IR 3/16 Encode/Decode IC
Technical Data
HSDL-7001-2500 pc, tape
and reel
HSDL-7001#100-100pc,
50/tube
Features
鈥?Compliant with IrDA 1.0
Physical Layer Specs
鈥?Interfaces with IrDA 1.0
Compliant IR Transceivers
鈥?Used in Conjunction with
Standard 16550 UART
鈥?Transmits/Receives either
1.63
碌
s or 3/16 Pulse Mode
鈥?Internal or External Clock
Modes
鈥?Programmable Baud Rate
鈥?2.7-5.5 V Operation
鈥?16 Pin SOIC Package
Description
The HSDL-7001 modulates and
demodulates electrical pulses
from Hewlett-Packard鈥檚
HSDL-1001 Infrared transceiver
module and other IrDA-compliant
transceivers. The HSDL-7001 can
be used with a microcontroller/
microprocessor that has a serial
communication interface (UART).
Prior to communication, the
processor selects the transmis-
sion baud rate. Serial data is then
transmitted or received at the
prescribed data rate.
The HSDL-7001 consists of two
state machines 鈥?the SIR (Serial
InfraRed) Encode and SIR Decode
blocks. It also contains a
sequential block Clock Divide
which synthesizes the required
internal signal.
The HSDL-7001 can be placed
into the Internal Clock Mode or
External Clock Mode. An external
crystal is needed for the Internal
Clock Mode. In applications
where the external 16XCLK
signal is provided, a crystal is not
needed.
There are two data transmission
modes. Data can be transmitted
and received in either a standard
3/16 modulation mode or a
1.63
碌s
pulse mode.
Schematic
TXD
SIR
ENCODE
IR_TXD
/NRST
RCD
SIR
DECODE
IR_RCV
INT_CLOCK
A0
A1
A2
16XCLK
CLOCK
DIVIDE
Applications
鈥?Interfaces with IR
Transceivers in:
- Computer Applications:
Notebook Computers
Sub-notebooks
Desktop PCs
PDAs
Printers
Dongle or other RS-232
adapter
- Telecom Applications:
Modems
Fax Machines
Pagers
Phones
- Handheld Data Collection:
Industrial
Medical
Transportation
PULSEMOD
CLK_SEL
Pin Out
16XCLK
TXD
RCV
A0
A1
A2
CLK_SEL
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC
OSCIN
OSCOUT
POWERDN
PULSEMOD
IR_TXD
IR_RCV
NRST
1
2
3
4
5
6
7
8
