CS48DV2B Data Sheet

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

12

Copyright 2009 Cirrus Logic

DS875F2

CONFIDENTIAL

5.6 Switching Characteristics— RESET

Figure 1. RESET Timing

5.7 Switching Characteristics — XTI

Figure 2. XTI Timing

Parameter

Symbol

Min

Max

Unit

RESET minimum pulse width low

1-

ms

All bidirectional pins high-Z after RESET low

-100

ns

Configuration pins setup before RESET high

50

-

ns

Configuration pins hold after RESET high

20

-

ns

Parameter

Symbol

Min

Max

Unit

1. Part characterized with the following crystal frequency values: 11.2896, 12.288, 18.432, 24.576, & 27 MH.z

11.2896

27

MHz

XTI period

33.3

100

ns

XTI high time

13.3

-

ns

XTI low time

13.3

-

ns

be avoided. The crystal oscillator circuit design should follow the crystal manufacturer’s recommendation for load capacitor

selection.

10

18

pF

External Crystal Equivalent Series Resistance

ESR

50

Ω

RESET

HS[3:0]

All Bidirectional

Pins

XTI