Philips TDA8440 User's Manual
Contents
1. Vp V Input voltage LOW ViL 0 3 0 4 V Input current HIGH liH 20 uA Input current LOW liL 10 2 uA November 1985 8 Philips Semiconductors Product specification Switch for CTV receivers TDA8440 PARAMETER SYMBOL Bus free before start tBUF Start condition set up time ts STA Start condition hold time th STA SCL SDA LOW period tLow SCL HIGH period SCL SDA rise time SCL SDA fall time Data set up time write Data hold time write Acknowledge from TDA8440 set up time Acknowledge from TDA8440 hold time Stop condition set up time Notes to the characteristics 1 Also if the supply is switched off 2 Caused by drive on any other input at maximum level measured in B 5 MHz source impedance for the used input 75 Q crosstalk 20 log IN Vo video noise p p 2 V 3 SIN 20 lod noise rms B 5 MFZ V supply 20 9 7 on output at f max 100 kHz 4 Supply voltage ripple rejection ERTE nominal 0 5 V PBSA ma noise B 20 kHz 6 Caused by drive of any other input at maximum level measured in B 20 kHz source impedance of the used input 1 KQ V eut according to DIN 45405 CCIR 468 Vin max crosstalk 20 log 7 f 20 Hz to 20 kHz 8 All outputs are short circuit proof static 9 The inputs and output apart from SDA SCL and OFF withstand tests of MIL STD 883 C It is advisable to connected series resistors to these pins 10 Timings2. A selection can be made between two input signals and an OFF state The OFF state is necessary if more than one TDA8440 device is used The SDA and SCL pins can be connected to the I2C bus or to d c switching voltages Inputs So pin 11 S4 pin 13 and So pin 6 are used for selection of sub addresses or switching to the non l2C mode Inputs S S4 and Ss can be connected to the supply voltage H or to ground L In this way no peripheral components are required for selection Table 1 Sub addressing SUB ADDRESS i N 9 i o 2d Irt Ico Oe OE re m de RE Sse a aS E e E E ne non 2C addressable NON I2C BUS CONTROL If the TDA8440 switching device has to be operated via the AUXILIARY VIDEO AUDIO plug inputs S2 S4 and Sg must be connected to the supply line 12 V The sources internal and external and the gain of the video amplifier can be selected via the SDA and SCL pins with the switching voltage from the AUXILIARY VIDEO AUDIO plug e Sources are selected if SDA 12 V external source e Sources II are selected if SDA 0 V TV mode e Video amplifier gain is 2 x if SCL 12 V external source e Video amplifier gain is 1 x if SCL 0 V TV mode If more than one TDA8440 device is used in the non l2C bus system the OFF pin can be used to switch off the desired devices This can be done via the 12 V switching voltage on the AUXILIARY VIDEO AUDIO plug e All switches are in the OFF position
3. if OFF H 12 V e All switches are in the selected position via SDA and SCL pins if OFF L 0 V November 1985 4 Philips Semiconductors Product specification Switch for CTV receivers TDA8440 12C BUS CONTROL Detailed information on the 12C bus is available on request Table 2 TDA8440 I C bus protocol STA Ag As As Az Ao Ar Ao RW lac D7 Del Ds D4 l Ds D2 D Do ac sTO STA Start condition Ag 1 Fixed address bits As 0 Fixed address bits Ag 0 Fixed address bits A3 p i Fixed address bits A2 sub address bit fixed via So input Ay sub address bit fixed via S input Ao sub address bit fixed via S input R W read write bit has to be 0 only write mode allowed AC acknowledge bit 0 generated by the TDA8440 D7 1 audio la is selected to audio output a D7 0 audio la is not selected Dg 1 audio lla is selected to audio output a Dg 0 audio lla is not selected Ds 1 audio lb is selected to audio output b Ds 0 audio lb output is not selected D4 1 audio llb is selected to audio output b D4 0 audio llb is not selected D3 1 video is selected to video output D3 0 video lis not selected D2 1 video ll is selected to video output Do O video Il is not selected D 1 video amplifier gain is times 2 D4 0 video amplifier gain is times 1 Do 1 OFF input inactive Do 0 OFF input active STO stop condition OFF FUNCTION With the OFF input all output
4. 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 In these situations reflow soldering is often used This text gives a very brief insight to a complex technology A more in depth account of soldering ICs can be found in our IC Package Databook order code 9398 652 90011 Soldering by dipping or by wave The maximum permissible temperature of the solder is 260 C solder at this temperature must not be in contact DEFINITIONS with the joint for more than 5 seconds The total contact time of successive solder waves must not exceed 5 seconds The device may be mounted up to the seating plane but the temperature of the plastic body must not exceed the specified maximum storage temperature Tstg max If the printed circuit board has been pre heated forced cooling may be necessary immediately after soldering to keep the temperature within the permissible limit Repairing soldered joints Apply a low voltage soldering iron less than 24 V to the lead s of the package below the seating plane or not more than 2 mm above it If the temperature of the soldering iron bit is less than 300 C it may remain in contact for up to 10 seconds If the bit temperature is between 300 and 400 C contact may be
