TC9257AFG Description
TC9256, 57APG/AFG TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC9256APG, TC9256AFG, TC9257APG, TC9257AFG PLL for DTS The TC9256APG, TC9256AFG, TC9257APG and TC9257AFG are phase-locked loop (PLL) LSIs for digital tuning systems (DTS) with built-in two-modulus prescalers. All functions are controlled through three serial bus lines. These LSIs are used to configure high-performance digital tuning systems.
TC9257AFG Key Features
- Suitable for use in digital tuning systems in high-fi tuners and car stereos
- Built-in prescalers operate at an input frequency ranging from 30 to 150 MHz during FMIN input (with two-modulus prescal
- 16-bit programmable counter, dual parallel output phase parator, crystal oscillator and reference counter
- 3.6 MHz, 4.5 MHz, 7.2 MHz or 10.8 MHz crystal oscillators can be used
- Built-in 20-bit general-purpose counter for such uses as measuring intermediate frequencies (IFIN1 and IFIN2) and low-fr
- High-precision (±0.55 to ±7.15 µs) PLL phase error detection
- Numerous general-purpose I/O pins for such uses as
- Four N-channel open-drain output ports (OFF withstanding
- Standby mode function (turns off FM, AM and IF amps) to save current consumption
- All functions controlled through three serial bus lines