HSDL-7002 View Datasheet(PDF) - Avago Technologies

Part Name

Description

Manufacturer

HSDL-7002

IrDA® 3/16 Encode/Decode Integrated Circuit in QFN Package

Avago Technologies 

Appendix A: General Application Guide for the HSDL-7002

Application Circuits for HSDL-7002

HSDL-3201

HSDL-7002

UART 16550

TXD

RXD RXD

IR_TXD

IR_RXD

TXD

SOUT

RXD

SIN

16XCLK

BAUDOUT

NRST

0.1 uF

10 kΩ

Vcc

Figure 5. HSDL-7002 Connection between a standard 16550 UART and HSDL-3201

HSDL-3201

HSDL-7002

MICRO CONTROLLER

TXD

RXD RXD

15 pF

TXD

IR_TXD

RXD

IR_RXD

A0

A1

A2

CLK_SEL

PULSEMOD

POWERDN

OSCIN OSCOUT

NRST

10 M

0.1 uF

SD0

SD1

IO1

IO2

IO3

IO4

IO5

IO6

10 k

Vcc

15 pF F = 3.6864 MHz

Note: POWERDN can be used as a basic chip select. The HSDL-7002 will not

be able to receive or transmit data while POWERDN is asserted.

Figure 6. HSDL-7002 Connection between a Microcontroller and HSDL-3201

Selection of Internal Clock Rate from Crystal Oscillator

Selected A2 A1 A0 Crystal Freq.

Clock Rate

Division

(bps)

115200

0

0

0

Divided by 2

57600

0

0

1

Divided by 4

19200

0

1

0

Divided by 12

9600

0

1

1

Divided by 24

38400

1

0

0

Divided by 6

4800

1

0

1

Divided by 48

2400

1

1

0

Divided by 96

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