RF2157 Datasheet, PDF (1/10 Pages) RF Micro Devices – PCS CDMA/TDMA 3V POWER AMPLIFIER

RF2157
2
PCS CDMA/TDMA 3V POWER AMPLIFIER
Typical Applications
• 3V 1850-1910MHz CDMA PCS Handsets • Spread-Spectrum Systems
• 3V 1750-1780MHz CDMA PCS Handsets • Commercial and Consumer Systems
• 3V TDMA PCS Handsets
• Portable Battery-Powered Equipment
2
Product Description
The RF2157 is a high-power, high-efficiency linear ampli-
fier IC targeting 3V handheld systems. The device is
manufactured on an advanced Gallium Arsenide Hetero-
junction Bipolar Transistor (HBT) process, and has been
designed for use as the final RF amplifier in dual-mode
3V CDMA and TDMA handheld digital equipment,
spread-spectrum systems, and other applications in the
1710MHz to 1910MHz band. The device is packaged in a
compact 4mmx4mm LCC, as well as a 4mmx4mm MLF
(micro leaded package). The frequency response can be
optimized for linear performance over 1710MHz to
1910MHz. The device features a digital mode switch
which can be used to minimize operating current under
low output power conditions.
3.75
3.75
2
1
0.45
0.80
0.28
0.75
TYP
1
0.50
+
1.60 4.00
12°
INDEX AREA 3
Dimensions in mm.
0.75 _1.00
0.65 _0.90
0.05
0.00
1.50 SQ
3.20
4.00
NOTES:
1 Shaded Pin is Lead 1.
2
Dimension applies to plated terminal and is measured between
0.10 mm and 0.25 mm from terminal tip.
The terminal #1 identifier and terminal numbering convention
3 _{shall conform to JESD 95-1 SPP-012. Details of terminal #1}
identifier are optional, but must be located within the zone
indicated. The identifier may be either a mold or marked
feature.
4 Pins 1 and 9 are fused.
5 Package Warpage: 0.05 max.
Optimum Technology Matching® Applied
Si BJT
ü^{GaAs HBT}
GaAs MESFET
Si Bi-CMOS
SiGe HBT
Si CMOS
1 16 15 14 13
VPD1 2
12 VCC1
MODE 3
11 VCC1
VPD2 4
10 VCC
56789
Package Style: LCC, 16-Pin, 4x4
Features
• Single 3V Supply
• 29dBm Linear Output Power
• 24dB Linear Gain
• 35% Linear Efficiency
• On-board Power Down Mode
• 1750MHz to 1910MHz Operation
Ordering Information
RF2157
PCS CDMA Power Amplifier
RF2157 PCBA Fully Assembled Evaluation Board
Functional Block Diagram
RF Micro Devices, Inc.
7625 Thorndike Road
Greensboro, NC 27409, USA
Tel [phone]
Fax [phone]
http://www.rfmd.com
Rev A19 010611
2-187