TDA8822M

Manufacturer Part NumberTDA8822M
DescriptionUniversal I2C-bus programmable RF modulator
ManufacturerPhilips Semiconductors
TDA8822M datasheet
 


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DATA SHEET
TDA8822
Universal I
RF modulator
Preliminary specification
File under Integrated Circuits, IC02
INTEGRATED CIRCUITS
2
C-bus programmable
1997 Jan 08

TDA8822M Summary of contents

  • Page 1

    DATA SHEET TDA8822 Universal I RF modulator Preliminary specification File under Integrated Circuits, IC02 INTEGRATED CIRCUITS 2 C-bus programmable 1997 Jan 08 ...

  • Page 2

    ... ORDERING INFORMATION TYPE NUMBER NAME TDA8822T SO24 plastic small outline package; 24 leads; body width 7.5 mm TDA8822M SSOP24 plastic shrink small outline package; 24 leads; body width 5.3 mm 1997 Jan 08 GENERAL DESCRIPTION The TDA8822 is a programmable modulator which generates channel from a baseband video signal and a baseband audio signal in the event of negative video and FM sound standards (B/G, I, D/K, M and N standards) ...

  • Page 3

    ... Philips Semiconductors 2 Universal I C-bus programmable RF modulator QUICK REFERENCE DATA PAL B/G, PAL I, PAL D/K or NTSC; MD setting = 4; DEV setting = 2; CCA CCD amb PS setting = 1; video input signal = 500 mV (p-p) EBU colour bars; audio input signal = 45 mV (p-p); 1 kHz sine wave; unless otherwise specified. ...

  • Page 4

    ... Philips Semiconductors 2 Universal I C-bus programmable RF modulator BLOCK DIAGRAM VIDEO handbook, full pagewidth 24 CLAMP VIDEO AMP. 21 NICAM NICAM AMP. 22 AUDIO AUDIO AMP. DEV setting 3 PREEMPH test AUDIO 2 ACP CHARGE PUMP 14 SCL 15 SDA 2 I C-BUS RECEIVER AND 16 LOGIC P0 17 TPSG 1997 Jan 08 AGND ...

  • Page 5

    ... Philips Semiconductors 2 Universal I C-bus programmable RF modulator PINNING SYMBOL PIN DESCRIPTION V 1 analog power supply CCA ACP 2 audio charge pump output PREEMPH 3 audio pre-emphasis network RFOSCA 4 RF oscillator A (collector) output RFOSCB 5 RF oscillator B (base) input OGND 6 RF oscillator ground RFOSCC 7 RF oscillator C (base) input ...

  • Page 6

    ... Philips Semiconductors 2 Universal I C-bus programmable RF modulator FUNCTIONAL DESCRIPTION The TDA8822 is a programmable RF modulator which can be divided into the following parts: Video part Audio part RF part. Video part The video part provides the following: The video part includes a clamping circuit which sets the internal reference voltage to the bottom of the synchronizing pulse ...

  • Page 7

    ... Philips Semiconductors 2 Universal I C-bus programmable RF modulator Audio part The audio part provides the following: The sound subcarrier is created in an integrated VCO. The signal at the output of this VCO is fed to a stage that adjusts the picture-to-sound ratio and to the audio programmable divider. ...

  • Page 8

    ... Philips Semiconductors 2 Universal I C-bus programmable RF modulator Table 4 Picture-to-sound ratio setting (typical values) PS SETTING part The RF part provides the following: The RF oscillator can produce any frequency used for TV transmission, from 35 to 890 MHz. The frequency range depends on the components used in the application (see Table 11) ...

  • Page 9

    ... Philips Semiconductors 2 Universal I C-bus programmable RF modulator T0 is set to logic 1, RF0 is set to logic 1, TPSG is set to logic 1 and P0 is set to logic 0 to select the video high impedance test mode because this mode that the RF oscillator starts in the best conditions. The TPSG bit is used to switch on or off the TPSG using ...

