Rainbow-electronics MAX7427 Manual de usuario descargar pdf (Pagina 6)

MAX7426/MAX7427

5th-Order, Lowpass, Elliptic,

Switched-Capacitor Filters

6 _______________________________________________________________________________________

Typical Operating Characteristics (continued)

= +5V for MAX7426, V

= +3V for MAX7427, f

CLK

= 100kHz, SHDN = V

, V

COM

= V

/ 2, T

= +25°C, unless other-

wise noted.)

-90

-70

-80

-50

-60

-40

-30

-10

-20

012345

MAX7426

TOTAL HARMONIC DISTORTION PLUS NOISE

vs. INPUT SIGNAL AMPLITUDE

MAX7426/27-10

AMPLITUDE (Vp-p)

THD + NOISE (dB)

SEE TABLE 1.

0 1.00.5 1.5 2.0 2.5 3.0

MAX7427

TOTAL HARMONIC DISTORTION PLUS NOISE

vs. INPUT SIGNAL AMPLITUDE

MAX7426/27-12

AMPLITUDE (Vp-p)

THD + NOISE (dB)

-90

-70

-80

-50

-60

-40

-30

-10

-20

SEE TABLE 1.

Table 1. THD + Noise Test Conditions

LABEL

(Hz)

(kHz)

A 200 1

B 1k 5

CLK

(kHz)

100

500

MEASUREMENT

BANDWIDTH (kHz)

1 2 3 4 5 6 7 8 9 10 11 12

MAX7426/MAX7427 1
5th-Order, Lowpass, Elliptic 1
Switched-Capacitor Filters 1
Switched-Capacitor 7

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Rainbow-electronics MAX7427 Manual de usuario Pagina 6

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