L8628-01B - Hamamatsu Photonics K.K.

Features Applications

LED/PHOTO IC

Transmitter/receiver photo IC for optical link

For MOST automotive network, 50 Mbps band POF communications

L8628-01B, S8627-01B

L8628-01B and S8627-01B are transmitter and receiver photo ICs developed for MOST (Media Oriented System Transport) networks used in vehicles

to communicate multimedia information. The transmitter photo IC L8628-01B consists of a red LED, driver IC and current regulator chip incorporated

into a clear plastic package and can be set to an operating mode that reduces the optical output level by half. The receiver photo IC S8627-01B is a

monolithic photo IC fabricated by the PiN-BiP process and features a wide dynamic range. It also has a low power consumption "sleeping mode" and

an optical wakeup mode triggered by input of light. Both the transmitter and receiver photo IC input and output digital signals through a TTL interface.

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DC to 50 Mbps data communications

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TTL input

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Optical output 50 % cut mode

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Only for vehicle networks (MOST)

L8628-01B

S8627-01B

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4 M to 50 Mbps data communications

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Monolithic structure immune from external noise

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TTL output

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Wide dynamic range

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Sleeping mode with optical wakeup

■ Absolute maximum ratings (Ta= 25 °C)

Parameter Symbol L8628-01B, S8627-01B Unit

Supply voltage Vcc -0.5 to +7.0 V

Operating temperature To pr -40 to +95 °C

Storage temperature Tstg -40 to +110 °C

Soldering Ts ol 260 °C, 5 s, 3 times, at least 2.5 mm away from lead root °C

■ Electrical and optical characteristics (Ta= -40 to +85 °C, Vcc=4.75 to 5.25 V)

Parameter Symbol Condition Min. Typ. Max. Unit

Current consumption

(operation mode) Icco *1, *2 - - 30 mA

Current consumption (sleeping mode) Iccs Dark state - - 30 µA

Receiver level Popt3 Bi-phase signal -24 - -3.5 dBm

High level output voltage Voh Ioh= -150 µm 2.5 - - V

Low level output voltage Vol Iol=1.6 mA - - 0.4 V

Rise time tr - - 9

Vout

Fall time tf 10 to 90 % *1, *2 - - 7 ns

Pulse width variation tpwv *1, *2, *3, *5 18 - 29.8 ns

Pulse width distortion (average value) tapwd *1, *2, *3, *5 -1.8 - +6.6 ns

Operation to sleeping mode transition receivable level

Psl

Sleeping mode to operation transition receivable level

Pop *1, *2, *4 -39 - -25.5 dBm

High level voltage Vmh Ioh= -20 µA 4.0 - - V Mode

out Low level voltage Vml Iol=0.88 mA - - 0.5 V

*1: Measured with input signals conforming to SP3 MOST specification of physical layer rev. 1.0.

*2: Measured with RL=50 kΩ, CL=15 pF (including parasitic capacitance such as probe, connector and evaluation circuit board

pattern), and threshold voltage=1.5 V.

*3: An optical input waveform is generated with a Hamamatsu standard transmitter.

*4: Average optical power is measured with a POF (NA=0.5).

*5: Measured with BiPhase PRBS at 45.2 Mbps (NRZ signal conversion).

Note) • If modulated light at 4 Mbps or less (including DC light and no light input) is input to S8627-01B, the high and low levels

cannot be discerned.

• A bypass capacitor (0.1 µF) connected between Vcc and GND at a position within 3 mm from the lead, and a 10

µF capacitor is also connected to the power supply line nearby.

• The optical axis of the package lens is exactly aligned with the center axis of the optical plug,

and the gap between the lens surface and the optical reference plane of the plug is 0.1 mm.

S8627-01B

Specifications of these products are subject to change

without prior notice to keep up with changes in the

MOST standard.

HAMAMATSU PHOTONICS K.K., Solid State Division

1126-1 Ichino-cho, Higashi-ku, Hamamatsu City, 435-8558 Japan, Telephone: (81) 53-434-3311, Fax: (81) 53-434-5184, www.hamamatsu.com

U.S.A.: Hamamatsu Corporation: 360 Foothill Road, P.O.Box 6910, Bridgewater, N.J. 08807-0910, U.S.A., Telephone: (1) 908-231-0960, Fax: (1) 908-231-1218

Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49) 08152-3750, Fax: (49) 08152-2658

France: Hamamatsu Photonics France S.A.R.L.: 19, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: 33-(1) 69 53 71 00, Fax: 33-(1) 69 53 71 10

United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: (44) 1707-294888, Fax: (44) 1707-325777

North Europe: Hamamatsu Photonics Norden AB: Smidesvägen 12, SE-171 41 Solna, Sweden, Telephone: (46) 8-509-031-00, Fax: (46) 8-509-031-01

Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: (39) 02-935-81-733, Fax: (39) 02-935-81-741

Information furnished by HAMAMATSU is believ ed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions.

