User`s guide

LPC3250 Developer’s Kit - User’s Guide

Page 8

2.3 LPC3250 Core Voltage Precaution

The core voltage for the LPC3250 can be dynamically changed, via I2C commands sent to the

LTC3447 voltage converter. The voltage can be set to up to 2V. Note that this is above the limits of the

core voltage. Read the LPC3250 datasheet for details (the absolute maximum core voltage allowed is

1.39V).

Note that Embedded Artists do not replace LPC3250 OEM boards where the core voltage

DD(CORE)

) has been raised above 1.39 Volt. It is the user’s responsibility not to exceed the

voltage specification found in the datasheet.

2.4 CE Assessment

The LPC3250 Developers Kit (consisting of the LPC3250 OEM Board and QVGA Base Board) is CE

marked. See separate CE Declaration of Conformity document.

The LPC3250 Developers Kit is a class A product. In a domestic environment this product may cause

radio interference in which case the user may be required to take adequate measures.

EMC emission test has been performed on the LPC3250 Developers Kit. Standard interfaces like

Ethernet, USB, serial have been in use. General expansion connectors where internal signals are

made available (for example processor pins) have been left unconnected. Connecting other devices to

the product via the general expansion connectors may alter EMC emission. It is the user’s

responsibility to make sure EMC emission limits are not exceeded when connecting other devices to

the general expansion connectors of the LPC3250 Developers Kit.

Due to the nature of the LPC3250 Developers Kit – an evaluation board not for integration into an end-

product – fast transient immunity tests and conducted radio-frequency immunity tests have not been

executed. Externally connected cables are assumed to be less than 3 meters. The general expansion

connectors where internal signals are made available do not have any other ESD protection than from

the chip themselves. Observe ESD precaution.

Note that the LPC3250 OEM board is classified as a component and is hence not CE marked

separately. It can perform different functions in different integrations and it does not have a direct

function. It is therefore not in the scope of the CE Directive. An end product, where an OEM Board is

integration into, is however very likely to need CE marking.

2.5 Other Products from Embedded Artists

Embedded Artists have a broad range of LPC1xxx/LPC2xxx/LPC3xxx/LPC4xxx based boards that are

very low cost and developed for prototyping / development as well as for OEM applications.

Modifications for OEM applications can be done easily, even for modest production volumes. Contact

Embedded Artists for further information about design and production services.

2.5.1 Design and Production Services

Embedded Artists provide design services for custom designs, either completely new or modification to

existing boards. Specific peripherals and I/O can be added easily to different designs, for example,

communication interfaces, specific analog or digital I/O, and power supplies. Embedded Artists has a

broad, and long, experience in designing industrial electronics in general and with NXP’s

LPC1xxx/LPC2xxx/LPC3xxx microcontroller family in specific. Our competence also includes wireless

and wired communication for embedded systems. For example IEEE802.11b/g (WLAN), Bluetooth™,

ZigBee™, ISM RF, Ethernet, CAN, RS485, and Fieldbuses.

2.5.2 OEM / Education / QuickStart Boards and Kits

Visit Embedded Artists’ home page, www.EmbeddedArtists.com, for information about other OEM /

Education / QuickStart boards / kits or contact your local distributor.