CS47024C-DQZ Cirrus Logic Inc, CS47024C-DQZ Datasheet - Page 19

• Manufacturer Part Number: CS47024C-DQZ
• Description: IC 2CH ADC 4ch DAC & 32bit DSP
• Manufacturer: Cirrus Logic Inc

5.7 Digital Switching Characteristics — XTI
5.8 Digital Switching Characteristics — Internal Clock
DS787PP1
External Crystal operating frequency
XTI period
XTI high time
XTI low time
External Crystal Load Capacitance (parallel resonant)
External Crystal Equivalent Series Resistance
Internal DSP_CLK frequency
Internal DSP_CLK period
1. Part characterized with the following crystal frequency values: 12.288 and 24.576 MHz
2. C
1. After initial power-on reset, F
2.See
this range should be avoided. The crystal oscillator circuit design should follow the crystal manufacturer’s
recommendation for load capacitor selection.
locked until the next power-on reset.
L
refers to the total load capacitance as specified by the crystal manufacturer. Crystals which require a C
Section
5.7. for all references to F
XTI
Parameter
Parameter
1
1
dclk
= F
1
t
xtal
clkih
xtal.
. After initial kickstart commands, the PLL is locked to max F
Copyright 2009 Cirrus Logic
Figure 6.
CS47048-CQZ
CS47048-DQZ
CS47028-CQZ
CS47028-DQZ
CS47024-CQZ
CS47024-DQZ
CS47048-CQZ
CS47048-DQZ
CS47028-CQZ
CS47028-DQZ
CS47024-CQZ
CS47024-DQZ
T
clki
2
XTI Timing
t
clkil
Symbol
Symbol
DCLKP
T
ESR
F
F
T
T
clkih
C
clkil
dclk
xtal
clki
L
12.288
F
13.3
13.3
F
F
F
F
F
Min
Min
6.7
6.7
6.7
6.7
6.7
6.7
41
10
xtal
xtal
xtal
xtal
xtal
xtal
2
Audio SOC Processor Family
CS470xx Data Sheet
24.576
dclk
1/F
1/F
1/F
1/F
1/F
1/F
Max
Max
150
150
150
150
150
150
81
18
50
-
-
and remains
xtal
xtal
xtal
xtal
xtal
xtal
L
outside
MHz
MHz
Unit
Unit
pF
ns
ns
ns
ns
Ω
19