  • Page 10

    ... Philips Semiconductors 2 Universal I C-bus programmable RF modulator Table 6 RF oscillator on/off setting (see note 1) STATE OF RF0 0 1 Note 1. This table is valid only if bit TPSG is set to logic 0. Table 7 Output port programming STATE Table 8 Overview of the normal modes T0 RF0 TPSG P0 ( ...

  • Page 11

    ... Philips Semiconductors 2 Universal I C-bus programmable RF modulator Table 9 Overview of the test modes T0 RF0 TPSG Notes 1. During the test mode (bit T0 set to logic 1), the pin TPSG is unused, meaning that the input information does not have any effect, and that the output port does not sink any current ‘ ...

  • Page 12

    ... Philips Semiconductors 2 Universal I C-bus programmable RF modulator Example of programming We want to program the TDA8822 in a UHF application, on channel 21 (picture carrier at 471.25 MHz B/G standard (sound carrier at 5.5 MHz from the picture carrier) with a Picture-to-Sound ratio of 12 dB, a modulation depth of 82.5% and a deviation set to 50.5% in normal mode, without TPSG, output port on. ...

  • Page 13

    ... The IC withstands the ESD test in accordance with the “UZW-B0/FQ-A302” specification equivalent to the “MIL-STD-883C category B” (2000 V). The IC withstands the ESD test in accordance with Philips Semiconductors Machine Model (MM), specification “UZW-B0/FQ-B302” , issue date November 6 ...

  • Page 14

    ... Philips Semiconductors 2 Universal I C-bus programmable RF modulator CHARACTERISTICS PAL B/G, PAL I, PAL D/K, or NTSC; MD setting = 4; DEV setting = 2; CCA CCD amb PS setting = 1; video input signal = 500 mV (p-p) EBU colour bars; audio input signal = 45 mV (p-p) 1 kHz sine wave; unless otherwise specified. SYMBOL ...

  • Page 15

    ... Philips Semiconductors 2 Universal I C-bus programmable RF modulator SYMBOL PARAMETER NICAM characteristics Z NICAM input impedance NICAM P/N level between picture carrier and NICAM carrier f frequency response of the NICAM NICAM input BER bit error rate EHD eye-height degradation Channel characteristics f RF frequency range RF f picture carrier accuracy ...

  • Page 16

    ... Philips Semiconductors 2 Universal I C-bus programmable RF modulator SYMBOL PARAMETER XTAL characteristics |Z | XTAL input impedance XTAL Output Port characteristics V low voltage PORT I off-state leakage current PORT(lk) I sinking current in the port PORT(sink) TPSG pin characteristics V voltage on pin TPSG to switch the TPSG(on) TPSG on V voltage on pin TPSG to switch the ...

  • Page 17

    ... Philips Semiconductors 2 Universal I C-bus programmable RF modulator 6. Measured with no pre-emphasis on the audio input and no de-emphasis in the receiver. Measurement is done for frequencies between 50 Hz and 15 kHz, reference is the level measured at 1 kHz. 7. The accuracy only depends on the accuracy of the reference frequency (accuracy of the crystal). Notice that the value of the capacitor in series with the crystal must be chosen close as possible to the load capacitance of the crystal ...

  • Page 18

    ... Philips Semiconductors 2 Universal I C-bus programmable RF modulator handbook, full pagewidth handbook, full pagewidth 1997 Jan Fig.4 CCIR insertion line 17 Fig.5 CCIR insertion line 330. 18 Preliminary specification ...

  • Page 19

    ... Philips Semiconductors 2 Universal I C-bus programmable RF modulator INTERNAL PIN CONFIGURATION handbook, full pagewidth 1 V CCA 2 ACP 3 PREEMPH 4 RFOSCA 5 RFOSCB 6 OGND 7 RFOSCC 8 RFOSCD 9 VVT 10 VCP 11 V CCD 12 XTAL 1997 Jan 08 VOLTAGE REGULATOR V CCA regulated voltage AGND V CCD V CCA DGND V CCA regulated voltage AGND ...

