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LA7577 데이터시트(PDF) 1 Page - Sanyo Semicon Device

부품명 LA7577
상세설명  Super-split PLL-II VIF and SIF IF Signal Processor for TV/VTRs
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제조업체  SANYO [Sanyo Semicon Device]
홈페이지  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LA7577 데이터시트(HTML) 1 Page - Sanyo Semicon Device

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LA7577N
SANYO Electric Co., Ltd. Semiconductor Business Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
60597HA(ID) / 11795TH(ID) No. 4037—1/16
Ordering number: EN 4037C
Monolithic Linear IC
Super-split PLL-II VIF and SIF
IF Signal Processor for TV/VTRs
Overview
The LA7577N is a high tone quality and high picture qual-
ity, video IF and sound IF IC. It employs split processing
of the video IF signal and sound IF signal using SAW fil-
ters and a PLL detector. Further, the PLL detector incorpo-
rates a buzz canceler for Nyquist buzz interference
suppression to achieve high tone quality.
Functions
VIF stage
• VIF amplifier
• PLL detector
• B/W noise canceler
• RF AGC
• VCO
• Equalizer amplifier
• AFT
• APC detector
• APC filter
• Lock detector
• IF AGC
• Buzz canceler
1st SIF stage
• Preamplifier with AGC
• 1st SIF detector
SIF stage
• SIF limiter amplifier
• FM quadrature detector
Mute stage
• Sound mute (pin 2)
• AV mute (pin 4)
• IS-15 switch (pin 13)
Features
• Employs split processing for wide bandwidth video
characteristics
• PLL detector with buzz canceler for excellent buzz and
buzz beat characteristics
• APC time constant switch built-in
• High-speed AGC supports double time constant method
• SIF carrier level AGC in the 1st SIF stage for good SIF
weak electric field characteristics
• Good differential gain and phase characteristics
• RF AGC easily adjusted using a variable resistor
Package Dimensions
unit: mm
3067-DIP24S
[LA7577N]
Specifications
Absolute Maximum Ratings at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VCC max
13.8
V
Allowable power dissipation
Pd max
Ta
≤ 50°C
1200
mW
Circuit voltages
V3, V13
VCC
V
V11
VCC
V
V23
VCC
V


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