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NXP Semiconductors TDA8752B manuel d'utilisation

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Table des matières du manuel d’utilisation

  • Page 1

    TD A8752B T riple high-speed Analog-to-Digital Conv er ter 110 Msps Rev . 03 — 21 J uly 2000 Product specification c c 1. General description The TD A8752B is a triple 8-bit ADC with controllable amplifiers and clamps f or the digitizing of large bandwidth RGB signals. The clamp le vel, the gain and all other settings are controlled via a seria[...]

  • Page 2

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 2 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reserved. ■ P o wer-down mode ■ P ossibility to use up to f our ICs in the same system when using the I 2 C-bus interf ace, or more when us[...]

  • Page 3

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 3 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. 5. Or dering information DR PLL PLL divider ratio 100 − 4 095 P tot total power dissipation f clk = 110 MHz; ramp input − 1.1 ?[...]

  • Page 4

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 4 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. 6. Bloc k diagram Fig 1. Block dia gram. FCE467 SERIAL INTERF ACE I 2 C-BUS OR 3-WIRE I 2 C/3W I 2 C-bus; 1-bit (Hlev el) REGULA T O[...]

  • Page 5

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 5 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. Fig 2. Red channel diagram. 150 k Ω RIN V P V CCAR RCLP CLP RAGC CLKADC V ref 3 k Ω 45 k Ω DAC 5 DAC ROR R0 to R7 OE RBO T RGA[...]

  • Page 6

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 6 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. Fig 3. PLL diagram. FCE465 PHASE FREQUENCY DETECT OR I 2 C-bus; 5 bits (Ip, Up , Do) I 2 C-bus; 1 bit (Vlev el) I 2 C-bus; 12 bits ([...]

  • Page 7

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 7 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. 7. Pinning inf ormation 7.1 Pinning Fig 4. Pin configuration. 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 [...]

  • Page 8

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 8 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. 7.2 Pin description T able 3: Pin description Symbol Pin Description n.c. 1 not connected DEC2 2 main regulator decoupling input 2 V[...]

  • Page 9

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 9 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. SD A 39 I 2 C-b us/3-wire serial bus data input V DDD 40 logic I 2 C-b us/3-wire serial bus digital power supply V SSD 41 logic I 2 [...]

  • Page 10

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 10 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. CKREFO 80 ref erence output clock re-synchroniz ed horizontal pulse CKA O 81 PLL cloc k output 3 (in phase with reference output cl[...]

  • Page 11

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 11 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. 8. Functional description This triple high-speed 8-bit ADC is designed to conv er t RGB signals, coming from an analog source, into[...]

  • Page 12

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 12 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. The calibration of the gains is done using the f ollowing principle. F rom the ref erence voltage V ref a ref erence signal of 0.15[...]

  • Page 13

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 13 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. 8.4 ADCs The ADCs are 8-bit with a maximum cloc k frequency of 110 Msps. The ADCs input range is 1 V (p-p) full-scale. One out of r[...]

  • Page 14

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 14 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. Where: f n = the natural PLL frequency K O = the VCO gain DR = PLL divider ratio C Z and C P = capacitors of the PLL filter . The [...]

  • Page 15

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 15 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. The PLL can be used in three diff erent methods: • The IC can be used as stand-alone with a sampling frequency of up to 110 MHz. [...]

  • Page 16

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 16 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. 8.7 I 2 C-bus and 3-wire serial b us interface The I 2 C-bus and 3-wire serial buses control the status of the diff erent control D[...]

  • Page 17

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 17 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. 9. I 2 C-b us and 3-wire serial bus interfaces 9.1 Register definitions The configuration of the diff erent registers is shown in[...]

  • Page 18

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 18 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. The def ault programmed v alue is: • Programmed code = 127 • Clamp code = 0 • ADC output = 0. 9.1.2 Coarse and fine register[...]

