DESCRIPTION

The M64894 is a semiconductor integrated circuit consisting of PLL frequency synthesizer for TV/VCR using I2C BUS control. It contains the prescaler with operating up to 1.3GHz, 4 band drivers and tuning Amplifier for direct tuning. Built-in 4 band drivers.

FEATURES

• 4 integrated PNP band drivers (Io=40mA,Vsat=0.2V typ@Vcc1 to 13.2V)

• Built-in high-withstanding voltage tuning Amplifier

• Low power dissipation (Icc=20mA, Vcc=5V)

• Built-in prescaler with input amplifier (Fmax=1.3GHz)

• I2C bus control (Read and write mode)

• X’tal 4MHz is used to realize 3 type of tuning steps (Division ratio 1/512, 1/640, 1/1024)

• Built-in 5-level A/D converter

• Programmable chip address

• 16-pin small SOP/SSOP package

FUNCTION

• 2-modulus prescaler (1/32 and 1/33)

• Built-in 4MHz crystal oscillator and reference divider

• Programmable divider (10-bit M counter, 5-bit S counter)

• Tri-state phase comparator

• Lock detector

• Band switch driver

• Op. Amp for direct tuning

• I2C bus receiver

• 5-level A/D converter

APPLICATION

TV, VCR tuners