cx28380 Mindspeed Technologies, cx28380 Datasheet - Page 65

• Manufacturer Part Number: cx28380
• Description: Cn8380 Quad T1/e1 Line Interface
• Manufacturer: Mindspeed Technologies

Table 4-7.
4.5
This section provides details about the following timing features:
•
•
•
•
•
•
•
•
•
Table 4-8.
29380-DSH-001-B
Transmitter XTIP[n], XRING[n] outputs:
Transmitter signal power level (3 kHz band):
Transmitter output intrinsic jitter (10 Hz–100 KHz)
GENERAL NOTE:
1. These values are measured on the line side of the transformer with an appropriate value load resistor in place of a cable.
GENERAL NOTE:
1. See
Output impedance (XOE = 1, high impedance)
Output impedance (XOE = 0, unterminated)
Short circuit current into 1
T1 pulse amplitude, 100
E1 peak voltage of a mark (pulse), 75
E1, 75
E1 peak voltage of a mark (pulse), 120
E1, 120
Positive/negative pulse imbalance
Return loss, option B or D
Power @ 772 kHz
Power @ 1544 kHz (relative to power @ 772 kHz)
XOE
JATERR
RLOS
RESET
CLAD
Receiver signals
Transmitter signals
Host serial port
JTAG interface
Symbol
1
2
Figure
Ω
Ω
coax peak voltage of a space (no pulse)
UTP peak voltage of a space (no pulse)
4-1.
Performance Characteristics (2 of 2)
XOE Timing Parameters
XOE[n] high to XTIP[n]/XRING[n] three-state
XOE[n] low to XTIP[n]/XRING[n] active
AC Characteristics
Ω
Parameter
Ω
UTP(1)
Preliminary Information / Mindspeed Proprietary and Confidential
load, max instantaneous
Ω
Ω
coax(1)
Mindspeed Technologies
UTP(1)
Parameter
Minimum
–0.237
2.14
–0.3
–25
2.7
2.7
10
—
—
–5
—
12
—
®
Electrical/Mechanical Specifications
Minimum
Typical
2.37
—
—
100
–18
–36
3.0
3.0
—
—
15
—
1
0
0
Maximum
Maximum
+0.237
0.018
+0.3
+19
3.3
2.6
3.3
—
—
50
+5
—
—
50
70
Units
Units
dBm
k
k
mA
dB
dB
ns
ns
%
UI
Ω
Ω
V
V
V
V
V
57