XRT94L31IB Exar Corporation, XRT94L31IB Datasheet - Page 117

• Manufacturer Part Number: XRT94L31IB
• Description: IC MAPPER DS3/E3/STS-1 504TBGA
• Manufacturer: Exar Corporation

Specifications of XRT94L31IB

• Applications: Network Switches
• Interface: Bus
• Voltage - Supply: 3.14 V ~ 3.47 V
• Package / Case: 504-LBGA
• Mounting Type: Surface Mount
• Product: Mapper
• Lead Free Status / RoHS Status: Contains lead / RoHS Compliant

REV. 1.0.1
N
In the Transmit STS-1/STM-0 Telecom Bus Interface (associated with Channel 0) all of the signals (which are
input via this Bus Interface) are sampled upon the rising edge of TxA_CLK (19.44MHz clock signal).
Figure 21
will be received by the Transmit STS-1/STM-0 Telecom Bus Interface.
F
STM-0 T
1.4.5
S
OTE
IGURE
YMBOL
t13
t14
: The value for t13 and t14 can be found in
20. A
ELECOM
T
TxA_D[7:0], TxA_PL, TxA_C1J1, TxA_ALARM and TxA_DP to rising edge
of TxA_CLK set-up time requirements
Rising edge of TxA_CLK to TxA_D[7:0], TxA_PL, TxA_C1J1, TxA_ALARM
and TxA_DP hold time requirements
The Transmit STS-1/STM-0 Telecom Bus Interface Timing (for Channel 0 when configured to
operate in the STS-3/STM-1 Mode)
presents an illustration of the waveforms and the timing parameters (t13 and t14) of the signals that
ABLE
TxA_CLK
TxA_C1J1
TxA_D[7:0]
TxA_PL
N
I
LLUSTRATION OF THE
21: T
B
US
I
IMING
NTERFACE
I
t13
NFORMATION FOR THE
A2
t14
W
C1
D
AVEFORMS OF THE
ESCRIPTION
Table 21
C1
3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC
T
RANSMIT
117
.
S
IGNALS THAT ARE
STS-1/STM-0 T
J1
Data
ELECOM
I
NPUT VIA THE
M
0 ns
4ns
IN
Data
B
.
US
I
NTERFACE
T
RANSMIT
T
YP
XRT94L31
.
STS-1/
M
AX
.