DS3170N+ Maxim Integrated Products, DS3170N+ Datasheet - Page 31
![IC TXRX DS3/E3 100-CSBGA](/photos/6/94/69414/100-csbga_21-0153b_sml.jpg)
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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TSOFI
TSER
TCLKO /
TGCLK
PIN NAME
TYPE
O
I
I
Transmit Start Of Frame Input
See
TSOFI: This signal can be used to align the start of the DS3 or E3 frames on the
TSER pin to an external signal. In framed modes, the TSOFI signal can be used to
align the start of frame signal position on the TSER/TOH pin to the rising edge of a
signal on this pin. The signal edge does not need to occur on every frame and can be
tied high or low. The signal is sampled on the positive clock edge of the referenced
clock pin if the clock pin signal is not inverted, otherwise it is sampled on the falling
edge of the clock. The signal is typically referenced to the TCLKI transmit clock input
pins, but it can be referenced to the TLCLK, TCLKO, RCLKO and RLCLK clock pins.
This signal can be inverted.
Transmit Serial Data
TSER: When the port framer is configured for either the DS3 or E3 framed modes,
this pin is used as the source of the DS3/E3 payload data. When the port is
configured for a clear channel mode, this pin is used as the source of the DS3/E3
data signal. The signal is sampled on the positive clock edge of the referenced clock
pin if the clock pin signal is not inverted, otherwise it is sampled on the falling edge of
the clock. The signal is typically referenced to the TCLKI transmit clock input pins, but
it can be referenced to the TLCLK, TCLKO / TGCLK, RCLKO and RLCLK clock pins
This signal can be inverted.
o
o
Transmit Clock Output / Gapped Clock
See
TCLKO: When TCLKO is selected by PORT.CR3.TCLKS, this clock output is
enabled. This clock is the same clock as the internal framer transmit clock. This clock
is typically used for the reference clock for the TSOFI, TSER, and TSOFO / TDEN
signals but can also be used as the reference for the TPOS / TDAT and TNEG
signals.
This signal can be inverted.
o
o
TGCLK: When TGCLK is selected by PORT.CR3.TCLKS, this gated output clock is
enabled. This gapped clock is the same clock as the internal framer transmit clock
and is gated by TDEN. This clock is typically used for the reference clock for the
TSER signal.
This signal can be inverted.
DS3: 44.736 Mbps +20ppm
E3: 34.368 Mbps +20ppm
DS3: 44.736 MHz +20 ppm
E3: 34.368 MHz +20 ppm
Table 10-20.
Table 10-22.
31 of 230
PIN DESCRIPTION
DS3170 DS3/E3 Single-Chip Transceiver
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