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CS4970X4 Datasheet(PDF) 12 Page - Cirrus Logic

Part No. CS4970X4
Description  32-bit High Definition Audio Decoder DSP Family
Download  36 Pages
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Maker  CIRRUS [Cirrus Logic]
Homepage  http://www.cirrus.com
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CS4970X4 Datasheet(HTML) 12 Page - Cirrus Logic

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Copyright 2008 Cirrus Logic
DS752PP7
CS4970x4 Data Sheet
32-bit High Definition Audio Decoder DSP Family
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
Trstl
1-
μs
All bidirectional pins high-Z after RESET# low
Trst2z
-100
ns
Configuration pins setup before RESET# high
Trstsu
50
-
ns
Configuration pins hold after RESET# high
Trsthld
20
-
ns
Parameter
Symbol
Min
Max
Unit
External Crystal operating frequency1
1. Part characterized with the following crystal frequency values: 11.2896, 12.288, 18.432, 24.576, and 27 MHz.
Fxtal
11.2896
27
MHz
XTI period
Tclki
33.3
100
ns
XTI high time
Tclkih
13.3
-
ns
XTI low time
Tclkil
13.3
-
ns
External Crystal Load Capacitance (parallel resonant)2
2. CL refers to the total load capacitance as specified by the crystal manufacturer. Crystals which require a CL outside
this range should be avoided. The crystal oscillator circuit design should follow the crystal manufacturer’s
recommendation for load capacitor selection.
CL
10
18
pF
External Crystal Equivalent Series Resistance
ESR
50
W
RESET#
T
rst2z
T
rstl
T
rstsu
T
rsthld
HS[3:0]
All Bidirectional
Pins
t clkih
t clkil
Tclki
XTI


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