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Product Description
Ordering Information
Typical Applications
Features
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
Optimum Technology Matching® Applied
Si BJT
GaAs MESFET
GaAs HBT
Si Bi-CMOS
SiGe HBT
Si CMOS
Quad.
÷2
Input
Select
Gain
Control
Band Gap
Reference
19
4
5
8
9
CDMA IN+
CDMA IN-
FM IN+
FM IN-
23
10
24
14
IN SEL
18
Q OUT+
I OUT+
Q OUT-
13
12
LO+
LO-
16
15
21
22 I OUT-
RF2667
RECEIVE AGC AND DEMODULATOR
• CDMA/FM Cellular Systems
• CDMA PCS Systems
• GSM/DCS Systems
• TDMA Systems
• Spread-Spectrum Cordless Phones
• Wireless Local Loop Systems
The RF2667 is an integrated complete IF AGC amplifier
and quadrature demodulator developed for the receive
section of dual-mode CDMA/FM cellular and PCS appli-
cations and for GSM/DCS and TDMA systems. It is
designed to amplify received IF signals, while providing
100dB of gain control range, and demodulate to base-
band I and Q signals. Noise figure, IP3, and other specifi-
cations are designed to be compatible with the IS-98, and
J-STD-018 Interim Standard for CDMA cellular communi-
cations. This circuit is part of the RFMD line of complete
solutions for digital radio applications. The IC is manufac-
turedonanadvanced15GHz FT Silicon Bipolar process,
and is packaged in a standard miniature 24-lead plastic
QSOP package.
• Similar to RF9957with Higher I/Q Output
Voltage
• Supports Dual Mode Operation
• Digitally Controlled Power Down Mode
• 2.7V to 3.3V Operation
• IF AGC Amp with 100dB Gain Control
RF2667
Receive AGC and Demodulator
RF2667 PCBA
Fully Assembled Evaluation Board
7
Rev A14 010622
NOTES:
1. Shaded lead is Pin 1.
2. All dimensions are excluding mold flash.
3. Lead coplanarity: 0.005 with respect to datum "A".
Dimensions in inches.
0.2440
0.2284
0.344
0.337
0.157
0.150
0.012
0.008
0.025
0.0098
0.0040
-A-
0.0688
0.0532
0.0098
0.0075
0.050
0.016
8° MAX
0° MIN
Package Style: QSOP-24
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