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INTEGRATED CIRCUITS
DATA SHEET
SAA5231 Teletext video processor
Product specification File under Integrated Circuits, IC02 November 1986
Philips Semiconductors
Product specification
Teletext video processor
GENERAL DESCRIPTION
SAA5231
The SAA5231 is a bipolar integrated circuit intended as a successor to the SAA5030. It extracts Teletext Data from the video signal, regenerates Teletext Clock and synchronizes the text display to the television syncs. The integrated circuit is intended to work in conjunction with CCT (Computer Controlled Teletext), EUROM or other compatible devices. Features * Adaptive data slicer * Data clock regenerator * Adaptive sync separator, horizontal phase detector and 6 MHz VCO forming display phase locked loop (PLL) QUICK REFERENCE DATA Supply voltage (pin 16) Supply current (pin 16) Video input amplitude (pin 27) (peak-to-peak value) pin 2 LOW pin 2 HIGH Storage temperature range Operating ambient temperature range PACKAGE OUTLINE 28-lead dual in-line; plastic (SOT117); SOT117-1; 1996 November 14 V27-13(p-p) V27-13(p-p) Tstg Tamb typ. typ. 1V 2,5 V 0 to + 70 C VCC ICC typ. typ. 12 V 70 mA
-20 to + 125 C
November 1986
2
k, full pagewidth
November 1986
sandcastle input pulse (PL/CBB) 24 PULSE GENERATOR HORIZONTAL PHASE DETECTOR 17 VOLTAGE CONTR. OSCILLATOR 6 MHz clock output (F6) 23 22 21 19 10 20 18 16 (VCR) VCC (+12 V) video recorder mode input
Philips Semiconductors
video composite sync output (VCS)
text composite sync input
25
Teletext video processor
(TCS) or scan composite sync input
28
(SCS)
SENSE 'NO INPUT'
SAA5231
ADAPTIVE DATA SLICER LATCHES 15
teletext data output (TTD)
composite video input DUAL POLARITY BUFFER CLOCK PHASE DETECTOR
27
ADAPTIVE SYNC SEPARATOR
26 SENSE 'NO LOAD' SENSE EXTERNAL DATA HF LOSS COMPENSATOR 3 4 1 5 6 8 7 9 PHASE SHIFTER
14
teletext clock output (TTC) 12
3
sync output external data input
GAIN SWITCH
OSCILLATOR /2 11 13
2
video input level select
MGH184
Product specification
SAA5231
Fig.1 Block diagram.
Philips Semiconductors
Product specification
Teletext video processor
PINNING
SAA5231
handbook, full pagewidth
sync output 1 video input level select 2 HF filter 3 store HF 4 store amplitude 5 store zero level 6 external data input 7
text composite sync input (TCS) or 28 scan composite sync input (SCS) 27 composite video input 26 black level 25 video composite sync output (VCS) 24 pulse timing capacitor 23 pulse timing resistor 22 sandcastle input pulse (PL/CBB)
SAA5231
data timing 8 store phase 9 VCR 10 crystal 11 clock filter 12 ground 13 clock output (TTC) 14
MGH185
21 filter 1 20 oscillator input 19 filter 2 18 oscillator output 17 6 MHz output (F6) 16 supply VCC 15 data output (TTD)
Fig.2 Pinning diagram.
