hsdl-3203 Avago Technologies, hsdl-3203 Datasheet - Page 3

• Manufacturer Part Number: hsdl-3203
• Description: Small Profile Package Irda Data Compliant Low Power 115.2 Kbit/s Infrared Transceiver - Agilent Hewlett-packard
• Manufacturer: Avago Technologies

I/O Pin Configuration Table
Pin
1
2
3
4
5
6
7
8
–
Notes:
1. Complete shutdown TXD, RXD, and PIN diode.
2. Connect to system ground.
3. Output is active low pulse response when light pulse is seen.
4. Regulated, 2.7 to 3.6 volt.
5. Logic high turns on the LED. If held high longer than 50 s, the LED is turned off
6. Tied through external resistor, R1, to regulate V
7. Connect to system ground via a low inductance trace. For best performance, do not connect
Recommended Application Circuit Components
Component
R1
R1
C1
C2
Notes:
8. To obtain I
9. To obtain I
10. C1 must be placed within 0.7 cm of the HSDL-3203 to obtain optimum noise immunity.
Transceiver I/O Truth Table
Inputs
TXD
High
Low
Low
Don't Care
Notes:
11. In-band IrDA signals and data rates
12. RXD logic low is a pulsed response. The condition is maintained for a duration independent of pattern and strength of the incident intensity.
3
automatically. TXD must be driven either high or low. DO NOT leave the pin floating.
to GND directly at the part.
Caution: The BiCMOS inherent to the design of this component increases the component's susceptibility
to damage from electrostatic discharge (ESD). It is advised that normal static precautions be taken in
handling and assembly of this component to prevent damage and/or degradation, which may be
induced by ESD.
Symbol
CX
SD
AGND
GND
RXD
V
TXD
LED A
Shield
CC
LED
LED
of 50 mA for V
of 250 mA for V
Light Input to Receiver
Don't Care
High
Low
Don't Care
I/O
I
I
I
I
O
I
I
I
–
Recommended Value
30
5.6
6.8 F, 20%, Tantalum
100 nF, 20%, X7R Ceramic
LED
LED
of 3 V.
of 3 V.
1%, 0.125 Watt
1%, 0.125 Watt
Description
Pin bypass capacitor
Shutdown. Active high
Analog ground
Ground
Receiver data output. Active low
Supply voltage
Transmitter data input. Active high
LED anode
EMI shield
115.2 kbit/s.
CC
from 2.7 to 3.6 volt.
SD
Low
Low
Low
High
Note
8
9
10
Outputs
LED
On
Off
Off
Off
Note
1
2
2
3
4
5
6
7
Marking Information
The unit is marked with the
letters "A" and the datacode
"YWW" on the shield for front
options where Y is the last digit
of the year, and WW is the
workweek.
RXD
Not Valid
Low
High
High
Note
11, 12