Register 0X17 Config_Auto_Gain - SIGNALCORE SC5312A User Manual

20 SC5312A & SC5313A Hardware Manual
Bits Type
[7] W
[8] W
[9] W
[23:10] W
[7:0] R

Register 0x17 CONFIG_AUTO_GAIN

This register will configure the device to set the attenuator values and control the RF amplifier to keep
the device gain close to the desired gain with changes in RF frequency, as computed from its input
parameters such as RF input level, mixer level, and IF out level.
Bytes written 6
Bytes read 1
Bits Type
[0] W
[1] W
[2] W
Rev 2.1 | SC5312A & SC5313A
Name Width
If3Filter2 1
invertSpectrum 1
rfAmp 1
Not used 14
Read back byte 8
Name Width
autoGainEnable 1
loadParams 1
autoCntrlRfAmp 1
User Manual
Description
Second filter bank of IF3:
0 = 1500 MHz LPF, this should always be selected
when IF3 conversion is enabled
1 = A narrow 1.25 GHz bandpass filter
0 = Not spectral inversion
1 = IF3 spectrum inverted w.r.t RF
0 = Disables RF amp
1 = Enables RF amp
Set to zeros
Read 1 byte back is required for PXIe and RS232
Description
0 = Attenuator and RF amplifier states are not
manipulated when RF values are changed
1 = Computes and applies new sets of attenuator
and amplifier states to the device as frequency is
changed
0 = Not to load new input parameter such as RF
level, etc. Will not load any information from bits
[47:2]
1 = Will load bits [31:2]
0 = Computation will leave the state of the RF
amplifier unchanged
1 = Computation will change the state of the RF
amplifier to provide the best device
configuration to meet the input parameter
requirements
SignalCore, Inc.