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U3665MM83, U3666, U3666M

Table of contents:
Info of U3665MM83
Info of U3666
Info of U3666M

U3665MM83, U3666, U3666M Selling Leads, Datasheet

MFG:tfk Package Cooled:tfk D/C:dc01

U3665MM83, U3666, U3666M Datasheet download

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Part Number: U3665MM83

MFG: tfk

Package Cooled: tfk

D/C: dc01

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U3666M General Description

The integrated delay line circuit U3666M is suitable forall chroma decoders with baseband color-differenceoutputs. It is suitable for PAL-, SECAM- andNTSC-signals as well. The U3666M contains twoseparate delay lines for processing (RY)-output and(BY)-output separately. The delay is performed by inter-nally switched capacitors. On-chip postfiltering avoidsthe need for external filter components. In the case of theU3666M, the postfilter is tuned to Bessel-characteristic.

A summing circuitry combines the information ofadjacent TV-lines, thus giving an interpolated sum for thePAL-system, storing preceeding lines for the SECAM-system and providing a comb-filtered output forNTSC-signals. Due to internally generated timing,synchronization is easily done by feeding a line-frequentimpulse (usually the SC-impulse) to the sync-input ofthe IC.

U3666M Maximum Ratings

Parameter	Symbol	Min	Typ	Max	Units
Supply voltage (Pin 9)	V_DD1	-0.5		+7	V
Supply voltage (Pin 1)	V_DD2	-0.5		+7	V
Voltage on Pins 5, 11, 12, 14 and 16	V_I	-0.3		VS	V
Output current, (Pin 11, Pin 12)	I_out			20	mA
Power dissipation	_P			1.1
Storage temperature range Electrostatic protection* for input/ output pins	Tstg	25		+150 500	°C V

U3666M Features

One line delay time, addition of delayed and non-delayed output signals
Adjustment-free application, VCO without external components
Handles negative or positive color-difference input signals
Improved latch-up stability
Improved power supply rejection ratio (PSRR)
No crosstalk between SECAM colorcarriers (diaphoty)
Comb-filtering functions for NTSC color-difference signals
Correction of phase errors in the PAL system

U3666M Typical Application

In TV sets, the integrated baseband delay line circuit is suitable for decoders with color-difference signal outputs

U3666M Connection Diagram

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