1.25Gbps 1550nm 60Km LC DDM

Chotumizira cha SFP

1.25Gbps 1550nm 60Km LC DDM

TheMa transceiver a SFPndi ma module ogwira ntchito bwino komanso otsika mtengo omwe amathandizira kuchuluka kwa deta ya 1.25Gbps ndi mtunda wotumizira wa 60km ndi SMF.

Chotumizira uthenga chimakhala ndi magawo atatu: aSChotumizira laser cha FP, PIN photodiode yolumikizidwa ndi trans-impedance preamplifier (TIA) ndi gawo lowongolera la MCU. Ma module onse amakwaniritsa zofunikira za chitetezo cha laser cha kalasi yoyamba.

Ma transceivers amagwirizana ndi ntchito za SFP Multi-Source Agreement ndi SFF-8472 digital diagnostics.

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Tsatanetsatane wa Zamalonda

FAQ

Ma tag a Zamalonda

Zinthu Zamalonda

1. SFP phukusi lokhala ndi cholumikizira cha LC.

2. 1550nm DFB laser ndi PIN photo detector.

3. Kufikira 60Km pa SMF.

4. +3.3V magetsi amodzi.

5. Chida cholumikizira/chotulutsa deta chogwirizana ndi LVPECL.

6. EMI yochepa komanso chitetezo chabwino cha ESD.

7. muyezo wa chitetezo wa laser wa IEC-60825 wotsatira.

8. Yogwirizana ndi RoHS.

9. Kugwirizana ndi Digital Diagnostic SFF-8472.

10. Malo Opatulira Chizindikiro Okhala Pang'ono ndi Chikwama.

Kugwiritsa ntchito

1. 1.25Gb/s 1000Base-LXEthaneti.

2. Njira ya Ulusi ya Dual Rate 1.06 / 2.125 Gb/s.

Ma Ratings Okwanira Kwambiri:

Chizindikiro	Chizindikiro	Zochepera	Pazipita	Mayunitsi
Kutentha Kosungirako	Tst	-40	+85	℃
Mphamvu Yopereka	Vcc	0	+3.6	V
Chinyezi Chogwira Ntchito	RH	5	95	%

Malo Ogwirira Ntchito:

Chizindikiro	Chizindikiro	Ochepera	Zachizolowezi	Max	Mayunitsi
Mphamvu Yopereka	Vcc	3.15	3.3	3.45	V
Kutentha kwa Mlanduwu Wogwira Ntchito	Tc	0		+70
Kutaya Mphamvu				1	W
Chiwerengero cha Deta			1.25		Gbps

Makhalidwe Owoneka

(Kutentha Kogwira Ntchito Kozungulira 0℃ mpaka +70℃, Vcc =3.3 V)

Chizindikiro	Chizindikiro	Zochepa.	Mtundu.	Max.	Mayunitsi
Chotumiza Gawo
Utali wa Mafunde a Pakati	λo	1540	1550	1560	nm
Kuchuluka kwa Spectral (RMS)	△λ	-	-	1	nm
Mphamvu Yotulutsa Yapakati	Po	-5	-	0	dBm
Chiŵerengero cha Kutha	Er	8	-		dB
Kukwera/Kugwa Nthawi (20%~80%)	Tr/Tf			180	ps
Kugwedezeka konse	Tj			0.43	UI
Chithunzi cha Maso Owoneka	IEEE 802.3z ndi ANSI Fiber Channel zimagwirizana
Wolandila Gawo
Utali wa Mafunde a Pakati	λo	1260		1620	nm
Kuzindikira kwa Wolandila	Rsen			-24	dBm
Kuchuluka kwa Wolandila	Rov	-3			dBm
Kutayika Kobwerera		12			dB
Kutsimikiza kwa LOS	LOSA	-36			dBm
Mchere wa ku Los Angeles	LOSD			-25	dBm
LOS Hysteresis		0.5		5

Makhalidwe Amagetsi

(Kutentha Kogwira Ntchito Kozungulira 0℃ mpaka +70℃, Vcc =3.3 V)

Chizindikiro		Chizindikiro	Zochepa.	Mtundu.	Max.	gawo
Gawo la Chopatsira
Kusiyana kwa Zolowera Kusafuna		Zin	90	100	110	Ohm
Kusiyanitsa kwa Kulowetsa Deta		Vin	500		2400	mV
Kuletsa kwa TX	Letsani		2.0		Vcc	V
Kuletsa kwa TX	Yambitsani		0		0.8	V
Cholakwika cha TX	Limbikitsani		2.0		Vcc	V
Cholakwika cha TX	Deassert		0		0.8	V
Gawo la Wolandila
Kusiyanitsa kosiyana kwa zotsatira		Zout		100		Ohm
Kusiyanitsa kwa Kulowetsa Deta		Vout	370		2000	mV
Rx_LOS	Limbikitsani		2.0		Vcc	V
Rx_LOS	Deassert		0		0.8	V

MFUNDO ZA EEPROM (A0)

