CS48540-DQZ Cirrus Logic Inc, CS48540-DQZ Datasheet - Page 12

• Manufacturer Part Number: CS48540-DQZ
• Description: Audio DSPs High Perform. 32-Bit Audio Decoder DSP
• Manufacturer: Cirrus Logic Inc

Specifications of CS48540-DQZ

• Operating Supply Voltage: 1.8 V
• Mounting Style: SMD/SMT
• Package / Case: LQFP-48
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

CS485xx Family Data Sheet
32-bit Audio Decoder DSP Family
5.6 Switching Characteristics— RESET
5.7 Switching Characteristics — XTI
12
RESET# minimum pulse width low
All bidirectional pins high-Z after RESET# low
Configuration pins setup before RESET# high
Configuration pins hold after RESET# high
External Crystal operating frequency
XTI period
XTI high time
XTI low time
External Crystal Load Capacitance (parallel resonant)
External Crystal Equivalent Series Resistance
1. Part characterized with the following crystal frequency values: 11.2896, 12.288, 18.432, 24.576, & 27 MH.z
2. C
be avoided. The crystal oscillator circuit design should follow the crystal manufacturer’s recommendation for load capacitor
selection.
L
refers to the total load capacitance as specified by the crystal manufacturer. Crystals that require a C
XTI
Parameter
Parameter
All Bidirectional
RESET#
HS[3:0]
1
Pins
t
clkih
Copyright 2009 Cirrus Logic, Inc.
Figure 1. RESET Timing
Figure 2. XTI Timing
T
CONFIDENTIAL
clki
T
T
rst2z
2
rstl
t
clkil
Symbol
Symbol
T
T
T
T
ESR
F
T
T
T
rsthld
T
rst2z
rstsu
clkih
C
clkil
xtal
clki
rstl
rstsu
L
T
rsthld
11.2896
33.3
13.3
13.3
Min
Min
50
20
10
1
-
L
outside this range should
Max
Max
100
100
27
18
50
-
-
-
-
-
DS734F3
MHz
Unit
Unit
ms
pF
ns
ns
ns
ns
ns
ns
Ω