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XEMOD RESERVES THE RIGHT TO MAKE CHANGES TO THIS SPECIFICATION WITHOUT FURTHER NOTICE. BEFORE THE
PRODUCT DESCRIBED HERE IS WRITTEN INTO SPECIFICATIONS OR USED IN CRITICAL APPLICATIONS, THE PERFORMANCE
CHARACTERISTICS SHOULD BE VERIFIED BY CONTACTING XEMOD.
Xemod QuikPAC Data www.xemod.com Rev. D (07-26-01) Page 1 of 3
QPP-018
QPP-018
200W, 869-894MHz
QuikPAC Module Data Class AB Power Stage
General description:
The QPP-018 QuikPAC™ RF power module is a matched Class
AB amplifier stage designed for use in the output stage of linear RF
power amplifiers for cellular base stations. The power transistors are
fabricated using Xemod’s advanced design LDMOS process. This
unit has a factory set, regulated and temperature compensated gate
bias, eliminating the need for the user to provide adjustable gate
bias voltage circuits and make individual bias adjustments during
stage alignment.
Features:
Single Polarity Operation
Matched for 50 W RF interfaces
XeMOS FET Technology
Stable Performance
QuikPAC System Compatible
QuikClip or Flange Mounting
Standard Operating Conditions
Parameter Symbol Min Nom Max Units
Frequency Range
F
869 894 MHz
Supply (Drain) Voltage
VD
26.0 28.0 32.0 VDC
Bias (Gate) Voltage
VG
11.0 12.0 13.0 VDC
Bias (Gate) Current, Average
IG
40 mA
RF Source & Load Impedance
W
50 Ohms
Load Impedance for Stable Operation (All Phases) VSWR 10:1
Operating Baseplate Temperature T
OP
-20 +90 ºC
Output Device Thermal Resistance, Channel to Baseplate
Qjc
0.4 ºC/W
Maximum Ratings
Parameter
Symbol Value Units
Supply (Drain) Voltage VD 35 VDC
Control (Gate) Voltage, VD = 0 VDC VG 15 VDC
Input RF Power PIN 20 W
Load Impedance for continuous operation without damage VSWR 3:1
Output Device Channel Temperature 200 ºC
Lead Soldering Temperature +190 ºC
Storage Temperature T
STG
-65 to +150 ºC
Performance at 28VDC & 25ºC
Parameter Symbol Min Nom Max Units
Supply (Drain) Voltage
V
D1,2
27.8 28.0 28.2 VDC
Quiescent Current (total)
IDQ
1,800 2,000 2,200 mA
Peak Envelope Power at 1 dB Compression (two tone)
P-1
200 W
Gain at 40W PEP (two tone)
G
12.0 12.5 dB
Gain Variation over frequency at 40W PEP (two tone)
DG
0.3 0.5 dB
Input Return Loss (50 W Ref) at 40W PEP (two tone)
IRL
10 14 dB
Drain Efficiency at 200W PEP (two tone)
h
29 33 %
3rd Order IMD Product (2 tone at 200W PEP;1 MHz spacing)
-28 -26 dBc
IMD Variation – 100 kHz to 25 MHz tone spacing
1.0 2.0 dB
2nd Harmonic at 200W P
out
(single tone)
dBc
3rd Harmonic at 200W P
out
(single tone)
dBc
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Xemod QuikPAC Data www.xemod.com Rev. D (07-26-01) Page 2 of 3
QPP-018
Performance at 28VDC & 25ºC (continued)
Parameter Symbol Min Nom Max Units
Group (Signal) Delay
td
4.7 4.9 ns
Transmission Phase Flatness
0.5 1.0 degrees
CDMA ACPR at 40W Pout AVG
45 dB
CDMA ACPR at 20W Pout AVG
50 dB
CDMA Drain Efficiency at 40W Pout AVG
h
18 20 %
CDMA Drain Efficiency at 20W Pout AVG
h
12 14 %
Performance at 28VDC Over Temperature
Parameter Symbol Min Nom Max Units
Peak Envelope Power at 1 dB Compression (two-tone)
P-1
200 W
Gain at 200W PEP (two tone)
G
Gain Variation over frequency at 40W Output (single tone)
DG
dB
Input Return Loss (50 W Ref) at 40W PEP (two tone)
IRL
dB
Drain Efficiency at 200W PEP (two tone)
h
%
3rd Order IMD Product (2 tone at 200W PEP;1 MHz spacing)
dBc
Group (Signal) Delay
td
4.65 4.95 ns
Transmission Phase Flatness
0.5 1.0 degrees
Notes:
This GR-version QuikPAC module has an internally regulated gate voltage that is preset at the factory. A voltage of +12VDC
(±1V) should be applied to each gate lead (pins 1 and 5). No further adjustment is required. The gate voltage is thermally
compensated for operation over the temperature range listed in the data sheet. Although the module will operate with lower
voltages applied, the internal regulator is not functioning and the specified performance may not be achieved.
Gate voltage must be applied coincident with or after application of the drain voltage to prevent potentially destructive
oscillations. Bias voltages should never be applied to a module unless it is terminated on both input and output.
The quiescent current set during manufacture will be within the range specified in the Performance section (nominal ±10%)
and is selected to balance IMD, input return loss, and efficiency. This setting is suitable for most applications. Modules with
different optimization profiles are available by special order.
Internal RF decoupling is included on all bias leads. No additional bypass elements are required, however some
applications may require energy storage on the drain leads to accommodate time-varying waveforms.
The RF leads are internally protected against DC voltages up to 100V. Care should be taken to avoid video transients that
may damage the active devices.
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Xemod QuikPAC Data www.xemod.com Rev. D (07-26-01) Page 3 of 3
QPP-018
Package Styles
This model is available in both C (H10549) and CF (H10895) package styles. Style CF is shown for reference. Please see
the applicable outline drawing for specific dimensions.
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