LT-74D73D-PG Datasheet, PDF (3/5 Pages) Optoway Technology Inc – 3.3V, 1.25 Gbps 1490 nm Continuous-Mode TX / 1.25 Gbps 1310 nm Burst-Mode RX 2X5 SFF Package, GE-PON OLT Transceiver (IEEE 802.3ah-2004 1000BASE PX10)

Optoway
3
LT-74D73D-PG
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Receiver Characteristics ( 0^oC < Topr < 70^oC, 3.13V < Vcc < 3.47V )
Parameter
Symbol
Min.
Typ.
Max.
Units
Notes
Optical
Sensitivity
Sen
-24
dBm
3
Saturation Optical Power
Sat
-3
dBm
3
Wavelength of Operation
1260
1360
nm
4
Data Rate
1.25
Gb/s
Settling Time
DC Optical Tolerance
400
Sen +3
ns
5, 6
dB
Optical Return Loss
20
dB
Electrical
Data Output Voltage – Low
V_OL - V_CC
-2.0
-1.58
V
7
Data Output Voltage – High
V_OH - V_CC
-1.1
-0.74
V
7
Rest Between Packet
Resetless
3. Sensitivity and saturation levels at BER 1E-12 @ 2⁷-1@ER=10. The burst packet data pattern follows 8B10B protocol.
4. At least 30 dB optical isolation for the wavelength 1480 to 1500 nm.
5. No reset is needed.
6. The optical power difference between neighboring packets is up to 15 dB.
7. These inputs are compatible with 10K, 10KH and 100K ECL and LVPECL outputs.
CONNECTION DIAGRAM
PIN Signal Name
1 RX Ground
2 RX Vcc
3 NC
4 RX OUT (-)
5 RX OUT (+)
MS MS
Description
Receiver Ground. Connect this pin to
ground plane.
RX power supply input. Connect to 3.3
V power supply
No connection
Negative RX output, Differential
LVPECL. DC coupled.
Positive RX output, Differential
LVPECL. DC Coupled.
Mounting Studs. Connect to Chassis
Ground
PIN Signal Name
10 TD-
9 TD+
8 TxDis
7 TX Ground
6 TX Vcc
Description
Negative transmitter data In. Internally
terminated for LVPECL. AC coupled.
Positive transmitter data In. Internally
terminated for LVPECL. AC coupled.
Transmitter Disable. TX is disabled
when this pin is low. Internally pulled to
“High”..
Transmitter Ground. Directly connect
this plan to ground plane
TX power supply input. Connect to 3.3
V power supply
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OPTOWAY TECHNOLOGY INC. No.38, Kuang Fu S. Road, Hu Kou, Hsin Chu Industrial Park, Hsin Chu, Taiwan 303
Tel: [phone]
Fax: [phone]
E-mail: [e-mail] http: // www.optoway.com.tw 3/1/2006 V1.0