Electronic Circuits Schematics Projects




PAL Colour Encoder (TEA2000-V1)

Rating: 1.00/10 (2Votes cast)

Category: Inside Circuits
Views: 5647
Rank: 10

A PAL color encoder and video summer which requires just composite sync and composite blanking inputs, and a 6-bit binary coded input giving the color information. The inputs are organized as 2 bits per primary color with gamma correction automatically applied to the resultant luminance and chrominance levels.
PAL Colour Encoder (TEA2000-V1)



Each of the equally spaced intensity levels for each primary color is combined with those of the other primary colors. This produces 64 output colors comprising a wide range of saturated and desaturated colors, black, white and two levels of grey. The out


Datasheet file1: Click here to download BZY88C5V1.pdf datasheet.

Datasheet file2: Click here to download UM1233.pdf datasheet.

Datasheet file3: Click here to download TEA2000.pdf datasheet.


Related circuits

Twin Bell Circuit Circuit

It is often desirable for a single doorbell to be operated by two buttons, for instance, one at the front door and the other at the back door. The additional button, S2 in series with the break contact of relay Rel, is connected in parallel with the original bell-push, SI. When S2 is pressed,...



2000V Low-Current Power Supply

In this circuit Ql, Q2, Rl, and CI form a multivibrator. The square wave that results from the oscillation



Safety flare

When SI is on, power is applied to an oscillator composed of Ql, Rl, Cl, LI, and L2. Coil Ll is the primary winding of Tl, and L2 is the feedback winding. When Ql turns on, its collector current saturates Tl's ferrite core. That, in turn, removes the base drive to Ql through L2. Transistor Ql...



Over-voltage protection circuit

A silicon-controlled rectifier is installed in parallel with the 12-V line and connected to a normally-closed 12-V relay, K1. The SCR's gate circuit is used to sample the applied voltage. As long as the applied voltage stays below a given value, SCR1 remains off and Kl's contacts remain closed,...



Harmonic generator

This circuit will produce 50µV harmonics through 1296 MHz with an input of 05-1 V from a 100 or 1000 kHz crystal oscillator



Ring-around-led-flasher

When power is first turned on, two of the LEDs are on and the other two remain off until the timing cycle reverses. The LEDs flash in pairs, but by pressing and holding Sl closed until only one of the LEDs is on, and then releasing it, the four LEDs can be made to flash in sequential order. The...



Dual 50V/5A Universal Power Supply

Tl has two primaries and six secondaries; the two 120-VAC primaries and 6.3-VAC secondaries are i



Active-antenna

All capacitors in this circuit are disc ceramic. Fixed-value resistors are 1/.-or 1/2-W carbon. Rl controls the gain of Ul. RFCl is a miniature 2.5mH rf choke.



CCTV Eyesis eye dome camera 700 tvl, 2.8-12mm lens

blue electronic hi-tech tree growing loop


Comments




 characters left

Captcha

captchaPlease input letters you see on the image.
Click on image to redraw.



Facebook Comments

Most searched
 
Accounts area
Username:
Password:
Forgot password? Register
Circuits