850 nm Multi-mode Transceiver Gigabit Interface Converter (GBIC), 1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet 3.3V/5V

Model No. C85-1250M-G8A

Description

Lasermate Fiber Channel/Gigabit Ethernet 850nm Gigabit Interface Converter (GBIC) with link budget 8.5dB is a compact optical transceiver capable of optical gigabit transmission over inexpensive multimode fiber for distances up to 550m.

Innovative design principles allow this product to meet EMI requirements as well as all CDRH and EN 60825-1 Class 1 eye safety requirements. A long wavelength version of this device for single mode fiber is also available.

Features

n Compliant with Gigabit Interface Converter Specification

n Compliant with IEEE802.3z Gigabit Ethernet standard

n Compliant with Fiber Channel standard

n SCA-2 Host connector

n Duplex SC connector

n Differential PECL inputs and outputs

n Single power supply 3.3V and 5V

n TTL signal detect indicator

n Hot Pluggable

n Class 1 laser product complies with EN 60825-1

Application

n Distributed multi-processing

n Switch to switch interface

n High speed I/O for file server

n Bus extension application

n Channel extender, data storage

Ordering Information

PART NUMBER	INPUT/OUTPUT	SIGNAL DETECT	VOLTAGE	TEMPERATURE
C85-1250M-G8A	AC/AC	TTL	3.3V/5V	0°C to 70 °C

Absolute Maximum Ratings

PARAMETER	SYMBOL	MIN	MAX	UNITS	NOTE
Storage Temperature	T_S	-40	85	°C
Supply Voltage	Vcc	-0.5	6.0	V
Input Voltage	V_IN	-0.5	Vcc	V
Output Current	I_o	---	50	mA
Operating Current	I_OP	---	400	mA

Recommended Operating Conditions

PARAMETER	SYMBOL	MIN	MAX	UNITS	NOTE
Ambient Operating Temperature	T_AMB	0	70	°C
Supply Voltage	Vcc	3.1	5.25	V
Supply Current	I_TX + I_RX	---	300	mA

Transmitter Electro-optical Characteristics **(Vcc = 3.1 V to 5.25 V, T_A = 0°C to 70°C)**

PARAMETER	SYMBOL	MIN	TYP.	MAX	UNITS	NOTE
Output Optical Power (50/125mm fiber, NA=0.20) (62.5/125mm fiber, NA=0.275)	P_out	-9.5	---	-4	dBm	Average
Extinction Ratio	ER	9	---	---	dB
Coupled Power Ratio	CPR	9	---	---	dB
Center Wavelength	l_C	830	850	860	nm
Spectral Width (RMS)	Dl	---	---	0.85	nm
Rise/Fall Time, (20-80%)	T_r, _f	---	---	260	ps
Relative Intensity Noise	RIN	---	---	-117	dB/Hz
Total Jitter	TJ	---	---	227	ps
Output Eye	Compliant with IEEE802.3z
Max. P_out TX-DISABLE Asserted	P_OFF	---	---	-35	dBm
Differential Input Voltage	V_DIFF	0.65	---	2.0	V
Transmit Fault Output-Low	TX_FAULT_L	0.0	---	0.5	V
Transmit Fault Output-High	TX_FAULT_H	2.4	---	V_CC	V
TX_DISABLE Assert Time	t_off	---	---	10	ms
TX_DISABLE Negate Time	t_on	---	---	1	ms
Time to initialize, include reset of TX_FAULT	t_init	---	---	300	ms
TX_FAULT from fault to assertion	t_fault	---	---	100	ms
TX_DISABLE time to start reset	t_reset	10	---	---	ms

Receiver Electro-optical Characteristics (Vcc = 3.1 V to 5.25 V, T_A = 0°C to 70°C)

PARAMETER	SYMBOL	MIN	TYP.	MAX	UNITS	NOTE
Optical Input Power-maximum	P_IN	0	---	---	dBm	BER < 10^-12
Optical Input Power-minimum (Sensitivity)	P_IN	---	---	-18	dBm	BER < 10^-12
Operating Center Wavelength

Application

Ordering Information

Transmitter Electro-optical Characteristics (Vcc = 3.1 V to 5.25 V, TA = 0 °C to 70 °C)

Transmitter Electro-optical Characteristics **(Vcc = 3.1 V to 5.25 V, T_A = 0°C to 70°C)**