
Note (3). Transmitter eye mask definition
Upstream Bit rate (Mbps)  | 1244.16Mbit/s  | 
x1/x4  | 0.22/0.78  | 
x2/x3  | 0.40/0.60  | 
y1/y4  | 0.17/0.83  | 
y2/y3  | 0.20/0.80  | 
4. Specification of Receiver
Parameter | Symbol  | Min.  | Typ.  | Max.  | Unit  | Note  | 
Input Optical Wavelength  | λIN  | 1480  | 
  | 1500  | nm  | APD | 
Receiver Sensitivity  | PIN  | 
  | 
  | dBm  | Note (1)  | |
Input Saturation Power (Overload)  | PSAT  | 
  | 
  | dBm  | 
  | |
Signal Detect- Assert Power  | PA  | 
  | 
  | dBm  | 
  | |
Signal Detect- Deassert Power  | PD  | 
  | 
  | dBm  | Note (2)  | |
Signal Detect- Hysteresis  | 
 | 0.5  | 2  | 4  | dB  | 
  | 
Consecutive Identical Bit Immunity  | 
  | 72  | 
  | 
  | bits  | 
  | 
Optical Crosstalk from Internal Laser  | Xopt  | 
  | 
  | dB  | 
  | |
Polarization Dependent Loss  | 
  | 
  | 
  | 0.5  | dB  | 
  | 
Tolerance to reflected optical power  | 
  | 
  | 
  | 10  | dB  | 
  | 
Receiver Reflectance  | 
  | 
  | 
  | dB  | Note (3)  | |
Output Data Rise/Fall time  | tr/tf  | 
  | 
  | 150  | ps  | Note (4)  | 
Optical Isolation of Receiver  | 
  | 40  | 
  | 
  | dB  | 
  | 
Note (1). Measured with 1490nm, ER=10dB; BER 
Note (3). When the terminal is viewed from the optical path, the reflection toward the optical path of the optical signal with a central wavelength of 1480nm to 1500nm transmitted to terminal.
Note (4). These are 20%~80% values
3  | Revision: S2  | 
  | 12/26/2006  | 
DELTA ELECTRONICS, INC.  | www.deltaww.com  |