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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
RSSI
2
4
8
10
12
13
15
14
16
18
20
21
22
23
24
25
27
30
31
34
35
36
37
39
44
46
Gain
Control
43
VCO OUT
MOD IN
RESNTR-
RESNTR+
DATA REF
MIX OUT-
MIX OUT+
MIX IN
MIX CA
LNA OUT
RX IN
TX OUT
28
DEMOD IN
26
FM OUT
RF2926
UHF DUAL CONVERSION TRANSCEIVER
• Wireless Meter Reading
• Keyless Entry Systems
• 433/868/915MHz ISM Band Systems
• Wireless Data Transceiver
• Wireless Security Systems
• Battery Powered Portable Devices
The RF2926 is a monolithic integrated circuit intended for
use as a low cost FM transceiver. The device is provided
in 48-lead plastic TQFP packaging and is designed to
provide a dual conversion, half-duplex transceiver. The
chip is intended for linear (AM, FM) or digital (ASK, FSK,
OOK) applications in the North American 915MHz and
European 433/868MHz ISM bands. The integrated VCO
has a buffered output to feed the RF signal back to the
PLL IC to form the frequency synthesizer. Separate RX
ENABL, TX ENABL, and PLL ENABL lines allow for half
duplex operation as well as turning on the VCO to give
the synthesizer time to settle and complete power down-
mode.
• Monolithic Integrated Transceiver
• 2.7V to 5.0V Supply Voltage
• Narrow Band and Wide Band FM/FSK
• 300MHz to 1000MHz Frequency Range
• 130MHz Bandwidth in First IF
• 5mW Output Power at 433MHz
RF2926
UHF Dual Conversion Transceiver
RF2926 PCBA
Fully Assembled Evaluation Board
11
Rev A5 010404
.362
.346
.280
.272
7°MAX
0°MIN
.007
.011
.007
.362
.346
.280
.272
.057
.053
.006
.002
.020
.031
.021
MAX
Package Style: LQFP-48
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