5. ts pat and ty pat deviate from the 1 C bus specification After reset has been activated transmission may only be started after a 50 us delay 11 12C bus load conditions are as follows 4kQ pull up resistor to 5 V 200 pF to GND All values are referred to Viy 3 V and Vy 1 5 V November 1985 9 Philips Semiconductors Product specification Switch for CTV receivers TDA8440 SDA write t t t t t s STA h STA LOW HIGH 7280976 s STO Fig 2 Timing diagram I C bus November 1985 10 Philips Semiconductors Product specification Switch for CTV receivers TDA8440 PACKAGE OUTLINE DIP18 plastic dual in line package 18 leads 300 mil SOT102 1 lt seating plane scale DIMENSIONS inch dimensions are derived from the original mm dimensions Bet A2 a eo UNIT max min max b by b2 c D E 21 8 6 48 21 4 6 20 0 86 0 26 0 84 0 24 mm 4 7 0 51 3 7 inches 0 19 0 020 0 15 Note 1 Plastic or metal protrusions of 0 25 mm maximum per side are not included OUTLINE REFERENCES EUROPEAN VERSION JEDEC EIAJ PROJECTION SOT102 1 fe ae ISSUE DATE November 1985 11 Philips Semiconductors Product specification Switch for CTV receivers TDA8440 SOLDERING Introduction There is no soldering method that
6. up to 5 seconds Data sheet status Objective specification Preliminary specification This data sheet contains target or goal specifications for product development This data sheet contains preliminary data supplementary data may be published later Product specification Limiting values This data sheet contains final product specifications Limiting values given are in accordance with the Absolute Maximum Rating System IEC 134 Stress above one or more of the limiting values may cause permanent damage to the device These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied Exposure to limiting values for extended periods may affect device reliability Application information Where application information is given it is advisory and does not form part of the specification LIFE SUPPORT APPLICATIONS These products are not designed for use in life support appliances devices or systems where malfunction of these products can reasonably be expected to result in personal injury 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 PURCHASE OF PHILIPS 12C COMPONENTS November 1985 Purchase of Phi
7. 50 C THERMAL RESISTANCE PARAMETER SYMBOL VALUE UNIT From junction to ambient in free air Rth j a 50 K W November 1985 6 Philips Semiconductors Product specification Switch for CTV receivers TDA8440 CHARACTERISTICS Tamb 25 C Vp 12 V unless otherwise specified PARAMETER SYMBOL MIN TYP MAX UNIT Supply Supply voltage Vi5 4 10 13 2 V Supply current without load l15 37 50 mA Video switch Input coupling capacitor C1C3 100 nF Voltage gain times 1 SCL L A3 16 1 0 1 dB times 2 SCL H A3 16 5 6 7 dB Voltage gain times 1 SCL L A1 16 1 0 1 dB times 2 SCL H A1 16 5 6 7 dB Input video signal amplitude gain times 1 V3 4 4 5 V Input video signal amplitude gain times 1 V4 4 4 5 V Output impedance Z16 4 7 Q Output impedance in OFF state Z16 4 100 kQ Isolation off state fo 5 MHz 60 dB Signal to noise ratio note 3 S S N 60 dB Output top sync level Vig a 2 4 2 8 3 2 V Differential gain G 3 Minimum crosstalk attenuation note 2 Vi6 4 60 dB Supply voltage rejection note 4 RR 36 dB Bandwidth 1 dB B 10 MHz Crosstalk attenuation for interference caused by bus signals source impedance 75 Q a 60 dB Audio switch a and b Input signal level V9 4 rms 2 V V10 4 rms gt 2 V V5 4 rms g g 2 V V7 4 rms 2 V Input impedance Z9 4 50 100 kQ Z10 4 50 100 kQ 25 4 50 100 kQ 27 4 50 100 kQ Ou
8. INTEGRATED CIRCUITS DATA SHEET TDA8440 Switch for CTV receivers Product specification November 1985 File under Integrated Circuits IC02 Philips PHILIPS Semiconductors Dp fal l L Philips Semiconductors Product specification Switch for CTV receivers TDA8440 GENERAL DESCRIPTION The TDA8440 is a versatile video audio switch intended to be used in CTV receivers equipped with an AUXILIARY VIDEO AUDIO plug It provides two 3 state switches for audio channels and one 3 state switch for the video channel and a video amplifier with selectable gain times 1 or times 2 The integrated circuit can be used in conjunction with a microcontroller from the MAB8400 family and is controlled via a bidirectional 1 C bus Sufficient sub addressing is provided for the I2C bus mode It can also be controlled directly by d c switching signals QUICK REFERENCE DATA Supply voltage range Supply current without load Storage temperature Operating ambient temperature range BUS Features e Combined analogue and digital circuitry gives maximum flexibility in channel switching 3 state switches for all channels Selectable gain for the video channels e Sub addressing facility e 2C bus or non I C bus mode controlled by d c voltages e Slave receiver in the 12C bus mode External OFF command e System expansion possible up to 7 devices 14 sources Static shor
