LA7567EV Datasheet, PDF (1/21 Pages) Sanyo Semicon Device – TV and VCR VIF/SIF IF Signal-Processing Circuit with PAL/NTSC Multi-Format Audio Support

Ordering number : ENN7779A
SANYO Semiconductors
DATA SHEET
Monolithic Linear IC
LA7567EV TV and VCR VIF/SIF IF Signal-Processing Circuit
with PAL/NTSC Multi-Format Audio Support
Overview
The LA7567EV is PAL/NTSC multi-format audio VIF/SIF IF ICs that adopt a semi-adjustment-free system. The VIF
block adopts a technique that makes AFT adjustment unnecessary by adjusting the VCO, thus simplifying the
adjustment steps in the manufacturing process. PLL detection is adopted in the FM detector to support multi-format
audio detection. A built-in SIF converter is included to simplify multi-format system designs. A 5V power-supply
voltage is used to match that used in most multimedia systems. In addition, these ICs also include a buzz canceller to
suppress Nyquist buzz and provide high audio quality. The LA7567EV feature improvements over the LA7567N and
LA7567NM in the audio and video signal-to-noise ratios and the video signal.
Functions
• VIF block: VIF amplifier, PLL detector, BNC, RF AGC, EQ amplifier, AFT, IF AGC, buzz canceller.
• First SIF block: first SIF, first SIF detector, AGC.
• SIF block: multi-format SIF converter, limiter amplifier, PLL FM detector.
Features
• No AFT or SIF coils are required, making these circuits adjustment free.
• A PAL/NTSC multi-format audio system can be constructed easily.
• Built-in buzz canceller for excellent audio performance.
• VCC = 5V, low power dissipation (250mW)
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Maximum supply voltage
Circuit voltage
Circuit current
Allowable power dissipation
VCC max
V13, V17
I6
I10
I24
Pd max
Ta ≤ 70°C, when mounted on a PCB*
Operating temperature
Topr
Storage temperature
Tstg
*: Printed circuit board: 114.3mm × 76.1mm × 1.6mm, glass epoxy board.
Ratings
Unit
6
V
VCC
V
–3
mA
–10
mA
–2
mA
400
mW
–20 to +70
°C
–55 to +150
°C
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft's
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
81505MS OT B8-7701 No.7779-1/21