12/2003
FEATURES
Differential Output TIA
3.3V Operation
Automatic Gain Control
Integrated 850nm MSM Detector & TIA
TO-46 Ultra Flat-Window or Lens Hermetic
Package
High Reliability
APPLICATIONS
2x Fibre Channel (2.125 Gb/s)
AMT8304
2.125 Gb/s Integrated 850nm MSM-TIA
DATA SHEET - Rev 2.0
T46F
TO-46 Ultra
Flat Window
Package
PRODUCT DESCRIPTION
The ANADIGICS AMT8304 is a 3.3V monolithically
integrated Metal-Semiconductor-Metal (MSM)
photodetector and transimpedance amplifier (TIA)
used to convert an 850nm input optical signal into a
differential output voltage, and is manufactured in
ANADIGICS' 6" GaAs wafer fabrication facility.
The integrated MSM and TIA receiver maximizes
the receiver performance by minimizing the
photodetector input parasitics to the TIA and
internally biasing the photodetector to achieve high
sensitivity, bandwidth and overload performance. As
an integrated product the reliability is inherently
better than a discrete solution, and both the MSM-TIA
integrated circuit and TO-46 flat window and TO-46
lens packaged receiver pass stringent reliability
requirements. These products are readily designed
into receivers and transceivers for 2x Fibre Channel
applications.
Figure 1: Equivalent Circuit
US Patents: 5047728, 5646573
OUT
V
P
IN
1
3
OUT
Charge
Pump
4.5 GHz
Osc
AGC
2
DD
4
T4TL
TO-46 Lens
Package with
Tabbed Header
T46L
TO-46
Lens
Package
2
DATA SHEET - Rev 2.0
12/2003
AMT8304
Table 2: Absolute Maximum Ratings
Table 1: Package PIN Description
Figure 2: T46F/T46L/T4TL Pin Outline (Bottom View)
ELECTRICAL CHARACTERISTICS
Stresses in excess of the absolute ratings may
cause permanent damage. Functional operation
is not implied under these conditions. Exposure
to absolute ratings for extended periods of time
may adversely affect reliability.
N
I
P
N
O
I
T
P
I
R
C
S
E
D
T
N
E
M
M
O
C
1
V
T
U
O
e
g
a
tl
o
V
t
u
p
t
u
O
A
I
T
-
)
d
e
t
r
e
v
n
I
-
n
o
n
(
l
a
c
it
p
o
h
ti
w
'
1
'
l
a
c
i
g
o
L
t
u
p
n
i
2
V
D
D
y
l
p
p
u
S
e
v
it
i
s
o
P
-
e
g
a
tl
o
V
s
tl
o
V
3
.
3
+
3
V
T
U
O
e
g
a
tl
o
V
t
u
p
t
u
O
A
I
T
-
)
d
e
t
r
e
v
n
I
(
l
a
c
it
p
o
h
ti
w
'
0
'
l
a
c
i
g
o
L
t
u
p
n
i
4
d
n
u
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r
G
d
e
d
n
u
o
r
g
s
i
e
s
a
C
V
D
D
V
0
.
6
P
N
I
m
B
d
5
+
T
S
5
6
-
.
p
m
e
T
e
g
a
r
o
t
S
5
2
1
o
t
C
C
DATA SHEET - Rev 2.0
12/2003
3
AMT8304
Table 3: Electrical Characteristics
Notes:
(1) Measured at 14 dBm optical input power with output connected into R
L
= 100
(differential)
(2) Measured at 10
-10
BER with a 2
7
-1 PRBS at 2.125 Gb/s
(3) Measured with a 2
7
-1 PRBS at 2.125 Gb/s, an input optical power of -3dBm
and R
L
= 100
(differential)
(4) 6 about the center eye crossing
R
E
T
E
M
A
R
A
P
N
I
M
P
Y
T
X
A
M
T
I
N
U
(
h
t
g
n
e
l
e
v
a
W
)
0
7
7
0
5
8
0
6
8
m
n
r
e
t
e
m
a
i
D
r
o
t
c
e
t
e
D
-
0
0
1
-
m
l
a
it
n
e
r
e
ff
i
D
l
a
n
g
i
S
ll
a
m
S
y
ti
v
i
s
n
o
p
s
e
R
)
1
(
)
z
H
M
0
5
@
(
0
0
0
1
-
-
W
/
V
h
t
d
i
w
d
n
a
B
)
1
(
0
0
4
1
0
0
9
1
-
z
H
M
ff
o
t
u
C
y
c
n
e
u
q
e
r
F
w
o
L
-
-
0
0
3
z
H
K
e
c
n
a
t
s
i
s
e
R
t
u
p
t
u
O
-
0
4
-
d
a
o
lr
e
v
O
l
a
c
it
p
O
)
2
(
0
-
-
m
B
d
y
ti
v
it
i
s
n
e
S
l
a
c
it
p
O
)
2
(
9
1
-
-
-
m
B
d
e
g
a
tl
o
V
t
u
p
t
u
O
l
a
it
n
e
r
e
ff
i
D
)
3
(
-
0
5
7
-
V
m
T
E
S
I
R
T
d
n
a
L
L
A
F
)
%
0
8
-
0
2
(
)
3
(
-
0
4
1
-
s
p
n
o
it
r
o
t
s
i
D
e
l
c
y
C
y
t
u
D
)
3
(
-
5
-
%
r
e
tt
i
J
l
a
t
o
T
)
4
(
,
)
3
(
-
0
5
-
s
p
t
n
e
r
r
u
C
y
l
p
p
u
S
-
5
3
5
5
A
m
e
g
n
a
R
e
g
a
tl
o
V
g
n
it
a
r
e
p
O
0
.
