the rated voltage and

temperature. All data sheet typical parameters are measured under the following conditions: T = 25 °C,

CL = 20 pF, VDD = VDDA = 1.8 V, VDDIO = 3.3 V, GNDD = GNDIO = GNDA = 0 V.

5.1 Absolute Maximum Ratings

(GNDD = GNDIO = GNDA = 0 V; all voltages with respect to 0V)

Parameter

Symbol

Min

Max

Unit

DC power supplies:

Core supply VDD

-0.3

2.0

V

PLL supply VDDA

-0.3

I/O supply VDDIO

-0.3

|VDDA – VDDIO|

-

3.6

V

3.6

V

0.3

V

T Input pin current, any pin except supplies

F Input voltage on PLL_REF_RES

Input voltage on I/O pins

A Storage temperature

Iin

-

+/-10

mA

Vfilt

-0.3

3.6

V

Vinio

-0.3

5.0

V

Tstg

-65

150

°C

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

R not guaranteed at these extremes.

D 5.2 Recommended Operating Conditions

(GNDD = GNDIO = GNDA = 0 V; all voltages with respect to 0V)

L I DC power supplies:

Parameter

NTIALPH Ambient operating temperature

Symbol Min Typ Max

Unit

Core supply VDD

1.71 1.8 1.89

V

PLL supply VDDA

3.13

3.3 3.46

V

I/O supply VDDIO 3.13 3.3 3.46

V

|VDDA – VDDIO|

0

V

TA

CS48DV2B-CQZ

CS48DV2B-DQZ

-

°C

0

+70

-40

+85

E E Note: It is recommended that the 3.3 V IO supply come up ahead of or simultaneously with the 1.8 V core supply.

ID D 5.3 Digital DC Characteristics

(Measurements performed under static conditions.)

F Parameter

High-level input voltage

N Low-level input voltage, except XTI

Low-level input voltage, XTI

O Input Hysteresis

C High-level output voltage (IO = -2mA), except XTI

Symbol

Min

Typ

VIH

VIL

VILXTI

Vhys

VOH

2.0

-

-

-

-

-

0.4

VDDIO * 0.9 -

Max

-

0.8

0.6

-

Unit

V

V

V

V

V

Low-level output voltage (IO = 2mA), except XTI

VOL

-

- VDDIO * 0.1

V

Input leakage XTI

ILXTI

-

-

5

μA

Input leakage current (all digital pins with internal

ILEAK

-

-

70

μA

pull-up resistors enabled)

10

Copyright 2008 Cirrus Logic

DS875F1

CONFIDENTIAL

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