SM5172-L6 View Datasheet(PDF) - Samhop Mircroelectronics

Part Name

Description

Manufacturer

SM5172-L6

3¹² RF ENCODER

Samhop Mircroelectronics 

三合微科股份有限公司

SAMHOP Microelectronics Corp.

SM5172

312 RF ENCODER

Valid Transmission

After Power On SM5172 enters the Search Address mode, if SM5172 finds 2 consecutive

Address that matches the Address Pin setting of SM5172 then it will set VT high.

If VT is set high, SM5172 is still in search Address. After 2 consecutive Address that do not

match the setting on SM5172, SM5172 will disable VT.

The timing are shown in the following diagram.

DIN

1st Address S 2nd Address S

VT

Latch or Momentary Data Output Type

After Power On SM5172 is set in Address search mode, if SM5172 finds 2 consecutive Address

that matches the Address setting of SM5172. SM5172 will enter Data Compare mode. It will

compare perviously 2 receive data, if they match each then SM5172 will set VT high and send

data O/P.

SM5172 re-enters Address search mode, after 2 consecutive Address that do not match the

setting on SM5172 will disable VT and momentary's data but keep Latch's data intact.

DIN

DATA PINS

(Momentary)

DATA PINS

(Latch)

DATA WORDS

T

DATA OUTPUT X

DATA OUTPUT X

DATA WORDS

T

DATA OUTPUT Y

DATA OUTPUT Y

VT

T= 2 CODE WORD WIDTH

Page 6

OCT. 2001

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