CX28332 Conexant Systems, CX28332 Datasheet - Page 26

• Manufacturer Part Number: CX28332
• Description: (CX28331 - CX28333) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit
• Manufacturer: Conexant Systems

1.0 Pin Description
1.1 Pin Assignments
Table 1-2. CX2833i-3x Pin Definitions (3 of 8)
1-16
CX28331-3x CX28332-3x CX28333-3x
61
—
60
—
—
—
—
—
62
—
—
—
67
—
—
—
Pin #
—
78
—
79
47
46
—
—
—
77
48
—
—
82
43
—
—
78
—
79
61
60
47
46
—
77
62
48
—
82
67
43
Signal Name
TNEG3/NC3
TPOS1/
TNEG1/
TPOS2/
TNEG2/
TPOS3/
TNRZ1
TNRZ2
TNRZ3
RLOS1
RLOS2
RLOS3
TCLK1
TCLK2
TCLK3
TPOS/
TNEG/
RLOS
TCLK
TNRZ
NC1
NC2
NC
Conexant
Ch1 transmit
Positive rail or
NRZ data
Ch1 transmit
Negative rail or
no connect data
Ch2 transmit
Positive or NRZ
data
Ch2 transmit
Negative data or
no connect data
Ch3 transmit
Positive or NRZ
data
Ch3 transmit
Negative data or
no connect data
Transmit clock
Ch1
Transmit clock
Ch2
Transmit clock
Ch3
Loss of signal
Ch1
Loss of signal
Ch2
Loss of signal
Ch3
Description
Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit
I/O/P
O
O
O
I
I
I
I
I
I
I
I
I
Synchronized transmit data intended to be
strobed in by the corresponding TCLK.
When ENDECDIS = 1, these inputs are
expected to be positive and negative AMI
data (TPOS and TNEG).
When ENDECDIS = 0, these inputs are
expected to be uncoded NRZ data (TNRZ)
and no connects (NC).
See notes on the ENDECDIS pin in the
Control Signal section.
Transmit bit clock input for strobing with
transmit data into the CX2833i.
Loss Of Signal (LOS) indication for each
channel, as determined by insufficient pulse
density. Signal loss detected when RLOS =
1. An LOS will be asserted when 175 ±75 0s
occur in a row and deasserted when the
pulse density is between 28% and 33%
(DS3/STS-1) (i.e., a 1s density).
CX28331/CX28332/CX28333
Notes
100985A