DESCRIPTION
The LD511 is a Class A compression amplifier which can operate over a range of DC battery voltages from 1.1 V to 2.4 V. A voltage regulator, which is independent of supply voltage variations, is on-chip to supply a stable 0.94 VDC bias to the amplifier circuitry and to the microphone.

FEATURES
• 64 dB typical electrical gain
• 0.94 VDC voltage regulator
• 7 ms attack time, 40 ms release time
• 15 dB threshold adjustment
• low noise and distortion
• compression ratio ∞ : 1
• 0.3 kHz - 6 kHz frequency response