SRC848XR1I000P3 [OPLINK]
Receiver with Clock Recovery;型号: | SRC848XR1I000P3 |
厂家: | OPLINK COMMUNICATIONS INC. |
描述: | Receiver with Clock Recovery |
文件: | 总4页 (文件大小:762K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
OC-48/STM-16 Receiver with Clock
Recovery
SRC48
Product Description
The SRC48 modules are receivers with internal clock recovery designed
to meet or exceed the SONET/SDH optical interface requirements at OC-
48/STM-16 (2.488 Gb/s) data rate. Three performance versions are avail-
able which are fully compliant with Short Reach, Intermediate Reach
and Long Reach specifications at 1300 nm and 1550 nm wavelength.
The receiver for the Short Reach and Intermediate Reach version uses
PIN photodiodes. For the Long Reach version, InGaAs avalanche photo-
diodes (APDs) are used to achieve high sensitivity. The Long Reach re-
ceiver features a low noise GaAs transimpedance IC with AGC capability
to provide an extremely wide dynamic range. A Phase Lock Loop (PLL)
circuit is included to perform the clock recovery function and resam-
pling of the data. Both DATA and CLOCK outputs are differential signals
designed to be AC-coupled into 50 ohm load. A TTL Signal Detect func-
tion which indicates loss of optical input and an analog Received Opti-
cal Power Monitor output ares also provided.
Features
Fully compliant with SONET/SDH OC-48/STM-16
(2.5 Gb/s) specifications
All receiver modules can be operated with a single +5V supply. The op-
erating temperature range is -40°C to +85°C for the Short Reach and
Intermediate Reach version and 0°C to +70°C for the Long Reach ver-
sion. All receivers are housed in a 24-pin dual-in-line metal package
with fiber pigtail (single mode fiber for Long Reach version and 50/125
μm multimode fiber for Short Reach and Intermediate Reach versions).
The fiber pigtail is terminated with ST, FC or SC connector.
Long Reach 1310 nm & 1550 nm as well as
Intermediate Reach and Short Reach
Internal temperature-compensated High
Voltage APD Supply (Long Reach version)
-40°C to +85°C Operating Temperature
(Intermediate Reach and Short Reach)
24-pin DIP metal package
FC, ST, SC-connectorized fiber pigtails
Differential DATA & CLOCK interface
TTL SIGNAL DETECT output
Received Optical Power Monitor function
Single +5 V supply
Absolute Maximum Ratings
Parameter
Symbol
Minimum
Maximum
Units
TST
Storage Temperature
- 40
+ 85
°C
“I”option (“SR”& “IR”only)
“H”option
- 40
+ 85
+ 70
- 5.0
+ 6.0
VCC
Operating Case Temperature
TOP
°C
0
-
Pin, max
VCC
VIN
-
Maximum Optical Input Power (“LR”only)
Supply Voltage
dBm
V
0
0
-
Input Voltage
V
Lead Soldering Temperature & Time
260°C, 10 sec
R3.2009.04.30
An Oplink Company
SRC48
(Over Operating Case Temperature.)
Receiver Performance Characteristics
Parameter
Symbol
Minimum
Typical
Maximum
Units
2.48832
- 500 ppm
2.48832
+ 500 ppm
Data Rate
B
2.48832
Gb/s
Short & Intermediate Reach
Long Reach
- 20.0
- 28.0
- 3.0
0
- 24.0
-
Receiver Sensitivity
(10-10 BER) 1
Pmin
dBm
dBm
dBm
- 31.0
-
Short Reach (SR)
- 1.0
-
Maximum Input Optical
Power (10-10 BER)1
Intermediate Reach (IR)
Long Reach (LR)
Pmax
2.0
-
- 8.0
-
-
- 6.0
Increasing Light Input
SR & IR
Psd+
Psd-
Psd+
Psd-
-
-
- 20.0
Decreasing Light Input
- 35.0
-
-
-
-
Signal Detect Thresholds
Signal Detect Hysteresis
Increasing Light Input
LR
- 28.0
dBm
dB
Decreasing Light Input
- 42.0
0.5
-
-
-
1.0
6
-
-
LR (Pin from -28 dBm to -17 dBm)
IR & SR (Pin from -20 dBm to 0 dBm)
Optical Power
Monitor Current
IPM
µA/µW
-
0.8
-
-
Wavelength of Operation
Clock Sampling Point
Output Clock Jitter
λ
1100
150
-
1600
250
0.01
nm
ps
TCSP
CLKJ
200
-
UIrms
Jitter Tolerance & Transfer Function
compliant with ITU Recommendation G.958
1 Specified in Average Optical Input Power and measured at 2.48832 Gb/s and 1300 nm or 1550 nm wavelength with 223-1 PRBS.
