11-263
Product Description
Ordering Information
Typical Applications
Features
Functional Block Diagram
RF Micro Devices, Inc.
7628 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
InGaP/HBT
GaN HEMT
SiGe Bi-CMOS
IF IN+
IF IN-
VCC IF
IF OUT+
IF OUT-
MODE0
MCLK
VCC PLL4
SDI
R BIAS
VCC RF2
VCC RF1
DIG REG
VREF
SCLK
SSB
3rd Order
Bes LPF
3rd Order
Bes LPF
3rd Order
Bes LPF
3rd Order
Bes LPF
IF Synth Analog
RF PLL
Voltage
Regulator
RX IF
Voltage
Regulator 1
RX IF
Voltage
Regulator 2
D/A
MUX
LC Trap
RF Synth Analog
RF PLL
Voltage
Regulator
Digital
Voltage
Regulator
SPI Serial Port
Frac-N Digital
P & R
11
31
30
29
28
27
26
25
1
32
2
3
6
7
8
5
4
12
13
14
15
16
22
23
24
17
21
20
19
18
9
10
RF2958
2.4GHz SPREAD-SPECTRUM TRANSCEIVER
• IEEE 802.11b WLANs
• Wireless Residential Gateways
• Secure Communication Links
• High Speed Digital Links
• Wireless Security
• Digital Cordless Telephones
The RF2958 is a single-chip transceiver specifically
designed for IEEE 802.11b applications. The part
includes all required transceiver functions. The receiver
includes: an LNA and downconverter; complete synthe-
sizers and VCO’s; direct conversion from IF receiver with
variable gain control; quadrature demodulator; I/Q base-
band amplifiers; and, on-chip baseband filters. For the
transmit side, a QPSK modulator and upconverter are
provided along with the synthesizer, VCO, and PA driver.
A minimum number of external components are required,
resulting in an ultra-compact low-cost radio design. Two-
cell or regulated three-cell (3.6V maximum) battery appli-
cations are supported by the part. The RF2958 is also
part of a 2.4GHz chipset along with our high-efficiency
GaAs HBT PA and the RF3002 Baseband Processor.
• Complete IEEE802.11b Transceiver
including VCOs
• Small 32-pin Leadless Package
• Minimal External Components Required
• Low Receive Current
• High Performance Super-het Architecture
RF2958
2.4GHz Spread-Spectrum Transceiver
RF2958TR13
2.4GHz Spread-Spectrum Transceiver (Tape & Reel)
RF2958 PCBA
Fully Assembled Evaluation Board
0
Rev A0 050209
5.000
± 0.050
5.000
± 0.050
SEATING
PLANE
SCALE:
NONE
0.080 C
0.025
± 0.010
0.100
C
M
-C-
0.900
± 0.070
3.400
0.400
± 0.050 TYP
0.500
TYP
3.400
Shaded lead is pin 1.
Dimensions in mm.
Package Style: QFN, 32-Pin, 5x5
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