9. lips I2C components conveys a license under the Philips 12C patent to use the components in the 12C system provided the system conforms to the I C specification defined by Philips This specification can be ordered using the code 9398 393 40011
10. s can be switched off mode high ohmic depending on the value of Do November 1985 5 Philips Semiconductors Product specification Switch for CTV receivers TDA8440 D OFF gating O off input active H OFF 0 in accordance with last defined D7 D may be entered while OFF HIGH 1 off input inactive H in accordance with D7 D4 1 in accordance with D7 D4 Power on reset The circuit is provided with a power on reset function When the power supply is switched on an internal pulse will be generated that will reset the internal memory So in the initial state all the switches will be in the off position and the OFF input is active D7 Do 0 12C mode position defined via SDA and SCL inputs non I2C mode When the power supply decreases below 5 V a pulse will be generated and the internal memory will be reset The behaviour of the switches will be the same as described above RATINGS Limiting values in accordance with the Absolute Maximum System IEC 134 MIN TYP MAX UNIT Supply voltage pin 15 Vp 14 V Input voltage range pin 17 Vspa 0 3 Vp 0 3 IV pin 18 VscL 0 3 Vp 0 3 IV pin2 Vorr 0 3 Vp 0 3 V pin 11 Vso 0 3 Vp 0 3 V pin 13 Vs 0 3 Vp 0 3 IV pin6 Vs2 0 3 Vp 0 3 V Video output current pin 16 lig 50 mA Storage temperature range Tstg 125 C Operating ambient temperature range Tamb 0 70 C Junction temperature Tj a 1
11. t circuit proof outputs V15 4 10 to 13 2 V typ 33 mA ls max 50 mA Tstg max 125 C Tamb Oto 70 C PACKAGE OUTLINE 18 lead DIL plastic SOT102 SOT102 1 1996 November 19 November 1985 Philips Semiconductors Product specification Switch for CTV receivers TDA8440 TDA8440 0 47 uF 9 AUDIO I bias j 2 AUDIO A OUT A 0 47 F D 1ko AUDIO Ta A 8 7 Aa 0 47 uF AUDIOI TKA b AUDIO B OUT c 0 47 uF sia TKA AUDIO Ip r 100 nF voer A VIDEO OUT 100nF a 750 VIDEO II 12C BUS RECEIVER 7280975 S0 S1 S2 and OFF pins 11 13 6 and 2 connected to Vp or GND If more than 1 device is used then the outputs and the pins 8 bias decoupling of the audio inputs may be connected in parallel Fig 1 Block diagram and test circuit November 1985 3 Philips Semiconductors Product specification Switch for CTV receivers TDA8440 FUNCTIONAL DESCRIPTION The TDA8440 is a monolithic system of switches and can be used in CTV receivers equipped with an AUXILIARY VIDEO AUDIO plug The IC incorporates 3 state switches they comprise a An electronic video switch with selectable gain times 1 or times 2 for switching between an internal video signal from the IF amplifier and an AUXILIARY input signal b Two electronic audio switches for two sound channels stereo or dual language for switching between internal audio sources and signals from the AUXILIARY VIDEO AUDIO plug
12. tput impedance Z12 4 10 Q Z14 4 10 Q Output impedance off state Z44 4 100 kQ November 1985 7 Philips Semiconductors Product specification Switch for CTV receivers TDA8440 PARAMETER SYMBOL MIN TYP MAX UNIT Voltage gain Vo 12 1 0 1 dB V10 12 0 1 dB V5 14 1 0 1 dB V7 44 1 0 1 dB Isolation off state f 20 kHz 90 dB Signal to noise ratio note 5 S S N 90 dB Total harmonic distortion note 7 THD 0 1 Crosstalk attenuation for interferences caused by video signals note 6 Weighted a 80 dB Unweighted a 80 dB Crosstalk attenuation for interferences caused by sinusoidal sound signals note 6 a 80 dB Crosstalk attenuation for interferences caused by the bus signal weighted source impedance 1 kQ 80 dB Supply voltage rejection RR 50 dB Bandwidth 1 dB B 50 kHz IC bus inputs outputs SDA pin 17 and SCL pin 18 Input voltage HIGH Vin 3 Vp V Input voltage LOW ViL 0 3 1 5 V Input current HIGH liH 10 uA Input current LOWO liL 5 10 uA Output voltage LOW at Io 3 mA VoL 0 4 V Maximum output sink current lot 5 mA Capacitance of SDA and SDL inputs pins 17 and 18 Ci 10 pF Sub address inputs So pin 11 S4 pin 13 S2 pin 6 Input voltage HIGH Vin 3 Vp V Input voltage LOW ViL 0 3 0 4 V Input current HIGH liH 10 uA Input current LOW liL 50 0 uA OFF input pin 2 Input voltage HIGH Vin 3
Download Pdf Manuals
Related Search