RCV1551-FP Avago Technologies US Inc., RCV1551-FP Datasheet - Page 3

• Manufacturer Part Number: RCV1551-FP
• Manufacturer: Avago Technologies US Inc.

Specifications of RCV1551-FP

• Optical Fiber Type: RX
• Operating Temperature Classification: Industrial
• Peak Wavelength: 1600nm
• Operating Supply Voltage (min): 4.75V
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.25V
• Operating Temp Range: -40C to 85C
• Mounting: Through Hole
• Pin Count: 20
• Lead Free Status / RoHS Status: Not Compliant

Functional Description
Design
The receiver contains an InGaAs photodetector, tran-
simpedance amplifier and interface amplifier circuit. It is
designed with a multimode fiber pigtail to allow maximum
flexibility in connector options.
The interface amplifier is capacitively coupled to the pre-
amplifier circuit.
Terminating the Outputs
The data outputs of the RCV1551 are PECL compatible.
Care should be taken to match termination impedances to
the interconnect to minimize reflection effects. Both serial
data outputs (DATA and DATA) should be terminated iden-
tically, even if only one output is used, in order to balance
the drive currents drawn from the module. This will lower
the power supply noise generated by the receiver and
improve performance at low optical input power levels.
Power Supplies
The RCV1551 will operate to specifications with a single
+5 V power supply (Pin 10 Grounded). The -5 V PIN bias is
provided to maintain functional compatibility with second
sources.
Figure 1. Block Diagram
3
(-5 V or Ground)
V neg
Transimpedance
Amplifier
Low Pass Filter
V
GND (0 V)
CC
(+5 V)
Interface
Amplifier
Circuit Layout
The RCV1551 uses very high bandwidth circuitry to
achieve its high level of performance. Care must be taken
to ensure stable operation. The use of ground planes and
transmission line interconnects is required. The use of a
standard evaluation board is highly recommended for
those users who are not familiar with these techniques.
Signal traces should conform to ECL design rules to
prevent reflections and ringing from degrading perfor-
mance. Useful guidelines are contained in ECL manufac-
turer design manuals.
Manufacturing
The fiber pigtail on the device requires normal fiber
handling considerations. Care should be taken to avoid
tight bends as well as excessive tension on the fiber
pigtail.
The allowable temperature range for the RCV1551 is
limited by the material used in the pigtail. Exposure to
temperatures over +85°C is not recommended. Low profile
sockets or hand soldering are recommended for this part.
ALARM
ALARM
DATA
DATA