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Summary of Contents for Philips TDA8443A
- Page 1 DATA SHEET TDA8443A C-bus controlled YUV/RGB switch Product specification Supersedes data of November 1992 File under Integrated Circuits, IC02 Philips Semiconductors INTEGRATED CIRCUITS 1995 Mar 07...
- Page 2 Address selection for 7 devices Fast switching. GENERAL DESCRIPTION The TDA8443A is a general purpose two-channel switch for YUV or RGB signals. One channel provides matrixing from RGB to YUV, which can be bypassed. The IC is controlled via I...
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Page 3: Block Diagram
Philips Semiconductors C-bus controlled YUV/RGB switch BLOCK DIAGRAM handbook, full pagewidth SDA SCL S0 I C-BUS INTERFACE/ TDA8443A CLAMP CLAMP B/ (B Y) input input input SYNC1 channel 1 1995 Mar 07 B/ (B Y) input input DECODER MATRIX RGB/YUV... - Page 4 Philips Semiconductors C-bus controlled YUV/RGB switch PINNING SYMBOL select input (non-I SYNC2 synchronization input for Channel 2 fast switching input R/ (R Y)IN R or (R Y) signal input G/Y IN G or Y signal input B/ (B Y)IN B or (B Y) signal input...
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Page 5: Functional Description
Philips Semiconductors C-bus controlled YUV/RGB switch FUNCTIONAL DESCRIPTION The circuit contains two sets of inputs (see Fig.1). Both channels can receive RGB or YUV signals. Each set of inputs has its own synchronization input, which internally generates a pulse to clamp the inputs. The internal clamping pulse can also be controlled by a signal (e.g. - Page 6 Philips Semiconductors C-bus controlled YUV/RGB switch Table 2 Address selection ADDRESS SELECT PINS S2 (PIN 17) S1 (PIN 16) Notes 1. L = LOW level input voltage. 2. H = HIGH level input voltage. = non-I C-bus operation. Table 3 Mode control bits D7 and D6...
- Page 7 Philips Semiconductors C-bus controlled YUV/RGB switch Table 5 Priority/fast switching bit D2 FAST SWITCHING (PIN 3) 0.4 V Note 1. X = don't care. Power-on reset If the circuit is switched on in the I Table 7 Non-I C-bus mode (S2 = S1 = S0 = L)
- Page 8 Philips Semiconductors C-bus controlled YUV/RGB switch LIMITING VALUES In accordance with the Absolute Maximum System (IEC 134). SYMBOL supply voltage (pin 18) input voltage (pin 13) I(SDA) input voltage (pin 14) I(SCL) input voltage any other pin maximum output current...
- Page 9 Philips Semiconductors C-bus controlled YUV/RGB switch SYMBOL PARAMETER differential gain at nominal output diff(p-p) signals (peak-to-peak value) signal-to-noise ratio SVRR supply voltage ripple rejection DC output levels during clamping Synchronization channels gain difference (programmed value) diff bandwidth input amplitude of sync signal for...
- Page 10 Philips Semiconductors C-bus controlled YUV/RGB switch SYMBOL PARAMETER Select input HIGH level input voltage LOW level input voltage HIGH level input current LOW level input current ON input HIGH level input voltage LOW level input voltage HIGH level input current...
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Page 11: Timing Characteristics
Philips Semiconductors C-bus controlled YUV/RGB switch TIMING CHARACTERISTICS C-bus load conditions: 4 k pull-up resistor to +5 V; 200 pF capacitor to GND; all values are referenced to V SYMBOL PARAMETER time bus must be free before start set-up time for start condition SU;STA... - Page 12 Philips Semiconductors C-bus controlled YUV/RGB switch handbook, full pagewidth fast switching input signal output signal (YUV) 1995 Mar 07 switching delay 90 % 50 % 10 % switching time Fig.5 Fast switching signal diagram. Product specification TDA8443A MLD006...
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Page 13: Application Information
Philips Semiconductors C-bus controlled YUV/RGB switch APPLICATION INFORMATION Table 10 Channel input/output information INPUT 1 INPUT 2 Y = 0.34 V U = 1.33 V V = 1.05 V S = 0.3 V R = 0.75 V G = 0.75 V B = 0.75 V... - Page 14 Philips Semiconductors C-bus controlled YUV/RGB switch handbook, full pagewidth (B Y) (R Y) channel 1 (colour decoder) 1995 Mar 07 outputs (B Y) TDA8443A SYNC1 internal voltage (peritelevision connector) Fig.6 Application diagram (example). Product specification TDA8443A outputs (R Y) SYNC...
- Page 15 The clamp pulses can be generated in two ways: 1. Using the sync information (internal clamping) The sync information is clamped on top-sync and the information obtained from this action is used to switch an internal current source at pin 24. Pin 24 should be connected to V and a 1 nF capacitor to ground.
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Page 16: Package Outline
Philips Semiconductors C-bus controlled YUV/RGB switch PACKAGE OUTLINE DIP24: plastic dual in-line package; 24 leads (600 mil) pin 1 index DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT max. min. max. 0.51 inches 0.20 0.020 0.16 Note 1. -
Page 17: Life Support Applications
Philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale. - Page 18 Philips Semiconductors Product specification TDA8443A C-bus controlled YUV/RGB switch NOTES 1995 Mar 07...
- Page 19 Philips Semiconductors Product specification TDA8443A C-bus controlled YUV/RGB switch NOTES 1995 Mar 07...
- Page 20 Greece: No. 15, 25th March Street, GR 17778 TAVROS, Tel. (01)4894 339/4894 911, Fax. (01)4814 240 Hong Kong: PHILIPS HONG KONG Ltd., 15/F Philips Ind. Bldg., 24-28 Kung Yip St., KWAI CHUNG, N.T., Tel. (852)424 5121, Fax. (852)480 6960/480 6009 India: Philips INDIA Ltd, Shivsagar Estate, A Block , Dr.
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