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PDF RF2608 Data sheet ( Hoja de datos )
| Número de pieza | RF2608 | |
| Descripción | CDMA/FM UPCONVERTER/BPSK MODULATOR | |
| Fabricantes | RF Micro Devices | |
| Logotipo |  |
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6
Typical Applications
• CDMA/FM Cellular Systems
• Supports Dual-Mode AMPS/CDMA
• Supports Dual-Mode TACS/CDMA
RF2608
CDMA/FM UPCONVERTER/BPSK MODULATOR
• Commercial and Consumer Systems
• Battery-Operated Systems
Product Description
The RF2608 is a complete upconverter designed for
CDMA/FM cellular applications. The IC contains a dou-
ble-balanced mixer stage and an output buffer amplifier
stage. This device may also be used to directly BPSK
modulate a carrier. The mixer is a Gilbert cell with emitter
degeneration resistors to provide high IP3. The output
stage is a class-B, push-pull configuration to reduce the
overall current and still provide a good 50Ω output match.
The unit operates at a supply voltage of 2.7V to 5.0V and
does not require any external matching components
other than coupling capacitors. This circuit is designed as
part of the RFMD CDMA chipset, consisting of a Transmit
IF AGC Amp, this Transmit Upconverter, a Receive LNA/
Mixer, and a Receive IF AGC Amp.
Optimum Technology Matching® Applied
üSi BJT
GaAs HBT
GaAs MESFET
Si Bi-CMOS
SiGe HBT
Si CMOS
IF+ 1
IF- 2
GND 3
LO BYPASS 4
8 RF OUT
7 VCC
6 GND
5 LO
0.196
0.189
8° MAX
0° MIN
0.157
0.150
0.244
0.229
0.034
0.016
0.018
0.014
0.008
0.004
-A-
0.050
Dimensions in mm
0.068
0.053
0.009
0.007
NOTES:
1. Shaded lead is Pin 1.
2. All dimensions are excluding
mold flash.
3. Lead coplanarity -
0.005 with respect to datum "A".
Package Style: SOIC-8
Features
• Supports Dual Mode Operation
• +7dBm Output Intercept Point
• Single 2.7V to 5.0V Power Supply
• Internally Matched Inputs and Outputs
• Buffered Output
• Double-Balanced Mixer
Ordering Information
RF2608
CDMA/FM Upconverter/BPSK Modulator
RF2608 PCBA 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
6
Rev B3 010720
6-15
1 page | ||
| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet RF2608.PDF ] | |
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