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