ETC AMT128502T46F

AMT128502T46F
1.25 Gb/s Integrated 850 nm MSM-TIA
Advanced Product Information - Rev. 4
FEATURES
• 1.25 Gb/s Differential Output TIA
• Automatic Gain Control
• 850nm Photodetector with
100 µm x 100 µm Active Area
• Integrated MSM detector & TIA
• TO-46 Ultra Flat Window
APPLICATIONS
TO-46F
TO-46F Ultra Flat Window
Package
• Gigabit Ethernet (1.250Gb/s)
• Fibre Channel (1.064 Gb/s)
Electrical Characteristics (TA=25 oC, VDD=+5.0V + 10%)
PARAMETER
MIN
TYP
MAX
UNIT
Wavelength ( λ)
770
850
100 x
100
860
nm
-
µm2
1000
-
-
V/W
1000
-
1500
MHz
Detector Active Area
Small Signal Differential (@ 50 MHz)
Responsivity (1)
Bandwidth(1)
Low Frequency Cutoff
-
(1)
(2)
(3)
-
300
1000
kHz
Output Resistance
25
40
60
Ohm
Optical Overload (2)
0
-
-
dBm
Optical Sensitivity (2)
Differential Output Voltage (3), (4)
-
- 22
700
- 20
-
dBm
mV
(5)
TRISE & TFALL (20 - 80%) (3), (4)
Duty Cycle Distortion (3), (5)
RMS Jitter (3), (5), (6)
-
260
4
15
10
-
ps
%
ps
(6)
Total Jitter (pk-pk) (3), (5), (7)
-
90
-
ps
Supply Current
-
-
50
mA
+ 4.5
+5.0
+5.5
V
0
-
70
°C
Operating Voltage Range
Operating Temperature Range
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(4)
(7)
Measured at –14 dBm
optical input power with
output connected into
RL = 100Ω (differential)
Measured at 10-10 BER with a
27-1 PRBS at 1.25 GB/s
Input optical power =
-3 dBm, RL = 100 Ω
(differential).
Measured with a 625 MHz,
50% duty cycle square wave.
Measured with a 1.25 Gb/s,
27-1 PRBS.
1σ about the center eye
crossing.
6σ about the center eye
crossing.
AMT128502T46F
AMT128503 TO-46 PACKAGE PIN DESCRIPTION
V DD
7.0 V
PIN
+ 5 dBm
TS
Storage Temp. - 65 °C to 150 °C
AMT128503 TO-46 PACKAGE PIN DESCRIPTION
PIN
Description
Comment
1
V OUT - TIA Output Voltage (Non- inverted)
Logical '1' with optical input
2
V DD - Positive Supply Voltage
+ 5 Volts
3
V OUT - TIA Output Voltage (inverted)
Logical '0' with optical input
4
Ground
Case is grounded
V DD
2
4K
OUT
1
3
OUT
AGC
US Patents: 5047728, 5646573
-3 V
Charge
Pump
6.5 GHz
Osc
US Patent Pending
4
Figure 1: AMT128502 Equivalent Circuit
2
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AMT128502T46F
AMT128502T46F Data Sheet Graphs
10mV/Div
200ps/Div
Figure 2: Eye Diagram with Optical Input
Power:–17dBm
Figure 4: Supply Current vs. Temperature
Figure 6: Differential Responsvity
vs Temperature
150mV/Div.
200ps/Div
Figure 3: Eye Diagram with Optical Input
Power:–1.0dBm
Figure 5: Bandwidth vs. Temperature
Figure 7: Sensitivity vs. Temperature
3
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AMT128502T46F
Lightwave
Analyzer
HP 8702D
Laser
Optical Attenuator
DUT Test
Fixture
Power Supply
Figure 8: Test Setup for Frequency Response
BERT
Pulse Pattern
Generator
Laser
Error
Detector
Hybrid
Coupler
Optical
Attenuator
Limiting
Amplifier
25 dB Gain
DUT Test
Fixture
Extinction
Ratio = 9dB
Power
Supply
Figure 9: Test Setup for Sensitivity
4
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AMT128502T46F
VDD
Digital
Communication
Analyzer HP83480A
Pulse Pattern
Generator
0.1uF
DUT Test
Fixture
Optical
Attenuator
Laser
VOUT
Extinction
Ratio = 9dB
DUT
0.1uF
Power
Supply
V OUT
0.1 uF
Figure 11: DUT Test Fixture Schematic
Figure 10: Test Setup for Eye Measurements
Application Schematic
V
DD
0.1uF
2
4K
OUT
1
CF
OUT
3
0.1uF
RO
0.1uF
AGC
LIMITING
AMPLIFIER
Charge
Pump
6.5 GHz
OSC
4
5
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AMT128502T46F
CF is an optional single pole noise filter
CF =
1
2πfcR
fc = desired cutoff frequency
R = 50 Ω
RO is required with high input resistance limiting amplifiers
RO = 100 Ω
Evaluation Board Schematic
V DD
0.1uF
2
4K
OUT
OUT
1
0.1uF
3 0.1uF
VOUT
VOUT
AGC
Charge
Pump
6.5 GHz
OSC
4
6
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AMT128502T46F
Evalutation Board Layout
7
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T046F Package Outline Diagram
ANADIGICS, Inc.
35 Technology Drive
Warren, New Jersey 07059
Tel: (908) 668-5000
Fax: (908) 668-5132
http://www.anadigics.com
[email protected]
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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