DS3170N+ Maxim Integrated Products, DS3170N+ Datasheet - Page 60
DS3170N+
Manufacturer Part Number
DS3170N+
Description
IC TXRX DS3/E3 100-CSBGA
Manufacturer
Maxim Integrated Products
Datasheet
1.DS3170.pdf
(230 pages)
Specifications of DS3170N+
Function
Single-Chip Transceiver
Interface
DS3, E3
Number Of Circuits
1
Voltage - Supply
3.135 V ~ 3.465 V
Current - Supply
120mA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
100-LBGA
Includes
DS3 Framers, E3 Framers, HDLC Controller, On-Chip BERTs
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power (watts)
-
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10.2.3.1 Transmit Line Interface Pins Timing Source Selection
(TPOS/TDAT, TNEG)
The transmit line interface signal pin group has the same functional timing clock source as the TLCLK pin
described in
pin is always a valid output clock for external logic to use for these signals when PORT.CR3.TLTS=0.
The transmit line timing select bit (TLTS) is used to select input or output clock pin timing. When TLTS=0, output
clock timing is selected. When TLTS=1, input clock timing is selected. If TLTS is set for input clock timing and an
output clock pin is used, or if TLTS is set for output clock timing and an input clock pin is used, then the setup, hold
and delay timings, as specified in
modes in which there is no input clock pin available for external timing since the clock source is derived internally
from the RX LIU or the CLAD.
Table 10-6. Transmit Line Interface Signal Pin Valid Timing Source Select
10.2.3.2 Transmit Framer Pin Timing Source Selection
(TSER, TSOFI, TSOFO/TDEN)
The transmit framer signal pin group has the same functional timing clock source as the TCLKO pin described in
Table
valid output clock for external logic to use for these signals when TFTS=0.
The transmit framer select bit (TFTS) is used to select input or output clock pin timing. When TFTS=0, output clock
timing is selected. When TFTS=1, input clock timing is selected. If TFTS is set for input clock timing and an output
clock pin is used, or If TFTS is set for output clock timing and an input clock pin is used, then the setup, hold and
delay timings, as specified in
modes in which there is no input clock pin available for external timing since the clock source is derived internally
from the RX LIU or the CLAD.
1
1
1
0
0
0
0
0
0
0
0
10-4. Other clock pins can be used for the external timing. The TCLKO transmit clock output pin is always a
not LLB (010) and not PLB (011)
not LLB (010) and not PLB (011)
not LLB (010), not PLB (011)
Table
and not LLB & DLB (110)
and not LLB & DLB (110)
and not LLB & DLB (110)
LLB (010) or PLB (011)
LLB (010) or PLB (011)
LLB (010) or PLB (011)
or DLB & LLB (110)
or DLB & LLB (110)
DLB & LLB (110)
not DLB (100),
10-3. Other clock pins can be used for the external timing. The TLCLK transmit line clock output
DLB (100)
LBM[2:0]
XXX
XXX
XXX
Table
Table
16-1, will not be valid. There are some combinations of TFTS=1 and other
16-1, will not be valid. There are some combinations of TLTS=1 and other
X
X
X
X
X
X
X
0
1
0
1
60 of 230
X
X
X
X
X
X
X
X
X
0
1
0
1
1
0
0
0
0
1
1
1
1
TLCLK, TCLKO, RCLKO
RLCLK
No valid timing to any input clock pin
TLCLK, TCLKO, RCLKO
TLCLK, RCLKO
TLCLK
TLCLK, TCLKO (default)
No valid timing to any input clock pin
TCLKI
RLCLK
No valid timing to any input clock pin
VALID TIMING TO THESE CLOCK PINS
DS3170 DS3/E3 Single-Chip Transceiver
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