Table of Contents
Advertisement
3.10 SLEDGEHAMMER TX Test
Do the following:
1. Set the unit to the Open Loop
Power Test at 813.5125 MHz.
2. Measure the RF level at
the PA input
Is
the power level
> - 26 dBm?
Pass
Do the following:
1. Set the unit to the
TX Power Tune Test.
2. Set the Power Tune
softpot to Max power
3. Measure the RF level
at the antenna port.
Is
the power level
> 27 dBm?
Pass
Do the following:
1. Monitor the RF waveform
at the antenna port.
2. Check for the correct phase
and amplitude train waveform.
3. Check that the modulation
peaks are lower than the
Amplitude training ramp peak.
Are the
training waveform
and modulation
OK?
Pass
The SLEDGEHAMMER IC
is functioning properly.
6880401P26-O
Fail
Fail
Perform the PA
Module Test.
Fail
Open Loop Power Test.
TROUBLESHOOTING: SLEDGEHAMMER TX Test
Do the following:
Measure the DC voltage
at L503.It should be equal
to the supply voltage.
Is the DC voltage
Fail
equal to the supply
voltage?
Pass
Re-measure the RF level
at the PA input.
Is
the power level
> - 26 dBm?
Pass
Run the
TX Power Test again.
Set the unit to the
Fail
Continued
on next
page
83
Advertisement
Table of Contents