Receiver Electrical Interface
Parameter
Symbol
Minimum
Typical
Maximum
Units
Supply Voltage
Supply Current
VCCA’ VCCD
4.75
-
5.0
425
465
0.75
0.45
-
5.25
525
V
SR & IR
I
mA
V
LR
-
565
DATA
CLOCK
0.4
0.35
2.7
0
0.95
0.95
VCCD
0.50
1
Output Voltage Swing
VPP
Output HIGH Voltage (SIGNAL DETECT)
Output LOW Voltage (SIGNAL DETECT)
VOH
VOL
V
V
-
1
AC-coupled into 50 ohm load
Interface Circuit
1 µH coil or ferrite bead
(<0.1 ohm series resistance)
50 ohm line
DATA+
to 50 ohm load
6
5
0.022
0.022
+5V
23,24
+
+
10
100
0.01
50 ohm line
DATA-
to 50 ohm load
13,14
15,16
+
100
0.01
50 ohm line
50 ohm line
CLK+
to 50 ohm load
10
0.001
0.001
SRC-48
NO CONNECTION
3 Kohm
1
CLK-
to 50 ohm load
9
+5V
3
+
10
0.01
SD+
21
22
2,4,7,8,11,12
17,18,19,20
SD -
Oplink Communications, Inc.
R3.2009.04.30
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SRC48
Application Notes
The receiver converts the incident optical power to a entire operating temperature range.
photocurrent via a high performance P-I-N photodiode (Short
Both DATA and CLOCK outputs are differential signals designed
to be AC-coupled into 50 ohm load. Transmission lines are
recommended for best performance. The Signal Detect
circuit monitors the level of the incoming optical signal and
generates a logic LOW signal at the SIGNAL DETECT+ output
when insufficient photocurrent is produced. No termination
resistor is required for the SIGNAL DETECT outputs.
and Intermediate Reach version) or an avalanche photodiode
(Long Reach version).The photocurrent can be monitored via
thevoltagedropacrossanexternalresistorconnectedbetween
PM and VCC. The APD Bias Voltage is internally generated from
the +5 V supply by a low noise DC-DC converter. The APD
Bias Voltage is temperature compensated to ensure stable
operation over the entire operating temperature range.the
Optical Power Monitor Interface Circuit
Timing Diagram
V
CC
External
Monitor Resistor
(about 3 Kohm)
TCSP
DATA
PM (Pin 3)
APD/PIN
Current
Monitor
CLOCK
SRC-48
Typical Jitter Transfer Function
Typical DATA output Eye Pattern
Typical Jitter Tolerance Measurement
Oplink Communications, Inc.
R3.2009.04.30
3
SRC48
Package Outline
(Dimension in inches)
The pigtail length from the package
edge is 1.0 meter typical.
Pinout Assignments
PIN
1
FUNCTION
N/C (NO CONNECTION)
GND
PIN
24
23
22
21
20
19
18
17
16
15
14
13
FUNCTION
Related TX, RX &
VCCA (VCC ANALOG)
VCCA (VCC ANALOG)
SD - (SIGNAL DETECT -)
SD + (SIGNAL DETECT +)
GND
Transceiver Modules
2
STX-48: OC-48/STM-16 Transmiꢀer (24-pin DIP)
SRX-48: OC-48/STM-16 Receiver without Clock
Recovery (24-pin DIP)
DTR-2488-SM: OC-48/STM-16 Transceiver without
Clock Recovery (industry standard 1x9 package)
DTR-2488-SM2: OC-48/STM-16 Transceiver without
Clock Recovery (industry standard 2x9 package)
3
PM (optical Power Monitor)
GND
4
5
DATA OUTPUT -
DATA OUTPUT +
GND
6
GND
7
GND
8
GND
GND
DTC-48: OC-48/STM-16 Transceiver with Clock
Recovery (industry standard 2x9 package)
9
CLK - (CLOCK OUTPUT -)
CLK - (CLOCK OUTPUT +)
GND
VCCD (VCC DIGITAL)
VCCD (VCC DIGITAL)
VCCD (VCC DIGITAL)
VCCD (VCC DIGITAL)
10
11
12
GND
Ordering Information
8
4
8
X
0
0
0
SRC
Supply Voltage
Receivers
Wavelength
Temperature Range
Option
5V= 8
1100~1600nm PIN= R1
1100~1600nm APD= R2
-40 ~85˚C= I
0~70˚C= H
Pigtail FC= P1
Pigtail ST= P2
Pigtail SC= P3
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.
R3.2009.04.30
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