ETC VSC7809WD

VITESSE
SEMICONDUCTOR CORPORATION
Data Sheet
Photodetector/Transimpedance Amplifier
Family for Optical Communication
VSC7809
Features
• Integrated Photodetector/Transimpedance
Amplifier Optimized for High-Speed Optical
Communications Applications
• Low Input Noise Equivalent Power
• Fibre Channel/Gigabit Ethernet Compatible
• Single 3.3V Power Supply
• Large Optically Active Area
• High Bandwidth
Part Number
Data Rate
Bandwidth
(MHz)
Input Noise
(µW rms)
Optically Active Area
(µm diameter)
VSC7809
1.25Gb/s
800
1.4
100
General Description
The VSC7809 integrated Photodetector/Transimpedance Amplifier provides a highly integrated solution
for converting light from a fiber optic communications channel into a differential output voltage. The benefits
of Vitesse Semiconductor’s Gallium Arsenide H-GaAs process are fully utilized to provide very high bandwidth
and low noise in a product with a large optically active area for easy alignment. The sensitivity, duty cycle distortion and jitter meet or exceed all Fibre Channel and Gigabit Ethernet application requirements. Parts are
available in either die form, flat-windowed packages or in ball-lens packages.
By using a metal-semiconductor-metal (MSM) photodetector with a monolithic integrated transimpedance
amplifier, the input capacitance is lowered which allows for a larger optically active area than in discrete photodetectors. Integration also allows superior tracking over process, temperature and voltage between the photodetector and the amplifier, resulting in higher performance. This part can easily be used in developing Fibre
Channel Electro-Optic Receivers which exhibit very high performance and ease of use.
VSC7809 Block Diagram
Photodetector/Transimpedance Amplifier
+3.3V
DOUTP
DOUTN
GND
Both DOUTP and DOUTN are back-terminated to 25Ω.
G52195-0, Rev 4.0
07/02/01
© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012
Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: [email protected]
Internet: www.vitesse.com
Page 1
VITESSE
SEMICONDUCTOR CORPORATION
Data Sheet
Photodetector/Transimpedance Amplifier
Family for Optical Communication
VSC7809
Table 1: Electro-Optical Specifications(1)
Symbol
Parameter
Min
Typ(2)
Max
Units
Conditions
VSS
Supply Voltage
3.0
3.3
3.6
V
IDD
Supply Current
14
23
40
mA
PSRR
Power Supply Rejection Ratio
-
-10
-
dB
700
840
850
nm
-
1.8
2.5
MHz
-
MHz
-3db, P = -15dBm @ 50MHz
dBm
1.25Gb/s, BER10-12(5)
λ
Wavelength
fC
Low Frequency Cutoff
BW
Optical Modulation Bandwidth
800
1100
S
Sensitivity
-20
-21
RO
Single Ended Output Impedance
20
25
30
Ω
VO
Differential Output Voltage
0.2
0.26
0.4
V
RD
Differential Responsivity
0.8
1.2
-
mV/
µW
Frequencies up to 40MHz
Use external filter to get PSRR
of -35dB(3).
-3db, P(4) = -15dBm @ 50MHz
P = -5dBm,
RLOAD = 100Ω differential
RLOAD = 100Ω
P = -15dBm @ 50MHz
VDC
Output Bias Voltage
1.0
-
-
V
∆VDC
Bias Offset Voltage
-
-
200
mV
NEPO
Input Noise Equivalent Power
-
1
1.4
µW
rms
P = 0mW
VNO
Output Noise Voltage
-
1.0
1.25
mV
rms
P = 0mW
DCD
Duty Cycle Distortion
-
-
4.5
%
P = -5dBm
IOUT
Output Drive Current
2.0
2.6
-
mA
PDJ
Pattern Dependent Jitter
-
35
P = -5dBm
60
ps
P = -5dBm
+/-10% Voltage Window
----
Optically Active Area
-
100
-
µm
Diameter
PPJ
PP Jitter
-
190
250
ps
P = -5 dBm
tR
Rise Time
-
-
400
ps
20%-80% P = -5dBm
tF
Fall Time
-
-
400
ps
20%-80% P = -5dBm
Notes: (1) Specified over 0°C (ambient) to 70°C (case).
(2) Typical conditions 25°C and 3.3V power supply.
(3) See Note 1 in Application Note 48.
(4) P = Incident Optical Power
(5) See Note 2 In Application Note 48.
