STB4395

STB4395 CT2 RECEIVER/TRANSMITTER FULLY INTEGRATED DOUBLE SUPERHETERODYNE RECEIVER OPERATION FROM 800MHz TO 1000MHz www.DataSheet4U.com RECEIVER OUTPUT AS BITSTREAM FULLY INTEGRATED TRANSMITTER TRANSMITTER INPUT I/Q/REFIQ OR I/I, Q/Q INTEGRATED POWER AMPLIFIER CT2 PA SWITCH-ON PROFILE INTEGRATED VCO’s INTEGRATED SYNTHESIZERS INTEGRATED CHANNEL SELECT LOGIC ON CHIP INTEGRATED VOLTAGE REGULATION SUPPLY VOLTAGES FROM 3.0V TO 5.5V . . . . . . . . . . . . ADVANCE DATA DESCRIPTION The STB4395(A) is a fully integrated receivertransmitter designed for CT2 applications, and incorporates all the VCO’s, synthesizers, PLLs, and channel select logic, to make a fully functional ”single chip” radio. The receiver is of the double superhet architecture and operates from an aerial input (via a SAW filter) to bitstream output to CT2 format, whilst the transmitter operates from I/Q inputs to +13dBm at the final frequency. A single (external) frequency reference is all that is required to give full coverage over the range of 800 to 1000MHz.The on-off slope of the Transmit PAis governed internally to give the required switch-on ramp, whilst the output can be swiched from low to high power by means of an external digital control signal. The channelselect is controlled from a digital serial input, and allows continuous channel control from 800 to 1000MHz. T h e S TB 4 3 9 5 e x is t s in t wo v ersio n s: the STB4395, which has I/I, Q/Q transmit data input/outputs, is designed to operate with the ...