TDA4472-MFLG3 TEMIC [TEMIC Semiconductors], TDA4472-MFLG3 Datasheet

no-image

TDA4472-MFLG3

Manufacturer Part Number
TDA4472-MFLG3
Description
Video-IF and Quasi Parallel Sound Processing
Manufacturer
TEMIC [TEMIC Semiconductors]
Datasheet
TELEFUNKEN Semiconductors
Rev. A2, 15-Oct-96
Video-IF and Quasi Parallel Sound Processing
Description
The TDA4472 is an integrated bipolar circuit for video/
sound IF (VIF/SIF) signal processing in TV/VCR and
multimedia applications. The circuit processes all TV
Features
D
D
D
D
D
D
D
Ordering Information
5 V supply voltage; low power consumption
Active carrier generation by FPLL principle
(frequency-phase-locked-loop) for true
synchronous demodulation
Very linear video demodulation, good pulse response
and excellent intermodulation figures
VCO circuit operates at picture carrier frequency
Alignment-free AFC without external reference
circuit, polarity of the AFC curve is switchable
VIF-AGC with peak sync. detection
Tuner AGC with adjustable take over point
Extended Type Number
TDA4472-MFLG3
TDA4472-MSD
Preliminary Information
Package
SDIP28
SO28
video IF signals with negative modulation (e.g., B/G
standard), and the FM/NICAM sound IF signals.
D
D
D
D
D
Package: SDIP28, SO28
Alignment-free quasi parallel sound (QPS) mixer for
FM/NICAM sound IF signals
Intercarrier output signal is gain controlled (necessary
for digital sound processing)
Separate SIF-AGC with average detection
Two independent SIF inputs
Package and relevant pinning is compatible with the
multistandard version TDA4470, which simplifies the
design of an universal IF module
Delivery in taped form
TDA4472-M
Remarks
1 (14)

Related parts for TDA4472-MFLG3

TDA4472-MFLG3 Summary of contents

Page 1

... AFC curve is switchable D VIF-AGC with peak sync. detection D Tuner AGC with adjustable take over point Ordering Information Extended Type Number TDA4472-MSD TDA4472-MFLG3 TELEFUNKEN Semiconductors Rev. A2, 15-Oct-96 Preliminary Information TDA4472-M video IF signals with negative modulation (e.g., B/G standard), and the FM/NICAM sound IF signals. D ...

Page 2

... TDA4472-M Block Diagram Offset comp. (optional) 26 Ï Ï FPL L VIF amp 6 Ï VIF Ï Ï AGC 8 AGC Ï (VIF) 11 Ï Tuner Tuner Ï Ï 10 AGC Take over point 27 Ï 28 SIF 2 Ï 3 Input switch Ï Ï 1 Ï Ï Ï SIF 1 2 Ï ...

Page 3

... VCO signal. The video demodulator is TELEFUNKEN Semiconductors Rev. A2, 15-Oct-96 Preliminary Information TDA4472-M designed for low distortion and large bandwidth. The demodulator output signal passes an integrated low pass filter for attenuation of the residual vision carrier and is fed to the video amplifier. The video amplifier is realized by an operational amplifier with internal feedback and 8 MHz bandwidth (– ...

Page 4

... TDA4472-M Pin Description i,SIF1 i,SIF1 GND AGC i,VIF i,VIF AGC 9 20 GND top tun o,vid 8835 Figure 2. Pinning 4 (14) Preliminary Information Pin Symbol V i,SIF2 SIF1 ...

Page 5

... Equivalent to discharging a 200 pF capacitor trough a 0 Operating Range Parameters Supply voltage range Pin 23 SDIP28 package SO28 package Ambient temperature Thermal Resistance Parameters Junction ambient, when soldered to PCB SDIP28 package SO28 package TELEFUNKEN Semiconductors Rev. A2, 15-Oct-96 Preliminary Information TDA4472-M Symbol Value 840 P 560 ...

Page 6

... TDA4472-M Electrical Characteristics +25 C; reference point Pin 4 (9, 16), unless otherwise specified S amb Parameters DC-supply Supply voltage – SDIP28 – SO28 Supply current VIF-input Input sensitivity, (RMS value) For FPLL locked Input impedance See note 1 Input capacitance See note 1 VIF-AGC ...

Page 7

... AFC Pin Pin 1-2, 27- Pin AGC Pin 24 see note out = out = 10 mV kHz; S/N S/N S/N RR Pin 3 TDA4472-M Min. Typ. Max. Unit 2 deg 400 mV 600 0.7 A/kHz 0.25 0.6 % –0.4 ...

Page 8

... TDA4472-M Parameters Control voltage: – input 1 active See note 9 – input 2 active Switching current Notes 1.) This parameter is given as an application information and not tested during production. 2.) In VCR mode the VIF- and SIF path is switched off. 3.) Adjustment of turn over point (delayed tuner AGC) with external resistor R 4 ...

Page 9

... External L/C circuit (VCO: 38.9 MHz) with TOKO coil 7KM, 292 XNS – 4051Z TELEFUNKEN Semiconductors Rev. A2, 15-Oct-96 Preliminary Information Figure 4. Basic application circuit TDA4472-M 9 (14) ...

Page 10

... TDA4472-M Internal Pin Configuration 8521 Figure 5. Sound IF inputs (Pin 1-2, 27-28) 3 8522 Figure 6. Input selector switch (Pin 3) 5 Figure 7. SIF-AGC time constant (Pin 5) 10 (14) Preliminary Information 4.2 V Figure 8. Video IF input (Pin 6-7) 8 Figure 9 ...

Page 11

... Figure 11. Tuner AGC – output (Pin 11) 2 8528 Figure 12. Video output (Pin 12) 3.5 V Figure 13. Internal reference voltage (Pin 17) TELEFUNKEN Semiconductors Rev. A2, 15-Oct-96 Preliminary Information TDA4472-M Figure 14. Loop filter (Pin 18 8533 Figure 15. AFC switch (Pin 19 8534 94 8531 Figure 16 ...

Page 12

... TDA4472-M 94 8535 Figure 17. AFC output (Pin 22) W 100 8536 Figure 18. Intercarrier output (Pin 24) 12 (14) Preliminary Information 3 8538 Figure 19. VCO offset compensation (Pin 26) TELEFUNKEN Semiconductors Rev. A2, 15-Oct-96 ...

Page 13

... Dimensions in mm Package: SDIP28 Package: SO28 TELEFUNKEN Semiconductors Rev. A2, 15-Oct-96 Preliminary Information TDA4472-M 95 10610 95 10610 95 9932 13 (14) ...

Page 14

... TDA4472-M Ozone Depleting Substances Policy Statement It is the policy of TEMIC TELEFUNKEN microelectronic GmbH to 1. Meet all present and future national and international statutory requirements. 2. Regularly and continuously improve the performance of our products, processes, distribution and operating systems with respect to their impact on the health and safety of our employees and the public, as well as their impact on the environment ...

Related keywords