Typical operating characteristics (continued) – Rainbow Electronics MAX7480 User Manual

Page 5

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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

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