Motorola ASTRO Digital Spectra - Serial Audio Port Waveform; RX Audio Waveform

6881076C25-E September 5, 2008
Troubleshooting Waveforms: ASTRO Digital Spectra Plus VOCON Board Waveforms 6-11
Serial Audio Port Waveform
RX Audio Waveform
Transmitting
1 kHz tone at 85mVrms into microphone
Trace 1 — U402 — 7 - Frame Sync
Trace 2 — U402 — 11 - Clock
Trace 3 — U402 — 13 - Data
Receiving
1 kHz tone at 3 kHz Dev, -47dBm
Trace 1 — U402 — 2