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INTEGRATED CIRCUITS
DATA SHEET
TDA8440 Switch for CTV receivers
Product specification File under Integrated Circuits, IC02 November 1985
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 I2C bus. Sufficient sub-addressing is provided for the I2C bus mode. It can also be controlled directly by d.c. switching signals.
Features * Combined analogue and digital circuitry gives maximum flexibility in channel switching * 3-state switches for all channels * Selectable gain for the video channels * Sub-addressing facility * I2C bus or non-I2C bus mode (controlled by d.c. voltages) * Slave receiver in the I2C bus mode * External OFF command * System expansion possible up to 7 devices (14 sources) * Static short-circuit proof outputs
QUICK REFERENCE DATA Supply voltage range Supply current (without load) Storage temperature Operating ambient temperature range PACKAGE OUTLINE 18-lead DIL; plastic (SOT102); SOT102-1; 1996 November 19. V15-4 I15 Tstg Tamb 10 to 13,2 V typ. max. max. 33 mA 50 mA + 125 C
0 to + 70 C
November 1985
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Philips Semiconductors
Product specification
Switch for CTV receivers
TDA8440
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
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Philips Semiconductors
Product specification
Switch for CTV receivers
FUNCTIONAL DESCRIPTION
TDA8440
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. 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 S0 (pin 11), S1 (pin 13), and S2 (pin 6) are used for selection of sub-addresses or switching to the non-I2C mode. Inputs S0, S1 and S2 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 S2 L L L L H H H H NON-I2C BUS CONTROL If the TDA8440 switching device has to be operated via the AUXILIARY VIDEO/AUDIO plug, inputs S2, S1 and S0 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: * Sources I are selected if SDA = 12 V (external source) * Sources II are selected if SDA = 0 V (TV mode) * Video amplifier gain is 2 x if SCL = 12 V (external source) * Video amplifier gain is 1 x if SCL = 0 V (TV mode) If more than one TDA8440 device is used in the non-I2C 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. * All switches are in the OFF position if OFF = H (12 V) * All switches are in the selected position via SDA and SCL pins if OFF = L (0 V) S1 L L H H L L H H S0 L H L H L H L H A2 0 0 0 0 1 1 1 non I2C A1 0 0 1 1 0 0 1 addressable A0 0 1 0 1 0 1 0
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Philips Semiconductors
Product specification
Switch for CTV receivers
I2C BUS CONTROL Detailed information on the I2C bus is available on request. Table 2 STA TDA8440 I2C bus protocol. A6 A5 A4 A3 A2 A1 A0 R/W AC D7 D6 D5 D4 D3 D2 D1 D0
TDA8440
AC
STO
STA A6 A5 A4 A3 A2 A1 A0 R/W AC D7 D7 D6 D6 D5 D5 D4 D4 D3 D3 D2 D2 D1 D1 D0 D0 STO
= = = = = = = = = = = = = = = = = = = = = = = = = = =
start condition 1 0 0 1 Fixed address bits Fixed address bits Fixed address bits Fixed address bits
sub-address bit, fixed via S2 input sub-address bit, fixed via S1 input sub-address bit, fixed via S0 input read/write bit (has to be 0, only write mode allowed) acknowledge bit (= 0) generated by the TDA8440 1 audio la is selected to audio output a 0 audio la is not selected 1 audio lla is selected to audio output a 0 audio lla is not selected 1 audio lb is selected to audio output b 0 audio lb output is not selected 1 audio llb is selected to audio output b 0 audio llb is not selected 1 video l is selected to video output 0 video l is not selected 1 video ll is selected to video output 0 video ll is not selected 1 video amplifier gain is times 2 0 video amplifier gain is times 1 1 OFF-input inactive 0 OFF-input active stop condition
OFF FUNCTION With the OFF input all outputs can be switched off (mode high ohmic), depending on the value of D0.
