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HP supplies:
solid state RF components for the data terminal
Detects and amplifiers incoming signal
[US standard for data communication via AMPS cellular infrastructure]
3V:
AT-415, AT-320, AT-310, AT-305, HBFP-0405, HBFP-0420
INA-12063
5V:
INA-51063, MSA-2111
| CDPD Rx-Down Converter |
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Converts output of LNA to IF frequency
[900 MHz to 100 MHz conversion, <6 volt operation]
3V:
AT-415, AT-320, AT-310, AT-305 transistors as active mixer
IAM-91563 IC mixers
HSMS-820x Schottky diodes
5V:
IAM-81008 IC mixers
Low frequency amplification
[~70-100 MHz; <6 volt operation]
3V:
INA-30311, INA-32063
5V:
INA-51063, MSA-0611 and other MSA and INA gain blocks
provides isolation between transmit and receive paths
[900 MHz]
FDD system that uses a duplexer, not a switch.
No HP products
Provides stable carrier for frequency conversion and/or modulator
[TBD, <6 volt operation]
oscillator : AT-415, AT-320, AT-310, AT-305
buffer : AT-415, AT-320, AT-310, AT-305,
INA-31063 or other MGA, INA, and MSA series gain blocks
synthesizer: HPLL-8001 (CMOS frequency synthesizer)
prescalers: no HP products
phase comparator: no HP products
provides data inputs to modulator, converts output of IF into information
no HP products
| CDPD Tx-Power Amplifier |
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amplifies outgoing signal for broadcast, sets to correct power level
[900 MHz, 0.6 W Pout @ antenna, <6 volt operation]
3-6V:
AT-380, AT-33225 transistors
HSMS-28xx detector diodes for power control
"glue" part that amplifies modulator output sufficiently to drive power chain
[900 MHz, 0 to 10 dBm Pout, <6 volt operation]
3V:
AT-320, AT-420, and AT-415 transistors
ATF-10xxx, ATF-21186 FETs
MGA-81563, INA-34063
5V:
MSA-0611, MSA-2111
combines data with carrier
[vector modulator or modulated VCO depending on architecture]
[FM modulated VCO]
AT-415, AT-320, AT-310, AT-305 as VCO
3V:
[Vector modulator design]
HPMX-2007
HPMX-2006 as upconverter
5V:
HPMX-2003
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