DatasheetsPDF.com

LC89950

Sanyo
Part Number LC89950
Manufacturer Sanyo
Description 1H Delay Line
Published Apr 25, 2005
Detailed Description Ordering number : EN*5440 MOS LSI LC89950 1H Delay Line for PAL Systems Preliminary Overview The LC89950 is an IC that...
Datasheet PDF File LC89950 PDF File

LC89950
LC89950

Overview
Ordering number : EN*5440 MOS LSI LC89950 1H Delay Line for PAL Systems Preliminary Overview The LC89950 is an IC that provides 1H delay processing for color difference signals used in PAL and SECAM format TV.
The LC89950 has two CCD systems, one for the R-Y and one for the B-Y signal, and drives these CCDs with a 4-MHz clock generated within the IC.
It uses a sandcastle-shaped three-value input clock with a 1 H (64 µs) period.
• Auto-bias and input clamping circuits • 4-MHz output circuit Package Dimensions unit: mm 3003A-DIP14 [LC89950] Features • 5-V single-voltage power supply • Two input and output systems, one each for R-Y and BY signals • Takes a sandcastle pulse (SCP) as the input clock, and converts that to a burst gate pulse (BGP) signal internally.
• Generates the CCD drive pulses (4 MHz) from the input clock using a PLL circuit.
• Uses BGP as clamp pulses and clamps the no signal section (back porch) once every horizontal scan period.
• The output signal is in-phase with the input signal SANYO: DIP14 Functions • • • • • Two on-chip 254.
5-bit CCD shift registers CCD drive circuits Sample-and-hold circuit Burst gate pulse detection circuit 256 × PLL circuit Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Supply voltage Allowable power dissipation Operating temperature Storage temperature Symbol VDD Pd max Topr Tstg Conditions Ratings –0.
3 to +6.
0 450 –10 to +60 –55 to +125 Unit V mW °C °C Allowable Operating Ranges at Ta = 25°C Parameter Supply voltage Input signal amplitude Symbol VDD VINPP(R-Y) VINPP(B-Y) Conditions min 4.
75 typ 5.
0 500 500 max 5.
25 700 700 Unit V mV mV SANYO Electric Co.
,Ltd.
Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg.
, 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN D3097HA(OT) No.
5440-1/5 LC89950 Electrical Characteristics at Ta = 25°C, VDD = 5.
0 V, Fscp = 15.
625 kHz Switch States Parameter Current drain Output pin voltage (pin 1) Output pin voltage (pin 3) Input pin voltage (pin 7) Input p...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)