RGR1551-SC Avago Technologies US Inc., RGR1551-SC Datasheet - Page 2

• Manufacturer Part Number: RGR1551-SC
• Manufacturer: Avago Technologies US Inc.

Specifications of RGR1551-SC

• Optical Fiber Type: RX
• Data Transfer Rate: 155Mbps
• Operating Temperature Classification: Industrial
• Peak Wavelength: 1600nm
• Package Type: DIP With Connector
• 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

Connection Diagram
Top View
Pin 11
PD BIAS
Pin Descriptions
Pins 1, 2, 3, 6, 8, 13, 15, 16 GND:
These pins should be connected to the circuit ground.
Pins 4, 5 CLOCK, CLOCK:
These pins provide complementary differential PECL
CLOCK and CLOCK outputs.
Pins 7, 9, DATA, DATA:
These pins provide complementary differential PECL DATA
and DATA outputs.
The RGR1551 DATA output is non inverting, an optical
pulse causes the DATA output to go to the PECL logic high
state (+4 V nominal).
Pin 10, PD Bias:
This pin must be connec ted to any voltage
between 0 V (GND) and-5 V. This provides the pho-
todiode bias. The current drawn is directly pro-
portional to the average received photocurrent
I = Responsivity x Mean Power. The Responsivity will be
between 0.7 A/W and 1.0 A/W.
2
CLOCK
CLOCK
DATA
DATA
10 µF
GND
GND
GND
GND
GND
1
2
3
4
5
6
7
8
9
10
100 nF
Fiber Pigtail
20
19
18
17
16
15
14
13
12
11
1.0 µH
NC
NC
NC
NC
GND
GND
ALARM
GND
ALARM
+ 5 V
100 nF
+5 V
Pin 11, +5 V:
This pin should be connected to +5 V supply. The network
shown below should be placed as close as possible to Pin
11.
Pins 12,14, ALARM, ALARM:
These pins provide complementary ALARM and ALARM
outputs. This is the low light alarm. ALARM goes to a logic
low (CMOS compatible) state when the optical power drops
below the threshold level (insufficient optical power).
The optical power must increase to a higher level than the
level where the alarm went low before ALARM will return
to a logic high. This difference is the alarm hysteresis.
Pins 17, 18, 19, 20, NC:
These pins are not connected and should be left open
circuit on the application PCB.