TC9256F

The TC9256F is designed as one kind of phase-locked loop (PLL) LSIs for digital tuning systems (DTS) with built-in 2 modulus prescalers. All functions of TC9256F are controlled through 3 serial bus lines. These LSIs are used to configure high performance digital tuning systems.

TC9256F has many features. (1)Optimal for configuring digital tuning systems in high fituners and car stereos. (2)Built-in prescalers. Operate at input frequency ranging from 30 to 150MHz during FMin input (with 2 modulus prescaler) and at 0.5 to 40MHz during AMin input (with 2 modulus prescaler or direct dividing). (3)16bit programmable counter, dual parallel output phase comparator, crystal oscillator and reference counter. (4)3.6MHz, 4.5MHz, 7.2MHz or 10.8MHz crystal oscillators can be used. (5)15 possible reference frequencies. (6)Built-in 20bit general purpose counter for such uses as measuring intermediate frequencies and low frequency pilot signal sysles. (7)High precision PLL phase error detection. (8)Numerous general purpose I/O pins for such uses as peripheral circuit control. (9)4 N-channel open-drain output ports for such uses as control signal output. And so on.

Some absolute maximum ratings of TC9256F have been concluded into several points as follow. (1)Its supply voltage would be from -0.3V to 6.0V. (2)Its input voltage would be from -0.3V to Vdd+0.3V. (3)Its N-ch open-drain OFF withstanding voltage would be 13V. (4)Its power dissipation would be 300mW. (5)Its operating temperature range would be from -40°C to 85°C. (6)Its storage temperature range would be from -65°C to 150°C. It should be noted that stresses above those listed in absolute maximum ratings may cause permanent damage to device.

Also some electrical characteristics of TC9256F are concluded as follow. (1)Its operating power supply voltage would be min 4.5V and typ 5.0V and max 5.5V. (2)Its operating power supply current would be typ 7mA and max 15mA. And so on. If you have any question or suggestion or want to know more information of TC9256F, please contact us for details. Thank you!