Overview
The LA7567EV-A 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 5-V 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-A feature
improvements over the LA7567N and LA7567NM in the
audio and video signal-to-noise ratios and the video signal
amplitude.
Functions
[VIF]
VIF amplifier PLL detector BNC RF AGC
EQ amplifier AFT IF AGC Buzz canceller
[First SIF]
First SIF First SIF detector AGC
[SIF]
Multi-format SIF converter Limiter amplifier
PLL FM detector
Features
Both AFT and SIF inductors built in, thus making
adjustment of external inductance unnecessary.
A PAL/NTSC multi-format audio system can be
constructed easily.
Built-in buzz canceller for excellent audio performance.
VCC = 5 V, low power dissipation (250 mW)
Package Dimensions
unit: mm
3175B-SSOP24
1
7.6
7.8
0.5
5.6
0.1
1.5max
24
0.65
0.22
(0.33)
0.15
(1.3)
Monolithic Linear IC
12804TN (OT) No. 7704-1/15
SANYO: SSOP24 (275mil)
[LA7567EV-A]
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
TV and VCR VIF/SIF IF Signal-Processing Circuit with
PAL/NTSC Multi-Format Audio Support
LA7567EV-A
Ordering number : ENN7704
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.