Page 2
© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012
Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: [email protected]
Internet: www.vitesse.com
G52195-0, Rev 4.0
07/02/01
VITESSE
SEMICONDUCTOR CORPORATION
Data Sheet
Photodetector/Transimpedance Amplifier
Family for Optical Communication
VSC7809
Table 2: Absolute Maximum Ratings
Symbol
Parameter
Limits
VSS
Power Supply
6V Required
TSTG
Storage Temperature
-55°C to 125°C (case temperature under bias)
HSTG
Storage Humidity
5 to 95% R.H. (including condensation)
HOP
Operating Humidity
8 to 80% R.H. (excluding condensation)
PINC
Incident Optical Power
+3dBm
IS
Impact Shock
500 G. Half Sine Wave
Pulse Duration 1 +/-0.5 ms
3 blows in each direction
VIB
Vibration
20 > 2000 > 20Hz, 10 Minutes
10 G. Peak Acceleration
4 Complete Cycles, 3 Perpendicular Axes
VESD
ESD Rating (HBM)
300V
Table 3: Recommended Operating Conditions
Symbol
Parameter
Limits
VSS
Power Supply
3.0VP-3.6V (3.3V nominal)
TOP
Operating Temperature
0°C (ambient) to 70°C (case)
PMAX
Maximum Optical Power
0dBm
G52195-0, Rev 4.0
07/02/01
© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012
Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: [email protected]
Internet: www.vitesse.com
Page 3
VITESSE
SEMICONDUCTOR CORPORATION
Data Sheet
Photodetector/Transimpedance Amplifier
Family for Optical Communication
VSC7809
Table 4: Pin Table Specifications for Ball Lens Packages, Flat Window Packages and Bare Die
Symbol
Description
DOUTP
Data output normal (with reference to incident light)
DOUTN
Data output complement (inverting) (with reference to incident light)
VSS
Power supply
GND
Ground (package case)
NOTE: Pin Diagram is identical for both TO-46 and TO-56 package styles.
Figure 1: Pin Diagram
VSS
DOUTP
DOUTN
GND
Bottom View
Figure 2: Schematic View of Bare Die Pad Assignments
GND
DOUTN
GND
DOUTP
VSS
GND
Page 4
© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012
Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: [email protected]
Internet: www.vitesse.com
G52195-0, Rev 4.0
07/02/01
VITESSE
SEMICONDUCTOR CORPORATION
Data Sheet
Photodetector/Transimpedance Amplifier
Family for Optical Communication
VSC7809
Package Information
Individual Die
(4x) 0.365
φ0.1
(4x) 0.055
(6x) 0.11
DOUTP
(2x) 0.74
GND
VSC7809
(2x) 0.29
0.35
1.48
1.58
VSS
GND
(2x) 0.247
0.05
0.05
(2x) 0.15
DOUTN
GND
1.68
(4x) 0.11
(4x) 0.055
0.42
(2x) 0.1235
(2x) 0.18
0.05
0.835
0.05
0.94
1.04 ± 0.05
G52195-0, Rev 4.0
07/02/01
© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012
Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: [email protected]
Internet: www.vitesse.com
Page 5
VITESSE
SEMICONDUCTOR CORPORATION
Photodetector/Transimpedance Amplifier
Family for Optical Communication
Data Sheet
VSC7809
TO-46 Flat Window Package
Reference Isometric
Page 6
© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012
Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: [email protected]
Internet: www.vitesse.com
G52195-0, Rev 4.0
07/02/01
VITESSE
SEMICONDUCTOR CORPORATION
Data Sheet
Photodetector/Transimpedance Amplifier
Family for Optical Communication
VSC7809
TO-56 Flat Window Package
Reference Isometric
G52195-0, Rev 4.0
07/02/01
© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012
Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: [email protected]
Internet: www.vitesse.com
Page 7
VITESSE
SEMICONDUCTOR CORPORATION
Photodetector/Transimpedance Amplifier
Family for Optical Communication
Data Sheet
VSC7809
TO-46 Ball Lens Package—7mm Lead Length
Reference Isometric
Page 8
© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012
Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: [email protected]
Internet: www.vitesse.com
G52195-0, Rev 4.0
07/02/01
VITESSE
SEMICONDUCTOR CORPORATION
Data Sheet
Photodetector/Transimpedance Amplifier
Family for Optical Communication
VSC7809
TO-46 Ball Lens Package—13mm Lead Length
Reference Isometric
G52195-0, Rev 4.0
07/02/01
© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012
Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: [email protected]
Internet: www.vitesse.com
Page 9
VITESSE
SEMICONDUCTOR CORPORATION
Data Sheet
Photodetector/Transimpedance Amplifier
Family for Optical Communication
VSC7809
Ordering Information
The order number for this product is formed by a combination of the device type and package type.
VSC7809 xx
Device Type
Photodetector/Transimpedance Amplifier
Family for Optical Communication
Package
WA: TO-46 Flat Window
WB: TO-56 Flat Window
WC: TO-46 Ball Lens—7mm Lead Length
WD: TO-46 Ball Lens—13mm Lead Length
X: Bare Dice
Notice
Vitesse Semiconductor Corporation (“Vitesse”) provides this document for informational purposes only. All information in this document, including descriptions of features, functions, performance, technical specifications and availability, is subject to change without notice at any time. Nothing contained in this document shall be construed as extending any warranty or promise, express or implied, that any Vitesse product will be
available as described or will be suitable for or will accomplish any particular task.
Vitesse products are not intended for use in life support appliances, devices or systems. Use of a Vitesse product in such applications without written consent is prohibited
Page 10
© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012
Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: [email protected]
Internet: www.vitesse.com
G52195-0, Rev 4.0
07/02/01