cx28380 Mindspeed Technologies, cx28380 Datasheet - Page 30
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cx28380
Manufacturer Part Number
cx28380
Description
Cn8380 Quad T1/e1 Line Interface
Manufacturer
Mindspeed Technologies
Datasheet
1.CX28380.pdf
(86 pages)
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Part Number
Manufacturer
Quantity
Price
Part Number:
cx28380-16
Manufacturer:
MINDSPEED
Quantity:
20 000
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If TAIS is activated when Remote Line Loopback is active, AIS is transmitted using the received clock (or JCLK if
the JAT is enabled in the receive direction).
configuration settings and input conditions.
Table 2-2.
2.4.5
All transmit pulse shaping to meet E1 and T1 transmission standards is done internally, eliminating the need for
external shaping circuitry. The pulse shape block receives bipolar NRZ transmit data, produces a set of eight 5-bit
values which define the pulse shape, and converts the shape values into an analog pulse using a DAC.
lists the transmit pulse template selections and applications.
Table 2-3.
29380-DSH-001-B
DSX-1
T1.102
CB119
100 Ω Twisted Pair
GENERAL NOTE:
1. X = Don’t Care.
(W/LLOOP=0)
RLOOP
0
0
0
0
0
0
0
1
1
Application
Transmitter Operating Modes
Transmit Pulse Configurations (1 of 2)
Pulse Shaper
TLOC
X
X
X
0
0
1
0
1
1
Preliminary Information / Mindspeed Proprietary and Confidential
Configuration and Input Status
Line Rate
T1
T1
T1
T1
T1
Mindspeed Technologies
TAIS
X
0
1
0
1
0
0
0
1
Table 2-2
Line Length
133–266 ft.
266–399 ft.
399–533 ft.
533–655 ft.
0–133 ft.
AUTO_AIS
lists transmitter operating modes resulting from various
0
X
0
X
1
X
1
X
X
®
AISCLK
Hardware Mode
Configuration
X
0
X
1
X
0
1
X
X
PTS(2:0)
000
001
010
011
100
Tx Data
AIS
No Data
AIS
Tx Data
No Data
AIS
Rx Data
AIS
Transmit
Data
Transmitter Mode
Host Mode Configuration
Circuit Description
[TLIU_CR; addr n2]
PULSE(2:0)
TCLK
TCLK
TCLK
TACKI/EACKI
TCLK
TCLK
TACKI/EACKI
RCLK
RCLK
000
001
010
011
100
Transmit
Table 2-3
Clock
22
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