Product Operation Introduction LPA1900-160-SC01 V1.0 2009-07-06 Bravo Tech Inc.
Version V1.
Content Part A, Summary......................................................................... 4 Part B, Connector and definition................................................ 4 Part C, LED Indication ................................................................ 6 Part D, Specifications .................................................................. 6 Part E, Declare ................................................................................ 7 Part F, Information to the User ................
Part A, Summary Bravo Tech Inc’s newly introduced High Power Multi-Carrier Power Amplifier platform provides higher downlink EIRP to extend the coverage of existing networks. This multi-carrier based product platform can also work with customized BTS to extend capacity of original BTS with a low system total cost.
1、 RF Part Port Name Type Warning Input SMA Female (50Ω) Output N Female (50Ω) Normal :-6.2dBm Maximum input power +1dBm. Normal :52dBm Maximum output power 52.5dBm. 2、 DC power Port Name DC IN Type NO D-Sub type DSCD175PS1M (Male) A1、A2 VDC type +30V, range 24~32V A3、A4 GND to VDC 3、 Communication Connector type: USB Note: Manufacture use to debug.
Part C, LED Indication Figure 1 Power Amplifier Indicators Table 1 Specification of Power Amplifier Indicator Lights Item 1 2 3 Label Color State MAJOR ALM Red On MINOR ALM Yellow Off RF ON Green Off MAJOR ALM Red Off MINOR ALM Yellow On RF ON Green Off MAJOR ALM Red Off MINOR ALM Yellow Off RF ON Green On Part D, Specification Power amplifier alarms and shuts down Power amplifier alarms but still works Power amplifier works normally Specifications 1、 Electrical Sp
<-53dBc @±10MHz RF Gain @+25℃, Po=52dBm(max) Normal Operating Voltage 57.0 ± 1.0dB @ frequency range, +30Vdc, room temp. +30Vdc±1.0Vdc Operating Voltage +29Vdc ~ +31Vdc RF Gain Variation over Voltage & Temperature ±1.5dB @ +29≤Vsup≤+31V, -20℃ to +50℃ Gain Flatness Peak to Peak 0.
The device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device not cause harmful interference, and (2) this device must accept any interference received, including interference that many cause undesired operation. Part F, Information to the User This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules.
3). Power meter: Agilent E4418B/E8481A 4). Network analyzer Agilent 8753E or R3765CH 2、 test condition description 1). Power supply cables and connectors: Port Name DC IN Type NO DESCRIPTION D-Sub type DSCD175PS1M (Male) 1、2 VDC 3、4 GND to VDC 2).Alarm ports (D-SUB DSCD175PS1M male connector) Pin#1: N.
Turn on power supply and check the static current whose normal value should be 10A~ 12A. When the PA works with full power, the current should be 33A~35A. 4、RF performance test procedure: 1) Spectrum emission Test flow chart: Signal Generator 30dB Attenuator LPA1900-120 -SC01 Cable2 Power Supply 20dB Attenuator 20dB Attenuator Cable1 10dB coupler Spectrum Analyzer Cable3 Power Meter Figure 1 Purpose: Check the quality of amplified signal.
RF cable Instruction 1. Set up the structure according to the figure 1. 2. Signal generator setup: signal type:1. 3G 3Carriers 3FA, PAR：8.0dB 2. ats_3gpp_fdd_fwd_tm1_64ch_sc0_v5pt1 3. Spectrum analyzer setup: RBW→30KHz, VBW→300KHz, Center frequency: 1960MHz, SPAN→40MHz, Sweep time: 1S Spectrum Analyzer’s offset value according the attenuation from PA output to input port of spectrum analyzer. 4.
2) Gain flatness Test flow chart: Signal Generator 30dB Attenuator LPA19100-16 0-SC01 Cable2 Power Supply 20dB Attenuator 20dB Attenuator Cable1 10dB coupler Spectrum Analyzer Cable3 Power Meter Figure 4 Purpose: Check the gain at different frequency point. Test setup list Signal generator: IFR3413 or the same level instrumentation. Power meter: Agilent E4418B or the same level instrumentation. Spectrum analyzer: R&S FSEA or the same level instrumentation.
3) Gain Variation & Detect Accuracy & Current consumption Test flow chart: Signal Generator 30dB Attenuator LPA1900-160 -SC01 Cable2 Power Supply 20dB Attenuator 20dB Attenuator Cable1 10dB coupler Cable3 Spectrum Analyzer Power Meter Figure 5 Purpose: Check the variation of gain over voltage. Measure the difference between forward power and detect power. Measure the efficiency of PA. Test setup list Signal generator: IFR3413 or the same level instrumentation.
2. Signal generator setup: 3. Spectrum analyzer setup: RBW→30KHz, VBW→300KHz, Center frequency is 1960MHz, SPAN→40MHz, and Spectrum Analyzer’s offset value according the attenuation from PA output to input port of spectrum analyzer. 4. Power meter must to be calibration and set the offset value according to attenuation from PA output to power sensor. 5. Input PA voltage setup +30V. 6. Turn on the signal generator; adjust the output power from -6.2dBm to -23dBm with -1dB step. 7.
