AN10E40 Data Manual
27
A Programmable Low Pass Filter
With a CAB programmed as a low pass (fc = 20 kHz), low Q (Q = 0.707) with a Gain of 2, the following
performance can be expected.
Min.
Typ.
Max.
Notes
SNR, >500 kHz Bandwidth
SNR, 80 kHz Bandwidth
SNR, 468-3 Weighted
70 dB
1 kHz, Sine, 0.5 Vrms
1 kHz, Sine, 0.5 Vrms
1 kHz, Sine, 0.5 Vrms
1 kHz, Sine, 0.5 Vrms
80 kHz
75 dB
70 dB
SNR, A Weighted
78 dB
Total Harmonic Distortion (THD+N)
Gain Set to 0.01
0.05%
+0.46%
-0.12%
-0.54%
+0.84%
-1.25%
+0.30%
+0.01%
Gain Set Error
Gain Set to 1.00
Gain Set Error
Gain Set to 100.0
Gain Set Error
fc set to 50.0 Hz, CLK at 16.13 kHz
fc set to 100.0 Hz, CLK at 16.13 kHz
fc set to 1.0 kHz, CLK at 100.0 kHz
fc set to 10.0 kHz, CLK at 250.0 kHz
Error in -3 db Corner Frequency
Error in -3 db Corner Frequency
Error in -3 db Corner Frequency
Error in -3 db Corner Frequency
LATTICE [ LATTICE SEMICONDUCTOR ]
