am79q02 ETC-unknow, am79q02 Datasheet - Page 14

• Manufacturer Part Number: am79q02
• Description: Quad Subscriber Line Audio-processing Circuit Qslac Devices
• Manufacturer: ETC-unknow

Attenuation Distortion
Group Delay Distortion
For either transmission path, the group delay distortion is within the limits shown in Figure 2. The minimum value
of the group delay is taken as the reference. The signal level should be 0 dBm0.
14
Attenuation (dB)
Delay (µs)
– 0.125
0.125
1
0
2
x x x x x x
x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
420
150
x x
x x
x x
200
90
x x
x x
x x
x x x x
x x
x x
x x
x x x x
x x
x x
x x x x
x x x x
x x x x
x x
x x x x
x x x x
0
300
x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
x x
x x
x x x x
x x
x x
x x
x x x x
x x
x x
x x
Transmit only
500 600
x x x
x x x
x x x
x x x
x x x
x x x
Figure 2. Group Delay Distortion
Figure 1. Attenuation Distortion
Receive curve 1 dB
x x x x
x x
x x
x x x x
x x
x x
x x
x x x x
x x
x x
x x x x
x x
x x
x x x x
x x
x x
x x
x x x x
x x x x x x
x x x x x x
x x
Am79Q02/021/031 Data Sheet
Transmit curve 1.8 dB
QSLAC Device Specification
x x x
x x x
1000
x x
x x
x x
x x x x
x x x x x x x x x x x x x x x x x x x x x
x x
x x x x x x x x x x x x x x x x x x x x x
x x
x x
Frequency (Hz)
Frequency (Hz)
QSLAC Device Specification
(Either Path)
x x x x x x x x x
x x x x x x x x x
x x
x x x x
x x
x x
3000
x x x x x x
x x x x x x
x x
x x
x x x x
x x
2600
x x x
x x x
x x x
x x x
x x x
x x x
x x x
x x x
x x x
x x x
x x x
x x x
x x x
x x x
x x x
x x x
x x x
x x x x
x x
x x
x x x x
x x
x x
x x
x x x x
x x
x x
x x x x
x x
x x
x x x x
x x
x x
x x
x x x x
2800
3400
x x x x x x x x x x x x
x x
x x x x x x x x x x x x
x x
x x x x
0.75 dB
19256A-007
19256A-006