ACS401
ACS401 is Acapella Optical Modem manufactured by SEMTECH.
Acapella Optical Modem IC
ACS401 Main Features
:
- Enables up to four full-duplex serial transmission channels through a single fiber optic cable, providing eight virtual fiber paths.
- Two additional low speed handshake signals.
- Supports Ping Pong LED (PPLED) and LASER Duplex Devices (LDD) for single fiber applications or dual fiber applications using low cost LED/LASER emitters and PIN Diode receiver.
- Link lengths up to 95 km with appropriate Laser.
- Maximum data rate 128 kbps
- optimised for talk-set applications.
- Typical 7 m A (average) current consumption, including LASER drive current.
- Digital mode, allowing the user to add an external amplifier. Also enables the ACS401 to be used in non-fiber applications.
- Bit Error Rate (BER) of 10-9
Equivalent block diagram of ACS401.
Tx D1 Tx D2 Tx D3 Tx D4 Tx CL Rx D1 Rx D2 Rx D3 Rx D4 Rx CL VA+ VD+ GND
4 3 4
Digital Filter
FIFO press
3B4B Encoder
PPLED
LED Driver PIN Receiver Digital Filter FIFO Depress 3B4B Decoder
LAN PINP PINN
Single Fiber
Control Data
Status
Control Logic
XTAL
XO1 XI1 XO2 XI2
HBT CLK9 ERRC ERRL
DR(1:3) DM(1:3)...
