ASDL-3212-021 Avago Technologies US Inc., ASDL-3212-021 Datasheet - Page 3
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ASDL-3212-021
Manufacturer Part Number
ASDL-3212-021
Description
Infrared Transceivers SFF MIR Front w/o Shield
Manufacturer
Avago Technologies US Inc.
Datasheet
1.ASDL-3212-021.pdf
(17 pages)
Specifications of ASDL-3212-021
Wavelength
870 nm, 875 nm
Continual Data Transmission
1.152 Mbit/s
Transmission Distance
50 cm
Radiant Intensity
80 mW/sr
Half Intensity Angle Degrees
15 deg
Pulse Width
1.5 us, 1.6 us
Maximum Rise Time
60 ns, 600 ns
Maximum Fall Time
60 ns, 600 ns
Led Supply Voltage
0 V to 6 V
Maximum Forward Current
60 mA
Operating Voltage
2.4 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 25 C
Dimensions
7 mm x 2.73 mm x 1.64 mm
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Recommended Application Circuit Components
Note:
7. CX1 & CX2 must be placed within 0.7cm of ASDL-3212 to obtain
I/O Pins Con guration Table
Note:
1. Tied through external resistor, R1, to Vled. Refer to the table below for recommended series resistor value.
2. This pin is used to transmit serial data when SD pin is low. If held high for longer than 50 Ps, the LED is turned o . Do NOT oat this pin.
3. 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
4. Complete shutdown of IC and PIN diode. Do NOT oat this pin.
5. Regulated, 2.4V to 3.6V
6. Connect to system ground.
3
R1
CX2
CX1, CX3
Pin
1
2
3
4
5
6
optimum noise immunity
transceiver is in shutdown mode
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
LEDA
TxD
RxD
SD
Vcc
GND
Recommended Value
2.7Ω ± 5%,0.25 watt for 2.4 ≤ VLED < 2.6
3.3Ω ± 5%,0.25 watt for 2.6 ≤ VLED < 2.8
3.9Ω ± 5%,0.25 watt for 2.8 ≤ VLED < 3.0
4.7Ω ± 5%,0.25 watt for 3.0 ≤ VLED < 3.3
5.6Ω ± 5%,0.25 watt for 3.3 ≤ VLED < 3.5
6.8Ω ± 5%,0.25 watt for 3.5 ≤ VLED < 3.8
8.2Ω ± 5%,0.25 watt for 3.8 ≤ VLED < 4.2
10Ω ± 5%,0.25 watt for 4.2 ≤ VLED < 4.7
12Ω ± 5%,0.25 watt for 4.7 ≤ VLED < 5.0
100 nF, ± 20%, X7R Ceramic
6.8 PF, ± 20%, Tantalum
Description
LED Anode
IrDA transmitter data input.
IrDA receive data
Shutdown
Supply Voltage
Ground
I/O Type
Input, Active High
Output, Active Low
Input, Active High
Note
7
7
Notes
Note 1
Note 2
Note 3
Note 4
Note 5
Note 6
Figure 2. Pin out
6
5
Rear View
4
3
2
1