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SE2425U

Description
rangechargertm 2.4 ghz bluetooth power amplifier IC preliminary information
File Size222KB,10 Pages
ManufacturerSIGE
Websitehttp://www.sige.com/
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SE2425U Overview

rangechargertm 2.4 ghz bluetooth power amplifier IC preliminary information

SE2425U
RangeCharger
TM
2.4 GHz Bluetooth Power Amplifier IC
Preliminary Information
Applications
Bluetooth
tm
wireless technology (Class 1)
USB dongles, PCMCIA, flash cards, Access Points
Enhanced data rate
Product Description
A monolithic, high-efficiency, silicon-germanium power
amplifier IC, the SE2425U is designed for 2.4 GHz
wireless applications, including Bluetooth
TM
Class 1
basic rate and enhanced data rate applications. It
delivers +25 dBm output power in standard rate GFSK
mode and +19.5 dBm output power in enhanced rate
8DPSK.
The SE2425U provides a digital mode control input for
boosting the linear performance for enhanced data rate
applications.
The SE2425U operates at 3.3 V DC with a peak
efficiency of 43 % in basic rate and 21 % in enhanced
rate mode. The internal bias management allows the
part to only draw 28 mA in Class 2 output power levels.
Output match integrates the high Q inductors to reduce
component count and bill of materials. It uses two
external capacitors to allow for varying loads, such as
switches and filters, in different applications.
The silicon/silicon-germanium structure of the
SE2425U, and its exposed die-pad package, soldered
to the system PCB, provide high thermal conductivity
and a subsequently low junction temperature. This
device is capable of operating at a duty cycle of 100
percent.
Features
Integrated input and inter-stage match
+25 dBm GFSK Output Power
+19.5 dBm 8DPSK Output Power
Low current: 110 mA typical @ P
OUT
= +20 dBm
Ultra low quiescent current: 28 mA
Digital Enable for direct interface to standard
CMOS processors
Mode-control for easy switching between standard
and EDR modes
Gain: 29 dB
3.3 V single supply operation
Ordering Information
Type
SE2425U
SE2425U-R
SE2425U-EK1
Package
3 x 3 x 0.5 mm QFN
3 x 3 x 0.5 mm QFN
N/A
Remark
Sample
Tape & Reel
Evaluation Kit
Functional Block Diagram
EN
(4)
MODE
(5)
VCC0
(2)
VCC1
( 16 )
VCC2
( 15 )
VCC3
( 14 )
Digital Bias & Enable Logic
RF IN
(1)
Input
Match
Inter-
Stage
Match
Inter-
Stage
Match
RF OUT
(7)
SiGe SE2425U
GND
( Paddle )
Figure 1: SE2425U Block Diagram
165-DST-01
Rev 1.3
Apr-05-2006
Confidential
QA040506
1 of 10

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SE2425U SE2425U-R SE2425U-EK1
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