THCS134_Rev.1.00_E

Copyright©2014 THine Electronics, Inc.

THine Electronics, Inc.

Security E

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

Function Setup for Serial I/O Pins

IOP and ION pins are set as 1 line CMOS I/O or 2-lane LVDS I/O with a SIG pin.

Pin Setup

Pin Function

Description

SIG

IOP

ION

L

CMOS I/O

*

CMOS I/O

H

Differential mode I/O＋

Differential mode I/O

Differential mode I/O

＊

: Please keep pin being opened(No connection)



Function of Transmission Status Error Indicator, FAULTN (Receiver mode)

FAULTN is the output pin. When the protocol of received data is not correct or serial data more than

50usec (typ) is not received, FAULTN pin will be changed into low level. The received data is

canceled when a FAULTN pin outputs Low. When normal serial data is received, a FAULTN pin

outputs High in case of pulled up externally.



Digital Filter Function

When FILT pin is set to high level, the digital filter function is active. If the receiver matches the 3

sampling frequency content with the deserialized parallel data, it is updated as the correct data.



Writing and Reading of Parallel Data by Serial Communication

The THCS134 is able to write and read data by 3-wire serial I/F on 16bit register.

Electrical Characteristic AC Characteristics (3-wire Serial I/O Unit)

Mark

Parameter

Condition

Min

Typ

Max

Unit

fSCK

SCK Frequency

-

-

-

10

MHz

tCH

SCK High period

-

50

-

-

ns

tCL

SCK Low period

-

50

-

-

ns

tDVCH

SI Setup time

-

10

-

-

ns

tCHDX

SI Hold time

-

15

-

-

ns

tCHSL

CSN Not Active Hold time

-

10

-

-

ns

tSLCH

CSN Active Setup time

-

200

-

-

ns

tCHSH

CSN Active Hold time

-

50

-

-

ns

tSHCH

CSN Not Active Set up time

-

50

-

-

ns

tSHSL

CSN Not Active period

-

2

-

-

us

tSLSO

Delay time From CSN Fall to SO Output

CL=25pF

-

-

190

ns

tCLSO

Delay time From SCK Fall to SO Output

CL=25pF

-

-

40

ns