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DS3253N Datasheet

  • DS3253N

  • Single/Dual/Triple/Quad DS3/E3/STS-1 LIUs

  • 71頁(yè)

  • DALLAS   DALLAS

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DS3251/DS3252/DS3253/DS3254
Single/Dual/Triple/Quad
DS3/E3/STS-1 LIUs
www.maxim-ic.com
GENERAL DESCRIPTION
The DS3251 (single), DS3252 (dual), DS3253
(triple), and DS3254 (quad) line interface units (LIUs)
perform the functions necessary for interfacing at the
physical layer to DS3, E3, or STS-1 lines. Each LIU
has independent receive and transmit paths and a
built-in jitter attenuator. An on-chip clock adapter
generates all line-rate clocks from a single input
clock. Control interface options include 8-bit parallel,
SPI, and hardware mode.
FEATURES
摟
摟
摟
摟
摟
摟
摟
摟
Pin-Compatible Family of Products
Each Port Independently Configurable
Receive Clock and Data Recovery for Up to 380
meters (DS3), 440 meters (E3), or 360 meters
(STS-1) of 75W Coaxial Cable
Standards-Compliant Transmit Waveshaping
Three Control Interface Options: 8-Bit Parallel,
SPI, and Hardware Mode
Built-In Jitter Attenuators can be Placed in Either
the Receive or Transmit Paths
Jitter Attenuators Have Provisionable Buffer
Depth: 16, 32, 64, or 128 Bits
Built-In Clock Adapter Generates All Line-Rate
Clocks from a Single Input Clock (DS3, E3,
STS-1, OC-3, 19.44MHz, 38.88MHz,
77.76MHz)
B3ZS/HDB3 Encoding and Decoding
Minimal External Components Required
Local and Remote Loopbacks
Low-Power 3.3V Operation (5V Tolerant I/O)
Industrial Temperature Range: -40擄C to +85擄C
Small Package: 144-Pin, 13mm x 13mm
Thermally Enhanced CSBGA
Drop-In Replacement for DS3151/52/53/54 LIUs
IEEE 1149.1 JTAG Support
APPLICATIONS
SONET/SDH and PDH Multiplexers
Digital Cross-Connects
Access Concentrators
ATM and Frame Relay Equipment
Routers
PBXs
DSLAMs
CSU/DSUs
FUNCTIONAL DIAGRAM
EACH LIU
LINE IN
DS3, E3,
OR STS-1
RXP
RXN
CLK
DATA
RECEIVE
CLOCK
AND DATA
CONTROL
STATUS
TRANSMIT
CLOCK
AND DATA
摟
摟
摟
摟
摟
摟
摟
摟
Features continued on page 5.
Dallas
Semiconductor
DS325x
ORDERING INFORMATION
PART
DS3251
DS3251N
DS3252
DS3252N
DS3253
DS3253N
DS3254
DS3254N
LIU
1
1
2
2
3
3
4
4
TEMP RANGE
0擄C to +70擄C
-40擄C to +85擄C
0擄C to +70擄C
-40擄C to +85擄C
0擄C to +70擄C
-40擄C to +85擄C
0擄C to +70擄C
-40擄C to +85擄C
PIN-PACKAGE
144 TE-CSBGA
144 TE-CSBGA
144 TE-CSBGA
144 TE-CSBGA
144 TE-CSBGA
144 TE-CSBGA
144 TE-CSBGA
144 TE-CSBGA
LINE OUT
DS3, E3,
OR STS-1
TXP
TXN
CLK
DATA
Note:
Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device
may be simultaneously available through various sales channels. For information about device errata, click here:
www.maxim-ic.com/errata.
1 of 71
REV: 061705

DS3253N 產(chǎn)品屬性

  • Maxim Integrated Products

  • Tube

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