peb20954 Infineon Technologies Corporation, peb20954 Datasheet - Page 120

• Manufacturer Part Number: peb20954
• Description: Smart Integrated Digital Echo Canceller Sidec
• Manufacturer: Infineon Technologies Corporation

Preliminary Data Sheet
6.5
The previous echo return loss is 6 dB at an analog hybrid. The NLP is disabled and the
measurement is made 500 ms after interrupting the end echo path.
6.6
This test is under study and the most values are not defined.
6.7
6.8
The SIDEC incorporate a 2010 Hz tone detector to allow a continuity check in System 6
and 7. In many applications a disabling control via the switch is possible. In this case this
function has to be switched off (reset value, Register CONFSS7 = 00H).
Operating level / Non operating level:
Operating frequency:
Operating time for disabling
Operating time for H-Register-Reset
None operating frequency:
Release time:
-10 dBm0
-20 dBm0
-25 dBm0
-10 dBm0
-20 dBm0
-30 dBm0
+3 dBm0
Receive
Receive
0 dBm0
0 dBm0
Level
Level
R
R
in
in
Infinite return loss convergence test
Non divergence on narrow band signals
Stability Test
Test No. 8 - Non convergence of the canceller on specific ITU-T
No. 5, 6 and 7 in band signaling and continuity check tones
< -27.5 dBm0
Requirement
< TBD dBm0
< TBD dBm0
< TBD dBm0
< TBD dBm0
Requirement
< -30 dBm0
< -38 dBm0
< -47 dBm0
< -55 dBm0
ITU G.168
ITU G.168
Residual output level L
Residual output level L
> -31dBm0 / < -34dBm0
12ms + guard time adjusted in BYNR7[3:0]
10ms
1968Hz...2032Hz
12ms + guard time adjusted in D!SNR7[3:0]
0...1945 and 2055Hz...4000Hz
120
- 61 dBm0
measured
measured
-28 dBm0
-31 dBm0
-41 dBm0
-51 dBm0
-76 dBm0
-76 dBm0
-67 dBm0
-67 dBm0
value
value
RES
RES
SIDEC Performance
PEB 20954
PEF 20954
04.99