SRX812XR2H000P4 [OPLINK]
High Sensitivity OC-12/STM-4 APD Receivers;
| 型号： | SRX812XR2H000P4 |
| 厂家： | 
OPLINK COMMUNICATIONS INC. |
| 描述： | High Sensitivity OC-12/STM-4 APD Receivers 光电二极管 |
| 文件： | 总3页 (文件大小：420K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
High Sensitivity OC-12/STM-4 APD
Receivers
SRX12-APD
Product Description
The SRX12-APD is a high sensitivity receiver module designed to ex-
ceed the SONET/SDH optical interface requirements at OC-12/STM-4
(622Mb/s) data rate. Highly reliable InGaAs/InP avalanche photodiode
(APD) is used to cover the entire long wavelength range from 1100nm
to 1600nm.
The receivers feature a low noise GaAs transimpedance IC with AGC ca-
pability to provide an extremely wide dynamic range and high sensitiv-
ity. The APD bias voltage is temperature compensated to ensure stable
operation over the entire operating temperature range. A signal detect
function which indicates loss of optical input is provided. A differential
optical power monitor output is also available.
The SRX12-APD receivers require only a single +5V supply. The data in-
terface signals are differential PECL. The signal detect outputs can have
either PECL or TTL interface.
The SRX12-APD receivers can operate over an operating case tempera-
Features
Exceeds SONET/SDH OC-12/STM-4 Long Reach
Specifications
ture range of 0°C to +70°C (“H”option) or -40°C to +85°C (“I”option). The
module is housed in a 24-pin dual-in-line metal package with a single
mode fiber pigtail, which is terminated with ST, FC or SC connector.
Optical Power Monitor Outputs
-40°C to +85°C Operating Temperature Option
24-pin DIP Metal Package
Related OC-12/STM-4 transmitters & receivers
STX-12: 20-pin laser transmitter
SRX-12: 20-pin receiver without clock recovery (PECL SIGNAL DETECT)
SRX-12-L: 20-pin receiver without clock recovery (TTL SIGNAL DETECT)
SRC-12-S: 24-pin receiver with clock recovery
ST, FC or SC-connectorized Fiber Pigtail
Differential PECL Data Outputs
Differential PECL or TTL Signal Detect Output
Option
Single +5V Power Supply
Absolute Maximum Ratings
Parameter
Symbol
Minimum
Maximum
Units
TST
Storage Temperature
- 40
+ 85
°C
“H”option
“I”option
0
+ 70
+ 85
85
Operating Case Temperature
TOP
°C
- 40
-
VCC
Pin, max
-
Operating & Storage Humidity
Supply Voltage
-
0
-
%
V
+ 6.0
- 5.0
Maximum Input Optical Power
Lead Soldering Temperature & Time
dBm
-
260°C, 10 sec
R3.2008.04.30
Oplink Communications, Inc.
SRX12-APD
Receiver Performance Characteristics (Over Operating Case Temperature, VCC = 4.75 to 5.25V)
All parameters guaranteed only at typical data rate
Parameter
Operating Data Rate 1
Symbol
Minimum
Typical
Maximum
Units
B
-
622
- 40.5
- 40.5
- 3.0
-
-
Mb/s
Temperature Option “I”
Temperature Option “H”
- 37.0
- 38.0
- 8.0
-
-
Receiver Sensitivity
(10-10 BER) 2
Pmin
dBm
dBm
dBm
-
Maximum Input Optical Power (10-10 BER)2
Pmax
Psd+
Psd-
-
-
Increasing Light Input
Decreasing Light Input
- 38.0
Signal Detect
Thresholds
- 55.0
-
-
-
Signal Detect Hysteresis
0.5
-
-
1600
-
dB
nm
Wavelength of Operation
λ
1100
-
Optical Power Monitor Differential Voltage (at 25°C)
VPM
10
mV/µW
1 Data rate ranges from 50Mb/s to 700Mb/s. However, some degradation may be incurred in overall performance.
2 Specified in average optical input power and measured at 1310nm wavelength with 223-1 PRBS at 622Mb/s.
Receiver Electrical Interface (Over Operating Case Temperature, VCC = 4.75 to 5.25V)
Parameter
Symbol
Minimum
Typical
Maximum
Units
Supply Voltage
Supply Current
VCC
ICC
4.75
-
5.0
5.25
180
V
mA
V
120
DATA Output HIGH Voltage 1
VOH
VOL
V
V
V
V
CC - 1.150
-
-
V
V
V
V
CC - 0.880
DATA Output LOW Voltage 1
CC - 1.830
CC - 1.555
V
SIGNAL DETECT HIGH Voltage (PECL option) 1
VOH
VOL
VOH
VOL
VPD
CC - 1.150
CC - 1.830
2.7
-
CC - 0.880
CC - 1.555
VCC
V
V
V
V
V
SIGNAL DETECT LOW Voltage (PECL option) 1
SIGNAL DETECT HIGH Voltage (TTL option)
SIGNAL DETECT LOW Voltage (TTL option)
VPD Output Voltage (maximum current 3mA)
