CS495303 View Datasheet(PDF) - Cirrus Logic
Part Name
Description
Manufacturer
CS495303 Datasheet PDF : 36 Pages
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CS4953xx Data Sheet
32-bit Audio Decoder DSP Family
Parameter
Symbol
Min
Typ
Max
Input leakage current (all digital pins with internal pull-up
IIN-PU
-
resistors enabled, and XTI)
-
70
Unit
μA
5.4 Power Supply Characteristics
(measurements performed under operating conditions)
Parameter
Power supply current:
Core and I/O operating: VDD1
PLL operating: VDDA
With external memory and most ports operating: VDDIO
1. Dependent on application firmware and DSP clock speed.
Min
Typ
Max
Unit
-
500
-
mA
-
3.5
-
mA
-
120
-
mA
5.5 Thermal Data (144-pin LQFP)
Parameter
Symbol Min
Typ
Max
Unit
Thermal Resistance (Junction to Ambient)
Two-layer Board1
θja
Y Four-layer Board2
°C / Watt
-
48
-
-
40
-
Thermal Resistance (Junction to Top of Package)
Two-layer Board1
ψjt
R Four-layer Board2
°C / Watt
-
.39
-
-
.33
-
A 5.6 Thermal Data (128-pin LQFP)
Parameter
Symbol Min
Typ
Max
Unit
IN Thermal Resistance (Junction to Ambient)
Two-layer Board1
θja
Four-layer Board2
°C / Watt
-
53
-
-
44
-
Thermal Resistance (Junction to Top of Package)
Two-layer Board1
ψjt
Four-layer Board2
°C / Watt
-
.45
-
-
.39
-
IM Notes: 1. Two-layer board is specified as a 76 mm X 114 mm, 1.6 mm thick FR-4 material with 1-oz copper covering 20 %
of the top & bottom layers.
2. Four-layer board is specified as a 76 mm X 114 mm, 1.6 mm thick FR-4 material with 1-oz copper covering 20 %
L of the top & bottom layers and 0.5-oz copper covering 90 % of the internal power plane and ground plane layers.
3. To calculate the die temperature for a given power dissipation
EΤj = Ambient Temperature + [ (Power Dissipation in Watts) * θja ]
4. To calculate the case temperature for a given power dissipation
RΤc = Τj - [ (Power Dissipation in Watts) * ψ jt ]
P5.7 Switching Characteristics— RESET
Parameter
RESET minimum pulse width low
All bidirectional pins high-Z after RESET low
Configuration pins setup before RESET high
Symbol
Min
Trstl
1
Trst2z
-
Trstsu
50
Max
Unit
-
μs
100
ns
-
ns
DS705PP6
Copyright 2009 Cirrus Logic
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