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Table of contents for the manual
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Page 1
DA T A SH EET Preliminary specification File under Integrated Circuits, IC02 July 1992 INTEGRA TED CIRCUITS TDA8303 TDA8303A Small signal combination IC for black/white TV[...]
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Page 2
July 1992 2 Philips Semiconductors Preliminary specification Small signal combination IC for black/white TV TDA8303 TDA8303A FEA TURES • Video IF amplifier with synchronous demodulator • Automatic gain control (AGC) detector suitable for negative modulation • AGC tuner • Automatic frequency control (AFC) circuit with sample-and-hold • Vi[...]
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Page 3
July 1992 3 Philips Semiconductors Preliminary specification Small signal combination IC for black/white TV TDA8303 TDA8303A QUICK REFERENCE DA T A Notes to the quick reference data 1. Pin 11 has a double function. When during switch-on a current of 9 mA is supplied to this pin, it is used to start the horizontal oscillator. The main supply can th[...]
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Page 4
July 1992 4 Philips Semiconductors Preliminary specification Small signal combination IC for black/white TV TDA8303 TDA8303A Fig.1 Block diagram[...]
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Page 5
July 1992 5 Philips Semiconductors Preliminary specification Small signal combination IC for black/white TV TDA8303 TDA8303A PINNING AGC circuit The AGC circuit of the TDA8303/TDA8303A is a top-sync detector. The video signal coming from the video amplifier passes a 2nd order low-pass filter before it is compared with an internal reference level. [...]
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Page 6
July 1992 6 Philips Semiconductors Preliminary specification Small signal combination IC for black/white TV TDA8303 TDA8303A Narrow window mode: divider ratio between 522 and 528 (60 Hz); or 622 and 628 (50 Hz). • The divider system switches over to narrow window mode when the up/down counter has reached his maximum value of 15 approved vertical[...]
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Page 7
July 1992 7 Philips Semiconductors Preliminary specification Small signal combination IC for black/white TV TDA8303 TDA8303A CHARACTERISTICS V P = 12 V ;T amb = 25 ° C; carrier 38.9 MHz negative modulation, unless otherwise specified SYMBOL P ARAMETER CONDITIONS MIN. TYP . MAX. UNIT Supply (pin 7) V P supply voltage range 9.5 12 13.2 V I P suppl[...]
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Page 8
July 1992 8 Philips Semiconductors Preliminary specification Small signal combination IC for black/white TV TDA8303 TDA8303A S/N signal-to-noise ratio 10 mV input signal 50 57 − dB S/N signal-to-noise ratio end of gain control range 50 62 − dB V 17 residual carrier signal − 21 0 m V V 17 residual 2nd harmonic of carrier signal − 21 0 m V T[...]
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Page 9
July 1992 9 Philips Semiconductors Preliminary specification Small signal combination IC for black/white TV TDA8303 TDA8303A Sound circuit (note 12 ) V 15 input limiting voltage V O(max) = − 3 dB − 400 800 µ V R 15 input resistance − 2.6 − k Ω C 15 input capacitance − 6 − pF AMS AM suppression note 13 53 58 − dB V 12(RMS) AF outpu[...]
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Page 10
July 1992 10 Philips Semiconductors Preliminary specification Small signal combination IC for black/white TV TDA8303 TDA8303A S ECOND CONTROL LOOP ( POSITIVE EDGE ) control sensitivity note 22 − 100 − t d control range − 25 −µ s P HASE ADJUSTMENT ( VIA SECOND CONTROL LOOP ) control sensitivity − 25 −µ A/ µ s α maximum allowed phase[...]
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Page 11
July 1992 11 Philips Semiconductors Preliminary specification Small signal combination IC for black/white TV TDA8303 TDA8303A Notes to the characteristics 1. Pin 11 has a double function. When during switch-on a current of 9 mA is supplied to this pin, it is used to start the horizontal oscillator. The main supply can then be obtained from the hor[...]
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Page 12
July 1992 12 Philips Semiconductors Preliminary specification Small signal combination IC for black/white TV TDA8303 TDA8303A connected to the supply. The reference circuit must be tuned in such a way that the output is symmetrical clipping at maximum volume. 13. The test set-up is illustrated by Fig.6. The AM rejection curve (typical) is illustra[...]
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Page 13
July 1992 13 Philips Semiconductors Preliminary specification Small signal combination IC for black/white TV TDA8303 TDA8303A Fig.2 Video output signal. handbook, full pagewidth MLA667 100% 95% 30% 17.5% Fig.3 EBU test signal waveform (line 330). handbook, full pagewidth MBC211 100% 86% 72% 58% 44% 30% 64 60 56 52 48 44 40 36 32 22 12 10 26 µ s[...]
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Page 14
July 1992 14 Philips Semiconductors Preliminary specification Small signal combination IC for black/white TV TDA8303 TDA8303A Fig.4 Test set-up intermodulation. Input signal conditions SC = Sound carrier CC = Chrominance carrier PC = Picture carrier All with respect to top sync level Value a t 1 . 1 M H z : 2 0 l o g V O at 4.4 MHz V O at 1.1 MHz [...]
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Page 15
July 1992 15 Philips Semiconductors Preliminary specification Small signal combination IC for black/white TV TDA8303 TDA8303A Fig.5 Signal-to-noise ratio as a function of the input voltage (0 dB = 100 mV). Fig.6 Test set-up AM suppression.[...]
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Page 16
July 1992 16 Philips Semiconductors Preliminary specification Small signal combination IC for black/white TV TDA8303 TDA8303A Fig.7 AM suppression. Fig.8 Volume control characteristics.[...]
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Page 17
July 1992 17 Philips Semiconductors Preliminary specification Small signal combination IC for black/white TV TDA8303 TDA8303A Fig.9 Timing diagram.[...]
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Page 18
July 1992 18 Philips Semiconductors Preliminary specification Small signal combination IC for black/white TV TDA8303 TDA8303A T able 1 Switching levels coincidence detector CONDITION V 22 CONTROL SENSITIVITY HORIZONT AL OSCILLA TOR (kHz/ µ S) T2 - T1 T3 = SCAN V 22 > 6.7 V and strong signal 1 1.3 7.6 weak signal 1.3 1.3 1 < V 22 < 5.7 V [...]
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Page 19
July 1992 19 Philips Semiconductors Preliminary specification Small signal combination IC for black/white TV TDA8303 TDA8303A Fig.12 Application diagram.[...]
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Page 20
July 1992 20 Philips Semiconductors Preliminary specification Small signal combination IC for black/white TV TDA8303 TDA8303A P ACKAGE OUTLINE UNIT A max. 1 2 b 1 (1) (1) (1) cD E w eM H L REFERENCES OUTLINE VERSION EUROPEAN PROJECTION ISSUE DATE IEC JEDEC EIAJ mm inches DIMENSIONS (inch dimensions are derived from the original mm dimensions) SOT1[...]
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Page 21
July 1992 21 Philips Semiconductors Preliminary specification Small signal combination IC for black/white TV TDA8303 TDA8303A 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[...]