SL2150LH2S ZARLINK [Zarlink Semiconductor Inc], SL2150LH2S Datasheet - Page 14

• Manufacturer Part Number: SL2150LH2S
• Description: Front End Power Splitter with AGC
• Manufacturer: ZARLINK [Zarlink Semiconductor Inc]

4.5
All AGCs are connected through the 5-pin header, PL2, located in the bottom right hand corner. See note on
connection of supplies in the power supply section.
Pin allocation is as follows:
AGC control voltage is Vee to 3V for minimum to maximum gain setting.
4.6
4.6.1
CSO is tested using an RDL matrix generator set to deliver all channels from 55.25 MHz to 859.25 MHz at 15 dBmV
per carrier.
Each output is tested independently over maximum gain setting through 15 dB of gain reduction.
The output intermodulation is monitored on a spectrum analyzer with video bandwidth of 1 kHz and resolution
bandwidth of 10 kHz. To avoid intermodulation in the test set up the output channel is filtered through a narrow band
filter and then amplified to compensate for insertion loss. The higher of all CSO beats is recorded.
Under gain reduction the amplitude is normalized to channel 2 output at the required AGC onset
4.6.2
CTB is tested using an RDL matrix generator set to deliver all channels from 55.25 MHz to 859.25 MHz at 15 dBmV
per carrier.
Each output is tested independently over maximum gain setting through 15 dB of gain reduction.
The output intermodulation is monitored on a spectrum analyzer with video bandwidth of 1 kHz and resolution
bandwidth of 10 kHz. To minimize intermodulation in the test set up the output channel is filtered through a narrow
band filter and then amplified to compensate for insertion loss.
CTB is measured with N+-1 also disabled since these channels were found to produce intermodulation in the filter
and the post amplifier.
Under gain reduction the amplitude is normalized to channel 2 output at the required AGC onset.
4.6.3
CTB is tested using an RDL matrix generator set to deliver all channels from 55.25 MHz to 859.25 MHz at 15 dBmV
per carrier with 100% modulation at line rate.
Each output is tested independently over maximum gain setting through 15 dB of gain reduction.
14
AGC Control
Test Procedure
CSO
CTB
CXM
Pin
1
2
3
4
5
Function
Vagc 2
Vagc 3
Vagc 4
Vagc1
Vee
Data Sheet
SEMICMF.019