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 1.3 GHz. 4 band drivers and tuning amplifier for direct tuning. Built-in 4 band drivers.

Features
• 4 integrated PNP band drivers (IO = 40 mA, Vsat = 0.2 V Typ@VCC1 to 13.2 V)
• Built-in high-withstanding voltage tuning Amplifier
• Low power dissipation (ICC = 20 mA, VCC = 5 V)
• Built-in prescaler with input amplifier (Fmax = 1.3 GHz)
• I2C bus control (Read and write mode)
• X’tal 4 MHz 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 4 MHz 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