
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 
QPP-008 
Rev. C  (1-30-02)     Page 1 of 
2
QPP-008 
35W, 925-960MHz 
Class AB Driver Stage
QuikPAC Module Data 
General description: 
The
 QPP-008 QuikPAC 
 RF power module is an impedance 
matched Class AB amplifier stage designed for use in the driver stage 
of linear RF power amplifiers for cellular base stations. The power 
transistor is fabricated using Xemod’s advanced design LDMOS 
process. The gate terminal is connected directly to the control voltage 
pin, allowing direct control of the bias. The user must supply the 
proper value of V
GS
 to set the desired quiescent current.  
Standard Operating Conditions 
Parameter 
 Frequency Range 
 Supply (Drain) Voltage 
 Bias (Gate) Voltage  
 Bias (Gate) Current, Average 
 RF Source & Load Impedance 
 Load Impedance for Stable Operation (All Phases) 
 Operating Baseplate Temperature 
 Output Device Thermal Resistance, Channel to Baseplate 
Maximum Ratings
Parameter 
 Supply (Drain) Voltage 
 Control (Gate) Voltage, V
DD
 = 0 VDC 
 Input RF Power 
 Load Impedance for continuous operation without damage 
 Output Device Channel Temperature 
 Lead temperature during reflow soldering 
 Storage Temperature 
Performance at 28VDC & 25oC 
Parameter 
 Supply (Drain) Voltage 
 Quiescent Current (total)  
 Power Output at 1 dB Compression (single tone) 
 Gain at 35W PEP (two tone) 
 Gain Variation over frequency at 35W Output (two tone) 
 Input Return Loss (50 
 Ref) at 35W PEP (two tone) 
 Drain Efficiency at 35W P
out
 (single tone) 
 Drain Efficiency at 35W PEP (two tone) 
 3
rd
 Order IMD Product (2 tone at 35W PEP;1 MHz spacing) 
Features: 
Single Polarity Operation 
Matched for 50 
  
RF interfaces 
XeMOS FET Technology 
Stable Performance 
QuikPAC System Compatible 
QuikClip or Flange Mounting 
Symbol 
F 
V
D
V
G
I
G
 
VSWR
T
OP
Θ
jc 
Min 
925 
26.0 
3.0 
-20 
Nom 
28.0 
3.5 
50 
1.9 
Max 
960 
32.0 
5.0 
1.0 
10:1 
+90 
Units 
MHz 
VDC 
VDC 
mA 
Ohms 
oC 
oC/W 
Symbol 
V
DD
V
G
P
IN
VSWR 
T
STG
Value 
35 
15 
2.5 
3:1 
200 
+210 
-40 to +100 
Units 
VDC 
VDC 
W 
oC 
oC 
oC 
Symbol 
V
D1,2
I
DQ
P
-1
G 
G 
IRL 
η
η
Min 
27.8 
270 
35 
13.5 
11.5 
40 
32 
Nom 
28.0 
300 
40 
15.5 
0.3 
17.5 
45 
36 
-30 
Max 
28.2 
330 
0.5 
-28 
Units 
VDC 
mA 
W 
dB 
dB 
dB 
% 
% 
dBc