HSDL-3220 View Datasheet(PDF) - LiteOn Technology
Part Name
Description
MFG CO.
HSDL-3220 Datasheet PDF : 18 Pages
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Application Support Information
The Application Engineering Group is available to as-
sist you with the application design associated with the
HSDL-3220 infrared transceiver module. You can con-
tact them through your local sales representatives for
additional details.
Marking Information
The unit is marked with ‘yyww’ on the shield:
yy = year
ww = work week
Order Information
Part Number
HSDL-3220-021
Packaging Type
Tape and Reel
Package
Quantity
Front View
2500
I/O Pins Configuration Table
Pin
Symbol
1
2
3
4
5
6
7
8
-
LED A
LED C
TXD
RXD
SD
Vcc
IOVcc
GND
Shield
Description
I/O Type
LED Anode
I
LED Cathode
Transmit Data. Active High. I
Receive Data. Active Low.
O
Shutdown. Active High.
I
Supply Voltage
Input/Output ASIC Vcc
Ground
EMI Shield
Notes
1
2
3
4
5
6
7
8
9
Recommended Application Circuit Components
Component Recommended Value
Notes
R1
CX1, CX4
CX2, CX3
5.6Ω ± 5%, 0.25 watt for 2.7 ≤ Vled< 3.3V
10Ω ± 5%, 0.25 watt for 3.3 ≤ Vled<4.2V
15Ω ± 5%, 0.25 watt for 4.2 ≤Vled< 5.5V
0.47 µF ± 20%, X7R Ceramic
10
6.8 µF ± 20%, Tantalum
11
Notes:
1. Tied through external series resistor, R1, to regulated Vled from 2.7 to 5.5V. Please refer to table above for recommended series resistor value.
2. Internally connected to LED driver. Leave this pin unconnected.
3. This pin is used to transmit serial data when SD pin is low. If this pin is held high for longer than 50 µs, the LED is turned off. Do NOT float this
pin.
4. This pin is capable of driving a standard CMOS or TTL load. No external pull-up or pull-down resistor is required. The pin is in tri-state when
the transceiver is in shutdown mode. The receiver output echoes transmitted signal.
5. The transceiver is in shutdown mode if this pin is high for more than 400 µs. On falling edge of this signal, the state of the TXD pin sampled
and used to set receiver low bandwidth (TXD=low) or high bandwidth (TXD=high) mode. Refer to the section ”Bandwidth selection timing”
for programming information. Do NOT float this pin.
6. Regulated, 2.7 to 3.6 Volts.
7. Connect to ASIC logic controller Vcc voltage or supply voltage. The voltage at this pin must be equal to or less than supply voltage.
8. Connect to system ground.
9. Connect to system ground via a low inductance trace. For best performance, do not connect directly to the transceiver pin GND.
10. CX1 must be placed within 0.7 cm of the HSDL-3220 to obtain optimum noise immunity.
11. In environments with noisy power supplies, including CX2, as shown in Figure 1, can enhance supply ripple rejection performance.
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