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CS49DV8 Datasheet(PDF) 11 Page - Cirrus Logic

Part No. CS49DV8
Description  32-bit Dual Audio DSP Engine
Download  30 Pages
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Maker  CIRRUS [Cirrus Logic]
Homepage  http://www.cirrus.com
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CS49DV8 Datasheet(HTML) 11 Page - Cirrus Logic

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DS868PP2
Copyright 2008 Cirrus Logic, Inc.
11
CS49DV8C Data Sheet
32-bit Audio DSP Family
5.4 Power Supply Characteristics
(Measurements performed under operating conditions.)
5.5 Thermal Data (128-Pin LQFP)
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
and 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% of the top
and 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
Τj = Ambient Temperature + [ (Power Dissipation in Watts) * θja ]
4. To calculate the case temperature for a given power dissipation
Τc = Τj - [ (Power Dissipation in Watts) * ψ jt ]
Input leakage current (all digital pins with internal
pull-up resistors enabled, and XTI)
IIN-PU
--
50
μA
Parameter
Min
Typ
Max
Unit
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.
-
-
-
500
3.5
120
-
-
-
mA
mA
mA
Parameter
Symbol
Min
Typ
Max
Unit
Thermal Resistance (Junction to Ambient)
Two-layer Board1
Four-layer Board2
θ
ja
-
-
48
40
-
-
°C / Watt
Thermal Resistance (Junction to Top of Package)
Two-layer Board1
Four-layer Board2
ψ
jt
-
-
.39
.33
-
-
°C / Watt
Parameter
Symbol
Min
Typ
Max
Unit


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