Specifications

AirPrime Embedded Module Hardware Integration Guide

84 Proprietary and Confidential 2130114

2. Set up the DUT using the following commands:

AT!UNLOCK=”<customerCode>” (Unlock extended AT command set.)

AT!DAFTMACT (Put modem into factory test mode.)

AT!DAAGCTON (Query power difference between carrier signal and

receiver.)

3. Test limits—Run ten or more good DUTs through this test procedure to

obtain averaged C/N readings.

· The GPS receiver responds to signal levels from -130 dBm to -80 dBm.

· Measure C/N five times for each DUT to obtain an average reading at

-110 dB.

· Make sure the C/N is less than 15 dB when the signal generator is off.

· Allow for

5 dB of C/N variation to identify any problems in the GPS

receive path.

Test Audio Loop-back—MC5727V/MC5728V/

MC8775V/MC8790V/MC8791V/MC8792V/

MC8795V

Note: This procedure segment is performed in Step 16 of the Suggested production test

plan procedure on page 72.

The microphone and speaker audio paths for voice-enable modules can be tested

by using an audio quantity that is suited to identify known assembly issues, and

applying limits to detect any problems.

To test the audio paths:

Note: This procedure

describes steps using the

Keithley Audio Analyzing

DMM, 2016-P.

1. Set up the audio analyzer to generate a constant tone:

a. Connect a BNC cable to the “Source Output” port at the rear panel.

b. Press the

Source button on the front panel, and then set the generator to:

· Ampl = 0.20 V

· Impedance = 50



· Freq = 1.000 kHz