3-WIRE AND I2C BUS SYSTEM, 2.3 GHz DIRECT TWO MODULUS-TYPE FREQUENCY SYNTHESIZER FOR CATV

The TD7623AFN can be combined with a micro CPU to create a highly functional frequency synthesizer. The control data conforms to 3-wire bus and standard I2C bus formats. BUS-SW can be used to easily switch for easy tuner system set-up.

FEATURES
● Direct two modulus-type frequency synthesizer
● Standard I2C bus format control with built-in read mode
● 3-wire bus 27-bit format control
● 4-bit bandswitch drive transistor
● 5-level A / D converter (when I2C bus selected)
● Frequency step : 50 kHz, 62.5 kHz, 250 kHz, and 333.3 kHz (at 4 MHz Xtal used)
● Phase lock detector
● Various function settings via program data
● Four address settings via address selector (when I2C bus selected)
● Power on reset circuit
● Flat, compact package : SSOP16 (0.65 mm pitch)
● Power on reset operation condition
    Bandswitch register 1 to 4 : OFF
    Tuning amplifier : ON
    Tuning Voltage output (Vt) : High Level
    Charge-pump output current : ±200 µA
    Phase comparator reference frequency divider ratio : 1 / 80