hsdl-3003 ETC-unknow, hsdl-3003 Datasheet - Page 4

• Manufacturer Part Number: hsdl-3003
• Description: Irda Data Compliant Power 115.2 Kbit/s With Remote Control Infrared Transceiver
• Manufacturer: ETC-unknow

Different Remote Control
Configurations for HSDL-3003
The HSDL-3003 can operate in
the single-TXD programmable
mode or the two-TXD direct
transmission mode.
Single-TXD Programmable Mode
In the single-TXD programmable
mode, only one input pin
(TxD_IrDA input pin) is used to
Figure 2.
Two-TXD Direct Transmission Mode
In the two-TXD direct
transmission mode, the 875 nm
LED and the 940 nm LEDs are
turned on separately by two
different input pins. The
TxD_IrDA input pin is used to
turn on the 875 nm LED while
the TxD_RC input pin is used to
turn on the 940 nm LEDs.
Please refer to the Transceiver
I/O truth table for more details.
(ACTIVE HIGH)
(ACTIVE HIGH)
4
SHUTDOWN
TxD_IrDA
TxD_RC
(GND)
SHUTDOWN
t
TL
IrDA LED
DRIVE
• • •
MODE
RC
tA
turn on either the 875 nm LED or
the 940 nm LEDs while the
TxD_RC input pin is grounded.
The transceiver is in default mode
(IrDA) when powered up. User
needs to apply the following
programming sequence to both
the TxD_IrDA and SD inputs to
enable the transceiver to operate
in either the IrDA or remote
control mode.
Transceiver Control I/O Truth Table for Two-TXD Direct Transmission Mode
SD
0
0
0
0
1
* The shutdown condition will set the transceiver to the default mode (IrDA).
tC
tB
TXD_IrDA
0
0
1
1
0
RC LED
DRIVE
• • •
TXD_RC
0
1
0
1
0
RESET
tC
IrDA LED
OFF
OFF
ON
DIM
OFF
IrDA LED
DRIVE
• • •
RC LEDs
OFF
ON
OFF
ON
OFF
Remarks
IR Rx enabled. Idle mode
Remote control operation
IrDA Tx operation
Not recommended
Shutdown mode*