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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 ...

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SeekIC No. : 004534813 Detail

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 si...

U3666M Data Sheet

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Part Number:
U3666M
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



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


Application

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


Pinout

Connection Diagram


Specifications

Parameter

Symbol

 

Min

 

 

Typ

Max

Units

Supply voltage (Pin 9)

VDD1

-0.5

 

+7

V

Supply voltage (Pin 1)

VDD2

-0.5

 

+7

V

Voltage on Pins 5, 11, 12, 14 and 16

VI

-0.3

 

VS

V

Output current, (Pin 11, Pin 12)

Iout

 

 

20

mA

Power dissipation

P

 

 

1.1

Storage temperature range
Electrostatic protection* for input/ output pins

Tstg

25

 

+150
500

°C
V




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 of U3666M 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 U3666M is easily done by feeding a line-frequentimpulse (usually the SC-impulse) to the sync-input ofthe IC.




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