GENERAL DESCRIPTION
The TDA8780M is a true logarithmic amplifier intended for dynamic range reduction of IF signals at 10.7 MHz in digital radio receivers. It offers true logarithmic characteristics over a 72 dB input dynamic range, has a small-signal gain-adjustment facility and a constant limiting output voltage for large input levels.

FEATURES
• 72 dB true logarithmic dynamic range
• Small-signal gain-adjustment facility
• Constant limiting output voltage
• Temperature and DC power supply voltage independent
• Easy interfacing to analog-to-digital converters
• Output DC level shift facility.

APPLICATIONS
• Dynamic range compression
• IF signal dynamic range reduction in digital receivers
• Compression receivers.