TFDS4400 查看數據表（PDF） - Vishay Semiconductors

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产品描述 (功能)

生产厂家

TFDS4400

SIR Transceiver Module (115.2 kbit/s) 2.7 V to 5.5 V

Vishay Semiconductors 

TFDS4400

Vishay Semiconductors

Ordering Information

Part Number

TFDS4400–TR3

Qty / Reel

1000 pcs

Functional Block Diagram

VCC1/SD

Description

Amplifier

Comparator

Driver

VCC2

Rxd

R1

AGC

SC

Logic

Txd

Open Collector Driver

IRED Anode

IRED Cathode

GND

14876

Figure 1. Functional Block Diagram

Pin Description

Pin Number Function

Description

I/O

1

IRED Anode IRED Anode, should be externally connected to VCC2

through a current control resistor

2

IRED Cathode IRED Cathode, internally connected to driver transistor

3

Txd

Transmit Data Input

I

4

Rxd

Received Data Output, open collector. No external

O

pull–up or pull–down resistor is required (20 kW resistor

internal to device). Pin is inactive during transmission.

5

NC

Do not connect, reserved for future features

6

VCC1

Supply Voltage

7

SC

Sensitivity control, increases sensitivity when active

I

8

GND

Ground

Active

HIGH

LOW

HIGH

www.vishay.com

2 (14)

12 34 56 78

Figure 2. Pinning

Document Number 82524

Rev. A1.5, 31-May-00

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