Datasheet

15 www.national.com
Crosstalk
Symbol Parameter Conditions Min Typ Max Units
CT
R-X
Receive to transmit
crosstalk (Intra-channel
Crosstalk)
PCM code for stimulated channel
equals to 0dBm0, 300Hz-
3.4KHz, PCM code for all other
channels equals to positive zero,
FSX=FSR,
Measure PCM response.
-80 -75 dB
CTFE
X
Far end crosstalk with
analog stimulus (Inter-
channel crosstalk)
PCM code for all channels equals
to positive zero, FSX=FSR,
Stimulating signal GXO=0dBm0,
f=750Hz
All other channels GXO=0V
rms
-80 -73 dB
CTNE
X
Near end crosstalk with
digital stimulus (Inter-
channel crosstalk)
PCM code for stimulated channel
equals to 0dBm0, f=750Hz, PCM
code for all other channels equals
to positive zero, FSX=FSR,
All other channels GXO=0V
rms
-80 -73 dB
CT
X-R
Transmit to receive
crosstalk (Intra-channel
crosstalk)
PCM code for all channels equals
to positive zero, FSX=FSR,
Stimulating signal GXO=0dBm0,
300Hz-3.4KHz, all other channels
GXO=0V
rms
,
-80 -75 dB
CTFE
R
Far end crosstalk with
digital stimulus (Inter-
channel crosstalk)
PCM code for stimulated channel
equals to 0dBm0, f=750Hz, PCM
code for all other channels equals
to positive zero, FSX=FSR,
All other channels GXO=0V
rms
-80 -76 dB
CTNE
X
Near end crosstalk with
analog stimulus (Inter-
channel crosstalk)
PCM code for all channels equals
to positive zero, FSX=FSR,
Stimulating signal GXO=0dBm0,
f=750Hz
All other channels GXO=0V
rms
-80 -76 dB
Electrical Characteristics (continued)