HSDL7001 HP [Agilent(Hewlett-Packard)], HSDL7001 Datasheet

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HSDL7001

Manufacturer Part Number
HSDL7001
Description
IR 3/16 Encode/Decode IC
Manufacturer
HP [Agilent(Hewlett-Packard)]
Datasheet

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IR 3/16 Encode/Decode IC
Technical Data
Features
• Compliant with IrDA 1.0
• Interfaces with IrDA 1.0
• Used in Conjunction with
• Transmits/Receives either
• Internal or External Clock
• Programmable Baud Rate
• 2.7-5.5 V Operation
• 16 Pin SOIC Package
Applications
• Interfaces with IR
Physical Layer Specs
Compliant IR Transceivers
Standard 16550 UART
1.63 s or 3/16 Pulse Mode
Modes
Transceivers in:
- Computer Applications:
- Telecom Applications:
- Handheld Data Collection:
Notebook Computers
Sub-notebooks
Desktop PCs
PDAs
Printers
Dongle or other RS-232
Modems
Fax Machines
Pagers
Phones
Industrial
Medical
Transportation
adapter
Description
The HSDL-7001 modulates and
demodulates electrical pulses
from Hewlett-Packard’s
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 – 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 s pulse mode.
CLK_SEL
HSDL-7001-2500 pc, tape
HSDL-7001#100-100pc,
Schematic
PULSEMOD
Pin Out
16XCLK
CLK_SEL
and reel
50/tube
16XCLK
GND
RCV
TXD
/NRST
A0
A1
A2
TXD
RCD
A0
A1
A2
1
2
3
4
5
6
7
8
ENCODE
DECODE
CLOCK
DIVIDE
SIR
SIR
16
15
14
13
12
11
10
9
V
OSCIN
OSCOUT
POWERDN
PULSEMOD
IR_TXD
IR_RCV
NRST
CC
INT_CLOCK
IR_TXD
IR_RCV

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HSDL7001 Summary of contents

Page 1

IR 3/16 Encode/Decode IC Technical Data Features • Compliant with IrDA 1.0 Physical Layer Specs • Interfaces with IrDA 1.0 Compliant IR Transceivers • Used in Conjunction with Standard 16550 UART • Transmits/Receives either 1. 3/16 Pulse Mode ...

Page 2

I/O Pinout List Pin Name Type 1 16XCLK DIGIN (SIXTNCK) 2 /TXD DIGIN 3 RCV DIGOUT 4 A0 DIGIN 5 A1 DIGIN 6 A2 DIGIN 7 CLK_SEL DIGIN 8 GND 9 /NRST DIGIN 10 /IR_RCV DIGIN 11 IR_TXD DIGOUT 12 ...

Page 3

Table 1. Selection of Internal Clock Rate from Crystal Oscillator Selected Clock Rate (bps) 115200 57600 19200 9600 38400 4800 2400 TEST PURPOSE Package Dimensions –T– PL. 0.25 (0.010 ...

Page 4

Encoding Scheme 16 CYCLES 16 CYCLES 16XCLK TXD 7 CS IRTXD 3 CS The encoding scheme relies on a clock being present, which is set to 16 times the data transmission baud rate (16XCLX). The encoder sends a pulse for ...

Page 5

Monoshot Operation CRYSTAL CLK INT CLK (DIVBY2) TXD INTERNAL IRTXD OUTPUT IRTXD (MONOSHOT) The figure above illustrates the operation of the monoshot when the internal clock is set to divide by 2 mode, ...

Page 6

Absolute Maximum Ratings Parameter Symbol Storage Temperature T S Operating Temperature T A Output Current I O [1] Power Dissipation P MAX [2] Input/Output Voltage Power Supply Voltage V CC Electrostatic Protection V ESD Notes: 1. Maximum ...

Page 7

Recommended Operating Conditions (V = 2 - Parameter Supply Voltage Input Voltage Ambient Temperature High Level Input Voltage Low Level Input Voltage Output High Voltage Output Low Voltage Output High ...

Page 8

Application Circuits HSDL-7001 Connection to UART HSDL-1001 TXD RCV HSDL-7001 Connected to Microcontroller HSDL-1001 TXD RCV 3.6864 MHz 15 pF NOTE: POWERDN CAN BE USED AS A BASIC CHIP SELECT. THE HSDL-7001 WILL NOT ...

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