LA7567N Datasheet, PDF (1/14 Pages) Sanyo Semicon Device – TV and VCR VIF/SIF IF Signal-Processing Circuit with PAL/NTSC Multi-Format Audio Support

Ordering number : EN5765
Monolithic Linear IC
LA7567N, 7567NM
TV and VCR VIF/SIF IF Signal-Processing Circuit with
PAL/NTSC Multi-Format Audio Support
Overview
The LA7567N and LA7567NM are 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.
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
Package Dimensions
unit: mm
3067-DIP24S
[LA7567N]
unit: mm
3112-MFP24S
[LA7567NM]
SANYO: DIP24S
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.
• V_CC = 5 V, low power dissipation (250 mW)
Specifications
Maximum Ratings at Ta = 25°C
SANYO: MFP24S
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
Circuit voltage
V_CC max
V13, V17
I6
6
V
V_CC
V
–3
mA
Circuit current
I10
–10
mA
I24
–2
mA
Allowable power dissipation
Pd max
TA ≤ 50°C, Independent IC [LA7567NM]
*: Mounted on a printed circuit board
TA ≤ 70°C, Independent IC [LA7567N]
420
mW
720
mW
500
mW
Operating temperature
Topr
–20 to +70
°C
Storage temperature
Tstg
–55 to +150
°C
Note: When mounted on a 65 × 72 × 1.6 mm paper/phenolic resin printed circuit board.
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
50698RM (OT) No. 5765-1/14