ACS411CS Semtech Corporation, ACS411CS Datasheet

ACS411CS

Manufacturer Part Number

ACS411CS

Description

Acapella Optical Modem ic

Manufacturer

Semtech Corporation

Datasheet

1.ACS411CS.pdf (43 pages)

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Acapella Optical Modem IC

The ACS411CS is a complete controller, driver and receiver chipset supporting

full-duplex synchronous transmission up to 51.840Mbps over single/twin

optical fiber. The designer can share the available bandwidth over 1 to 16

main channels.

In addition to the main channels, the ACS411CS provides two independent

maintenance channels with a data rate selectable up to 256kbps. On the

electrical side the ACS411CS has a selectable interface for either NRZ or

the pseudo bipolar data coding types HDB3/AMI/B3ZS/B6ZS/B8ZS.

The ACS411CS has a parallel microprocessor bus interface. This can be

used for device set-up, diagnostics, control and status analysis. Additional

flags for Tx data status, Rx data status and alarm indication for both near

end and far end receive fail are accessible via the uP interface.

Communicating modems automatically maintain synchronization with each

General Description

Three chip set supporting full duplex serial transmission over

Configurable parallel microprocessor bus interface.

Up to 16 independent synchronous data channels.

1 x OC1 (STS1) @ 51.840Mbps

1 x E3/T3

4 x E2, 7 x T2

16 x E1/T1

Select between NRZ and pseudo-bipolar HDB3/AMI/B3ZS/

B6ZS/B8ZS input data coding types.

Incorporates 2 x 256kbps maintenance channels with optionof

multi channel operation with a framing signal.

Link budgets of 27dB with Laser + PIN on single mode fiber.

Conforms to all jitter attenuation, jitter transfer and input jitter

tolerance specification defined by AT&T, ITU-T and Bellcore

recommendations.

Bit Error Rate (BER) of < 10

ACS9020 available in 64 pin TQFP and ACS4110 available in

176 pin TQFP package.

twin optical fiber, one fiber with WDM.

16to1 Mux

1to16 Mux

ACS411CS Main Features

8 bit parallel

bus interface

Twin fiber full duplex system using ACS411CS chip set

with external T1/E1 Framer ICs and microprocessor.

ACS411CS

TPOS16/TNEG16

RPOS16/RNEG16

TmCLK/RmCLK

TPOS1/TNEG1

RPOS1/RNEG1

device setup

mode contr ol

Tx data status

Rx data status

status reset

TmD1/RmD1

TmD2/RmD2

RCLK(16:1)

TCLK(16:1)

16 transmit data channels

16 receive data channels

16 transmit data clocks

16 receive data clocks

2 transmit maint. channels

2 receive maint. channels

1 transmit maint. clock

1 receive maint. clock

Twin Fiber Link

-10

RPOS16/RNEG16

ACS411CS

TPOS16/TNEG16

RmCLK/TmCLK

RPOS1/RNEG1

device setup

mode contr ol

Tx data status

Rx data status

status reset

TPOS1/TNEG1

RmD1/TmD1

RmD2/TmD2

RCLK(16:1)

TCLK(16:1)

8 bit parallel

bus interface

1to16 Mux

16to1 Mux

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