PLUTO

Features:

Dual mode AMPS/CDMA compatible
Low Power/Low Voltage operation
Standard baseband I and Q interface
4 Input Auxiliary ADC
Synthesisers




Application

Dual Mode CDMA/AMPs digital cellular telephones




Pinout






Specifications

Supply voltage ............................................-0.3 to 3.9V
Voltage applied to any other pin......... -0.3 to Vcc+0.3V
Operating junction temperature .........................150°C
Storage temperature ...........................-55°C to 150°C
ESD (human body model)....................................... 2kV




Description

The PLUTO baseband interface circuit is designed for use in dual mode CDMA/AMPS digital cellular telephones. In the telephone, Pluto provides the interface between the radio (RF & IF) components and the baseband digital signal processor. Pluto is part of a complete chipset solution for CDMA phones entitled the Planet chipset.

The receive (RX) section PLUTO converts the analog in-phase and quadrature (I & Q) signals into equivalent digital signals whilst the transmit (TX) circuits perform the complementary function of translating digital baseband information into the analog equivalent signals required for the modulator in the radio circuits. VHF PLLS PLUTO are also included for second RXLO and TXIF generation.

PLUTO PLUTO also contains a 4 channel general purpose ADC which is included for such purposes as environmental and signal strength monitoring.