BT8375 CONEXANT [Conexant Systems, Inc], BT8375 Datasheet - Page 277
BT8375
Manufacturer Part Number
BT8375
Description
single chip transceivers for T1/E1 and Integrated Service Digital Network (ISDN) primary rate interfaces
Manufacturer
CONEXANT [Conexant Systems, Inc]
Datasheet
1.BT8375.pdf
(323 pages)
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Bt8370/8375/8376
Fully Integrated T1/E1 Framer and Line Interface
Table 5-4. Line Interface Unit (RLIU, TLIU) Performance Characteristics
N8370DSE
T1 Receiver Sensitivity (Attenuation @ 772 kHz)
E1 Receiver Sensitivity (Attenuation @ 1024 kHz)
T1/E1 Short-Haul Receiver Sensitivity
Transmitter XTIP, XRING Outputs:
Receiver RTIP, RRING Inputs:
Receiver Phase-Lock Loop (RPLL)
Transmitter Phase-Lock Loop (TPLL):
Longitudinal Balance, Impedance to GND:
Receiver Noise Immunity (SNR):
Transmitter Signal Power Level (3 kHz band):
NOTE(S):
(1) Bt8370/8375/8376 receiver sensitivity includes 3 dB margin for 6000 feet (22 AWG) or 3.0 km (0.6 mm) cable.
(2) Bt8375 and Bt8376 receiver sensitivity is limited to –20 dB in both T1 and E1 modes.
Output Impedance (XOE = 0, high impedance)
Output Impedance (XOE = 1, unterminated)
T1 Pulse Amplitude, 100
E1 Pulse Amplitude, 75
E1 Pulse Amplitude, 120
Space/Mark Peak Voltage Ratio
Input Impedance (unterminated)
Peak-to-Peak Voltage (measured deferentially)
Tolerable consecutive 0s before frequency lost
T1 Frequency Lock Range
E1 Frequency Lock Range
T1 Frequency Lock Range
E1 Frequency Lock Range
T1 (50 kHz < f < 1544 kHz)
E1 (50 kHz < f < 2048 kHz)
Near-End Crosstalk (2
60 Hz Longitudinal
Power @ 772 kHz
Power @ 1544 kHz (versus Power @ 772 kHz)
Parameter
15
PRBS)
Coax
UTP
UTP
(2)
(1)
(1)
Conexant
Minimum
2.14
–0.3
–0.4
–0.7
–1.0
–10
–25
2.4
2.7
+3
+3
+3
10
—
—
—
23
35
35
—
—
12
5.0 Electrical/Mechanical Specifications
Typical
1544
2048
1544
2048
2.37
100
–36
3.0
3.0
—
—
—
—
10
75
42
40
15
18
15
1
6
Maximum
5.3 Electrical Characteristics
+0.3
+0.4
+0.7
+1.0
–36
–43
–20
+10
100
+19
3.6
2.6
3.3
7.2
—
12
—
—
18
20
—
2
Units
dBm
bits
kHz
kHz
kHz
kHz
k
k
k
dB
dB
dB
dB
dB
dB
dB
dB
%
V
V
V
V
5-3
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