Cat. No. KPIC1048E05

Mar. 2008 DN

Transmitter/receiver photo IC for optical link

L8628-01B, S8627-01B

■ Electrical and optical characteristics (Ta= -40 to +85 °C, Vcc= 4.75 to 5.25 V)

Parameter Symbol Condition Min. Typ. Max. Unit

Current consumption Icc Vin= 2.0 V, Rcont=13.5 kΩ--40mA

Peak emission wavelength λp630 650 670 nm

Spectral half width (FWHM) ∆λ -2030nm

Fiber coupled optical power 1 Po1 Rcont=13.5 kΩ *6, *7-8.5 --2.5 dBm

Fiber coupled optical power 2 Po2 Rcont=27 kΩ *6, *7-11.8 - -5.2 dBm

Extinction ratio re 10 - - dB

Rise time at pulse drive tr 20 to 80 % *6--6.0ns

Fall time at pulse drive tf 80 to 20 % *6- - 6.0 ns

Pulse width variation tpwv 50 % *6, *820.9 - 24.3 ns

Pulse width distortion (average value) tapwd 50 % *6, *8-0.5 -+1.5 ns

*6: Measured with input signals conforming to SP1 MOST specification of physical layer rev. 1.0.

*7: Average value measured with a plastic fiber (φ1 mm, SI-POF, NA=0.5, 1 m) made by Mitsubishi Rayon.

*8: Measured with BiPhase PRBS at 45.2 Mbps (NRZ signal conversion).

NOTE) • A bypass capacitor (0.1 µF) connected between Vcc and GND at a position within 3 mm from the lead, and a 10 µF

capacitor is also connected to the power supply line nearby.

• The optical axis of the package lens is exactly aligned with the center axis of the optical plug, and the gap

between the lens surface and the optical reference plane of the plug is 0.1 mm.

■ Dimensional outlines (unit: mm)

L8628-01B

■ Mode output waveform

KPICC0095EA

■ Output waveform example

tso tos

Voh

Vmh

Vol

INPUT SIGNAL DATA

OPTICAL INPUT NO INPUT SIGNAL

MODE OUTPUT

OUTPUT VOLT A GE OUTPUT DATA

Vml

S8627-01B

2.032.94

5.92

(2 ×) d = 0.8 ± 0.05

7.2 ± 0.2

(INCLUDING BURR)

8.98 ± 0.2

(INCLUDING BURR)

5.9 ± 0.2

(INCLUDING BURR)

(18.0)

5.1

2.54

(4 ×) 0.5 ± 0.05

2.54

(SPECIFIED AT THE LEAD ROOT) (SPECIFIED AT THE LEAD ROOT)

2.54

2.45

3.7 ± 0.05

1.07

a’

1.27

(4 ×) 0.25 ± 0.05

1.50

(2 ×) 10˚

(2 ×) 10˚ 2.85

2.72

1.57

0.97

2.0 DEPTH 0.15 MAX.

0.6

2.92

1.8

1.24

0.2

0.66

(2 ×) 5˚

0.05

+ 0.05

a-a’ CROSS SECTION

0.23

- 0.03

Pin No. S8627-01B

Vcc

GND

MODEOUT

Vout

L8628-01B

GND

Vcc

Cont

2.03 2.94

5.92

(2 ×) d = 0.8 ± 0.05

7.2 ± 0.2

(INCLUDING BURR)

8.98 ± 0.2

(INCLUDING BURR)

5.9 ± 0.2

(INCLUDING BURR)

(18.0)

5.1

2.54

(4 ×) 0.5 ± 0.05

2.54 2.54

2.45

3.7 ± 0.05

1.07

a’

1.27

EMITTING POINT ACTIVE

AREA

Tolerance unless otherwise

noted: ±0.1, ±2˚

R0.3 MAX.

Values in parentheses indicate

reference value.

Lead surface finish: Silver plating

Shaded area indicates burr.

KPICA0046ED

L8628-01B

Vertical axis: 1 V/div., Horizontal axis: 5 ns/div.

(Ta=25 °C, Vcc=5.25 V, Pi= -26 dBm,

RL=50 kΩ, CL=15 pF, 45.2 Mbps)