PNX1500E NXP Semiconductors, PNX1500E Datasheet - Page 50
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PNX1500E
Manufacturer Part Number
PNX1500E
Description
Manufacturer
NXP Semiconductors
Datasheet
1.PNX1500E.pdf
(828 pages)
Specifications of PNX1500E
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Table 20: MPEG-2 Decoding with 720x480P Output on PNX1502
PNX15XX_PNX952X_SER_N_4
Product data sheet
PNX1502
mA
W
1.3 V - VDD
1002
1.302
5.4.1 Typical Power Consumption for Typical Applications
5.4.2 Expected Maximum Currents
5.4 Power Consumption
The standby mode is obtain by specifically turning off the different clocks, i.e. it is not
just a simple bit to flip into a register. Once all the clocks have been shutdown the
power dissipation is at most 300 mW (includes leakage current) at 85 ˚C (case
temperature).
The power consumption of the PNX15xx/952x Series is dependent on the activity of
the TM3260, the number of modules operating, the frequencies at which the system
is running, the core voltage, as well as the loads at board level on each pin. For these
reasons it is difficult to provide precise power consumption numbers.
Three main techniques can be applied to reduce the ‘Out of the Box’ power
consumption of the PNX1500 system:
Example:
savings).
Typical power consumption for typical applications on PNX15xx/952x Series is
expected to ranges from 1.2 W to 2 W.
Table 21
speed which is not what a real application will do. Board design, i.e. decoupling and
regulators, should plan for peak current. Peak currents are possible for few cycles it is
not sustained current consumption. These peaks will be averaged out by the
decoupling capacitors, but regulators should also not be under-dimensioned.
Table 21: Estimated PNX15xx/952x Series Maximum and Peak current
PNX15xx/952x
Series
Maximum, mA
Peak, mA
•
•
•
Turn off the unused modules. After reset, the modules are clocked with a 27 MHz
clock (input crystal clock, XTAL_IN). Turning off the clocks of the unused modules
significantly reduces the power consumption.
Run the PNX1500 system with the adjusted clock speeds for each active module.
This can include dynamic tuning to the TM3260 speed.
Powerdown the TM3260 every time the OS (Operating System) reaches the idle
task.
2.6 V - VCCM
104
0.270
presents estimated maximum currents, i.e. all modules operating at full
Table 20
Rev. 4.0 — 03 December 2007
VDD
1400
2000
presents a typical case (not optimized for power consumption
3.3 V - VCCP
53
0.175
VCCM
300
500
Total
n/a
1.747
PNX15xx/952x Series
Chapter 1: Integrated Circuit Data
VCCP
200
300
© NXP B.V. 2007. All rights reserved.
1-50
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