HSDL-3201-008 查看數據表（PDF） - LiteOn Technology
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HSDL-3201-008 Datasheet PDF : 20 Pages
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Applications
• Mobile telecom
– Cellular phones
– Pagers
– Smart phones
• Data communication
– PDAs
– Portable printers
• Digital imaging
– Digital cameras
– Photo-imaging printers
Application Circuit
VLED
TXD
8 VLED
7 TXD
LED
CURRENT
SOURCE
RXD 6 RXD
SHUT DOWN 5 SD
4 AGND
Description
The HSDL-3201 is one of a new
generation of low-cost Infrared (IR)
transceiver modules from Avago
Technologies. It features the smallest
footprint in the industry at 2.5 H x 8.0
W x 3.0 D mm. Although the supply
voltage can range from 2.7 V to 3.6 V,
the LED drive current is internally
compensated to a constant 32 mA to
assure that link distances meet the
IrDA Data 1.4 (low power) physical
layer specifications.
The HSDL-3201 meets the 20 cm link
distance to other IrDA 1.4 low power
devices, and a 30 cm link distance to
IrDA 1.4 standard devices.
HSDL-3201#021 Pinout,
Rear View
87654321
VCC
C1
1.0 µF
3 VCC
2 NC
RX PULSE
SHAPER
1 GND
I/O Pins Configuration Table
Pin Symbol Description
Notes
1 GND Ground
Connect to system ground.
2 NC
No Connection
This pin must be left unconnected.
3
VCC
Supply Voltage
4 AGND Analog Ground
Regulated: 2.7 to 3.6 Volts
Connect to a “quiet” ground.
5 SD
Shut Down
Active High
This pin must be driven either high or
low. Do NOT float the pin.
6 RXD
Receiver Data
Output is a low pulse for 2.4 µs
Output. Active Low. when a light pulse is seen.
7 TXD
Transmitter Data
Input. Active High.
Logic high turns the LED on. If held
high longer than ~ 20 µs, the LED is
turned off. TXD must be driven high
or low. Do NOT float the pin.
8 VLED LED Voltage
May be unregulated: 2.7 to 6.0 volts.
- SHIELD EMI Shield
Connect to system ground via a low
inductance trace. For best
performance, do not directly connect
to GND or AGND at the part.
HSDL-3201#008 Pinout,
Rear View
87654321
2
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