22

Am79D2251

Gain Linearity

The gain deviation relative to the gain at –10 dBm0 is within the limits shown in Figure 8 (A-law) and

Figure 9 (µ-law) for either transmission path when the input is a sine wave signal of 1014 Hz.

Figure 8. A-law Gain Linearity with Tone Input (Both Paths)

Figure 9.

µ-law Gain Linearity with Tone Input (Both Paths)

0.55

0.25

0

-0.25

-0.55

-1.5

-55 -50

-40

-10

+3

1.5

Gain (dB)

Input

Level

(dBm0)

0

Dual ISLAC Specification

0.45

0.25

0

-0.25

-0.45

-1.4

-55

-50

-37

-10

+3

1.4

Gain (dB)

Input

Level

(dBm0)

0

Dual ISLAC Specification