G8339/G8342/G7881/G8796 series are high-speed receivers specifically developed for 1.3/1.55 µm band optical fiber communications.

These devices incorporate a high-speed, high-sensitivity InGaAs PIN photodiode and a high-speed preamp integrated in a receptacle

module. Packages are available with various connectors and mounting styles.

Features

l Wide dynamic range

G8339 series (156 Mbps) : -37 to -5 dBm

G8342 series (622 Mbps) : -32 to -5 dBm

G7881 series (1.25 Gbps) : -25 to -1 dBm

G8796 series (2.5 Gbps) : -22 to +1 dBm

l Integrated with trans-impedance amplifier

l Supply voltage

G8339/G8342 series: 3.3 V

G7881/G8796 series: 3.3 V, 5 V

l Differential output

Applications

l Optical fiber communications

l Fiber channel

l Gigabit Ethernet

l HDTV

l SDH

PHOTODIODE

InGaAs PIN photodiode with preamp

Receptacle type, 1.3/1.55 µm, 156, 622 Mbps/1.25, 2.5 Gbps

G8339/G8342/G7881/G8796 series

s Absolute maximum ratings (Ta=25

°C)

Parameter

Symbol

G8339 series

G8342 series

G7881 series

G8796 series

Unit

Supply voltage

Vcc

-0.3, +3.8

-0.3, +3.8

-0.3, +5.5

-0.5, +6

V

Operating temperature

Topr

-20 to +70

°C

Storage temperature

Tstg

-40 to +85

°C

s Specifications (Typ. Ta=25

°C, Vee=0 V, capacitive coupling, λ=1.31 µm, unless otherwise noted)

G8339 series

G8342 series

G7881 series

G8796 series

Parameter

Symbol

Condition

Vcc=3.3 V

Vcc=3.3 V

Vcc=3.3/5 V

Ω

Vcc=3.3/5 V

Ω

Unit

Photo sensitivity

S

*

27172.8

1.2

V/mW

Supply current

Icc

∞

25

30

35

35

mA

Output bias voltage

Vo

∞

1.5

1.65

Vcc - 1.7Vcc - 0.25

V

Rise time

tr

*

2000

500

250

150

ps

Data rate

B

156 M

622 M

1.25 G

2.5 G

bps

Ω, so they should be used with a load resistance larger than 500 Ω.

*2: Single ended (Vout+) measurement using a single mode optical fiber with a master plug.

*3: G8339/G8342 series: Pin= -30 dBm

G7881 series: Pin= -22 dBm

G8796 series: Pin= -17 dBm

s Package lineup

G8339/G8342/G7881/G8796

Parameter

-21

-22

-23

-32

-44

Mounting style

Board

Panel

Board & panel

Connector

SC

FC

MU

FC

LC

Dimensional outline

➀➁➂

➃➄

1