HSDL-3002-007 Avago Technologies US Inc., HSDL-3002-007 Datasheet - Page 14

• Manufacturer Part Number: HSDL-3002-007
• Description: Infrared Transceivers 50cm 3V SIR+RC
• Manufacturer: Avago Technologies US Inc.

Specifications of HSDL-3002-007

• Wavelength: 875 nm
• Continual Data Transmission: 115.2 Kbit/s
• Transmission Distance: 50 cm
• Radiant Intensity: 40 mW/sr
• Half Intensity Angle Degrees: 30 deg to 60 deg
• Pulse Width: 1.6 us, 7.5 us
• Maximum Rise Time: 100 ns, 600 ns
• Maximum Fall Time: 100 ns, 600 ns
• Led Supply Voltage: 0 V to 7 V
• Operating Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: - 20 C
• Dimensions: 9.1 mm x 3.65 mm x 2.7 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

14
Appendix B : PCB Layout
Suggestion
The following shows an example
of a PCB layout that would result
in good electrical and EMI perfor-
mance. Things to note:
1. The ground plane should be
2. The shield trace is a wide, low
3. The AGND pin should be con-
4. C1 and C2 are optional supply
5. V
The layout corresponds to the
following application circuit
diagram.
Figure 20. PCB layout suggestion.
SWITCH
continuous under the part, but
should not extend under the
shield trace.
inductance trace back to the
system ground.
nected to the ground plane and
not to the shield tab.
filter capacitors; they may be
left out if a clean power supply
is used.
either unfiltered or unregu-
lated power supply. If V
and V
supply and C1 is used, the
connection should be before
the current limiting resistor
R2. In a noisy environment,
supply rejection can be en-
hanced by including C2 as
well.
DIP
LED
can be connected to
CC
R1
share the same power
Q1
V
CC
LED
RxD
TxD
NC
RC
SD
TRANSMITTER
V
R2
CC
CX2
CX1
GND
Bottom View
Top View
R2 is the current limiting resistor,
while R1 is a weak pull down
resistor for the input of the
switching transistor. Do not float
the input of the switching
MOSFET. The DIP switch is used
to select between driving the
875 nm or 940 nm LED.