Daewoo 21T2, 21Q2, 21Q1, 14T2, 21Q4, 14Q2, 20Q1, 14Q1 TDA8395 Secam Decoder, Symbol PIN Description

Page 22

TDA8395 (Secam Decoder)

(1) Features

Fully integrated filters

Alignment free

For use with baseband delay

(2)Description

The TDA8395 is a self-calibrating,fully integrated SECAM decoder. The IC should preferably be used in conjunction with the PAL/NTSC decoder TDA8362 and with the switch capacitor baseband delay circuit TDA4665. The IC incorporates HF and LF filters, a demodulator and an identification circuit (Iuminance is not processed in this IC).

A highly stable reference frequency is required for calibration and a two-level sandcastle pulse for blanking and burst gating.

(3)Block Diagram

 

 

CLOCHEref

PLLref

 

GND

 

 

 

 

 

 

Vp

TEST

 

 

 

100 nF

220 nF

 

 

 

 

 

 

7

8

3

6

2

 

 

BANDGAP

TUNING

TUNING

TDA8395

 

 

 

 

 

 

CVBS

16

CLOCHE

 

 

DE-

 

 

 

ACC

PLL

 

 

 

 

FILTER

EMPHASIS

 

 

 

 

 

 

 

 

 

 

 

 

 

9

–(R-Y)

 

 

 

 

 

 

 

 

INTERFACE

CONTROL

IDENT-

 

OUTPUT

 

 

 

IFICATION

 

STAGE

10

 

 

 

 

 

 

 

 

 

 

 

 

 

–(B-Y)

 

1

15

 

 

 

 

 

fref/IDENTSAND

(4) Pin Description

SYMBOL

PIN

DESCRIPTION

fp1/IDENT

1

reference frequency input/identification input

TEST

2

test output

Vp

3

positive supply voltage

n.c.

4

not connected

n.c.

5

not connected

GND

6

ground

CLOCHEref

7

Cloche reference filter

PLL ref

8

PLL reference

-(R-Y)

9

-(R-Y) output

-(B-Y)

10

-(B-Y) output

n.c.

11

not connected

n.c.

12

not connected

n.c.

13

not connected

n.c.

14

not connected

SAND

15

sandcastle pulse input

CVBS

16

video (chrominance) input

 

 

 

21

Image 22
Contents Chassis CP-370 Contents Specifications Safety Instruction RAY Radiation PrecautionWhite Balance Alignment InstructionsScreen FocusVertical Slope Geometry Vertical CenterVertical Size Vertical S-CORRECTIONPage IC Description Cmos Compatible I/O Pins Plastic 42 Ysdp Pins Package Block DiagramDisplay Feature AcquisitionSynchronization Sdip 52 package Supply voltage Block Diagram ControllerPin Name Symbol Description Pin DescriptionCvbs Features PIN Symbol DescriptionAudio RGBBlock Diagram Pin Description Name Sound if InputVertical Guard Name DescriptionBeam current limitinq Luminance EAST-WEST Drive 3Block Diagram Pin Description TDA4665Base Band Delay LinePIN Description Symbol PIN Description TDA8395 Secam DecoderBlock Diagram Pin Description TDA6106Q Video Output AmplifierI802 PC817 VecoTDA8356 DC-coupled vertical deflection circuit 3Block Diagram 4Pin Description TDA7056 BTL Audio Output Amplifier 1 Speaker ModelSTR-S5707 Hybrid IC for a Switching Regulator PIN Name Symbol DescriptionTa=25 Description Terminal Symbol Rating UnitMIN TYP MAX Rating UnitTDA8138 5.1V+12V regulator with Disable and Reset TDA 1519BAUDIO Output Amplifier 2 Speaker Model PIN Signal Description PCA84C 122AIC RemoconCircuit Description Geometry processing Vertical synchronizationColour decoder Integrated video filters TuningRGB output and black current stabilization Base band delay line TDA4665 TDA8356 vertical deflection Horizontal deflectionVIN terminal, start-up circuit Power Supply STR-S5707Video amplifiers Oscillator, F/B terminal voltage PinLatch circuit Drive circuitOCP over-current protection function Thermal shutdown circuitTrouble Shooting Charts No RasterNo Pictureraster OK No Vertical Scaningone Horizontal Line on Screen No Color No Soundpicture OK Abnormal NormalNo External A/VRF OK No ON-SCREEN Displaypicture OKRemote Control Unit Troublelocal Control OK User’s control condition IC DC Voltage ChartsInput signal Line VoltageI502TDA4665 I501TDA8374AI301TDA8356 I503TDA8395Electrical Parts List LOC PART-CODE PART-NAME Part Type RemarkPTSPPWA499 Speaker AS DTC-14Q1VM IC AMP 5PTPS60MB Filter Cera TPS 6.0MBEFC-S6ROME3 CEXF1H229V Electro CEXF1H470V Electro 5PXPS45MB Filter Cera TPS-4.5MB Trap Tapping CCZB1H181K Cera DUZ5R1BM Diode Zener Coil Peaking Wire Copper AWG22 1/0.65 TIN Coating R530 RD-AZ203J R703 RD-AZ272J # Front A/V Part List Option Conn ASS’Y Difference Part List LOC Part NameCP-370 Inch Difference Part List LOC Part Name Model RemarkPage Page Page Page Page Page Page Page Page Page Page