AM79Q4457J ETC1 [List of Unclassifed Manufacturers], AM79Q4457J Datasheet - Page 16

• Manufacturer Part Number: AM79Q4457J
• Description: Quad Subscriber Line Audio Processing Circuit-Non-Programmable (QSLAC-NP) Devices
• Manufacturer: ETC1 [List of Unclassifed Manufacturers]

Variation of Gain with Input Level
The gain deviation relative to the gain at –10 dBm0 is within the limits shown in Figure 3 for either transmission path
when the input is a sine wave signal of frequency 1014 Hz.
16
Gain
Gain
Figure 3a. A-law Gain Tracking with Tone Input (Both Paths)
dB
Figure 3b. -law Gain Tracking with Tone Input (Both Paths)
dB
–0.25
–0.45
–0.25
–0.55
0.45
0.25
–1.4
0.55
0.25
–1.5
1.4
1.5
0
0
–55 –50
–55 –50
Am79Q4457/5457 Data Sheet
–37
–40
QSLAC-NP Device
QSLAC-NP Device
Specification
Specification
–10
–10
0
0
+3
+3
dBm0
Level
dBm0
Level
Input
Input
19256A-008
19256A-009