Datasheet

 
      
    
SLAS251A − DECEMBER 1999 − REVISED JANUARY 2003
32
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
−140
−120
−100
−80
−60
−40
−20
0
20
0 102030405060708090100
Magnitude − dB
f − Frequency − kHz
FAST FOURIER TRANSFORM
vs
FREQUENCY
V
CC
= 5 V,
External Reference = 4 V,
SCLK = 20 MHz,
Internal OSC
Single Shot, Long Sample
Mode 00 µP Mode
Figure 32
−70
−65
−60
−55
−50
0 255075100
Figure 33
SNR − Signal-to-Noise − dB
f − Frequency − kHz
SIGNAL-TO-NOISE
vs
INPUT FREQUENCY
V
CC
= 5 V, External Reference = 4 V,
Internal OSC, Single Shot, Short Sample,
Mode 00 µP Mode