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DS31412 Datasheet

  • DS31412

  • 6-/8-/12-Channel DS3/E3 Framers

  • 89頁

  • MAXIM   MAXIM

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DESIGN KIT AVAILABLE
DS3146/DS3148/DS31412
6-/8-/12-Channel DS3/E3 Framers
www.maxim-ic.com
GENERAL DESCRIPTION
The DS3146/DS3148/DS31412 (DS314x) devices
include all necessary circuitry to frame and format up
to 12 separate DS3 or E3 channels. Each framer in
these devices is independently configurable to
support M23 DS3, C-Bit Parity DS3, or G.751 E3.
The framers interface to a variety of line interface
units (LIUs), microprocessor buses, and other system
components without glue logic. Each DS3/E3 framer
has its own HDLC controller, FEAC controller, and
BERT, as well as full support for error detection and
generation, performance monitoring, and loopbacks.
FEATURES
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6/8/12 Independent DS3/E3 Framers on a Single
Die
Framing and Formatting to M23 DS3, C-Bit Parity
DS3, and G.751 E3
LIU Interface can be Binary (NRZ) or Dual-Rail
(POS/NEG)
B3ZS/HDB3 Encoder and Decoder
Generate and Detect DS3/E3 Alarms
Integrated HDLC Controller for Each Channel
Integrated FEAC Controller for Each Channel
Integrated Bit Error-Rate Tester (BERT) for Each
Channel
Large Performance-Monitoring Counters
Line, Diagnostic, and Payload Loopbacks
Externally Controlled Transmit Overhead
Insertion Port
Support External Timing or Loop-Timing
Framers can be Powered Down When Not Used
8-Bit Processor Port Supports Muxed or
Nonmuxed Bus Operation (Intel or Motorola)
3.3V Supply with 5V Tolerant I/O
349-Pin, 27mm x 27mm BGA Package
IEEE 1149.1 JTAG Support
APPLICATIONS
SONET/SDH Muxes
PDH Muxes
Digital Cross-Connect Systems
Access Concentrators
ATM and Frame Relay Equipment
Routers
FUNCTIONAL DIAGRAM
LIU
INTERFACE
POS/NRZ
NEG
CLK
POS/NRZ
NEG/LCV
CLK
EACH FRAMER
SYSTEM
INTERFACE
CLK
DATA
SYNC
OVERHEAD
CLK
DATA
SYNC
TRANSMIT
FORMATTER
RECEIVE
FRAMER
ORDERING INFORMATION
PART
DS3146
DS3146N
DS3148
DS3148N
DS31412
DS31412N
NO. OF
FRAMERS
6
6
8
8
12
12
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
PIN-PACKAGE
349 BGA
349 BGA
349 BGA
349 BGA
349 BGA
349 BGA
Dallas
Semiconductor
DS3146/DS3148/DS31412
Pin Configurations appear at end of data sheet.
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 89
REV: 071103

DS31412 產(chǎn)品屬性

  • 1

  • 集成電路 (IC)

  • 接口 - 控制器

  • -

  • DS3/E3 調(diào)幀器

  • LIU

  • 3.135 V ~ 3.465 V

  • 960mA

  • -40°C ~ 85°C

  • 表面貼裝

  • 349-BGA 裸露焊盤

  • 349-HCBGA（27x27）

  • 托盤

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