AMT8302 [ANADIGICS]
2.125Gb/s Integrated 850nm MSM-TIA; 2.125Gb / s的集成850nm的MSM- TIA
| 型号： | AMT8302 |
| 厂家： | 
ANADIGICS, INC |
| 描述： | 2.125Gb/s Integrated 850nm MSM-TIA |
| 文件： | 总8页 (文件大小：261K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AMT8302
2.125 Gb/s Integrated 850nm MSM-TIA
Preliminary Data Sheet - Rev 0
FEATURES
·
·
·
·
·
Differential Output TIA
3.3V Operation
Automatic Gain Control
Integrated 850nm MSM Detector & TIA
TO-56 Ultra Flat-Window Hermetic
Package
·
High Reliability
APPLICATIONS
2x Fibre Channel (2.125 Gb/s)
·
T56F
TO-56 Ultra Flat Window Package
Product Description
The ANADIGICS AMT8302 is a 3.3V monolithically internally biasing the photodetector to achieve high
integrated Metal-Semiconductor-Metal (MSM) sensitivity, bandwidth and overload performance. As
photodetector and transimpedance amplifier (TIA) an integrated product the reliability is inherently
used to convert an 850nm input optical signal into a better than a discrete solution, and both the MSM-TIA
differential output voltage, and is manufactured in integrated circuit and TO56 flat window packaged
ANADIGICS 6 GaAs wafer fabrication facility. The receiver pass stringent reliability requirements.
integrated MSM and TIA receiver maximizes the These products are readily designed into
receiver performance by minimizing the receiversand transceivers for 2X Fibre Channel
photodetector input parasitics to the TIA and
applications.
Figure 1: AMT8302 Equivalent Circuit
VDD
1
OUT
4
2
OUT
AGC
US Patents: 5047728, 5646573
PIN
Charge
Pump
7.5 GHz
Osc
3
AMT8302
Table 1: Absolute Maximum Ratings
VDD
6.0V
+5dBm
PIN
TS
Storage Temp. - 65 °C to 125 °C
Table 2: Electrical Characteristics
PARAMETER
MIN
770
-
TYP
850
100
-
MAX
UNIT
nm
Wavelength ( )
860
l
Detector Diameter
-
µm
Small Signal Differential Responsivity (1) (@ 50 MHz)
Bandwidth(1)
1000
-
V/W
MHz
kHz
1400
1900
-
-
Low Frequency Cutoff
-
300
Output Resistance
-
40
-
-
W
dBm
dBm
mV
ps
(2)
Optical Overload
0
-
Optical Sensitivity (2)
-19
-
-
(3)
Differential Output Voltage
-
750
140
5
-
-
TRISE and TFALL (20-80%) (3)
Duty Cycle Distortion (3)
Total Jitter (3), (4)
-
-
-
%
-
50
35
+3.3
-
-
ps
Supply Current
-
+ 3.0
0
55
+3.6
80
mA
Volts
°C
Operating Voltage Range
Operating Case Temperature Range
(1) Measured at 14 dBm optical input power with output connected into RL = 100W (differential)
(2) Measured at 10-10 BER with a 27-1 PRBS at 2.125 Gb/s
(3) Measured with a 27-1 PRBS at 2.125 Gb/s, an input optical power of -3dBm and
RL = 100 W (differential)
(4)
6
about the center eye crossing
s
Table 3: Package PIN Description
Pin
1
Description
VDD - Positive Supply Voltage
OUT - TIA Output Voltage (Inverted)
Ground
OUT - TIA Output Voltage (Non-Inverted)
Comment
+3.3 Volts
2
V
Logical '0' with optical input
Case is grounded
3
4
V
Logical '1' with optical input
Preliminary Data Sheet - Revision 0
03/01
2
AMT8302
Figure 2: Eye Diagram with an Optical Input Power of -18dBm
10mV/Div
100ps/Div
Figure 3: Eye Diagram with an Optical Input Power of -8.0dBm
60mV/Div.
100ps/Div
Figure 4: Eye Diagram with an Optical Input Power of 0dBm
150mV/Div.
100ps/Div
Preliminary Data Sheet - Revision 0
03/01
3
AMT8302
Figure 5: Supply Current vs. Temperature
Figure 6: Bandwidth vs. Temperature
50.0
45.0
40.0
35.0
30.0
25.0
2400
2200
2000
1800
1600
1400
1200
1000
3V
3V
3.3V
3.6V
3.3V
3.6V
0
20
40
60
80
100
0
20
40
60
80
100
Case Temperature (C)
Case Temperature (C)
Figure 7: Differential Responsivity vs.
Temperature
Figure 8: Sensitivity vs. Temperature
-18.00
-18.50
-19.00
-19.50
-20.00
-20.50
-21.00
-21.50
-22.00
1500
1400
1300
1200
1100
1000
900
3V
3V
3.3V
3.6V
3.3V
3.6V
0
20
40
60
80
100
0
20
40
60
80
100
Case Temperature (C)
Case Temperature (C)
Preliminary Data Sheet - Revision 0
03/01
4
AMT8302
Figure 9: Test Setup for Frequency Response
Lightwave
Analyzer
HP 8702D
DUT Test
Fixture
Optical Attenuator
Laser
Power
Supply
Extinction
Ratio= 3dB
Figure 10: Test Setup for Sensitivity
BERT
Pulse Pattern
Generator
Error
Detector
Hybrid
Coupler
Limiting
Amplifier
25 dB Gain
Optical
Attenuator
DUT Test
Fixture
Laser
Extinction
Ratio = 9dB
Power
Supply
Figure 11: Test Setup for Eye Measurements
Digital
Communication
Analyzer HP83480A
Pulse Pattern
Generator
DUT Test
Fixture
Optical
Attenuator
Laser
Extinction
Ratio = 9dB
Power
Supply
Preliminary Data Sheet - Revision 0
03/01
5
AMT8302
Figure 12: DUT Test Fixture Schematic
VDD
0.1uF
VOUT
DUT
VOUT
0.1uF
0.1
uF
Figure 13: Application Schematic
V
DD
0.1uF
1
OUT
OUT
0.1uF
4
RO
CF
2
0.1uF
LIMITING
AGC
AMPLIFIER
Charge
Pump
7.5 GHz
OSC
3
CF is an optional single pole noise filter
1
CF
=
π
2 fcR
fc is the desired cutoff frequency
R = 50 W
RO is required with high input resistance limiting amplifiers
RO = 100 W
Preliminary Data Sheet - Revision 0
03/01
6
AMT8302
Figure14: T56F Package Outline Design
Preliminary Data Sheet - Revision 0
03/01
7
AMT8302
Ordering Information
Part Number
Package Option
Package Description
Ultra Flat Window Package
AMT8302T56F
TO-56F
ANADIGICS, Inc.
141 Mount Bethel Road
Warren, New Jersey 07059, U.S.A
Tel: +1 (908) 668-5000
Fax: +1 (908) 668-5132
http://www.anadigics.com
Mktg@anadigics.com
IMPORTANT NOTICE
ANADIGICS, Inc. reserves the right to make changes to its products or discontinue any product at any time without notice.
The Advanced Product data sheets and product specifications contained in this data sheet are subject to change prior to
a products formal introduction. The information in this data sheet has been carefully checked and is assumed to be reliable.
However, ANADIGICS assumes no responsibility for inaccuracies. ANADIGICS strongly urges customers to verify that the
information they are using is current before placing orders.
WARNING
ANADIGICS products are not intended for use in life support appliances, devices, or systems. Use of an ANADIGICS
product in any such application without written consent is prohibited.
8
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