Typical operating characteristics (continued) – Rainbow Electronics MAX7480 User Manual
Page 5
MAX7480
8th-Order, Lowpass, Butterworth,
Switched-Capacitor Filter
_______________________________________________________________________________________
5
Typical Operating Characteristics (continued)
(V
DD
= +5V, f
CLK
= 100kHz, SHDN = V
DD
, V
COM
= V
OS
= V
DD
/ 2, T
A
= +25°C, unless otherwise noted.)
0.97
1
0.99
0.98
1.01
1.02
1.03
-40
20
0
-20
40
60
80
100
NORMALIZED OSCILLATOR FREQUENCY
vs. TEMPERATURE
MAX7480 toc10
TEMPERATURE (°C)
NORMALIZED OSCILLATOR FREQUENCY
C
OSC
= 530pF
-90
-70
-80
-50
-60
-40
-30
-10
-20
0
0
1.0 1.5 2.0
0.5
2.5 3.0 3.5 4.0 4.5 5.0
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. INPUT SIGNAL AMPLITUDE
MAX7480 toc11
AMPLITUDE (Vp-p)
THD+N (dB)
NO LOAD
(SEE TABLE A)
A
B
Table A. THD+N vs. Input Signal
Amplitude Test Conditions
22
22
MEASUREMENT
BANDWIDTH (kHz)
100
200
f
CLK
(kHz)
1
200
B
2
400
A
f
C
(kHz)
f
IN
(Hz)
TRACE