ACS4110 Просмотр технического описания (PDF) - Semtech Corporation
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ACS4110 Datasheet PDF : 43 Pages
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Acapella Optical Modem IC
ACS411CS Main Features
* Three chip set supporting full duplex serial transmission over
twin optical fiber, one fiber with WDM.
* 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 < 10-10
* ACS9020 available in 64 pin TQFP and ACS4110 available in
176 pin TQFP package.
8 bit parallel
bus interface
ACS411CS
device setup
mode contr ol
Tx data status
Rx data status
status reset
Twin Fiber Link
ACS411CS
device setup
mode contr ol
Tx data status
Rx data status
status reset
8 bit parallel
bus interface
TPOS1/TNEG1
R POS1/RNEG1
TPOS16/TNEG16 16 transmit data channels RPOS16/RNEG16
RPOS1/RNEG1 16 receive data channels TPOS1/TNEG1
16to1 Mux
1to16 Mux
R POS16/R NEG16
TCLK (16 :1)
R CL K( 16: 1)
16 transmit data clocks
16 receive data clocks
TPOS16/TNEG16
R CL K( 16: 1)
TCLK (16 :1)
TmD1/RmD1
TmD2/RmD2
TmCLK/RmCL K
2 transmit maint. channels
2 receive maint. channels
1 transmit maint. clock
1 receive maint. clock
R mD1 /TmD1
R mD2 /TmD2
R mCLK/TmCL K
1to16 Mux
16to1 Mux
Twin fiber full duplex system using ACS411CS chip set
with external T1/E1 Framer ICs and microprocessor.
General Description
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
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