Datasheet Summary
Burr-Brown Audio
.ti. ......................................................................................................................................................... SBOS396B
- MARCH 2009
- REVISED JUNE 2009
™ Digitally-Controlled MICROPHONE PREAMPLIFIER
Features
- 234 FULLY DIFFERENTIAL lNPUT-TO-OUTPUT ARCHITECTURE
- DIGITALLY-CONTROLLED GAIN USING SPI™:
- Gain Range: 9dB through 60dB, 3dB per Step
- Unity (0dB) Gain Setting via Serial Port
- DYNAMIC PERFORMANCE:
- Equivalent Input Noise with ZS = 150Ω and Gain = 30dB:
- 123dBu
- Total Harmonic Distortion plus Noise (THD+N) with Gain = 30dB: 0.0006%
- ZERO CROSSING DETECTION MINIMIZES AUDIBLE ARTIFACTS...