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AMPS

Advanced Mobile Phone System.
US analog cellular telephone.

 

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

Agilent Technologies supplies:
solid state RF components in the mobile unit
solid state RF components in the base station


AMPS Rx-LNA top
Detects and amplifiers incoming signal

handset [869-894 MHZ, 3V operation, good noise figure, low current]:
Discrete Bipolar Transistors: HBFP-0420, HBFP-0405, AT-32011, AT-31011
Integrated Circuits: INA-12063, MGA-85563, MGA-87563

base station LNA (Tower Mount Amplifier, Multi Carrier LNA) [824-849 MHz, good NF]:
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 [824-849 MHz, good NF]:
Discrete Bipolar Transistor: HBFP-0420, HBFP-0405, AT-32011, AT-31011
Discrete GaAS FETs: ATF-21186
Integrated Circuits: MGA-82563, INA-51063


AMPS Down Converter top

Converts output of LNA to IF frequency
handset [869-894 MHz in, 3V operation, low current]:
Integrated Circuits: IAM-91563
Discrete Diodes: HSMS-2829
AT-415, AT-320, AT-310, AT-305 as active mixer

base station radio card [824-849 MHz in]:
Integrated Circuits: IAM-81008
Discrete Diodes: HSMS-2829


AMPS 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


AMPS Switch top

T/R: These FDD systems that uses a duplexer, not a switch.

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 1975 MHz, 3V operation, low current]:
Discrete Diodes: HSMP-3860, HSMP-3890 PIN diodes

base station radio card [to 1975 MHz, fast, low distortion]:
Discrete Diodes: HSMP-3860, HSMP-3880 , HSMP-3890 PIN diodes


AMPS 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
Prescalers: no Agilent Technologies products
Phase Comparators: no Agilent Technologies products

base station radio card [architecture dependant]:
Oscillator: AT-41511, AT-32033, AT-31033, HBFP-0420, HBFP-0405
Buffer Amplifier: INA-31063, MGA-86563, MGA-85563, INA-51063
Prescalers: no Agilent Technologies products
Phase Comparators: no Agilent Technologies products


AMPS Baseband top

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

no Agilent Technologies products


AMPS Tx-Power Amplifier top

amplifies outgoing signal for broadcast, sets to correct power level

handset [824-849 MHz, 3V operation, 1W Pout, high efficiency]:
Discrete Transistor line-up: AT-38043, AT-33225
Detector diodes for power control: HSMS-28xx

base station radio card [869-894 MHz, 10 mw - 1W Pout]:
Discrete Transistor line-up: AT-38043, AT-33225
Detector diodes for power control: HSMS-28xx


AMPS Tx-Driver top

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

handset [824-849 MHz, 3V operation, 0 to 10 mW Pout, high efficiency]:
Discrete Transistors: HBFP-0420, AT-320xx, AT-415xx
Integrated Circuit Amplifiers: MGA-81563

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


AMPS Tx-Modulator top

combines data with carrier
[FM modulated VCO]

3-6V:
AT-415, AT-320, AT-310, AT-305 as VCO


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this page last updated: 1 October 1999