RATINGS Limiting values in accordance with the Absolute Maximum System (IEC 134) Supply voltage (pin 16) Storage temperature range Operating ambient temperature VCC Tstg Tamb max. 13,2 V - 20 to + 125 C 0 to + 70 C
November 1986
4
Philips Semiconductors
Product specification
Teletext video processor
SAA5231
CHARACTERISTICS VCC = 12 V; Tamb = 25 C with external components as shown in application circuits unless otherwise stated. PARAMETER Supply (pin 16) Supply voltage Supply current Video input and sync separator Video input amplitude (sync to white) (peak-to-peak value) video input select level LOW (pin 2) video input select level HIGH (pin 2) Source impedance Sync amplitude (peak-to-peak value) Video input level select Input voltage LOW Input voltage HIGH Input current LOW Input current HIGH Text composite sync input (TCS) Input voltage LOW Input voltage HIGH Scan composite sync input (SCS) Input voltage LOW Input voltage HIGH Select video sync from pin 1 Input current (pin 28) at V28 = 0 to 7 V at V28 = 10 V to VCC Video composite sync output (VCS) Output voltage LOW Output voltage HIGH D.C. output current LOW D.C. output current HIGH Sync separator delay time V25-13 V25-13 I25 I25 td 0 2,4 - - 0,25 - - - - 0,35 0,4 5,5 0,5 -1,5 0,40 V V mA mA s I28 I28 -40 -5 -70 - -100 +5 A A V28-13 V28-13 0 3,5 - - 1,5 7,0 V V V28-13 V28-13 0 2,0 - - 0,8 7,0 V V V2-13 V2-13 I2 I2 0 2,0 0 0 - - - - 0,8 5,5 -150 1 V V A mA V27-13(p-p) V27-13(p-p) Zs V27-13(p-p) 0,7 1,75 - 0,1 1 2,5 - - 1,4 3,5 250 1 V V V VCC ICC 10,8 50 12,0 70 13,2 105 V mA SYMBOL MIN. TYP. MAX. UNIT
November 1986
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Philips Semiconductors
Product specification
Teletext video processor
SAA5231
PARAMETER Dual polarity buffer output TCS amplitude (peak-to-peak value) Video sync amplitude (peak-to-peak value) Output current D.C. output voltage RL to ground (0 V) RL to VCC (12 V) Sandcastle input pulse (PL/CBB) Phase lock pulse (PL) PL on (LOW) PL off (HIGH) Blanking pulse (CBB) CBB on (LOW) CBB off (HIGH) Input current Phase locked loop (PLL) Phase detector timing Pulse duration using composite video using scan composite sync time PL must be LOW to make VCO run-free 6 MHz clock output (F6) A.C. output voltage (peak-to-peak value) A.C. and d.c. output voltage range Rise and fall time Load capacitance Video recorder mode input (VCR) VCR-mode on (LOW) VCR-mode off (HIGH) Input current Data slicer Data amplitude of video input (pin 27) video input level select LOW (pin 2) video input level select HIGH (pin 2) tL tp tp
SYMBOL
MIN.
TYP.
MAX.
UNIT
V1-13(p-p) V1-13(p-p) I1 V1-13 V1-13
0,20 - -3 1,0 9,0
0,45 - - 1,4 10,1
0,65 1 +3 2,0 11,0
V V mA V V
V22-13 V22-13 V22-13 V22-13 I22
0 3,9 0 1,0 -10
- - - - -
3 5,5 0,5 5,5 + 10
V V V V A
2,0 3,0 100
2,4 3,5 -
2,8 4,0 -
s s s
V17-13(p-p) V17-13(max) tr; tf C17-13 V10-13 V10-13 I10
1 4 20 -
2 - - - - - -
3 8,5 40 40
V V ns pF
0 2,0 -10
0,8 VCC +10
V V A
V27-13 V27-13
0,30 0,75
0,46 1,15
0,70 1,75
V V
November 1986
6
Philips Semiconductors
Product specification
Teletext video processor
SAA5231
PARAMETER Teletext clock output A.C. output voltage (peak-to-peak value) D.C. output voltage (centre) Load capacitance Rise and fall times Delay of falling edge relative to other edges of TTD Teletext data output A.C. output voltage (peak-to-peak value) D.C. output voltage (centre) Load capacitance Rise and fall times APPLICATION INFORMATION
SYMBOL
MIN.
TYP.
MAX.
UNIT
V14-13(p-p) V14-13 CL tr; tf td
2,5 3,0 - 20 -20
3,5 4,0 - 30 0
4,5 5,0 40 45 +20
V V pF ns ns
V15-13(p-p) V15-13 CL tr; tf
2,5 3,0 - 20
3,5 4,0 - 30
4,5 5,0 40 45
V V pF ns
handbook, full pagewidth
47 F 3.3 k
47 nF 82
VCC
47 nF
47 nF
15 F
22 nF TCS
1.2 k
sandcastle input VCS F6
composite video input
2.2 F 68 nF 28 27 26 25 220 pF 24 23
68 k
50 H
(1)
TTD 10 pF 10 nF
22
21
20
19
18
17
16
15 27 pF 15 H
sync out 1 2 3 4 5 6
SAA5231 7 8 9 10 11 12 13 14
TTC 1.2 k video input level select 15 pF 1 nF 470 pF 22 nF data input 270 pF 100 pF XTAL 13.875 MHz 15 pF VCR
MGH189
(1) Coil: 50 H at 1 kHz, Co = 4 pF. Adjust the free-running frequency to 6000 kHz 30 kHz.
