TDA9840 Philips Semiconductors, TDA9840 Datasheet

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TDA9840

Manufacturer Part Number
TDA9840
Description
TV and VTR stereo/dual sound processor with digital identification and I2C-bus control
Manufacturer
Philips Semiconductors
Datasheet

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Product specification
Supersedes data of 1995 Mar 21
File under Integrated Circuits, IC02
DATA SHEET
TDA9840
TV and VTR stereo/dual sound
processor with digital identification
and I
2
C-bus control
INTEGRATED CIRCUITS
1998 Jul 03

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TDA9840 Summary of contents

Page 1

... DATA SHEET TDA9840 TV and VTR stereo/dual sound processor with digital identification 2 and I C-bus control Product specification Supersedes data of 1995 Mar 21 File under Integrated Circuits, IC02 INTEGRATED CIRCUITS 1998 Jul 03 ...

Page 2

... TDA9840T SO20 1998 Jul 03 2 C-bus control GENERAL DESCRIPTION The TDA9840 is a stereo/dual sound processor for TV and VTR sets. Its identification ensures safe operation by using internal digital PLL technique with extremely small bandwidth, synchronous detection and digital integration 2 C-bus (switching time maximum 2.3 s; identification concerning the main functions) ...

Page 3

... STEREO DUAL fast mode STEREO DUAL normal mode STEREO DUAL fast mode STEREO DUAL f = 10.008 MHz lower side upper side 3 Product specification TDA9840 MIN. TYP. MAX. 4.5 5 8.8 15.5 16.5 20.5 250 0.3% 500 1.5% 1.4 1.6 2.4 2 ...

Page 4

... 2 L/A/MONO 25 k 250 mV RMS 0 to 0.4 dB A/MONO R/B 250 mV RMS 5 k TDA9840 DIGITAL PLL DIGITAL AND INTEGRATOR DEMODULATOR DIGITAL PLL DIGITAL DIGITAL AND PLL INTEGRATOR DEMODULATOR 25 k OSCILLATOR GENERATION OF V ref REFERENCE VOLTAGES XTAL 1/2 V GND P C ref 10 MHz ...

Page 5

... 2 L/A/MONO 25 k 250 mV RMS 0 to 0.4 dB A/MONO R/B 250 mV RMS 5 k TDA9840 DIGITAL PLL DIGITAL AND INTEGRATOR DEMODULATOR DIGITAL PLL DIGITAL DIGITAL AND PLL INTEGRATOR DEMODULATOR 25 k OSCILLATOR GENERATION OF V ref REFERENCE VOLTAGES XTAL 1/2 V GND P C ref The components of the external LC band-pass filter have the 10 MHz following order-No ...

Page 6

... Jul 03 2 C-bus control DESCRIPTION (from 1st sound carrier (from 2nd sound carrier (NICAM or AM sound (standard L (NICAM (SCART (SCART (main (main Product specification TDA9840 fpage SDA 1 20 SCL XTAL AGC DCL GND i pil TDA9840 ref MBE459 Fig.3 Pin configuration. ...

Page 7

... The I protocol is given in Tables respectively. The data transmission between the microcontroller and the other I supply voltage of the TDA9840 is not connected or when powering up or down. Finally, a Schmitt-trigger is built-in the SDA/SCL interface to suppress spikes from the 2 I C-bus ...

Page 8

... SO20 1998 Jul 03 2 C-bus control Fast mode / test mode The TDA9840 has a fast mode (test mode) to reduce the integration time of the 117/274 Hz integrator from approximately 1 to 0.5 s. ESD protection All pins are ESD protected. The protection circuits pin (pin 6). Additional represent the latest state of the art ...

Page 9

... CONDITIONS 54% modulation THD 1.5%; note THD 1.5%; note note only at pin 7 maximum 49 steps only at pin 8 maximum 9 steps see Fig.4 54% modulation THD 1. note Product specification TDA9840 MIN. TYP. MAX. 4.5 5 8.8 15.5 16.5 20.5 69.75 82.5 180 0.25 0.625 ...

Page 10

... with R 100 r 10 Product specification TDA9840 TYP. MAX. UNIT 0.5 V 1.6 V 2.65 V 250 350 1 +0.5 dB 350 400 kHz 0.2 ...

Page 11

... MHz lower side 188 upper side 411 450 18.75 high sensitivity 40 sensitivity loss dB; see Fig.2 V switched from i pil(rms 100 mV RMS value note 7 note 8 note 7 11 Product specification TDA9840 TYP. MAX. UNIT 5 W 550 600 mV 100 mV 1000 405 Hz 192 Hz 296 Hz 302 ...

Page 12

... STEREO 0.35 DUAL 0.35 fast mode; note 10 STEREO 0.175 DUAL 0.175 normal mode; note 11 STEREO 0.6 DUAL 0.6 fast mode; note 11 STEREO 0.3 DUAL 0.3 12 Product specification TDA9840 TYP. MAX. UNIT 0.38 Hz 0.69 Hz 0.69 Hz 0.69 Hz 0.89 Hz 2.05 Hz 1.15 Hz 2. ...

Page 13

... Product specification MIN. TYP. MAX. 0 100 0.3 1.5 3.0 5.5 4.7 4 0.3 1.5 3.0 5.5 1 0.3 0. dB. v EMF 2T/20T/white bar, 100% video) and 2 plus t plus t acqui AGC I2C read-out plus t . I2C read-out TDA9840 UNIT kHz ...