1 With termination of 50Ω to VCC - 2V.
-
-
-
0
0.5
- 90
- 60
- 20
Interface Circuit
Pin Assignments (Top View)
+5V
1
µ
H coil or
ferrite inductor
10
0.01
0.01 10
CASE
N/C
24
23
22
21
20
19
18
17
16
15
14
13
CASE
N/C
1
2
3
4
5
6
7
8
N/C
V
PD OUT
7,18,20
82
82
DATA+
N/C
GND
SIGNAL
DETECT+
16
17
VPM+
VPM-
VCC
510 (Note 1)
510 (Note 1)
8
9
GND
VCC
SIGNAL
DETECT-
VCC
SRX
DATA +
DATA -
N/C
SIGNAL DETECT -
9
SIGNAL DETECT +
DATA -
10
11
12
GND
GND
GND
VPD
OUTPUT
3
GND
GND
4,11,12,13
14,15,19
1,24
130
130
N/C: No internal
connection
Note 1: This resistor is for the PECL option only. It should be omitted for TTL option.
Note 2: Resistor values are in Ω, capacitor values are in µF.
All CASE pins should be grounded
Oplink Communications, Inc.
R3.2008.04.30
2
SRX12-APD
Application Notes
The receiver converts the incident optical power to Both differential DATA+ and DATA outputs (also
a photocurrent via a high performance avalanche SIGNAL DETECT+ and SIGNAL DETECT- if the PECL
photodiode (APD). The photocurrent can be monitored option is chosen) are open emitter PECL levels
via the differential voltage across the two VPM+ and requiring termination (50Ω to VCC - 2V or 510Ω to
VPM- output pins. It is important to note that the GRD is recommended). Both differential outputs
common mode voltage (i.e. DC voltages at PM+ and should be terminated in the same manner, even if
VPM-) is high (-60V typical). The APD bias voltage is only one is used.
APD Bias
Supply
220Ω
VPD
OUT
10kΩ
VPM-
temperature compensated to ensure stable operation
10kΩ
If the TTL option is chosen for the SIGNAL DETECT
VPM+
over the entire operating temperature range. The APD
outputs, no termination resistor should be used.
bias voltage is also available as an output via the VPD
The power supply line should be wellfiltered. The
output. The maximum current that this output can
APD
power supply should be bypassed by 0.01 or 0.1μF
source is 1mA.
ceramic chip placed as close to the receiver module
The signal detect circuit monitors the level of the
as possible.
incoming optical signal and generates a logic LOW signal
when an insufficient photocurrent is produced.
Package Outline
The pigtail length from the
Dimensions in inches [mm]
Default tolerances:
package edge is 1.0 meter typical.
.xxx = ± .005”, .xx = ± .01”
Related Transmitter & Receiver Modules
STX-12
SRX-12
SRX-12-L
SRC-12
: OC-12/STM-4 Transmitter (multi-sourced 20-pin DIP)
: OC-12/STM-4 Receiver without Clock Recovery, ECL SIGNAL DETECT (multi-sourced 20-pin DIP)
: OC-12/STM-4 Receiver without Clock Recovery, TTL SIGNAL DETECT (multi-sourced 20-pin DIP)
: OC-12/STM-4 Receiver with Clock Recovery (multi-sourced 20-pin DIP)
SRC-12-S : OC-12/STM-4 Receiver with Clock Recovery (24-pin DIP, compatible with Sumitomo SDT8712-RD)
Ordering Information
8
1
2
X
R
2
0
0
0
SRX
Type
RX only 5V= 8
Receivers
Temperature Range
-40 ~85˚C= I
0~70˚C= H
Connector Type &
Option
Wavelength Range
Rx 1100-1600nm APD
Pigtail FC, SD-TTL= PA
Pigtail ST, SD-TTL= PB
Pigtail SC, SD-TTL= P5
Pigtail FC, SD-PECL= PC
Pigtail ST, SD-PECL= PD
Pigtail SC, SD-PECL= P4
Oplink Communications, Inc. reserves the right to make changes in equipment design or specifications without notice. Information supplied by Oplink Commu-
nications, Inc. is believed to be accurate and reliable. However, no responsibility is assumed by Oplink Communications, Inc. for its use nor for any infringements
of third parties, which may result from its use. No license is granted by implication or otherwise under any patent right of Oplink Communications, Inc.
© 2008, Oplink Communications, Inc.
R3. 2008.04.30
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