  • Page 20

    ... Philips Semiconductors 2 Universal I C-bus programmable RF modulator APPLICATION INFORMATION SCL SDA C21 NICAM 1 nF R21 C22 51 220 pF R27 AUDIO 220 k C24 R24 VIDEO 470 100 nF VIDEO R26 R25 82 470 CCA C1 100 nF R2 4.7 k C25 (1) The components marked: C4, C5, C6, C7, C8, L1 and D1 must be chosen from Table 11 to get the desired frequency range. ...

  • Page 21

    ... Philips Semiconductors 2 Universal I C-bus programmable RF modulator Application design In the design of the application highly recommended to separate the part of the RF oscillator as much as possible from the part of the RF outputs in order to avoid parasitic coupling between these two parts. A good solution is shielding the RF oscillator part to avoid radiation from and to this part. The pin OGND must be connected to the shielding box and to ground ...

  • Page 22

    ... Philips Semiconductors 2 Universal I C-bus programmable RF modulator TPSG input/output (pin 17) As already mentioned, this pin can be used either as an input output input, it allows to turn on the TPSG, without changing anything to the word the TDA8822 is 2 programmed through the I C-bus. In this mode simply necessary to connect a switch between the pin TPSG and DGND (see Fig ...

  • Page 23

    ... Philips Semiconductors 2 Universal I C-bus programmable RF modulator handbook, halfpage RFGND 20 C19 RFA RFA 19 100 pF R15 C18 RFB RFB 18 100 pF TPSG R15 SDA 15 SDA 270 R14 SCL 14 SCL 270 DGND 13 Fig.8 Use of the pin TPSG as an input. 1997 Jan 08 handbook, halfpage ...

  • Page 24

    ... Philips Semiconductors 2 Universal I C-bus programmable RF modulator PACKAGE OUTLINES SO24: plastic small outline package; 24 leads; body width 7 pin 1 index 1 e DIMENSIONS (inch dimensions are derived from the original mm dimensions) A UNIT max. 0.30 2.45 2.65 mm 0.25 0.10 2.25 0.012 0.096 inches 0.10 0.01 0.004 0.089 Note 1 ...

  • Page 25

    ... Philips Semiconductors 2 Universal I C-bus programmable RF modulator SSOP24: plastic shrink small outline package; 24 leads; body width 5 pin 1 index 1 e DIMENSIONS (mm are the original dimensions) A UNIT max. 0.21 1.80 mm 2.0 0.25 0.05 1.65 Note 1. Plastic or metal protrusions of 0.20 mm maximum per side are not included. ...

  • Page 26

    ... Philips Semiconductors 2 Universal I C-bus programmable RF modulator SOLDERING Introduction There is no soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. However, wave soldering is not always suitable for surface mounted ICs, or for printed-circuits with high population densities ...

  • Page 27

    ... Philips Semiconductors 2 Universal I C-bus programmable RF modulator DEFINITIONS Data sheet status Objective specification This data sheet contains target or goal specifications for product development. Preliminary specification This data sheet contains preliminary data; supplementary data may be published later. Product specification This data sheet contains fi ...

  • Page 28

    ... Tel. +46 8 632 2000, Fax. +46 8 632 2745 Switzerland: Allmendstrasse 140, CH-8027 ZÜRICH, Tel. +41 1 488 2686, Fax. +41 1 481 7730 Taiwan: Philips Semiconductors, 6F, No. 96, Chien Kuo N. Rd., Sec. 1, TAIPEI, Taiwan Tel. +886 2 2134 2870, Fax. +886 2 2134 2874 Thailand: PHILIPS ELECTRONICS (THAILAND) Ltd., 209/2 Sanpavuth-Bangna Road Prakanong, BANGKOK 10260, Tel ...