3
+
3
.
3
+
6
.
3
+
s
tl
o
V
e
g
n
a
R
e
r
u
t
a
r
e
p
m
e
T
e
s
a
C
g
n
it
a
r
e
p
O
0
-
0
8
C
4
DATA SHEET - Rev 2.0
12/2003
AMT8304
Figure 3:
Eye Diagram with an Optical Input Power of 19dBm (with a 4GHz LPF)
Figure 4:
Eye Diagram with an Optical Input Power of 9.0dBm
Figure 5:
Eye Diagram with an Optical Input Power of 0dBm
PERFORMANCE DATA
10mV/Div 100ps/Div
50mV/Div. 100ps/Div
150mV/Div. 100ps/Div
DATA SHEET - Rev 2.0
12/2003
5
AMT8304
Figure 6: Supply Current vs. Temperature
Figure 7: Bandwidth vs. Temperature
Figure 8: Differential Responsivity vs.
Temperature
Figure 9: Sensitivity vs. Temperature
25.0
30.0
35.0
40.0
45.0
50.0
0
10
20
30
40
50
60
70
80
90
Case Temperature (C)
Su
p
p
l
y
C
u
rre
n
t
(m
A)
3V
3.3V
3.6V
1000
1200
1400
1600
1800
2000
2200
2400
0
20
40
60
80
100
Case Temperature (C)
B
andw
idth (
M
H
z
)
3V
3.3V
3.6V
900
1000
1100
1200
1300
1400
1500
0
20
40
60
80
100
Case Temperature (C)
Di
f
f
e
rent
i
a
l
Res
pons
i
v
i
t
y
(V
/
W
)
3V
3.3V
3.6V
-22.0
-21.5
-21.0
-20.5
-20.0
-19.5
-19.0
-18.5
-18.0
0
20
40
60
80
100
Case Temperature (C)
S
ensitivity (
d
B
m
)
3V
3.3V
3.6V
6
DATA SHEET - Rev 2.0
12/2003
AMT8304
Lightwave
Analyzer
HP 8702D
Laser
Optical Attenuator
DUT Test
Fixture
Power
Supply
Extinction
Ratio= 3dB
Figure 1
0: Test Setup for Frequency Response
Laser
Optical
Attenuator
DUT Test
Fixture
Power
Supply
Pulse Pattern
Generator
Limiting
Amplifier
Error
Detector
Hybrid
Coupler
Extinction
Ratio = 9dB
BERT
25 dB Gain
Figure 1
1: Test Setup for Sensitivity
Pulse Pattern
Generator
Laser
Optical
Attenuator
DUT Test
Fixture
Power
Supply
Digital
Communication
Analyzer HP83480A
Extinction
Ratio = 9dB
Figure 1
2: Test Setup for Eye Measurements
MEASUREMENT METHODS
DATA SHEET - Rev 2.0
12/2003
7
AMT8304
Figure 14: Application Schematic
APPLICATION INFORMATION
V
OUT
V
OUT
DUT
V
DD
0.1uF
0.1uF
0.1uF
Figure 13: DUT Test Fixture Schematic
C
F
is an optional single pole noise filter
1
2
f
c
R
f
c
is the desired cutoff frequency
R
= 50
R
O
is required with high input resistance limiting amplifiers
R
O
= 100
C
F
=
V
R
0
Charge
Pump
7.5 GHz
OSC
DD
OUT
OUT
AGC
4
C
F
0.1uF
0.1uF
LIMITING
AMPLIFIER
0.1uF
2
3
1
8
DATA SHEET - Rev 2.0
12/2003
AMT8304
Figure 15: T46F Package Outline Diagram
PACKAGE OUTLINE
DATA SHEET - Rev 2.0
12/2003
9
AMT8304
Figure 16: T46L Package Outline Diagram
10
DATA SHEET - Rev 2.0
12/2003
AMT8304
Figure 17: T4TL Package Outline Diagram
DATA SHEET - Rev 2.0
12/2003
11
AMT8304
NOTES
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.
IMPORTANT NOTICE
ANADIGICS, Inc.
141 Mount Bethel Road
Warren, New Jersey 07059, U.S.A.
Tel: +1 (908) 668-5000
Fax: +1 (908) 668-5132
URL: http://www.anadigics.com
E-mail: Mktg@anadigics.com
ANADIGICS, Inc. reserves the right to make changes to its products or to discontinue any product at any time without
notice. The product specifications contained in Advanced Product Information sheets and Preliminary Data Sheets are
subject to change prior to a product's formal introduction. Information in Data Sheets have been carefully checked and are
assumed to be reliable; however, ANADIGICS assumes no responsibilities for inaccuracies. ANADIGICS strongly urges
customers to verify that the information they are using is current before placing orders.
DATA SHEET - Rev 2.0
12/2003
12
PCS, KPCS CDMA 4mm x 4mm Power Amplifier Modules
ORDERING INFORMATION
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