REAR VIEW
8
7
6
5
4
3
2
1
Figure 2. Pinout.
I/O Pins Configuration Table
Pin
1
2
3
4
5
6
7
8
–
Symbol
LEDA
N.C.
TxD_IrDA
RxD_IrDA
SD
V
CC
TxD_RC
GND
Shield
I/O
I
–
I
O
I
I
I
I
–
Description
IR and Remote Control LED Anode
No Connection
IrDA Transmitter Data Input. Active High
IrDA Receiver Data Output. Active Low
Shutdown. Active High
Supply Voltage
Remote Control Transmission Input.
Active High
Connect to System Ground
EMI Shield
Notes
1
2
3
4
5
6
7
8
9
Notes:
1. Tied through external resistor, R1, to VLED from 2.4 to 4.5 Volts.
2. No Connection.
3. Logic high turns on the IrDA LED. If held HIGH longer than ~50
µs,
the IrDA LED is turned off.
TxD_IrDA must be driven either HIGH or LOW. Do not leave the pin floating.
4. Output is at LOW pulse response when light pulse is seen.
5. Complete shutdown TxD_IrDA, RxD_IrDA, and PIN diode.
6. Regulated, 2.4 to 3.6 Volts.
7. Logic high turns on the RC LED. If held HIGH longer than ~50
µs,
the RC LED is turned off.
TxD_RC must be driven either HIGH or LOW. Do not leave the pin floating.
8. Tie this pin to system ground.
9. Tie to system ground via a low inductance trace. For best performance, do not tie it to the
HSDL-3005 GND pin directly.
Recommended Application Circuit Components
Component
R1
Recommended Value
2.7
Ω ±
5%, 0.25 Watt @ Vled = 2.4 V
3.3
Ω ±
5%, 0.25 Watt @ Vled = 2.7 V
4.7
Ω ±
5%, 0.25 Watt @ Vled = 3.0 V
5.6
Ω ±
5%, 0.25 Watt for 3.0 < Vled < 3.6 V
6.8
Ω ±
5%, 0.25 Watt @ Vled = 3.6 V
10.0
Ω ±
5%, 0.25 Watt for 3.6
≤
Vled
≤
4.5 V
0.47
µF ±
20%, X7R Ceramic
6.8
µF ±
20%, Tantalum
CX1
[1]
CX2
[1]
, CX3
Note:
1. CX1 and CX2 must be placed within 0.7 cm of HSDL-3005 to obtain optimum noise immunity.
3
AVAGO [ AVAGO TECHNOLOGIES LIMITED ]