Addr	Kukula kwa Munda (Mabaiti)	Dzina la Munda	HEX	Kufotokozera
0	1	Chizindikiro	03	SFP
1	1	Chizindikiro Chowonjezera	04	MOD4
2	1	Cholumikizira	07	LC
3-10	8	Transceiver	00 00 00 02 12 00 0D 01	Khodi Yotumizira
11	1	Kulemba ma code	01	8B10B
12	1	BR, dzina	0D	1250M bps
13	1	Yasungidwa	00
14	1	Utali (9um)-km	3C	60km
15	1	Kutalika (9um)	64/C8/FF
16	1	Kutalika (50um)	00
17	1	Kutalika (62.5um)	00
18	1	Utali (mkuwa)	00
19	1	Yasungidwa	00
20-35	16	Dzina la wogulitsa	57 49 4E 54 4F 50 20 20 20 20 20 20 20 20 20 20 20	WINTOP
36	1	Yasungidwa	00
37-39	3	OUI ya ogulitsa	00 00 00
40-55	16	Wogulitsa PN	xx xx xx xx xx xx xx xx xx xx xx xx xx xx xx xx xx xx xx xx	ASC II
56-59	4	Wogulitsa wogulitsa	31 2E 30 20	V1.0
60-61	2	Kutalika kwa mafunde	06 0E	1550nm
62	1	Yasungidwa	00
63	1	CC BASE	XX	Chongani kuchuluka kwa baiti 0 ~ 62
64-65	2	Zosankha	00 1A	LOS, TX_DISABLE, TX_FAULT
66	1	BR, max	32	50%
67	1	BR, mphindi	32	50%
68-83	16	Wogulitsa SN	00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00	Zosadziwika
84-91	8	Khodi ya tsiku la wogulitsa	XX XX XX 20	Chaka, Mwezi, Tsiku
92-94	3	Yasungidwa	00
95	1	CC_EXT	XX	Chongani kuchuluka kwa baiti 64 ~ 94
96-255	160	Zogulitsa zenizeni

Matenda a matenda

Chizindikiro	Malo ozungulira	Kulondola	Chigawo	Kulinganiza
Kutentha	0～70	±3	℃	Zamkati
Voteji	3.15～3.45	0.1	V	Zamkati
Tsankho lamakono	10～80	± 2	mA	Zamkati
Mphamvu ya Tx	-6～1	± 2	dBm	Zamkati
Mphamvu ya Rx	-26~-3	±3	dBm	Zamkati

Kufotokozera kwa Pin

Mapini	Dzina	Kufotokozera	ZINDIKIRANI
1	VeeT	Malo Otumizira
2	Cholakwika cha Tx	Chizindikiro cha Cholakwika cha Chopatsira	1
3	Kuletsa Tx	Cholepheretsa Chotumiza	2
4	MOD DEF2	Tanthauzo la Module 2	3
5	MOD DEF1	Tanthauzo la Module 1	3
6	MOD DEF0	Tanthauzo la Module 0	3
7	Sankhani Mtengo	Osalumikizidwa
8	LOS	Kutayika kwa Chizindikiro	4
9	VeeR	Malo Olandirira
10	VeeR	Malo Olandirira
11	VeeR	Malo Olandirira
12	RD-	Inv. Kutulutsa Deta Kolandilidwa	S
13	RD+	Kutulutsa Deta Yolandiridwa	S
14	VeeR	Malo Olandirira
15	VccR	Mphamvu Yolandirira
16	VccT	Mphamvu Yotumizira
17	VeeT	Malo Otumizira
18	TD+	Kutumiza Deta Lowetsani	6
19	TD-	Kulowetsa Deta Yotumizira Inv.	6
20	VeeT	Malo Otumizira

Zolemba:

1. TX Fault ndi chotulutsa chotseguka chosonkhanitsa, chomwe chiyenera kukokedwa ndi chotsutsa cha 4.7k ~ 10kΩ pa bolodi la host mpaka pa voltage pakati pa 2.0V ndi Vcc + 0.3V. Logic 0 imasonyeza ntchito yabwinobwino; logic 1 imasonyeza vuto la laser la mtundu wina. Mu low state, chotulutsa chidzakokedwa mpaka pansi pa 0.8V.

2. TX Disable ndi cholowetsa chomwe chimagwiritsidwa ntchito kuzimitsa chotulutsa chowunikira. Chimakokedwa mu module ndi choletsa cha 4.7k~10kΩ. Mikhalidwe yake ndi iyi:

Chotsika (0~0.8V): Chotumiza chayatsidwa

(>0.8V, <2.0V): Zosadziwika

Wapamwamba (2.0~3.3V): Chotumiza Cholemala

Tsegulani: Chotumiza Cholemala

3. MOD-DEF 0,1,2 ndi ma pin ofotokozera module. Ayenera kukokedwa ndi 4.7k~10kΩresistor pa bolodi la host. Voltage yokoka-mmwamba iyenera kukhala VccT kapena VccR.

MOD-DEF 0 imayikidwa pansi pa module kusonyeza kuti moduleyo ilipo.

MOD-DEF 1 ndi mzere wa wotchi wa mawonekedwe awiri a waya a serial ID.

MOD-DEF 2 ndi mzere wa deta wa mawonekedwe awiri a waya a serial ID.

4. LOS ndi chotulutsa chotseguka chosonkhanitsa, chomwe chiyenera kukokedwa ndi chotsutsa cha 4.7k ~ 10kΩ pa bolodi la host mpaka pa voltage pakati pa 2.0V ndi Vcc + 0.3V. Logic 0 imasonyeza ntchito yabwinobwino; logic 1 imasonyeza kutayika kwa chizindikiro. Mu mkhalidwe wotsika, chotulutsa chidzakokedwa mpaka pansi pa 0.8V.

5. Izi ndi zotulutsa zosinthira. Ndi mizere yosiyanitsa ya 100Ω yolumikizidwa mkati mwa AC yomwe iyenera kuthetsedwa ndi 100Ω (yosiyanitsa) pa SERDES ya wogwiritsa ntchito.

6. Izi ndi zolowetsa zosinthira zosiyana. Ndi mizere yosiyana yolumikizidwa ndi AC yokhala ndi 100Ω differential termination mkati mwa module.

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