  • Page 19

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 19 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. The def ault programmed v alue is: N FINE =0 . 9.1.3 Control register COAST and HSYNC signals can be in verted by setting the I 2 C[...]

  • Page 20

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 20 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. The bits Vco1 and Vco0 control the VCO gain. The def ault programmed v alue is as f ollows: • Inter nal resistance = 16 k Ω •[...]

  • Page 21

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 21 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. 9.1.5 Divider register This register controls the PLL frequency . The bits are the LSB bits. The def ault programmed v alue is 0011[...]

  • Page 22

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 22 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. 9.2 I 2 C-bus pr otocol The I 2 C-bus address of the circuit is 1001 1xx0. Bits ‘A2’ and ‘A1’ are fixed b y the potential [...]

  • Page 23

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. Product specification Rev . 03 — 21 July 2000 23 of 38 9.3 3-wire serial bus pr otocol F or the 3-wire serial bus the first byte ref ers to the register address which is programmed. The[...]

  • Page 24

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 24 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. 10. Limiting values 11. Thermal characteristics 12. Characteristics T able 15: Limiting values In accordance with the Absolute Maxi[...]

  • Page 25

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 25 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. I DDD logic supply current f or I 2 C-bus and 3-wire serial bus − 1.0 − mA I CCD digital supply current − 40 − mA I CCO out[...]

  • Page 26

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 26 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. G E(rms) channel-to-channel gain matching (RMS value) maximum coarse gain; T amb =2 5 ° C − 1 − % minimum coarse gain; T amb =[...]

  • Page 27

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 27 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. DNL DC diff erential non linearity from IC analog input to digital output; ramp input; f clk = 110 MHz −± 0.5 ± 1.0 LSB ENOB ef[...]

  • Page 28

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 28 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. ADC data outputs V OL LO W -lev el output voltage I o =1m A − 0 0.4 V V OH HIGH-le vel output v oltage I o = − 1 mA 2.4 V CCD ?[...]

  • Page 29

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 29 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. [1] Effective bits are obtained via a F ast Fourier T ransf or m (FFT) treatment taking 8 000 acquisition points per equivalent fun[...]

  • Page 30

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 30 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. [1] PLL long-ter m time jitter is measured at the end of the video line, where it is at its maximum. T able 18: Examples of PLL set[...]

  • Page 31

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 31 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. 13. Application information All supply pins hav e to be decoupled, with two capacitors: one for the high frequencies (appro ximatel[...]

  • Page 32

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 32 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. 14. P ac kage outline Fig 14. SO T317-2 packa ge outline . UNIT A 1 A 2 A 3 b p cE (1) eH E LL p Z y w v θ REFERENCES OUTLINE VERS[...]

  • Page 33

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 33 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. 15. Handling information Inputs and outputs are protected against electrostatic discharge in nor mal handling. Howe ver , to be com[...]

  • Page 34

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 34 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. The f ootprint must incor porate solder thiev es at the downstream end. • F or packages with leads on f our sides, the f ootprint[...]

  • Page 35

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 35 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All rights reser ved. 17. Revision history T able 20: Revision history Rev Date CPCN Description 3 20000721 Product specification 2 20000110 Preliminary[...]

  • Page 36

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 36 of 38 9397 750 07338 © Philips Electronics N.V . 2000 All rights reser ved. 18. Data sheet status [1] Please consult the most recently issued data sheet before initiating or completing a design. 19. Definiti[...]

  • Page 37

    Philips Semiconductors TD A8752B T riple high-speed Analog-to-Digital Converter 110 Msps Product specification Rev . 03 — 21 July 2000 37 of 38 9397 750 07338 © Philips Electronics N.V . 2000. All r ights reserved. Philips Semiconductor s - a world wide company Argentina: see South America Australia: T el. +61 2 9704 8141, Fax. +61 2 9704 8139 [...]

  • Page 38

    © Philips Electronics N.V. 2000. Printed in The Netherlands All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without [...]