MC44829 Datasheet (Motorola) - TV AND VCR I2C PLL TUNING CIRCUIT

MC44829, TV AND VCR I2C PLL TUNING CIRCUIT

Pin 1 2 3, 4 5 6, 7, 8 9 10 11 12 13 14 Function VTUN/VCC2 Gnd HF1/ HF2 VCC1 B4, B5, B6 CA SCL SDA DEC Xtal PHO Description Output of the tuning voltage amplifier.

Needs an external pull *up resistor to drive the varicaps Ground Symmetric HF inputs from local oscillator Supply voltage.

Typica

Order this document by MC44829/D MC44829 PLL Tuning Circuit with I2C Bus The MC44829 is a tuning circuit for TV and VCR tuner applications.

It contains, on one chip, all the functions required for PLL control of a VCO.

This integrated circuit also contains a high frequency prescaler and thus can handle frequencies up to 1.3 GHz.

The circuit has a band decoder that provides the band switching signal for the mixer/oscillator circuit.

The decoder is controlled by the buffer bits.

The MC44829 has p

MC44829 Features

* bits B4 and B6 control the decoder output. B5 is not