PHOTODIODE
GaAs PIN photodiode with preamp
G9842
series
TO-46 package, 0.85 µm, 2.5 Gbps
G9842 series is a family of high-speed receivers specifically developed for 0.85 µm band optical fiber communications. These devices
incorporate a high-speed, high-sensitivity GaAs PIN photodiode integrated with a high-speed preamp, allowing easy connection to a
latter-stage circuit. Lens window types are also available for efficient and easy coupling to an optical fiber.
Features
Applications
l
High-speed response
l
High gain with AGC (Auto Gain Control)
l
Low power supply voltage: 3.3 V
l
Differential output
l
Wide dynamic range: -24 to 0 dBm
l
Optical fiber communications
l
Fiber channel
l
Gigabit Ethernet
s
General ratings / Absolute maximum ratings
Parameter
Window
Active area
Supply voltage
Operating temperature *
1
Storage temperature *
1
*1: No condensation
Symbol
-
-
Vcc
Topr
Tstg
G9842
flat
φ0.08
-0.5 Min., +5.0 Max.
-40 to +85
-40 to +85
G9842-02
lens
Unit
-
mm
V
°C
°C
s
Electrical and optical characteristics
(Typ. Ta=25
°C,
Vcc=3.3 V, Vee=0 V, R
L
=50
Ω
*
2
,
λ=850
nm, unless otherwise noted)
Parameter
Photo sensitivity
Supply current
Output bias voltage
Cut-off frequency
low cut-off frequency
Noise equivalent power
Symbol
S
Icc
Vo
fc
fc-L
NEP
condition
Pin= -20 dBm *
2,
*
3
Dark state, R
L
=∞
Dark state, R
L
=∞
Pin= -20 dBm, -3 dB *
2
Pin= -20 dBm, -3 dB
Dark state
fc-L to 1875 MHz *
2,
*
3
Min.
0.7
-
-
1.7
-
-
-
0
Typ.
1.0
45
3.0
2.1
3.0
440
-24
-
Max.
-
60
-
-
-
710
-22
dBm
-
Unit
V/mW
mA
V
GHz
kHz
nWrms
Minimum receivable
Pmin
2.5 Gbps
sensitivity
PRBS=2
23
-1, BER=10
-10
Maximum receivable
Extinction ratio=10 dB
Pmax
sensitivity
*2: Output: capacitive coupling
*3: Single-ended (Vout+) measurement
1
HAMAMATSU [ HAMAMATSU CORPORATION ]
