Rainbow-electronics MAX7480 Manual do Utilizador descarregar pdf (Página 5)

MAX7480

8th-Order, Lowpass, Butterworth,

Switched-Capacitor Filter

_______________________________________________________________________________________ 5

Typical Operating Characteristics (continued)

= +5V, f

CLK

= 100kHz, SHDN = V

, V

COM

= V

/ 2, T

= +25°C, unless otherwise noted.)

0.97

0.99

0.98

1.01

1.02

1.03

-40 200-20 40 60 80 100

NORMALIZED OSCILLATOR FREQUENCY

vs. TEMPERATURE

MAX7480 toc10

TEMPERATURE (°C)

NORMALIZED OSCILLATOR FREQUENCY

OSC

= 530pF

-90

-70

-80

-50

-60

-40

-30

-10

-20

0 1.0 1.5 2.00.5 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)

Table A. THD+N vs. Input Signal

Amplitude Test Conditions

MEASUREMENT

BANDWIDTH (kHz)

100

200

CLK

(kHz)

1200B

2400A

(kHz)

(Hz)

TRACE

1 2 3 4 5 6 7 8

Switched-Capacitor Filter 1

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