DS26502LN+ Maxim Integrated Products, DS26502LN+ Datasheet - Page 14
![IC T1/E1/J1 64KCC ELEMENT 64LQFP](/photos/6/50/65017/64-lqfp_21-0083_sml.jpg)
DS26502LN+
Manufacturer Part Number
DS26502LN+
Description
IC T1/E1/J1 64KCC ELEMENT 64LQFP
Manufacturer
Maxim Integrated Products
Type
BITS Elementr
Datasheet
1.DS26502LN.pdf
(125 pages)
Specifications of DS26502LN+
Voltage - Supply
3.135 V ~ 3.465 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
64-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Frequency-max
-
Output
-
Input
-
- Current page: 14 of 125
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4. PIN FUNCTION DESCRIPTION
4.1 Transmit PLL
4.2 Transmit Side
PLL_OUT
TS_8K_4
TNEGO
TCLKO
TPOSO
NAME
NAME
TCLK
TSER
TYPE
TYPE
I/O
O
O
O
O
I
I
Transmit PLL Output. This pin can be selected to output the 1544kHz,
2048kHz, 64kHz, or 6312kHz output from the internal TX PLL or the internal
signal, TX CLOCK. See
Transmit Clock Input. A 64kHz, 1.544MHz, 2.048MHz, or 6312kHz
primary clock. May be selected by the TX PLL mux to either directly drive
the transmit section or be converted to one of the other rates prior to driving
the transmit section. See
Transmit Serial Data. Source of transmit data sampled on the falling edge of
TX CLOCK (an internal signal). See
timing diagram
TSYNC, 8kHz Sync, 400Hz Sync
T1/E1 Mode: In input mode, this pin is sampled on the falling edge of TX
CLOCK (an internal signal) and a pulse at this pin will establish either frame
or multiframe boundaries for the transmit side. See
timing diagram
In output mode, this pin is updated on the rising edge of TX CLOCK (an
internal signal) and can be programmed to output a frame or multiframe sync
pulse useful for aligning data. See
(Figure
64KCC Mode: In input mode, this pin is sampled on the falling edge of TX
CLOCK (an internal signal) and will establish the boundary for the 8kHz
portion of the Composite Clock or the 400Hz boundary based on the setting of
IOCR1.3. See
In output mode, this pin is updated on the rising edge of TX CLOCK (an
internal signal) and will indicate the 8kHz or 400Hz composite clock
alignment. See
Transmit Clock Output. In normal operation this output is the selected
transmit clock from the TX_PLL, TCLK pin or the recovered clock (RCLK).
When remote loopback is enabled this pin will output the recovered network
clock.
Transmit Positive-Data Output. In T1 or E1 mode, updated on the rising
edge of TCLKO with the bipolar data out of the transmit-side formatter. Can
be programmed to source NRZ data via the output-data format (IOCR1.0)
control bit. In 64KCC or 6312kHz mode this pin will be low.
Transmit Negative-Data Output. In T1 or E1 mode, updated on the rising
edge of TCLKO with the bipolar data out of the transmit-side formatter. In
64KCC or 6312kHz mode this pin will be low.
20-11).
Figure 3-1
Figure 3-1
(Figure
(Figure
14 of 125
20-11).
20-11).
Figure 3-3
Figure 3-3
and the transmit timing diagram
and the transmit timing diagram
FUNCTION
FUNCTION
Figure 3-1
and
and
Figure
Figure
Figure
3-1,
and the transmit timing diagram
3-4.
3-4.
Figure
Figure 3-1
3-3, and the transmit
(Figure
(Figure
and the transmit
20-11).
20-11).
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