DESCRIPTION

The M64884FP is a 2-sy stem 1-chip PLL frequency synthesizer IC designed of Analog cordless telephone for North America (ISM band) that can directly enter signal up to 500- MHz in the TX and up to 1GHz in the RX.

Adoption of high performance Bi-CMOS process enables low power consumption type 2-modulus prescaler to be built in the IC to directly signal enter up to 500MHz in the TX and up to 1GHz in the RX. This IC also contains VCO oscillation-Tr in the TX and RX,2-multiple circuit for transmission output and double balance ty pe mixer for the 1st intermediate frequency (1st IF).

.FEATURES

? Low power current Icc=24mA. (@Vcc=3.0V,at TX/RX VCO and 2-multiple circuit output current=2mA setting)

? Built-in 2-modulus prescaler.

? input frequency --- TX:350~500MHz,RX:700~1000MHz.

? input sensitivity --- -15 ~ -5dBm.

? Built-in buffer-Tr for oscillation circuit in the TX and RX.

? Built-in 2-multiple circuit for transmission output.

? Built-in double balance type mixer for the 1st IF.

? Rated current output type charge pump. Output current can be set with serial data. (100,300,500,700μA)

? Built-in B-E Colpitts type oscillation circuit for standard oscillation.

? Software is compatible with M64084AGP.

APPLICATION

900MHz analog cordless telephone (ISM band)