Datasheet > ACS101A

ACS101A

更新时间： 2024-10-31 22:05:19

品牌	Logo	应用领域
商升特 - SEMTECH		调制解调器光纤
页数	文件大小	规格书
12页	124K
描述
Acapella Optical Modem IC

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数据手册

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ACS101A 数据手册

Acapella Optical Modem IC

ACS101A Main Features:

Full duplex serial transmission over one fiber.

Link lengths up to 5km.

Supports asynchronous data rates from DC to 76.8kbps.

Supports synchronous data rates up to 512kbps.

Full diagnostic modes - Remote and Local loopback.

Uses a single Ping Pong LED (PPLED) to both receive and transmit

data for single fiber operation.

Supports two additional low frequency asynchronous channels or

the RS-232 handshake signals.

Digital mode for non fiber applications - RF.

Bit Error Rate (BER) < 10^-9

Available in 44 pin PLCC package.

TRC

TxD

PPLED

Digital

Filter

Data

Compress

FIFO Time

Compress

3B4B

Encoder

TxCL

LED

Driver

LED

Receiver

Rx D

Digital

Filter

Data

Decompress

FIFO Time

Decompress

3B4B

Decoder

Rx CL

RS-232 Interface

Control Logic

DCDB CT S DSR RSS RT S DTR

DR(3:1) DM(3:1)

CKC PORB

Equivalent Block Diagram of ACS101A

General Description:

The ACS101A is a complete controller, driver and receiver IC, supporting full-

duplex asynchronous transmission from DC to 76.8kbps and synchronous

data rates up to 512kbps over one optical fiber. The ACS101A also supports

two additional low frequency asynchronous channels or RS-232 handshake

signals, RTS, CTS, DTR and DSR.

The ACS101A employs data compression and time compression techniques,

affording high launch power in short bursts, leading to a low average power

consumption. The advantage of this approach is that high link budgets can be

achieved with inexpensive optical components.

Communicating optical modems automatically maintain synchronisation

with each other such that the receive phase of one modem is lined-up with

the transmit phase of the other, compensating for the propagation delay

presented by the link. Link lengths from zero to maximum distance are

catered for automatically. In 'standard' mode, the fiber may be up to 2.5km

long, or up to 5km in 'double' mode.

ACS101A Issue 1.2 October 1999.

12 3 4 5 6 7...12

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