OM11027 NXP Semiconductors, OM11027 Datasheet - Page 81
OM11027
Manufacturer Part Number
OM11027
Description
BOARD EVAL LPC2939
Manufacturer
NXP Semiconductors
Type
MCUr
Datasheet
1.OM11027.pdf
(99 pages)
Specifications of OM11027
Contents
Board
For Use With/related Products
LPC2939
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
568-4787
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NXP Semiconductors
Table 43.
V
ground.
[1]
[2]
10. Application information
LPC2939_3
Product data sheet
Symbol
5.0 V ADC0
f
f
t
3.3 V ADC1/2
f
f
t
i(ADC)
s(max)
conv
i(ADC)
s(max)
conv
DD(CORE)
All parameters are guaranteed over the virtual junction temperature range by design. Pre-testing is performed at T
temperature on wafer level. Cased products are tested at T
test conditions to cover the specified temperature and power supply voltage range.
Duty cycle clock should be as close as possible to 50 %.
[1]
= V
ADC dynamic characteristics
DD(OSC_PLL)
Parameter
ADC input frequency
maximum sampling rate
conversion time
ADC input frequency
maximum sampling rate
conversion time
10.1 Operating frequency selection
9.7 Dynamic characteristics: ADC
The LPC2939 is specified to operate at a maximum frequency of 125 MHz, maximum
temperature of 85 C, and maximum core voltage of 1.89 V.
that the user can achieve higher operating frequencies for the LPC2939 by controlling the
temperature and the core voltage accordingly.
; V
DD(IO)
= 2.7 V to 3.6 V; V
All information provided in this document is subject to legal disclaimers.
Conditions
f
f
n = resolution
in number of ADC
clock cycles
in number of bits
f
f
n = resolution
in number of ADC
clock cycles
in number of bits
i(ADC)
s
i(ADC)
s
= f
= f
resolution 2 bit
resolution 10 bit
resolution 2 bit
resolution 10 bit
i(ADC)
i(ADC)
= 4.5 MHz;
= 4.5 MHz;
Rev. 03 — 7 April 2010
DDA(ADC3V3)
/ (n + 1) with
/ (n + 1) with
amb
= 25 C (final testing). Both pre-testing and final testing use correlated
= 3.0 V to 3.6 V; all voltages are measured with respect to
ARM9 microcontroller with CAN, LIN, and USB
[2]
[2]
Min
4
-
-
3
2
4
-
-
3
2
Typ
-
-
-
-
-
-
-
-
-
-
Figure 30
and
Max
4.5
1500
400
11
10
4.5
1500
400
11
10
LPC2939
© NXP B.V. 2010. All rights reserved.
amb
Figure 31
= 85 C ambient
Unit
MHz
ksamples/s
ksamples/s
cycles
bits
MHz
ksamples/s
ksamples/s
cycles
bits
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