Datasheet

LPC12D27 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet Rev. 1 — 20 September 2011 39 of 46
NXP Semiconductors
LPC12D27
32-bit ARM Cortex-M0 microcontroller
12.3 ElectroMagnetic Compatibility (EMC)
Radiated emission measurements according to the IEC61967-2 standard using the
TEM-cell method are shown for the LPC1227FBD64/301 in Table 17
.
[1] IEC levels refer to Appendix D in the IEC61967-2 Specification.
Table 17. ElectroMagnetic Compatibility (EMC) for part LPC1227FBD64/301 (TEM-cell
method)
V
DD
= 3.3 V; T
amb
= 25  C.
Parameter Frequency band System clock = Unit
12 MHz 24 MHz 33 MHz
Input clock: IRC (12 MHz)
maximum
peak level
150 kHz - 30 MHz 4.2 3.8 6.4 dBV
30 MHz - 150 MHz 7.3 5.4 9 dBV
150 MHz - 1 GHz 16.4 20.1 23.4 dBV
IEC level
[1]
- MLL-
Input clock: crystal oscillator (12 MHz)
maximum
peak level
150 kHz - 30 MHz 4.8 4 6.6 dBV
30 MHz - 150 MHz 6.9 5.6 10 dBV
150 MHz - 1 GHz 16.3 20.3 22.3 dBV
IEC level
[1]
- MLL-