Chapter 6 Troubleshooting Waveforms
6.1 Introduction
This chapter contains images of waveforms that might be useful in verifying operation of certain parts
of the circuitry. These waveforms are for reference only; the actual data depicted will vary depending
upon the operating conditions.
Table 6-1. List of Troubleshooting Waveforms
Waveform Page
ASTRO Digital Spectra Waveforms
Waveform W1: Power-On Reset Timing 6-2
Waveform W2: DSP SSI Port RX Mode 6-2
Waveform W3: DSP SSI Port TX Mode CSQ 6-3
Waveform W4: ABACUS Programming at Mode Change 6-3
Waveform W5: ABACUS/ADSIC Interface 6-4
Waveform W6: SPI Bus Programming ADSIC 6-4
Waveform W7: Receive Audio 6-5
Waveform W8: Transmit Audio 6-5
Waveform W9: Power-Down Reset 6-6
Waveform W10: ADSIC 2.4 MHz Reference 6-6
ASTRO Digital Spectra Plus VOCON Waveforms
32 kHz Clock Waveform 6-7
16.8 MHz Clock Waveform 6-8
TX Modulation Out Waveform 6-8
Differential ADDAG Output Waveform 6-9
TX SSI Waveform 6-9
SPI Bus Waveform 6-10
TX 1 kHz Tone Waveform 6-10
Serial Audio Port Waveform 6-11
RX Audio Waveform 6-11
RX BBP Waveform 6-12
Secure Interface Waveform 6-12
8 kHz Frame Sync for Security Circuitry Waveform 6-13