LPC2926_27_29 NXP Semiconductors, LPC2926_27_29 Datasheet - Page 80

• Manufacturer Part Number: LPC2926_27_29
• Description: The LPC2926/2927/2929 combine an ARM968E-S CPU core with two integrated TCMblocks operating at frequencies of up to 125 MHz, Full-speed USB 2
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 43.
V
ground.
[1]
[2]
10. Application information
LPC2926_27_29
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 LPC2926/2927/2929 is specified to operate at a maximum frequency of 125 MHz,
maximum temperature of 85 °C, and maximum core voltage of 1.89 V.
Figure 31
LPC2926/2927/2929 by controlling the temperature and the core voltage accordingly.
; V
DD(IO)
= 2.7 V to 3.6 V; V
show that the user can achieve higher operating frequencies for the
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)
Rev. 5 — 28 September 2010
= 4.5 MHz;
= 4.5 MHz;
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
LPC2926/2927/2929
Typ
-
-
-
-
-
-
-
-
-
-
Max
4.5
1500
400
11
10
4.5
1500
400
11
10
Figure 30
© NXP B.V. 2010. All rights reserved.
amb
= 85 °C ambient
Unit
MHz
ksample/s
ksample/s
cycles
bits
MHz
ksample/s
ksample/s
cycles
bits
and
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