HFBR-0527P Avago Technologies US Inc., HFBR-0527P Datasheet - Page 8

• Manufacturer Part Number: HFBR-0527P
• Description: Fiber Optics, Evaluation Kit
• Manufacturer: Avago Technologies US Inc.

Specifications of HFBR-0527P

• Kit Contents: TX/RX Mods, Cable, Pol Kit, SW, Pwr. Sup
• Tool / Board Applications: Fiber Optic Transceivers
• Mcu Supported Families: HFBR-1527, HFBR-2526
• Main Purpose: Interface, Fiber Optics
• Embedded: No
• Utilized Ic / Part: HFBR-1527, HFBR-2526
• Primary Attributes: 125MBd, Communication up to 25m
• Secondary Attributes: 650nm LED, 1mm POF
• Description/function: Fiber Optic Kit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: HFBR-1527, HFBR-2526
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 516-2143; HFBR-0527P

Figure 7. +5 V ECL Receiver with Through Hole Pin Out
The 125 MBd receiver shown in Figure 7 typically provides a
sensitivity of -28 dBm average modulated when used with
1 mm plastic fibers. The same receiver can be used with
200 µm HCS
of -29 dBm average modulated at a data rate of 125 MBd.
Overload characteristics of the receiver are not influenced
by characteristics of the MC10H116 quantizer. The maxi-
mum power which can be applied to the receiver shown in
Figure 7 is determined by the saturation characteristics of
the transimpedance amplifier used in the HFBR-25X6Z. The
HFBR-25X6Z is guaranteed to provide pulse width distor-
tion which is less than 2 ns when received optical power
is less than -9.4 dBm peak. Many features have been incor-
porated into the receiver recommended in this publication,
but one of the most prominent characteristics of the circuit
shown in Figure 7 is that all of the active and passive com-
ponents needed to build 10,000 fiber optic receivers can be
purchased for about $12.00 per circuit.
Notes:
VBB: Bias supply for device as a Schmitt trigger or served as stable reference voltage
Pin 11: VBB output pin
8
POWER
5
IN
8
+5V
0V
0.47 µF
HFBR-25X6Z
10 µF
C9
TM
C23
4.7 Ω
R13
U3
fibers and will provide a typical sensitivity
+
4
3
2
1
4.7 Ω
0.1 µF
R12
C10
0.1 µF
C22
2.7 µH
2.7 µH
L2
0.1 µF
0.1 µF
L1
C11
C12
V BB
V cc
+
1K Ω
R15
1K Ω
R14
10 µF
C20
10
9
V BB
1
V cc
1/3
V cc
11
0.1 µF
0.1 µF
10 µF
C19
16
C13
C14
10H116
6
U4B
7
51 Ω
+
R16
+3V
+3V
51 Ω
R17
A Complete Fiber Optic Transceiver Solution
Figure 8 shows the schematic for a complete fiber optic
transceiver. This transceiver is constructed on a printed
circuit, which is 1" wide by 1.6" long, using surface mount
components. When the transceiver shown in Figure 8 is
tested at a data rate of 125 MBd, using 100 m of 200 µm
HCS
BER of 1x10
shown in Figure 9 are recommended for use with the trans-
ceiver shown in Figure 8. The artwork for the surface mount
transceiver is shown in Figure 10, and a complete parts list
is shown in Table 1. Designers interested in inexpensive
solutions are encouraged to embed the complete fiber
optic transceiver described in this Application Note into the
next generation of new data communication products.
62 Ω
12 Ω
R21
0.1 µF
R20
C17
10H116
U4A
TM
5
4
fiber, it provides a typical eye opening of 5.4 ns at a
1/3
8
2
3
-9
TL431-CLP
. The power supply filter and ECL terminations
51 Ω
51 Ω
R18
R19
U5
0.1 µF
0.1 µF
C16
C15
0.1 µF
C18
1K Ω
1K Ω
R22
R23
V BB
V BB
13
12
1K Ω
R25
1K Ω
R24
10H116
U4C
1/3
15
14
51 Ω
51 Ω
R27
R26
ECL
ECL