Product Details

1.25G SFP transceiver BIDI 20km with SC connector

1.25Gbps Bi-directional SFP Transceiver

Products feature

l Compliant with IEEE802.3z GigabitEthernet Standard

l Compliant with Fiber Channel 100-SM-LC-L standard

l Industry standardsmall form pluggable(SFP) package

l Simplex LC connector

l Differential LVPECL inputs and outputs

l Single power supply 3.3V

l TTL signal detect indicator

l Hot Pluggable

l Class 1 laser product complies with EN60825-1

l RoHS Compliant

l CPRI ready

Applications

l Gigabit EthernetApplication

l Point-to-Point FTTX Application

The PHY-3524-1LX Small Form Factor Pluggable (SFP) transceivers are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA)1. They are simultaneously compatible with Gigabit Ethernet as specified in IEEE Std 802.32 and

Fibre Channel FC- PI-2 Rev. 7.03. They are RoHS compliant and lead-free per Directive

2002/95/EC4

Ⅰ. Pin Descriptions

Pin	Symbol	Name/Description	Ref.
1	VEET	Transmitter Ground (Common with Receiver Ground)	1
2	TFAULT	Transmitter Fault. Not supported.
3	TDIS	Transmitter Disable. Laser output disabled on high or open.	2
4	MOD_DEF(2)	Module Definition 2. Data line for Serial ID.	3
5	MOD_DEF(1)	Module Definition 1. Clock line for Serial ID.	3
6	MOD_DEF(0)	Module Definition 0. Grounded within the module.	3
7	Rate Select	No connection required
8	LOS	Loss of Signal indication. Logic 0 indicates normal operation.	4
9	VEER	Receiver Ground (Common with Transmitter Ground)	1
10	VEER	Receiver Ground (Common with Transmitter Ground)	1
11	VEER	Receiver Ground (Common with Transmitter Ground)	1
12	RD-	Receiver Inverted DATA out. AC Coupled
13	RD+	Receiver Non-inverted DATA out. AC Coupled
14	VEER	Receiver Ground (Common with Transmitter Ground)	1
15	VCCR	Receiver Power Supply
16	VCCT	Transmitter Power Supply
17	VEET	Transmitter Ground (Common with Receiver Ground)	1
18	TD+	Transmitter Non-Inverted DATA in. AC Coupled.
19	TD-	Transmitter Inverted DATA in. AC Coupled.
20	VEET	Transmitter Ground (Common with Receiver Ground)	1

Notes:

1. Circuit ground is internally isolated from chassis ground.

2. Laser output disabled on TDIS >2.0V or open, enabled on TDIS <0.8V.

3. Should be pulled up with 4.7k – 10kohms on host board to a voltage between 2.0V and

3.6V.MOD_DEF(0) pulls line low to indicate module is plugged in.

4. LOS is open collector output. Should be pulled up with 4.7k – 10kohmson host board to a voltage between 2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicatesloss of signal.

Ⅱ.Absolute Maximum Ratings

Parameter	*Symbol*	Min.	Max.	Units
Storage Temperature	TS	-45	+100	℃
Supply Voltage	*Vcc*	-0.5	6.0	V
Input Voltage	*VIN*	-0.5	Vcc	V
Output Current	Io		50	mA
Operating Current	*IOP*		400	mA
Case Operating Temperature	TC	-40	+85	℃
Supply Current	*ITX + IRX*		250	mA

Ⅲ.Transmitter Electro-optical Characteristics

Vcc = 3.1 V to 3.5 V, TC =-40℃ to +85 ℃

Parameter	*Symbol*	Min.	Typ.	Max	Units	Note
Output Optical Power 9/125 μm fiber	*Pout*	-9	---	-3	dBm	1
		-4	---	+3	dBm	2
		-3	---	+3	dBm	3
Extinction Ratio	ER	9	---	---	dB
Center Wavelength	λC	1260	1310	1360	nm
Spectral Width (RMS)	Δλ	---	---	2.5	nm	1
Spectral Width (RMS)	Δλ	---	---	1	nm	2,3
Rise/Fall Time, (20−80%)	*Tr/f*	---	---	260	ps
Relative Intensity Noise	*RIN*	---	---	-120	dB/Hz
Total Jitter	TJ	---	---	227	ps
Output Eye	*Compliant with IEEE802.3z*
*Max. Pout* TX-DISABLE Asserted**	*POFF*	---	---	-45	dBm
Differential Input Voltage	*VDIFF*	0.4	---	2.0	V

Note

1.PHY-3524-1L2 2.PHY-3524-1L4 3.PHY-3524-1L6

Receiver Electro-optical Characteristics

Vcc = 3.1 V to 3.5 V, TC =-40℃ to +85 ℃

Parameter	*Symbol*	Min.	Typ.	Max.	Units	Note
Optical Input Power-maximum	*PIN*	0	---	---	dBm	BER < 10-12
Optical Input Power-minimum (Sensitivity)	*PIN*	---	---	-24	dBm	BER < 10-12
Operating Center Wavelength	λC	1480	1550	1580	nm
Optical Return Loss	*ORL*	14	---	---	dB	1480~1580nm
Optical isolation	*ISO*	---	---	-40	dB	1480~1580nm
Signal Detect-Asserted	PA	---	---	-24	dBm
Signal Detect-Deasserted	PD	-35	---		dBm
Differential Output Voltage	*VDIFF*	0.5	---	1.2	V
Data Output Rise, Fall Time (20−80%)	*T r/f*	---	---	0.35	ns
Receiver Loss of Signal Output Voltage-Low	*RX_LOSL*	0	---	0.5	V
Receiver Loss of Signal Output Voltage-High	*RX_LOSH*	2.4	---	Vcc	V

Block Diagram of Transceiver

Dimensions