Datasheet > 29704-BRF-003-A

29704-BRF-003-A

更新时间： 2024-11-25 01:19:55

品牌	Logo	应用领域
泰科 - TE		ATM 异步传输模式
页数	文件大小	规格书
2页	366K
描述
OptiPHY F155 Quad OC-3/STM-1 ATM/POS PHY

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29704-BRF-003-A 数据手册

™

OptiPHY F155 Quad OC-3/STM-1 ATM/POS PHY

CX29704/2/1

Four-Channel CX29704, two-channel

CX29702, one-channel CX29701 155Mbps

ATM/POS PHY with Clock and Data Recovery

KEY FEATURES

> Integrated clock and data

recovery (CDR)

> Synthesizes a 155 MHz Tx

clock from a 19 MHz input

> Clock recovery conforms

to GR-253-CORE jitter

requirements

> UTOPIA Level 2 and POS

Level 2 system interfaces

The CX2970x is an integrated circuit that implements

four-channel ATM/Packet over SONET/SDH (POS)

processing functions at 155.52 Mbps. The device contains

both the PMD and TC sublayers and features a UTOPIA

Level 2 interface to the ATM layer or, optionally, a POS

PHY Level 2 interface to the link layer. This device also

includes dedicated serial ports for the insertion and

extraction of the DCC overhead bytes.

> Low-power, 3.3 V CMOS

technology

and stuffing/destuffing operations. Data is exchanged

with higher-layer devices using a POS PHY Level 2 interface.

SONET/SDH Processing

In the transmit path, this device generates all section,

line and path overhead bytes, in addition to implementing

framing, scrambling and alarm indication functions. On the

receive path, all framing, descrambling, alarm detection and

pointer interpretations are performed. A serial interface

inserts and extracts the section or line DCC bytes.

Line Interface

The CX2970x includes on-chip clock and data recovery

(CDR) for 155.52 Mbps line rates. This CDR block also

implements the serialize/deserialize functions. On

the receive path, after recovery of the data and its

associated clock, data is sent to the SONET/SDH

framer via a parallel bus.

ATM Cell Processing

For ATM cell processing, the CX2970x performs all cell

encapsulation, HEC calculation, cell delineation, payload

scrambling/descrambling and idle cell insertion/filtering.

Data is exchanged with a higher-layer device using a

UTOPIA Level 2 interface.

Higher-Layer Interface

The CX2970x supports several interfaces to higher-

layer devices. The component supports a UTOPIA Level

2 interface for ATM cells and a POS PHY interface for

PPP packets in POS mode. Up to eight CX2970x devices

can be connected to a single higher-level device

(multiport ATM-layer or POS-layer device),

POS Processing

In POS mode, the CX2970x performs all HDLC framing,

scrambling/descrambling, interframe fills, FIFO management

in various operation modes.

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与29704-BRF-003-A相关器件

型号	品牌	获取价格	描述	数据表
29704-BRF-003-A_15	TE	获取价格	OptiPHYâ¢ F155 Quad OC-3/STM-1 ATM/POS PHY
29704-EVMD-001-C	TE	获取价格	OptiPHY-F155 STS-3/STM-1 SONET/SDH ATM/POS Framer
29704-EVMD-001-C_15	TE	获取价格	OptiPHY-F155 STS-3/STM-1 SONET/SDH ATM/POS Framer EVM User Manual
29705	ROCHESTER	获取价格	A TWO OUTPUT PORT SRAM featuring separate output control made from original AMD wafers
2970565	PHOENIX	获取价格	Modular Terminal Block
29705BXA	ROCHESTER	获取价格	A TWO OUTPUT PORT SRAM featuring separate output control made from original AMD wafers
29707.5	LITTELFUSE	获取价格	Blade Terminal & Special Purpose Fuses - Low Voltage
29707.5LXN	LITTELFUSE	获取价格	Electric Fuse, 7.5A, 1000A (IR),
29707.5WXNV	LITTELFUSE	获取价格	Electric Fuse, 7.5A, 1000A (IR),
2971-05-00	COTO	获取价格	Dry Reed Relay, 1 Form C, SPDT, Latched, 0.25A (Contact), 150VDC (Contact), DC Input, Rand

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