Fig.3 Application circuit using L/C circuit in PLL.
November 1986
7
Philips Semiconductors
Product specification
Teletext video processor
SAA5231
handbook, full pagewidth
VCC
47 nF
47 nF 15 F 22 nF TCS
1.2 k 6 MHz 18 pF 22 21 330 22 pF 19 18 17 16 15 27 pF 9 10 11 12 13 14
sandcastle input VCS F6 TTD 10 nF
composite video input
2.2 F 68 nF 28 27 26 25 220 pF 24 23
68 k
(1)
20
sync out 1 2 3 4 5 6
SAA5231 7 8
15 H
TTC 1.2 k video input level select 15 pF 1 nF 470 pF 22 nF data input 270 pF 100 pF 15 pF
MGH188
XTAL 13.875 MHz
(1) Quartz crystal e.g. catalogue number 4322 143 04101. Adjust the free-running frequency to 6000,2 kHz 0,2 kHz.
a. using quartz crystal in PLL
handbook, full pagewidth
10 F 470 3.3 k
220 nF
VCC
47 nF
47 nF
15 F
22 nF TCS
1.2 k 6 MHz 18 pF 22 21 330 22 pF 19 18 17 16 15 27 pF 9 10 11 12 13 14
sandcastle input VCS F6 TTD 10 nF
composite video input
2.2 F 68 nF 28 27 26 25 220 pF 24 23
68 k
(1)
20
sync out 1 2 3 4 5 6
SAA5231 7 8
15 H
TTC 1.2 k video input level select 15 pF 1 nF 470 pF 22 nF data input 270 pF 100 pF 15 pF
MGH187
XTAL 13.875 MHz
(1) Ceramic resonator e.g. Kyocera KBR 6,0 M. Adjust the free-running frequency to 6010 kHz 5 kHz.
b. using ceramic resonator in PLL. Fig.4 Application circuit
November 1986
8
Philips Semiconductors
Product specification
Teletext video processor
Component specifications Specifications of some external components in Figs 3, 4a and 4b. Quartz crystal 13,875 MHz; Figs 3, 4a and 4b. Load resonance frequency (f) 13,875 MHz; adjustment tolerance 40 x 10-6 Load capacitance (CL) 20 pF Temperature range (T) -20 to +70 C; frequency tolerance maximum 30 x 10-6 Resonance resistance (Rr) typical 10 maximum 60 Motional capacitance (C1) typical 19 fF Static parallel capacitance (Co) typical 5 pF Fixed inductance Figs 3, 4a and 4b. Inductance (L) 15 H 20% Quality factor (Q) minimum 20 Variable inductance Fig. 3 Inductance (L) 50 H at 1 kHz Static parallel capacitance (Co) typical 4 pF Quartz crystal Fig. 4a Preferred type 4322 143 04101 Load resonance frequency (f) 6 MHz; adjustment tolerance 40 x 10-6 Load capacitance (CL) 20 pF Temperature range (T) -20 to +70 C; frequency tolerance 30 x 10-6 Resonance resistance (Rr) 60 Motional capacitance (C1) typical 28 fF Static parallel capacitance (Co) typical 7 pF Ceramic resonator; Fig. 4b Preferred type KBR 6,0 M, Kyocera Load resonance frequency (f) 6 MHz; adjustment tolerance 0,5% Load capacitance (CL) 20 pF Temperature range (T) -20 to +70 C; frequency tolerance maximum 0,3% Resonance resistance (Rr) typical 6 Motional capacitance (C1) typical 9 pF Static parallel capacitance (Co) typical 60 pF Ageing (10 years) f maximum 0,3%
SAA5231
November 1986
9
Philips Semiconductors
Product specification
Teletext video processor
The function is quoted against the corresponding pin number. 1. Synch output to TV
SAA5231
Output with dual polarity buffer, a load resistor to 0 V or + 12 V selects positive-going or negative-going syncs. 2. Video input level select When this pin is LOW a 1 V video input level is selected. When the pin is not connected it floats HIGH selecting a 2,5 V video input level. 3. HF filter The video signal for the h.f.-loss compensator is filtered by a 15 pF capacitor connected to this pin. 4. Store h.f. The h.f. amplitude is stored by a 1 nF capacitor connected to this pin. 5. Store amplitude The amplitude for the adaptive data slicer is stored by a 470 pF capacitor connected to this pin. 6. Store zero level The zero level for the adaptive data slicer is stored by a 22 nF capacitor connected to this pin. 7. External data input Current input for sliced teletext data from external device. Active HIGH level (current), low impedance input. 8. Data timing A 270 pF capacitor is connected to this pin for timing of the adaptive data slicer. 