TMS3471C

2/3-INCH NTSC TIMER

SOCS028B – AUGUST 1991

Copyright

1

POST OFFICE BOX 655303

description

The TMS3471C is a monolithic integrated circuit

designed to supply timing signals for the Texas

Instruments (TI

™) 11-mm diagonal TC241 mono-

chrome CCD image sensor. The TMS3471C

supplies both CCD drive signals and NTSC

television synchronization signals at standard

video rates. It requires a single 5-V supply voltage

and a 14.318-MHz crystal-oscillator input. The

TMS3471C provides several options, including

multiple antiblooming modes, clamp-pulse selec-

tion, and delayed horizontal transfer.

The TMS3471C is used in conjunction with

level-shifting devices such as the TI TMS3473B

parallel driver and the TI TMS3472A serial driver.

It also supplies sample-and-hold signals for the TI TL1593 three-channel sample-and-hold and multiplex signals

for the TI TL1051 video preprocessor. The TMS3471C NTSC synchronization-signal outputs include composite

sync, composite blank, clamp, subcarrier, subcarrier delayed by 90 degrees, and burst flag.

The TMS3471C is supplied in a 44-pin plastic flat package and is characterized for operation from – 20

°C

to 45

°C.

This device contains circuits to protect its inputs and outputs against damage due to high static voltages or electrostatic fields. These

circuits have been qualified to protect this device against electrostatic discharges (ESD) of up to 2 kV according to MIL-STD-883C,

Method 3015; however, precautions should be taken to avoid application of any voltage higher than maximum-rated voltages to these

high-impedance circuits. During storage or handling, the device leads should be shorted together or the device should be placed in

conductive foam. In a circuit, unused inputs should always be connected to an appropriate logic voltage level, preferably either VCC or ground.

Specific guidelines for handling devices of this type are contained in the publication

Guidelines for Handling Electrostatic-Discharge-Sensitive

(ESDS) Devices and Assemblies available from Texas Instruments.

GND

SH1

SH2,3

PI

ABIN

GT

PS

PD

S2,3

S1

T

12 13

1

2

3

4

5

6

7

8

9

10

11

BCP2

CP2

CP1

CSYNC

CBLK

BF

SC

SC(90)

ABS0

ABS1

ABS2

14 15 16 17

FS PACKAGE

(TOP VIEW)

43 42 41 40 39

44

38

36 35 34

37

18 19 20 21 22

33

32

31

30

29

28

27

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25

24

23

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

TI is a trademark of Texas Instruments Incorporated.