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TDA8360 датащи(PDF) 10 Page - NXP Semiconductors |
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TDA8360 датащи(HTML) 10 Page - NXP Semiconductors |
10 / 36 page March 1994 10 Philips Semiconductors Objective specification Integrated PAL and PAL/NTSC TV processors TDA8360; TDA8361; TDA8362 The conditions are: • Signal identified at fosc = 3.6 MHz; VO = 6 V • Signal identified at fosc = 4.4 MHz (or no colour); VO = 8 V. This information can be used to switch the sound bandpass filter and trap filter. TDA8361 This IC contains an automatic PAL/NTSC decoder. The conditions for connecting the reference crystals are the same as for the TDA8360. The decoder can be forced to PAL when the hue control pin is connected to the positive supply voltage via a 5k Ω or 10 kΩ resistor (approximately). The decoder cannot be forced to the NTSC standard. It is also possible to see if a colour signal is recognized via the saturation pin. TDA8362 In addition to the possibilities of the TDA8361, the TDA8362 can co-operate with the SECAM add-on decoder TDA8395. The communication between the two ICs is achieved via pin 32. The TDA8362 supplies the reference signal (4.43 MHz) for the calibration system of the TDA8395, identification of the colour standard is via the same connection. When a SECAM signal is detected by the TDA8395 the IC will draw a current of 150 µA. When TDA8362 has not identified a colour signal in this condition it will go into the SECAM mode, that means it will switch off the R −Y and B−Y outputs and increase the voltage level on pin 32. This voltage will switch off the colour-killer in the TDA8395 and switch on the R −Y and B−Y outputs of the TDA8395. Forcing the system to the SECAM standard can be achieved by loading pin 32 with a current of 150 µA. Then the system manager in the TDA8362 will not search for PAL or NTSC signals. Forcing to NTSC is not possible. For PAL/SECAM applications the input signal for the TDA8395 can be obtained from pin 27 (hue control) when this pin is connected to the positive supply rail via the 5 k Ω or 10 k Ω resistor. An external source selector is required by the TDA8395/TDA8362 combination for PAL/SECAM/NTSC applications. RGB output circuit The colour difference signals are matrixed with the luminance signal to obtain the RGB signals. Linear amplifiers have been chosen for the RGB inputs so that the circuit is suitable for incoming signals from the SCART connector. The contrast and brightness controls operate on internal and external signals. The fast blanking pin has a second detection level at 3.5 V. When this level is exceeded the RGB outputs are blanked so that “On-Screen-Display” signals can be applied to the outputs. The output signal has an amplitude of approximately 4 V, black-to-white, with nominal input signals and nominal control settings. The nominal black level is 1.3 V. |
Аналогичный номер детали - TDA8360 |
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Аналогичное описание - TDA8360 |
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