9. Store phase The output signal from the clock phase detector is stored by a 100 pF capacitor connected to this pin. 10. Video tape recorder mode (VCR) Signal input to command PLL into short time constant mode. Not used in application circuit Fig.4a or Fig.4b. 11. Crystal A 13,875 MHz crystal, 2 x data rate, connected in series with a 15 pF capacitor is applied via this pin to the oscillator and divide-by-two to provide the 6,9375 MHz clock signal. 12. Clock filter A filter for the 6,9375 MHz clock signal is connected to this pin. 13. Ground (0 V) 14. Teletext clock output (TTC) Clock output for CCT (Computer Controlled Teletext). 15. Teletext data output (TTD) Data output for CCT. 16. Supply voltage VCC (+ 12 V typ.) 17. Clock output (F6) 6 MHz clock output for timing and sandcastle generation in CCT. 18. Oscillator output (6 MHz) A series resonant circuit is connected between this pin and pin 20 to control the nominal frequency of the VCO. 19. Filter 2 A filter with a short time constant is connected to this pin for the horizontal phase detector. It is used in the video recorder mode and while the loop is locking up.
November 1986
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Philips Semiconductors
Product specification
Teletext video processor
20. Oscillator input (6 MHz) See pin 18. 21. Filter 1 A filter with a long time constant is connected to this pin for the horizontal phase detector. 22. Sandcastle input pulse (PL/CBB) This input accepts a sandcastle waveform, which is formed from PL and CBB from the CCT. Signal timing is shown in Fig.5. 23. Pulse timing resistor The current for the pulse generator is defined by a 68 resistor connected to this pin. 24. Pulse timing capacitor The timing of the pulse generator is determined by a 220 pF capacitor connected to this pin. 25. Video composite sync output (VCS) The output signal is for CCT. 26. Black level
SAA5231
The black level for the adaptive sync separator is stored by a 68 nF capacitor connected to this pin. 27. Composite video input (CVS) The composite video signal is input via a 2,2 F clamping capacitor to the adaptive sync separator. 28. Text composite sync input (TCS)/Scan composite sync input (SCS) TCS is input from CCT or SCS from external sync circuit. SCS is expected when there is no load resistor at pin 1. If pin 28 is not connected the sync output on pin 1 will be the composite video input at pin 27, internally buffered.
handbook, full pagewidth
VIDEO SIGNAL (pin 27) 5V SANDCASTLE INPUT (pin 22) 2V 0V 0 1.5 4.7 8.5 33.5 t (s)
MGH186
Fig.5 Sandcastle waveform and timing.
November 1986
11
Philips Semiconductors
Product specification
Teletext video processor
PACKAGE OUTLINE
handbook, plastic dual in-line package; 28 leads (600 mil) DIP28: full pagewidth
SAA5231
SOT117-1
seating plane
D
ME
A2
A
L
A1 c Z e b1 b 28 15 MH wM (e 1)
pin 1 index E
1
14
0
5 scale
10 mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT mm inches A max. 5.1 0.20 A1 min. 0.51 0.020 A2 max. 4.0 0.16 b 1.7 1.3 0.066 0.051 b1 0.53 0.38 0.020 0.014 c 0.32 0.23 0.013 0.009 D (1) 36.0 35.0 1.41 1.34 E (1) 14.1 13.7 0.56 0.54 e 2.54 0.10 e1 15.24 0.60 L 3.9 3.4 0.15 0.13 ME 15.80 15.24 0.62 0.60 MH 17.15 15.90 0.68 0.63 w 0.25 0.01 Z (1) max. 1.7 0.067
Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT117-1 REFERENCES IEC 051G05 JEDEC MO-015AH EIAJ EUROPEAN PROJECTION
ISSUE DATE 92-11-17 95-01-14
November 1986
12
Philips Semiconductors
Product specification
Teletext video processor
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 with the joint for more than 5 seconds. The total contact time of successive solder waves must not exceed 5 seconds. DEFINITIONS Data sheet status Objective specification Preliminary specification Product specification Limiting values
SAA5231
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.
November 1986
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