Stereo Preamplifier for Compact Double Cassette
Playback-only Use
Overview
The LA3246 is a stereo preamplifier IC for double cassette
tape playback-only use. The LA3246 is intended for use in
portable radio-cassette tape recorders and tape decks.
Applications
.
Stereo compact cassette player for playback-only use
.
Stereo cassette deck player
Functions
.
Preamplifier
× 2, Mixing amplifier × 1, Electronic switch × 6
Features
.
On-chip electronic switch for input select (auto reverse or
A deck/B deck select)
.
On-chip electronic switch for normal/higher dubbing select
and electronic switch for metal/normal tape select
.
Wide operating voltage range (VCC op = 3.5 to 14 V)
.
With output MIX pin (for music select control)
.
Low noise voltage range (VNI = 0.9 μV typ, Rg = 2.2 kΩ
NAB)
.
Can be used in conjunction with the LA3240, 3241, 3242 to
easily make up a doublecassette dubbing system.
Package Dimensions
unit : mm
3021B-DIP20
[LA3246]
SANYO : DIP20 (300 mil)
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VCC max
16
V
Allowable power dissipation
Pd max
500
mW
Operating temperature
Topr
–20 to +75
°C
Storage temperature
Tstg
–40 to +125
°C
Maxiumum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
VCC
6V
Operating voltage range
VCC op
3.5 to 14
V
Ordering number: EN 2651B
Monolithic Linear IC
LA3246
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
D3097HA(II)/41594HK/N107TA, TS No.2651-1/13