OPEP-33-A4Q1RI
DELTA ELECTRONICS, INC.
5 Revision: S3
12/20/2007
www.deltaww.com
6. Transmitter Burst Mode Timing Characteristics
Parameter Symbol Min. Typ. Max. Unit Note
BiasCNT Enable Duration 1 us
Interval of BiasCNT Signal 0.112 1000000 us
VccT BiasCNT Data Input Optical Output
VccT < 3.1V X X OFF
Low X OFF
Floating Other
VccT > 3.1V High
Present Laser bias and modulation signal output
X = Don’t care
Other = Less than +7.5dBm (peak)
High = Logic high level, Low = logic low level
Floating = No Data Input, Present = Data Input,
OFF = Optical Power is less than –45dBm
BiasCNT
Optical Output Within 15% of steady state
Ton Toff
Data Input
L
H
7. Digital Diagnostic Monitor Accuracy
Parameter Accuracy Unit Calibration Note
Transceiver Internal Temperature ± 3℃ ℃ Internal TC=-20~+85℃
Power Supply Internal Voltage ± 3% V Internal VCC=3.3V±5%
TX Bias Current ± 10% mA Internal Specified by nominal bias value
TX Optical Power ± 3dB dBm Internal Not support in burst ONU
RX Optical Power ± 3dB dBm Internal -26 to -3dBm
Note. Temperature and Voltage is measured internal to the transceiver.
BiasCNT
Interval of BiasCNT Signal
BiasCNT Enable Duration