TDA8745 Overview
plastic shrink dual in-line package; 42 leads (600 mil) plastic quad flat package; 44 leads (lead length 1.3 mm);.
TDA8745 Key Features
- On-chip frequency synthesizer and mixer
- tuning range 4 to 9.77 MHz
- reference oscillator 4 MHz (using a crystal or 4 MHz frequency source)
- IF input switches allowing selection of various IF bandwidths (wide or narrow)
- Demodulation of two audio signals by wide band Phase-Locked Loops (PLLs)
- Audio level control after PLL (modulation depth setting)
- Noise Reduction (NR) bypass for use with main audio signals
- Left, right and mono output [1⁄2(l + r)] on SCART level
- External audio inputs (for decoder connection)
- Selectable de-emphasis (DEEM) 50 µs, 75 µs, J17 and flat response