AD6600
RSSI Gain Step
AD6600 TRANSFER FUNCTION
The input amplitude span between taps of the RSSI (received
signal strength) attenuator ladder. Ideally each stage should
span 6 dB of input power.
RSSI Hysteresis
60
54
48
42
SNR – dB
The amount of movement in the RSSI switch points, depending
on the direction of approach. Hysteresis prevents unnecessary
RSSI toggling when input signal power is near a threshold.
Signal-to-Noise Ratio (Without Harmonics)
36
30
24
18
12
6
0
–100 –90
–80
–70
–60 –50 –40 –30
AIN LEVEL – dBFS
–20
–10
0
The ratio of the rms signal amplitude (set at 1 dB below full
scale) to the rms value of the sum of all other spectral compo-
nents, excluding the first five harmonics and dc.
Worst Other Spur
The ratio of the rms signal amplitude to the rms value of the
worst spurious component (excluding the second and third
harmonic) reported in dBc.
Figure 1. SNR vs. Input Power
REV. 0
–11–
AD [ ANALOG DEVICES ]
