Features
l High-speed response and high sensitivity
l Flat frequency characteristics
l Compact and lightweight
l Single power supply operation
Applications
l Laser radar
l Spatial light transmission
l Optical rangefinder
M O D U L E
APD module
Detects optical signals at 1 GHz, with high sensitivity
C5658
APD module C5658 is a highly sensitive photodetector consisting of a Si APD (avalanche photodiode), a bias power supply and a low-noise
amplifier, all integrated into a compact case. The APD used has an effective active area of
0.5 mm to allow efficient coupling to a light beam in
applications such as spatial light transmission. The APD internally multiplies the photocurrent to produce an ample gain (set to 100 times for
C5658) and also features high-speed response, achieving detection limits up to 1 GHz wideband and -48 dBm (16 nWr.m.s.) noise level in
combination with the low-noise amplifier. C5658 also incorporates a thermosensor and a temperature-compensated bias power supply necessary
for stable operation of the APD. Highly sensitive optical measurements can be made just by supplying +12 V to C5658.
s
Absolute maximum ratings
Parameter
Condition
Value
Unit
Supply voltage
+13.5
V
Maximum incident light level
Continuous input
10
mW
Operating temperature
0 to +50
°C
Storage temperature
-30 to +80
°C
s
Electrical and optical characteristics (Ta=25 °C, Vcc=12 V, output terminated with 50 )
Parameter
Condition
Typ.
Unit
Spectral response range
400 to 1000
nm
Active area
0.5
mm
Quantum efficiency
=800 nm
70
%
High band
1
GHz
Cut-off frequency (-3 dB)
Low band
1
MHz
Detection sensitivity
=800 nm
2.5 × 10
5
V/W
Gain stability
25 °C ± 10 °C
±5.0
%
Noise level
Dark state
-48
dBm
Output impedance
50
VSWR *
1.5
-
Compression point at 1 dB
3
µW
* VSWR (Voltage Standing Wave Ratio)
If internal matching of elements on a signal transmission line (matching between element input/output impedance and signal line
impedance) is poor, signal reflections occur that generate standing waves on the signal line. The VSWR is the ratio of standing
wave maximum amplitude (V Max.) to minimum amplitude (V Min.) and indicates how well the impedance is internally matched.
When this internal matching is complete, no standing waves exit and the VSWR is 0 (zero).
s
Signal connector
Parameter
Standard
Signal output
SMA
Power supply connector
D-sub 9 pin
s
General specifications
Parameter
Condition
Value
Unit
Supply voltage
+12 ± 0.1
V
Current consumption
100
mA
Dimensional outline
Excluding projecting parts
28 × 50 × 60
mm
Weight
120
g
APD module
C5658
HAMAMATSU PHOTONICS K.K., Solid State Division
1126-1 Ichino-cho, Hamamatsu City, 435-8558 Japan, Telephone: (81) 053-434-3311, Fax: (81) 053-434-5184, http://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.: 8, 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 believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions.
Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. ©2001 Hamamatsu Photonics K.K.
Cat. No. KACC1023E01
Mar. 2001 DN
Mating connector (supplied):
DE-9S (made by JAE) or equivalent
OUTPUT VOLTAGE (mV) 100 mV/div.
TIME 500 ps/div.
500
GND
RELATIVE OUTPUT (dB)
FREQUENCY
100 MHz
1 GHz
5 GHz
+20
-20
0
-40
KACCB0050EA
s
Dimensional outline (unit: mm)
KACCB0051EB
KACCA0092EA
s
Pin connection
Pin No.
Signal
1
+12 V
2
NC
3
GND
4
NC
5
NC
6
NC
7
NC
8
NC
9
NC
s
Pulse response waveform
s
Frequency response
KACCC0134EA
28.0
50.0
PHOTOSENSITIVE
SURFACE
ACTIVE AREA
1.0
60.0
50.0
SIGNAL OUTPUT
CONNECTOR
(SMA)
POWER SUPPLY
CONNECTOR
(D-SUB)
MOUNTING THREADED HOLE
M6 (DEPTH: 6)
4.5
1
2
3
4
6
7
8
9
5
KACCC0135EA
s
Block diagram
50
THERMOSENSOR
SIGNAL OUTPUT
TEMPERATURE-
COMPENSATED
BIAS VOLTAGE
-200 V
GAIN : -100
HIGH BAND: 1 GHz
LOW BAND : 1 MHz
CUT-OFF FREQUENCY
APD
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