Motorola Astro XTL 1500 - Serial Audio Port Waveforms; Secure Interface Waveforms

June 15, 2005 6815854H01-A
6-10 Troubleshooting Waveforms: XTL 1500 Waveforms
6.2.17 Serial Audio Port Waveforms
6.2.18 Secure Interface Waveforms
MAEPF-27864-O
C1 Freq
~8kHz
Transmitting
1 kHz tone at 85mVrms into microphone
Trace 1 — Frame Sync — SAP_FSYNC
Trace 2 — Clock — SAP_DCLK
Trace 3 — Data — SAP_TX
Ch1 Ch2
Ch3
M
20.00us
Ch3 1.20V
J0501-1
SAP_TX
J0501-2
SAP_RX
J0501-4
SAP_FSYNC
J0501-3
SAP_DCLK
2.00V
2.00V
2.00V
2.00V
MAEPF-27865-O
Ch4
Receiving
1 kHz tone at 3 kHz Dev, -47dBm Secure Mode
Trace 1 — J0501 — 1 - SAP TX
Trace 2 — J0501 — 2 - SAP RX
Trace 3 — J0501 — 3 - SAP DCLK