XEMOD QPP-005 Datasheet

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. A (11-21-00) Page 1 of 2

QPP-005

120W, 869-894MHz
QuikPAC Module Data Class AB Power Stage

General description:

The QPP-005 QuikPAC™ RF power module is an impedance
matched Class AB amplifier stage designed for use in the output
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 VGS to set the desired quiescent current.

Features:

Single Polarity Operation
Matched for 50 Ω 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

3.5 VDC

Bias (Gate) Current, Average

IG

2.0 mA

RF Source & Load Impedance

Ω

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

Θjc

0.8 ºC/W

Maximum Ratings

Parameter

Symbol Value Units

Supply (Drain) Voltage VDD 35 VDC
Control (Gate) Voltage, VDD = 0 VDC VG 15 VDC
Input RF Power PIN 10 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

27.5 28.0 28.5 VDC

Quiescent Current (total) (1)

IDQ

900 1,000 1,100 mA

Power Output at 1 dB Compression (single tone)

P-1

120 130 W

Gain at 24W PEP (two tone)

G

11.5 12.5 dB

Gain Variation over frequency at 24W Output (two tone)

∆G

0.3 0.5 dB

Input Return Loss (50 Ω Ref) at 24W PEP (two tone)

IRL

11.0 12.5 dB

Drain Efficiency at 120W P

out

(single tone)

η

35 40 %

Drain Efficiency at 120W PEP (two tone)

η

28 32 %

3rd Order IMD Product (2 tone at 120W PEP;1 MHz spacing)

-28 -26 dBc

Xemod QuikPAC Data www.xemod.com Rev. A (11-21-00) Page 2 of 2
QPP-005

Performance at 28VDC & 25ºC (continued)

Parameter Symbol Min Nom Max Units

IMD Variation – 100 kHz to 25 MHz tone spacing

1.0 2.0 dB

2nd Harmonic at 120W P

out

(single tone)

dBc

3rd Harmonic at 120W P

out

(single tone)

dBc

Group (Signal) Delay

τd

4.0 ns

Transmission Phase Flatness

0.5 degrees

Notes:

This QuikPAC module requires an externally supplied gate voltage (VGS) on each gate lead (pins 1 and 5) to set the
operating point (quiescent current- IDQ) of the power transistors. VGS may be safely set to any voltage in the range listed in
the table. This permits a wide range of quiescent current to be used. Since the operating characteristics of the module will
vary as IDQ changes, the bias setting will depend on the application. The data provided in the Performance section of this
data sheet was obtained with IDQ set to a value within the range listed (a nominal value ±10%). This particular value was
chosen to optimize gain, IMD performance, and efficiency simultaneously.

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 VGS corresponding to a specific IDQ will vary from module to module and may vary between the two sides of a dual RF
module by as much as ±0.10 volts. This is due to the normal die-to-die variation in threshold voltage of LDMOS transistors.

Since the gate bias of an LDMOS transistor changes with device temperature, it may be necessary to use a VGS supply with
thermal compensation if operation over a wide temperature range is required.

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.

Package Styles

This model is available in both B2 (H10537) and B2F (H10894) package styles. Style B2F is shown for reference. Please
see the applicable outline drawing for specific dimensions.