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RF2658 Datasheet

  • RF2658

  • TRANSMIT MODULATOR, IF AGC, AND UPCONVERTER

  • 10頁

  • RFMD

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RF2658
5
Typical Applications
鈥?CDMA/FM Cellular Systems
鈥?CDMA PCS Systems
鈥?GSM/DCS Systems
鈥?TDMA Systems
鈥?Spread Spectrum Cordless Phones
鈥?Wireless Local Loop Systems
TRANSMIT MODULATOR, IF AGC, AND
UPCONVERTER
Product Description
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, IP
3
, 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鈥檚 line of complete solutions for digital radio
applications. The IC is manufactured on an advanced
15GHz F
T
Silicon Bipolar process, and is supplied in a
28-lead plastic SSOP package.
Optimum Technology Matching廬 Applied
PIN 1
INDENT
6.20
5.79
3.99
3.81
0.25
0.10
0.36
TYP
0.23
0.635
TYP
5
MODULATORS AND
UPCONVERTERS
10.01
9.80
7擄
1.73
1.47
0.25
0.10
1.27
0.38
8擄
0擄
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.
眉
Si BJT
Package Style: QSOP-28
GaAs HBT
SiGe HBT
GaAs MESFET
Si CMOS
Si Bi-CMOS
Features
鈥?Similar to RF9958with increased IF range
鈥?Supports Dual Mode Operation
MODE
GC
1
27
鈥?Digitally Controlled Power Down Modes
鈥?2.7V to 3.3V Operation
鈥?Double-Balanced UHF Upconvert Mixer
鈥?IF AGC Amp with 95 dB Gain Control
Q SIG 2
Q REF 3
LO1- 8
LO1+ 9
I REF 5
I SIG 4
Band Gap
Reference
Quad.
梅2
Gain
Control
危
25 MOD OUT+
24 MOD OUT-
21 MIX IN-
22 MIX IN+
Ordering Information
13
PD1
15
PD2
17
RF OUT
19
LO2+
20
LO2-
10
G OUT
RF2658
RF2658 PCBA
Transmit Modulator, IF AGC, and Upconverter
Fully Assembled Evaluation Board
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
Rev A8 010720
5-61

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