Page 14

... I C-bus transceiver and data-handling (bus specification) The TDA9840 is controlled by a microcomputer via the 2 bidirectional 2-line I C-bus. The two lines are a serial data line (SDA) and a serial clock line (SCL). Both lines must be connected to a positive supply via a pull-up resistor. Data transfer may be initiated only when the bus is not busy ...

Page 15

... If the PONRES bit of the status register will be set to HIGH (see status register) the data bytes for these both registers must be sent out of the memory to the TDA9840 via I register (see Table 7) must be changed, because the AF outputs are muted. 15 Product specifi ...

Page 16

... PONRES = 0 after a successful reading of the status register PONRES = 1 after power-on reset or after supply breakdown MONO sound identified DUAL sound identified STEREO sound identified incorrect identification 1998 Jul 03 2 C-bus control A SUBADDRESS FUNCTION PONRES ST DS FUNCTION 16 Product specification TDA9840 A DATA DATA ...

Page 17

... Level adjustment 0000 0010 Stereo adjustment 0000 0011 Note 1. This byte is acknowledged by the TDA9840. Function of the bits: SW6 to SW0 input and output AF selection; see Table 7 LV3 to LV0 level adjustment; see Table 10 ST5 to ST0 stereo adjustment; see Table 11. Table 7 Data byte to select AF inputs and AF outputs [subaddress (00) ...

Page 18

... Table 9 AF switch configuration INPUT TRANSMITTER STATUS MONO STEREO DUAL External Table 10 Data byte to select level adjustment [subaddress (02) G ( 1998 Jul 03 2 C-bus control SIGNAL HEX DATA Product specification TDA9840 OUTPUT MAIN SCART HEX ...

Page 19

... INT1SN = 0 integration time approximately 1 s (default) INT1SN = 1integration time approximately 0.5 s. 1998 Jul 03 2 C-bus control G V (dB HEX 2.4 ] HEX Product specification DATA DATA INTFU TDA9840 D1 D0 HEX INT1SN ...

Page 20

... Philips Semiconductors TV and VTR stereo/dual sound processor with digital identification and oAF (dB Fig.4 Tolerance scheme of AF frequency response; de-emphasis with 15%). internal 1998 Jul 03 2 C-bus control Product specification TDA9840 MED647 oAF (Hz 5%), D1 D2 ...

Page 21

... Jul 03 2 C-bus control SDA AGC 2 100 F/ ref 3 100 nF C DCL 1 2 Fig.5 Test circuit of the stereo decoder TDA9840 TDA9840 modulated with 200 mV (p-p) 100 F / 100 Fig.6 Test circuit for measurement of ripple rejection. 21 SCL 20 10 MHz XTAL TDA9840 ...

Page 22

... ESD protection diode for pins 2 to 15, 17 and 19 1998 Jul 03 2 C-bus control + 22 TDA9840 – – inputs – – zener diode protection for pins 1, 18 and 20 Fig.7 Internal circuits. 22 Product specification TDA9840 + SCL 19 XTAL – – D2 – + GND – – 200 outputs ...

Page 23

... REFERENCES JEDEC EIAJ SC603 23 Product specification 3.60 8.25 10.0 2.54 7.62 3.05 7.80 8.3 0.14 0.32 0.39 0.10 0.30 0.12 0.31 0.33 EUROPEAN PROJECTION TDA9840 SOT146 ( max. 0.254 2.0 0.01 0.078 ISSUE DATE 92-11-17 95-05-24 ...

Page 24

... REFERENCES JEDEC EIAJ MS-013AC detail 1.1 1.1 1.4 0.25 0.25 0.4 1.0 0.043 0.043 0.055 0.01 0.01 0.016 0.039 EUROPEAN PROJECTION Product specification TDA9840 SOT163 ( 0.9 0.1 0 0.035 0.004 0.016 ISSUE DATE 95-01-24 97-05-22 ...

Page 25

... Use only a low voltage soldering iron (less than 24 V) applied to the flat part of the lead. Contact time must be limited to 10 seconds 300 C. When using a dedicated tool, all other leads can be soldered in one operation within seconds between 270 and 320 C. 25 Product specification TDA9840 ...

Page 26

... Philips. This specification can be ordered using the code 9398 393 40011. 1998 Jul 03 2 C-bus control 2 C components conveys a license under the Philips’ system provided the system conforms to the I 26 Product specification TDA9840 2 C patent to use the 2 C specification defined by ...

Page 27

... Philips Semiconductors TV and VTR stereo/dual sound processor with digital identification and I 1998 Jul 03 2 C-bus control NOTES 27 Product specification TDA9840 ...

Page 28

... Tel. +46 8 5985 2000, Fax. +46 8 5985 2745 Switzerland: Allmendstrasse 140, CH-8027 ZÜRICH, Tel. +41 1 488 2741 Fax. +41 1 488 3263 Taiwan: Philips Semiconductors, 6F, No. 96, Chien Kuo N. Rd., Sec. 1, TAIPEI, Taiwan Tel. +886 2 2134 2865, Fax. +886 2 2134 2874 Thailand: PHILIPS ELECTRONICS (THAILAND) Ltd., 209/2 Sanpavuth-Bangna Road Prakanong, BANGKOK 10260, Tel ...

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