November 1985
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Philips Semiconductors
Product specification
Switch for CTV receivers
D0/OFF gating D0 0 (off input active) 0 1 (off input inactive) 1 Power-on reset The circuit is provided with a power-on reset function. H L H L OFF INPUT OFF OUTPUTS
TDA8440
in accordance with last defined D7 - D1 (may be entered while OFF = HIGH) in accordance with D7 - D1 in accordance with D7 - D1
When the power supply is switched on an internal pulse will be generated that will reset the internal memory S0, in the initial state all the switches will be in the off position and the OFF input is active (D7 - D0 = 0) (I2C 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. Supply voltage Input voltage range pin 15 pin 17 pin 18 pin 2 pin 11 pin 13 pin 6 Video output current Storage temperature range Operating ambient temperature range Junction temperature THERMAL RESISTANCE PARAMETER From junction to ambient in free air Rth j-a SYMBOL 50 VALUE UNIT K/W pin 16 Tstg Tamb Tj VP VSDA VSCL VOFF VS0 VS1 VS2 -I16 - -0,3 -0,3 -0,3 -0,3 -0,3 -0,3 - - 0 - - - - - - - - - - - - MAX. 14 UNIT V
VP + 0,3 V VP + 0,3 V VP + 0,3 V VP + 0,3 V VP + 0,3 V VP + 0,3 V 50 + 125 + 70 + 150 mA C C C
November 1985
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Philips Semiconductors
Product specification
Switch for CTV receivers
CHARACTERISTICS Tamb = 25 C; VP = 12 V; unless otherwise specified PARAMETER Supply Supply voltage Supply current (without load) Video switch Input coupling capacitor Voltage gain (times 1; SCL = L) (times 2; SCL = H) Voltage gain (times 1; SCL = L) (times 2; SCL = H) Input video signal amplitude (gain times 1) Input video signal amplitude (gain times 1) Output impedance Output impedance in `OFF' state Isolation (off state) (fo = 5 MHz) Signal-to-noise ratio (note 3) Output top-sync level Differential gain Minimum crosstalk attenuation (note 2) Supply voltage rejection (note 4) Bandwidth (1 dB) Crosstalk attenuation for interference caused by bus signals (source impedance 75 ) Audio switch a and b Input signal level V9-4(rms) V10-4(rms) V5-4(rms) V7-4(rms) Input impedance Z9-4 Z10-4 Z5-4 Z7-4 Output impedance Output impedance (off state) Z12-4 Z14-4 Z14-4 - - - - 50 50 50 50 - - 100 - - - - 100 100 100 100 - - - 2 2 2 2 - - - - 10 10 - 60 - - S/S + N V16-4 G V16-4 RR B C1C3 A3-16 A3-16 A1-16 A1-16 V3-4 V1-4 Z16-4 Z16-4 100 -1 +5 -1 +5 - - - 100 60 60 2,4 - 60 36 10 - 0 +6 0 +6 - - 7 - - - 2,8 - - - - - V15-4 I15 10 - - 37 SYMBOL MIN. TYP.
TDA8440
MAX.
UNIT
13,2 50
V mA
nF dB dB dB dB V V k dB dB V % dB dB MHz
+1 +7 +1 +7 4,5 4,5 - - - - 3,2 3 - - -
dB
V V V V k k k k k
November 1985
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Philips Semiconductors
Product specification
Switch for CTV receivers
TDA8440
PARAMETER Voltage gain
SYMBOL V9-12 V10-12 V5-14 V7-14 -1 -1 -1 -1 90 S/S + N THD 90 -
MIN. 0 0 0 0 - - -
TYP.
