CMM1321 Datasheet, PDF (1/5 Pages) List of Unclassifed Manufacturers – 1.85 to 1.91 GHz 5V, 28.5 dBm, PCS Power Amplifier

CMM1321
Preliminary Product Information
November 1996
(1 of 5)
Features
t 30% Linear Power Added Efficiency
t 28.5 dBm Output Power
(ANSI J-STD-018 CDMA)
t 24 dB Gain
t Tested Under Digital Modulation
t Low Cost SO-8 Surface Mount Package
Applications
t PCS Handsets
t PCS Base Stations
t Wireless Local Loop Subscriber Units
t 1.6 GHz Satellite Subscriber Units
1.85 to 1.91 GHz
5V, 28.5 dBm, PCS
Power Amplifier
Functional Block Diagram
Vg2 4
Vg1 3
GND 2
RF IN 1
5 RF OUT/Vd2
6 RF OUT/Vd2
7 Vd1
8 N/C
Back plane is ground and
must be soldered to thermally
conductive ground plane.
Description
The CMM1321 is a 5 V linear power amplifier
intended for use in PCS handsets, wireless local loop sub-
scriber units and PCS base stations. The CMM1321 offers
maximum performance and flexibility. The amplifier is
designed to support the requirements of PCS CDMA (ANSI
J-STD-018) systems.
The CMM1321 is packaged in a low-cost, space effi-
cient SO-8 power package that gives excellent electrical stabili-
ty and thermal handling performance with a R_Θ of less than
18° C/W. The part is designed to require minimal external cir-
cuitry for bias and matching, simplifying design and keeping
board space and cost to a minimum. Through matching adjust-
ment, equivalent performance can also be achieved for the 1.93
to 1.99 GHz PCS bands as well as the 1.6 GHz satellite bands.
Absolute Maximum Ratings
Parameter
Drain Voltage (+Vd)
Drain Current (Id)
RF Input Power
DC Gate Voltage (-Vg)
Rating
+9.0 V*
1.8 A
+15 dBm*
-4.0 V*
Parameter
Power Dissipation
Thermal Resistance
Storage Temperature
Rating
5W
18°C/W
-65°C to +150°C
Parameter
Operating Temperature
Channel Temperature
Soldering Temperature
Rating
-40°C to +100°C
175°C
260°C for 5 Sec.
* Max (+Vd) and (-Vg) under linear operation. Max potential difference across the device in RF compression (2Vd + |-Vg|) not to exceed the minimum breakdown voltage (Vbr) of +18V.
Recommended Operating Conditions
Parameter
Drain Voltage (+Vd)
Typ
4.5 to 5.1
Units
Volts
Parameter
Operating Temperature (PC Board)
Typ
-30 to +80
Units
°C
Electrical Characteristics
Unless otherwise specified, the following specifications are guaranteed at room temperature with drain voltage (+Vd) = 4.8 V in Celeritek test fixture.
Parameter
Condition
Min
Typ
Max
Units
Frequency Range
1.85
1.91
GHz
Gain
@ Digital power output
22
24
dB
Power Output
Harmonics
Noise Figure
Meets J-STD-018 CDMA mask
2nd @ Digital power output
3rd @ Digital power output
28.0
28.5
dBm
-35
-30
dBc
-40
-35
dBc
4.5
5.0
dB
Return Loss
Efficiency
Pout CDMA
10
dB
27
30
%
Positive Supply Current (Id)
Pout CDMA
500
mA
Quiescent Current (Iq)
No RF
250
mA
Negative Supply Current (-Ig)
0.5
1.0
mA
Negative Supply Voltage (-Vg)
-1.3
-1.7
-2.2
V
3236 Scott Boulevard
Santa Clara, California 95054
Phone: [phone]
Fax: [phone]