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| Preliminary QuikPAC Module Data General description: The QPP-029 QuikPACTM RF power module is an impedance matched Class AB amplifier stage designed for use cellular repeater systems. 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. QPP-029 35W, 824-849MHz Class AB Driver Stage Features: Single Polarity Operation Matched for 50 RF interfaces XeMOS FET Technology Stable Performance QuikPAC System Compatible Flange Mounting 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 Symbol F VD VG IG VSWR TOP jc Min 824 26.0 3.0 Nom 28.0 3.5 50 Max 849 32.0 5.0 1.0 10:1 +90 Units MHz VDC VDC mA Ohms C C/W -20 1.9 Maximum Ratings Parameter Supply (Drain) Voltage Control (Gate) Voltage, VD = 0 VDC Input RF Power Load Impedance for continuous operation without damage Output Device Channel Temperature Lead Temperature during reflow soldering Storage Temperature Symbol VD VG PIN VSWR Value 35 15 2.5 3:1 200 +210 -40 to +100 Units VDC VDC W C C C TSTG Performance at 28VDC & 25C Parameter Supply (Drain) Voltage Quiescent Current (total) (1) Power Output at 1 dB Compression (single tone) Gain at 7W PEP (two tone) Gain Variation over frequency at 7W Output (two tone) Input Return Loss (50 Ref) at 7W PEP (two tone) Drain Efficiency at 35W PEP (two tone) 3rd Order IMD Product (2 tone at 35W PEP;1 MHz spacing) Symbol VD1,2 IDQ P-1 G G IRL Min 27.8 270 35 15.0 12.0 32 Nom 28.0 300 40 16.0 0.2 18.0 35 -29 Max 28.2 330 Units VDC mA W dB 0.5 dB dB % -27 dBc 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 QPP-029 www.xemod.com Rev. B (04-10-02) Page 1 of 3 Performance at 28VDC & 25C (continued) Parameter IMD Variation - 100 kHz to 25 MHz tone spacing 2 Harmonic at 35W Pout(single tone) 3rd Harmonic at 35W Pout(single tone) Group (Signal) Delay Transmission Phase Flatness CDMA ACPR at 7W Pavg CDMA ACPR at 3.5W Pavg Drain Efficiency at 7W CDMA Drain Efficiency at 3.5W CDMA nd Symbol Min Nom 1.0 -40 -45 Max 2.0 Units dB dBc dBc ns degrees dB dB % % d 3.5 0.5 -45 -48 20 12 23 14 Notes: This QuikPAC module requires an externally supplied gate voltage (VGS) on the gate lead (pin 3) to set the operating point (quiescent current- IDQ) of the power transistor. 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. 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. Xemod QuikPAC Data QPP-029 www.xemod.com Rev. B (04-10-02) Page 2 of 3 Package Styles This model is available in the A1F (H10890) package style. Xemod QuikPAC Data QPP-029 www.xemod.com Rev. B (04-10-02) Page 3 of 3 |
Price & Availability of QPP-029
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