BC41B143A-DS-003PC Datasheet, PDF (44/94 Pages) List of Unclassifed Manufacturers – BlueCore 4-ROM Plug-n-Go Single Chip Bluetooth v2.0 + EDR System

Device Terminal Descriptions
10 Device Terminal Descriptions
10.1 RF Ports
The BlueCore4-ROM Plug-n-Go RF_IN terminal can be configured as either a single-ended or differential input. The
operational mode is determined by setting the PS Key PSKEY_TXRX_PIO_CONTROL (0x20).
10.1.1 RF Plug-n-Go
The 10 x 10mm 96-ball LFBGA package used on the BlueCore4-ROM Plug-n-Go device is an RF Plug-n-Go package,
where the terminal RF_CONNECT forms an unbalanced ouput with a nominal 50Ω impedance. This terminal can be
directly connected to an antenna requiring no impedance matching network as Figure 10.1 indicates.
BlueCore
RF_CONNECT
R1
50Ω
Figure 10.1: Circuit for RF_CONNECT
BC41B143A-ds-003Pc
Advance Information
© Cambridge Silicon Radio Limited 2005
Page 44 of 94