TSA5523M - 1.4 GHz I2C-bus controlled multimedia synthesizer
The device is a single chip PLL frequency synthesizer designed for TV and VCR tuning systems.
The circuit consists of a divide-by-eight prescaler with its own preamplifier, a 15-bit programmable divider, a crystal oscillator and its programmable reference divider, a phase/frequency detector combined
TSA5523M Features
* Complete 1.4 GHz single-chip system
* Adaptive DC/DC converter driver output
* On-board tuning amplifier output
* Varicap drive disable
* Four NPN open-collector output ports (10 mA)
* Four bus-controlled bidirectional ports (NPN open-collector outpu
