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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
Gain
Control
Band Gap
Reference
1
MOD OUT+
10
Q SIG
Q REF
I REF
I SIG
LO1-
LO1+
13
17
Quad.
÷2
27
Σ
MOD OUT-
MIX IN-
MIX IN+
24
25
20
19
22
21
15
8
9
2
3
5
4
RF2658
TRANSMIT MODULATOR, IF AGC, AND
UPCONVERTER
• CDMA/FM Cellular Systems
• CDMA PCS Systems
• GSM/DCS Systems
• TDMA Systems
• Spread Spectrum Cordless Phones
• Wireless Local Loop Systems
The RF2658 is an integrated complete Quadrature Modu-
lator, IF AGC amplifier, and Upconverter developed for
the transmit section of dual-mode CDMA/FM cellular and
PCS applications and for GSM/DCS and TDMA systems.
It is designed to modulate baseband I and Q signals,
amplify the resulting IF signals while providing 95dB of
gain control range, and perform the final upconversion to
UHF. Noise Figure, IP3, and other specifications are
designed to be compatible with the IS-98 Interim Stan-
dard for CDMA cellular communications. This circuit is
part of RFMD’s line of complete solutions for digital radio
applications. The IC is manufactured on an advanced
15GHz FT Silicon Bipolar process, and is supplied in a
28-lead plastic SSOP package.
• Similar to RF9958with increased IF range
• Supports Dual Mode Operation
• Digitally Controlled Power Down Modes
• 2.7V to 3.3V Operation
• Double-Balanced UHF Upconvert Mixer
• IF AGC Ampwith95dBGainControl
RF2658
Transmit Modulator, IF AGC, and Upconverter
RF2658 PCBA
Fully Assembled Evaluation Board
5
Rev A8 010720
6.20
5.79
3.99
3.81
10.01
9.80
7°
8°
0°
1.27
0.38
0.25
0.10
1.73
1.47
0.635
TYP
0.36
0.23
TYP
0.25
0.10
PIN 1
INDENT
NOTES:
1. Shaded lead is Pin1.
2. Lead frame material: Copper 194
3. Mold flash shall not exceed 0.006 (0.15 mm) per end.
4. Interlead flash shall not exceed 0.010 (0.25 mm) per side.
5. All dimensions are excluding mold flash and protrusions.
Package Style: QSOP-28
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