Specifications

Wireless CPU

Q24 Series

Interfaces

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WM_PGM_Q24NG_PTS_001-005

November 20, 2007

Pin description

Signal Pin number I/O I/O type Description

VCC_RTC 56 I/O Supply RTC Back-up supply

Operating conditions

Parameter Condition Min Typ Max Unit

Input voltage 2 2.75 V

Input current

VCC_RTC

VDD=3.6V

=2.5 V

3 1 µA

Output voltage V, I 5 VDD=3.6 out=0.5mA 2.65 2.7 2.7 V

Output current VDD=3.6, Vout=2.25V 1 2 mA 0.4

3 R face

The impedance is 50Ω nominal and the DC impedance is 0Ω.

The RF interface supports 4 types of connections:

• U.FL Connector (on both sides)

A wide variety of cables fitted with U.FL connectors are proposed by different

suppliers.

• MMS Connector

The MMS connector stands on three pliable legs. The design guarantees the

receptacle stability after placement. The MMS snap on mating system ensures a

correct positive connection on each time.

A wide variety of cables fitted with MMS connectors are proposed by different

suppliers.

• Soldered solution

A soldered solution is preferably based on an RG178 coaxial cable.

• IMP connector

This connector is dedicated to different board applications and must be soldered

to the customer board. The supplier is Radiall with the following reference:

R107 064 900 or R107 064 920.

Notes:

.21 F Inter

3.21.1 RF Connections

• The Wireless CPU

Q24 Series does not support an antenna switch for a car kit,

but this function may be implemented externally and it may be driven using a

GPIO.

• The antenna cable and connector should be selected in order to minimize losses