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GSM-900

Pan-European digital cellular standard
for mobile communications via radio telephone.

 

  lna mixer if  
  LNA Down Converter IF  
  switch pll baseband  
  Switch PLL Baseband  
  pa driver mod  
  Power Amp Driver Modulator  
  Required Functions & HP Products  

HP supplies:
solid state RF components in the mobile unit
solid state RF components and power amplifier assemblies in the base station
hybrid assemblies for the infrastructure links


GSM-900 Rx-LNA top
Detects and amplifiers incoming signal

handset [935-960 MHz, 3V operation, good noise figure, low current]:
Discrete Bipolar Transistors: HBFP-0420, HBFP-0405
Integrated Circuits: INA-12063, MGA-87563

base station LNA (Tower Mount Amplifier, Multi Carrier LNA) [890-915 MHz, excellent NF, high dynamic range]:
Discrete GaAS FETs: ATF-10136, ATF-21186
Integrated Circuits: MGA-82563, MGA-83563, MSA-1105
PIN diodes for gain set: HSMP-381x

base station radio card [890-915 MHz, good NF, high dynamic range]:
Discrete GaAS FETs: ATF-21186
Integrated Circuits: MGA-82563, MGA-83563


GSM-900 Down Converter top

Converts output of LNA to IF frequency
handset [935-960 MHz in, 3V operation, low current]:
Integrated Circuits: IAM-91563

base station radio card [890-915 MHz in]:
Integrated Circuits: IAM-81008
Discrete Diodes: HSMS-2829


GSM-900 IF top

Low frequency amplification
handset [70-200 MHz, 3V operation, low current]:
Integrated Circuits: INA-30311

base station radio card [70-200 MHz]:
Integrated Circuits:
high gain: INA-02186, INA-10386, INA-52063, INA-51063
high gain/ma: INA-12063, INA-30311, INA-51063, INA-31063, INA-50311, MSA-0686
high Pout: MSA-1105, MSA-0886, MSA-0486, MSA-0386, INA-10386


GSM-900 Switch top

T/R: provides isolation between transmit and receive paths

Routing: includes or excludes elements from RF path, e.g. LNA switching for large signal case or signal path routing in multi-mode phones.

handset [to 960 MHz, 3V operation, low current]:
Discrete Diodes: HSMP-3860, HSMP-3890 PIN diodes

base station radio card [to 960 MHz, fast, low distortion]:
Discrete Diodes: HSMP-3860, HSMP-3880 , HSMP-3890 PIN diodes


GSM-900 PLL top

Provides stable carrier for frequency conversion and/or modulator

handset [architecture dependant, 3V operation, low current]:
Oscillator: AT-32033, AT-31033, HBFP-0420, HBFP-0405
Buffer Amplifier: INA-31063, MGA-85563
Synthesizer: HPLL-8001 (CMOS frequency synthesizer)
Prescalers: no HP products
Phase Comparators: no HP products

base station radio card [architecture dependant]:
Oscillator: AT-32033, AT-31033, HBFP-0420, HBFP-0405
Buffer Amplifier: INA-31063, MGA-86563, MGA-85563, INA-51063
Synthesizer: HPLL-8001 (CMOS frequency synthesizer)
Prescalers: no HP products
Phase Comparators: no HP products


GSM-900 Baseband top

provides data inputs to modulator, converts output of IF into information

no HP products


GSM-900 Tx-Power Amplifier top

amplifies outgoing signal for broadcast, sets to correct power level

handset [824-849 MHz, 3V operation, 3.5W Pout, 12 % duty factor]:
Discrete Transistor line-up: AT-38043 plus AT-36408
Detector diodes for power control: HSMS-28xx

base station radio card [869-894 MHz, 10 mw - 1W Pout]:
Discrete Transistor line-up: AT-38043 plus AT-36408
Detector diodes for power control: HSMS-28xx


GSM-900 Tx-Driver top

"glue" part that amplifies modulator output sufficiently to drive power chain

handset [824-849 MHz, 3V operation, 0 - 10 mW Pout, 12 % duty factor]:
Discrete Transistors: HBFP-0420, AT-320xx, AT-41511
Integrated Circuit Amplifiers: MGA-81563

base station radio card [869-894 MHz, 0 - 10 mW Pout, 12 % duty factor]:
Discrete Transistors: HBFP-0420, AT-320xx, AT-415xx
Integrated Circuit Amplifiers: MGA-81563, INA-52063, MSA-0611, MSA-2111


GSM-900 Tx-Modulator top

combines data with carrier
[900 MHz, constant envelope phase modulation of moderate linearity; <6 volt operation. May be direct conversion, dual conversion, or offset loop]

3V:
HPMX-2007 (dual conversion architecture)
HPMX-2006 (upconverter)

5V:
HPMX-2003 (direct modulation - base station)



 
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