TDA3825 Philips Semiconductors, TDA3825 Datasheet

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TDA3825

Manufacturer Part Number
TDA3825
Description
Quasi split-sound circuit and AM demodulator
Manufacturer
Philips Semiconductors
Datasheet
Objective specification
File under Integrated Circuits, IC02
DATA SHEET
TDA3845; TDA3845T
Quasi split-sound circuit and AM
demodulator
INTEGRATED CIRCUITS
January 1993

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TDA3825 Summary of contents

Page 1

DATA SHEET TDA3845; TDA3845T Quasi split-sound circuit and AM demodulator Objective specification File under Integrated Circuits, IC02 INTEGRATED CIRCUITS January 1993 ...

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... Philips Semiconductors Quasi split-sound circuit and AM demodulator FEATURES Power supply from 5 V (200 mW source also an alternative 12 V source (12 V not for TDA3845T) Gain controlled wideband IF amplifier (AC coupled with three stages) High precision internal 90 phase shifter for quadrature demodulator Amplitude detector for gain control which operates as a ...

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... Philips Semiconductors Quasi split-sound circuit and AM demodulator (1) See note 10 to the characteristics. (2) Not for TDA3845T, pin 11 not connected. January 1993 Fig.1 Block diagram. 3 Objective specification TDA3845; TDA3845T ...

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... Philips Semiconductors Quasi split-sound circuit and AM demodulator (1) not for TDA3845T, pin 11 not connected. Fig.2 Pin configuration. LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC134) SYMBOL supply voltage V pin pin 11 (not for TDA3845T operating ambient temperature amb T storage temperature ...

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... Philips Semiconductors Quasi split-sound circuit and AM demodulator CHARACTERISTICS (note 11 all measurements are referenced to ground (pin 13); unless otherwise specified. P1 amb SYMBOL PARAMETER Supply supply voltage V pin pin 11 (not for TDA3845T total supply current tot IF amplifier ...

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... Philips Semiconductors Quasi split-sound circuit and AM demodulator SYMBOL PARAMETER AF signal performance (note 8) (S +W)/W black picture (S +W)/W 2T/20T pulses with white bars (S +W)/W 6 kHz sinewave (black-to-white modulation) (S +W)/W 250 kHz square wave (black-to-white modulation) AM mode (standard L) note 9 S/N weighted in accordance with CCIR 468-3 ...

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... Philips Semiconductors Quasi split-sound circuit and AM demodulator SYMBOL PARAMETER AM mode (standard L) note 9 S/N weighted in accordance with CCIR 468 output signal (RMS value) 6(RMS bandwidth AF THD total harmonic distortion (S +W)/W signal-to-weighted-noise ratio R output resistance potential 6 I permissible AC output current 6(peak) ...

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... Philips Semiconductors Quasi split-sound circuit and AM demodulator Notes to the characteristics 1. Start of gain control (LOW IF input signal intercarrier signal reduction at pin 12, AGC mode set signal reduction at pin 6, AGC mode set to AM. 2. End of gain control (HIGH IF input signal intercarrier signal expansion at pin 12, AGC mode set signal expansion at pin 6, AGC mode set to AM ...

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... Philips Semiconductors Quasi split-sound circuit and AM demodulator 8. For all S/N measurements the used vision IF modulator must conform to the following: Incidental phase modulation for black-to-white jump should be less than 0.5 degrees. Intercarrier performance, measured with the television demodulator AMF2 (intercarrier mode weighted S/N ratio) better than 60 dB for 6 kHz sinewave black-to-white video modulation ...

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... Philips Semiconductors Quasi split-sound circuit and AM demodulator (1) See note 5 to the characteristics. (1) See note 5 to the characteristics. Fig.4 Test circuit for the +12 V supply; not for TDA3845T. January 1993 Fig.3 Test circuit for the +5 V supply. 10 Objective specification TDA3845; TDA3845T ...

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... Philips Semiconductors Quasi split-sound circuit and AM demodulator APPLICATION INFORMATION (1) See note 5 to the characteristics. Fig.5 Application diagram for the +12 V supply; not for TDA3845T. (1) See note 5 to the characteristics. January 1993 Fig.6 Application diagram for the +5 V supply. 11 Objective specification ...

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... Philips Semiconductors Quasi split-sound circuit and AM demodulator Fig filter for standard L. IF filter proposal for AM sound (see Figs 7 and 8) With an IF filter in accordance with this proposal, the video buzz suppression on the audio output is better than 50 dB (in accordance with CCIR 468- 54%) for the worst case video modulation with 6 kHz sinewave black-to-white. ...

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... Philips Semiconductors Quasi split-sound circuit and AM demodulator January 1993 TDA3845; TDA3845T 13 Objective specification ...

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... Philips Semiconductors Quasi split-sound circuit and AM demodulator Picture modulation; 6 kHz sinewave. Intercarrier signal; sound Channel 1 = 5.5 MHz, sound Channel 2 = 5.74 MHz. Fig.10 Response curve of the signal-to-weighted noise ratio of the demodulated intercarrier signal. 2 handbook, full pagewidth THD (%) Fig.11 Response curve for the total harmonic distortion of the AM signal. ...

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... Philips Semiconductors Quasi split-sound circuit and AM demodulator PACKAGE OUTLINES DIP16: plastic dual in-line package; 16 leads (300 mil); long body pin 1 index 1 DIMENSIONS (inch dimensions are derived from the original mm dimensions UNIT max. min. max. 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. ...

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... Philips Semiconductors Quasi split-sound circuit and AM demodulator SO16: plastic small outline package; 16 leads; body width 3 pin 1 index 1 DIMENSIONS (inch dimensions are derived from the original mm dimensions) A UNIT max. 0.25 1.45 mm 1.75 0.25 0.10 1.25 0.0098 0.057 inches 0.069 0.01 0.0039 0.049 Note 1. Plastic or metal protrusions of 0.15 mm maximum per side are not included. ...

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... Philips Semiconductors Quasi split-sound circuit and AM demodulator 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 ...

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... Philips Semiconductors Quasi split-sound circuit and AM demodulator DEFINITIONS Data sheet status Objective specification This data sheet contains target or goal specifications for product development. Preliminary specification This data sheet contains preliminary data; supplementary data may be published later. Product specification This data sheet contains fi ...

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