PEF2091 Siemens Semiconductor Group, PEF2091 Datasheet - Page 266

• Manufacturer Part Number: PEF2091
• Description: ICs for Communications(ISDN Echocancellation Circuit)
• Manufacturer: Siemens Semiconductor Group

Semiconductor Group
8.5
Receive Path
Signal / N+D
(noise + total harmonic distortion)
DC-level at AD-output
Threshold of level detect
Input impedance AIN/BIN
Transmit Path
Signal / N+D
(noise + total harmonic distortion)
Output DC-level
Offset between AOUT and BOUT
Signal amplitude
Output impedance AOUT/BOUT:
Power-up
Power-down
1) Test conditions: 1.3 Vpp antisemetric sine wave as input on AIN/BIN with long range (low, critical range)
2) The percentage of the "1"-values in the PDM-signal
3) Interpretation and test conditions: The sum of noise and total harmonic distortion,
4) The signal amplitude measured over a period of 1 min. varies less than 1%
weighted with a low pass filter 0 to 80 kHz, is at least 65 dB below the signal for an
evenly distributed but otherwise random sequence of + 3, + 1, – 1, – 3
Analog Characteristics
4)
1)
3)
2.05
min.
60
45
4
50
65
3.10
266
Limit Values
typ.
65
50
20
70
2.375
3.20
2
6
Electrical Characteristics
max.
55
28
2.6
3.30
4
12
35.5
Data Sheet 01.99
PEB 2091
PEF 2091
Unit
dB
%
mV
k
dB
dB
V
mV
2)