MAX. +1 +1 +1 +1 - - 0,1
UNIT dB dB dB dB dB dB %
Isolation (off state) (f = 20 kHz) Signal-to-noise ratio (note 5) Total harmonic distortion (note 7) Crosstalk attenuation for interferences caused by video signals (note 6) Weighted Unweighted Crosstalk attenuation for interferences caused by sinusoidal sound signals (note 6) Crosstalk attenuation for interferences caused by the bus signal (weighted) (source impedance = 1 k) Supply voltage rejection Bandwidth (-1 dB) I2C bus inputs/outputs SDA (pin 17) and SCL (pin 18) Input voltage HIGH Input voltage LOW Input current Input current HIGH(1) LOW(1) VIH VIL IIH IIL VOL IOL CI RR B
80 80
- -
- -
dB dB
80
-
-
dB
80 50 50
- - -
- - -
dB dB kHz
3 -0,3 - - - - -
- - - - - 5 - - - - - - - - -
VP + 1,5 10 10 0,4 - 10
V V A A V mA pF
Output voltage LOW at IOL = 3 mA Maximum output sink current Capacitance of SDA and SDL inputs, pins 17 and 18 Sub-address inputs S0 (pin 11), S1 (pin 13), S2 (pin 6) Input voltage HIGH Input voltage LOW Input current HIGH Input current LOW OFF input (pin 2) Input voltage HIGH Input voltage LOW Input current HIGH Input current LOW
VIH VIL IIH IIL VIH VIL IIH IIL
3 -0,3 - -50 +3 -0,3 - -10
VP + 0,4 10 0
V V A A
VP + 0,4 20 2
V V A A
November 1985
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Philips Semiconductors
Product specification
Switch for CTV receivers
TDA8440
PARAMETER Bus free before start(11) Start condition set-up time Start condition hold time SCL, SDA LOW period 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.
SYMBOL tBUF ts(STA) th(STA) tLOW tHIGH tr tf ts(DAT) th(DAT) ts(CAC) th(CAC) ts(STO) 4 4 4 4 4 - - 1 1 - 0 4
MIN. - - - - - - - - - - - -
TYP. - - - - - 1
MAX.
UNIT s s s s s s s s s s s s
0,3 - - 2 - -
2. Caused by drive on any other input at maximum level, measured in B = 5 MHz, source impedance for the used input 75 , V out crosstalk = 20 log --------------------V IN max 3. V O video noise (p-p) (2 V) S/N = 20 log ---------------------------------------------------------------------- . V O noise rms B = 5 MHz
V r supply 4. Supply voltage ripple rejection = 20 log -------------------------------- at f = max. 100 kHz. V r on output 5. V O nominal (0,5 V) S/N = 20 log ------------------------------------------------------ . V O 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 k, V out crosstalk = 20 log -------------------- according to DIN 45405 (CCIR 468). V in max 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. Timings tS, DAT and tH, DAT deviate from the I2C bus specification. After reset has been activated, transmission may only be started after a 50 s delay. 11. I2C bus load conditions are as follows: 4k pull-up resistor to + 5 V; 200 pF to GND. All values are referred to VIH = 3 V and VIL = 1,5 V.
November 1985
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Philips Semiconductors
Product specification
Switch for CTV receivers
TDA8440
Fig.2 Timing diagram I2C bus.
November 1985
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Philips Semiconductors
Product specification
Switch for CTV receivers
PACKAGE OUTLINE DIP18: plastic dual in-line package; 18 leads (300 mil)
TDA8440
SOT102-1
D seating plane
ME
A2
A
L
A1
c Z e b1 b 18 10 b2 MH wM (e 1)
pin 1 index E
1
9
0
5 scale
10 mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT mm inches A max. 4.7 0.19 A1 min. 0.51 0.020 A2 max. 3.7 0.15 b 1.40 1.14 0.055 0.044 b1 0.53 0.38 0.021 0.015 b2 1.40 1.14 0.055 0.044 c 0.32 0.23 0.013 0.009 D (1) 21.8 21.4 0.86 0.84 E (1) 6.48 6.20 0.26 0.24 e 2.54 0.10 e1 7.62 0.30 L 3.9 3.4 0.15 0.13 ME 8.25 7.80 0.32 0.31 MH 9.5 8.3 0.37 0.33 w 0.254 0.01 Z (1) max. 0.85 0.033
Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT102-1 REFERENCES IEC JEDEC EIAJ EUROPEAN PROJECTION
ISSUE DATE 93-10-14 95-01-23
November 1985
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Philips Semiconductors
Product specification
Switch for CTV receivers
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. 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 Data sheet status Objective specification Preliminary specification Product specification Limiting values
TDA8440
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 up to 5 seconds.
This data sheet contains target or goal specifications for product development. This data sheet contains preliminary data; supplementary data may be published later. 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 I2C COMPONENTS
Purchase of Philips I2C components conveys a license under the Philips' I2C patent to use the components in the I2C system provided the system conforms to the I2C specification defined by Philips. This specification can be ordered using the code 9398 393 40011.
November 1985
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