CN8380 Datasheet, PDF (74/91 Pages) Conexant Systems, Inc – integrated quad line interface unit unit for both 1.544 Mbps (T1) and 2.048 Mbps (E1) applications

4.0 Electrical/Mechanical Specifications
4.4 Performance Characteristics
CN8380
Quad T1/E1 Line Interface
4.4 Performance Characteristics
Table 4-4. Performance Characteristics
Parameter
Minimum
Typical
Maximum
Units
Receiver
T1 receiver sensitivity (attenuation @ 772 kHz)
E1 receiver sensitivity (attenuation @ 1024 kHz)
RTIP[n]. RRING[n] inputs:
Input impedance (unterminated)
Peak-to-peak voltage (differential)
Return loss
Receive clock recovery (PLL)
Consecutive zeros tolerance before loss of lock
T1 frequency lock range
E1 frequency lock range
Receive noise immunity (SNR)
Near-end crosstalk (2¹⁵ PRBS)
60 Hz longitudinal
Gaussian white noise
RCKO intrinsic jitter with JAT disabled
RCKO intrinsic jitter with JAT enabled
+3
+3
23
–0.1
–0.4
—
—
—
—
—
Transmitter
—
–12
dB
—
–12
dB
10
12
kΩ
6
10
V
TBD
dB
75
100
bits
—
+0.3
kHz
—
+0.4
kHz
15
18
dB
18
20
dB
TBD
TBD
dB
—
0.125
UI P-P
—
0.05
UI P-P
Transmitter XTIP[n], XRING[n] outputs:
Output impedance (XOE = 1, high impedance)
Output impedance (XOE = 0, unterminated)
Short circuit current into 1 Ω load
T1 pulse amplitude, 100 Ω UTP⁽¹⁾
E1 pulse amplitude, 75 Ω coax⁽¹⁾
E1 pulse amplitude, 120 Ω UTP⁽¹⁾
Positive/negative pulse imbalance
Return loss
10
100
—
kΩ
—
1
—
kΩ
—
2
50
mA
2.7
3.0
3.3
V
2.14
2.37
2.6
V
2.7
3.0
3.3
V
–10
—
+10
%
—
TBD
—
dB
Transmitter signal power level (3 kHz band):
Power @ 772 kHz
Power @ 1544 kHz (relative to power @ 772 kHz)
12
15
+19
dBm
–25
–36
—
dB
Transmitter output intrinsic jitter with JAT disabled
—
—
0.125
UI
Transmitter output intrinsic jitter with JAT enabled
—
—
0.05
UI
NOTE(S):
(1) These values are measured on the line side of the transformer with an appropriate value load resister in place of a cable.
4-4
Conexant
N8380DSA
Advance Information