The R2860G receiver module incorporates a highspeed planar PIN diode and an HBT preamplifier to
provide exceptionally high linearity. The receiver is
designed to provide very clean pulse response at
12.5 Gbits/s that results in high-quality eye patterns
(see Figure 1).
Agere Systems Inc. offers several 1R and 2R highspeed receiver components for 10 Gbits/s and
12.5 Gbits/s applications. APD and PIN versions are
available in a 6-pin hermetic package with coaxial
output. In addition, Agere Systems also offers a PIN
receiver with coplanar waveguide in a multisource
agreement form-factor or a smaller, space sensitive
package. For more information about the complete
Features
■
Linear output up to 0 dBm optical input power
line of high-speed receiver products, please visit the
Agere Systems' website at www.agere.com/opto.
Preliminary Data Sheet, Rev. 2
September 2001
■
High sensitivity, –18 dBm typical
■
High overload, > 2 dBm typical
■
Transimpedance, 500 Ω typic al
■
dc-coupled output
■
Hermetically sealed
Applications
■
12.5 Gbits/s short, intermediate, and long-haul
systems
■
DWDM equipment
■
SONET/SDH equipment
■
Return to zero (RZ) and strong forward-error
correction (FEC) applications
Page 2
Preliminary Data Sheet, Rev. 2
R2860G Digital Receiver OC-192/STM-64September 2001
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess
of those given in the operational sections of the data sheet. Exposure to absolute maximum ratings for extended
periods can adversely affect device reliability.
ParameterSymbolMinMaxUnit
Operating Temperature RangeT
OP
–570°C
Storage Case Temperature RangeTstg–4085°C
Preamp Supply VoltageV
Photodiode Bias VoltageV
Optical Input PowerP
CC
PD
IN
—8.5V
—20V
—4dBm
Electrical/Optical Characteristics
Table 1. Electrical and Optical Characteristics
(25 °C case temperature. Test conditions: 10 Gbits/s, NRZ,
– 1)—02—dBm
Responsivity R0.70.8—A/W
Dark Current I
D
——1.0nA
High-Frequency Cutoff —9.511—GHz
Low-Frequency Cutoff ———30kHz
Group Delay (0.5 GHz—10 GHz)——±20—ps
Transimpedance Z400500600Ω
Av erage Equivalent Input Noise
——1315pA/√Hz
(30 KHz—8 GHz)
RF Output Return Loss*
RL
RF
9——dB
(0.1 GHz—8 GHz)
Optical Return LossRL27——dB
Logic Sense——Noninverting——
Preamp Supply Voltage V
Photodiode Supply Voltage V
Supply Current I
* External dc block required on RF output.
CC
PD
CC
88.28.4V
7812V
—110130mA
2
Agere Systems Inc.
Page 3
Preliminary Data Sheet, Rev. 2
September 2001R2860G Digital Receiver OC-192/STM-64
Pin Information
Table 2. Pin Descriptions
Pin No.Description
1NC
28 V (V
38 V (V
CC
PD
)
)
4NC
5NC
6Ground
Characteristic Curve
Block Diagram
PIN
PHOTODIODE
NC
Figure 1. Eye Pattern at 12.5 Gbits/s
TRANSIMPEDANCE
AMPLIFIER
INOUT
GND
PROTECTION
DIODE
1
8 V
V
2
CC
3
8 V
VPD
4
NC
5
NC
RF OUT
6
GND
1-1173(F)
Agere Systems Inc.
3
Page 4
Preliminary Data Sheet, Rev. 2
R2860G Digital Receiver OC-192/STM-64September 2001
Outline Diagram
Dimensions are in inches and (millimeters).
0.19 ± 0.03
(5.00 ± 0.80)
1 METER MIN.
(2.50)
4X 0.094 (2.40)
0.08 ± 0.03
(2.00 ± 0.80)
0.70 ± 0.03
(18.00 ± 0.80)
0.10
0.15
(3.80)
PIN #1
1.24 (31.50)
1.04 (26.40)
0.84 (21.30)
0.20
(5.10)
0.33 ± 0.03
(8.00 ± 0.80)
5X 0.10
(2.50)
6X 0.02
(0.50)
0.26
(7.00)
0.29
(7.40)
0.20
(5.00)
K-CONNECTOR
0.31
(7.90)
™
0.41
(10.40)
0.58
(14.70)
0.78
(19.80)
0.40
0.17
(4.30)
Note: External dc block required on RF output.
0.225
(5.70)
4
(1.00)
0.174
(4.40)
1-1169(F)b
Agere Systems Inc.
Page 5
Preliminary Data Sheet, Rev. 2
September 2001R2860G Digital Receiver OC-192/STM-64
Ordering Information
Table 3. Ordering Information
1
Device CodeDescriptionConnectorPigtailComcode
R2860G023Digital Receiver
400 Ω min. TIA gain,
dc-coupled output
R2860G040Digital Receiver
400 Ω min. TIA gain,
FC/SPC
SC/UPC
SMF-28
SMF-28
™ or equiva-
lent
(1 m min.)
or equivalent
(1 m min.)
TBD
TBD
dc-coupled output
1. Other options available. For additional ordering information, please contact an Agere Systems account manager at Opto West, 1-800-3623891 (for sales staff, please press option 2).
Agere Systems Inc.
5
Page 6
Preliminary Data Sheet, Rev.1
R2860G Digital Receiver OC-192/STM-64September 2001
K-Connector
SMF-28
For additional information, contact your Agere Systems Account Ma na ger or the following:
INTERNET:
E-MAIL:
N. AMERICA: Agere Systems Inc., 555 Union Boulevard, Room 30L-15P-BA, Allentown, PA 18109-3286
ASIA:Agere Systems Hong Kong Ltd., Suites 3201 & 3210-12, 32/F, Tower 2, The Gateway, Harbour City, Kow loon
EUROPE:
Agere Systems Inc. reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application.