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 DCS 1800
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DCS 1800

European / Global digital standard for personal 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 & Agilent Technologies products  

Agilent Technologies supplies:
solid state RF components in the mobile unit
solid state RF components in the base station
hybrid assemblies for the infrastructure links


DCS 1800 Rx-LNA top
Detects and amplifiers incoming signal

handset [1710-1785 MHz, 3V operation, good noise figure, low current]:
Discrete Bipolar Transistors: HBFP-0420, HBFP-0405
Integrated Circuits: MGA-87563

base station LNA (Tower Mount Amplifier, Multi Carrier LNA) [1805-1880 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 [1805-1880 MHz, good NF, high dynamic range]:
Discrete GaAS FETs: ATF-21186
Integrated Circuits: MGA-82563, MGA-83563


DCS 1800 Down Converter top

Converts output of LNA to IF frequency
handset [1710-1785 MHz in, 3V operation, low current]:
Integrated Circuits: IAM-91563
base station radio card [1805-1880 MHz in]:
Integrated Circuits: IAM-81008
Discrete Diodes: HSMS-2829


DCS 1800 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


DCS 1800 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 1880 MHz, 3V operation, low current]:
Discrete Diodes: HSMP-3860, HSMP-3890 PIN diodes

base station radio card [to 1880 MHz, fast, low distortion]:
Discrete Diodes: HSMP-3860, HSMP-3880 , HSMP-3890 PIN diodes


DCS 1800 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-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


DCS 1800 Baseband top

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

no Agilent Technologies products


DCS 1800 Tx-Power Amplifier top

amplifies outgoing signal for broadcast, sets to correct power level

handset [1805-1880 MHz, 3V operation, 1W Pout, 12 % duty factor]:
Discrete Transistors (power to 100 mW): AT-380xx, ATF-21186
Integrated Circuit Amplifiers (power to 100 mW): MGA-83563, MGA-82563, MGA-81563
Detector diodes for power control: HSMS-28xx

base station radio card [1710-1785 MHz, 1W Pout, 12 % duty factor]:
Discrete Transistors (power to 100 mW): AT-380xx, ATF-21186
Integrated Circuit Amplifiers power to 100 mW): MGA-82563, MGA-83563
Detector diodes for power control: HSMS-28xx


DCS 1800 Tx-Driver top

amplifies outgoing signal for broadcast, sets to correct power level

handset [1805-1880 MHz, 3V operation, 0 to 10 dBm Pout, 12 % duty factor]:
Discrete Transistors: HBFP-0420, AT-320xx
Integrated Circuit Amplifiers: MGA-81563

base station radio card [1710-1785 MHz, 0 to 10 dBm Pout, 12 % duty factor]:
Discrete Transistors: HBFP-0420, AT-320xx
Integrated Circuit Amplifiers: MGA-81563


DCS 1800 Tx-Modulator top

combines data with carrier
[1800 MHz, constant envelope phase modulation of moderate linearity; < 3 volt operation, dual conversion architecture]

3V:
HPMX-2007


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this page last updated: 1 October 1999