CS4970x4 Data Sheet

32-bit High Definition Audio Decoder DSP Family

DS752F1

11

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—

s

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: 12.288 and 24.576 MHz.

12.288

24.576

MHz

XTI period

41

81.4

ns

XTI high time

16.4

—

ns

XTI low time

16.4

—

ns

should 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



RESET#

T

rst2z

T

rstl

T

rstsu

T

rsthld

HS[3:0]

All Bidirectional

Pins

XTI