RF2689 Ver la hoja de datos (PDF) - RF Micro Devices
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RF2689 Datasheet PDF : 20 Pages
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Preliminary
7
Typical Applications
• Multimode W-CDMA/GSM/DCS/EDGE
• W-CDMA Systems
RF2689
W-CDMA/GSM/DCS RECEIVE AGC
AND DEMODULATOR
• GSM Systems
Product Description
1.00
0.90
4.00
sq.
The RF2689 is an integrated complete IF AGC amplifier
0.60
and quadrature demodulator designed for the receive
0.24 typ
0.65
0.30
4 PLCS
section of W-CDMA and GSM/DCS applications. It is
designed to amplify received IF signals, while providing
3 0.20
70dB of gain control range, a total of 90dB gain, and
2.10
sq.
demodulate to baseband I and Q signals. This circuit is
designed as part of RFMD’s multimode W-CDMA/GSM/
12°
0.75
DCS chipset, which also includes the RF2688 W-CDMA/
MAX
0.50
7
0.23
GSM/DCS transmit modulator and IF AGC/Upconverter.
0.05
Dimensions in mm.
0.50
0.13
4 PLCS
The IC is manufactured on an advanced 25GHz FT Sili-
con Bi-CMOS process, and is packaged in a 20-pin,
NOTES:
1 Shaded lead is Pin 1.
Note orientation of package.
2 Pin 1 identifier must exist on top surface of package by identification
4mmx4mm, leadless chip carrier.
mark or feature on the package body. Exact shape and size is optional.
3 Dimension applies to plated terminal: to be measured between 0.02 mm
and 0.25 mm from terminal end.
4 Package Warpage: 0.05 mm max.
5 Die Thickness Allowable: 0.305 mm max.
Optimum Technology Matching® Applied
Si BJT
üSi Bi-CMOS
GaAs HBT
SiGe HBT
GaAs MESFET
Si CMOS
GSM IN+ 2
GSM IN- 3
W-CDMA IN+ 4
W-CDMA IN- 5
DIV2
20 1 17 18
Gain
Control
I/Q
Cal
DIV2
Div
12 or 4
Mode Control
& Biasing
14 I OUT+
13 I OUT-
15 CALEN
16 FCLK
12 Q OUT+
11 Q OUT-
19 VREF2V
6
8
7 9 10
Package Style: LCC, 20-Pin, 4x4
Features
• Digitally Controlled Power Down Mode
• 2.7V to 3.3V Operation
• Digital LO Quadrature Divide-by-8
• IF AGC Amp with 70dB Gain Control
• 80dB Maximum Voltage Gain
Ordering Information
RF2689
W-CDMA/GSM/DCS Receive AGC and Demodulator
RF2689 PCBA Fully Assembled Evaluation Board
Functional Block Diagram
RF Micro Devices, Inc.
7625 Thorndike Road
Greensboro, NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
Rev A4 010815
7-39
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