Ordering number : ENN6568
Monolithic Linear IC
LA1833N, 1833NM
System-on-Chip Tuner IC for Home Stereo Systems
Overview
The LA1833N/NM is an AM/FM IF and MPX system-on-
chip IC that supports electronic tuning for home stereo
systems. It is optimal for use in auto-seek systems that use
SD (station detect) and IF counting in parallel.
— FM total harmonic distortion detuning
characteristics and signal-to-noise ratio improved
over those of the LA1833
Package Dimensions
unit: mm
3112A-MFP24S
[LA1833N]
24
13
Functions
• AM: RF amplifier, mixer, oscillator, IF amplifier,
detector, AGC, SD, oscillator buffer, IF buffer, and
stereo IF output
• FM IF: IF amplifier, quadrature detector, S meter, SD,
S-curve detector, IF buffer
• MPX: PLL stereo decoder, stereo indicator, forced
mono, VCO stop, audio muting, adjacent channel
interference reduction function, pilot canceller
5.4
12.5
0.15
Features
• Improvements over the LA1832
— The MPX VCO circuit has been integrated on the
same IC (no ceramic element required)
— Built-in adjacent channel interference reduction
function (114 kHz, 190 kHz)
— Built-in pilot canceler function (19 kHz)
— AM and FM output levels can be set independently
— Improved FM reception characteristics (IF beating
improved)
• Other features
— Pin arrangement nearly identical to that of the
LA1832
— AM coil specifications can be the same as those used
for the LA1832.
— ST operating dynamic range improved over that of
the LA1833
0.35
1.0
SANYO: MFP24S (300 mil)
unit: mm
3067A-DIP24S
[LA1833NM]
21.0
24
13
7.62
6.4
0.1 1.5
(0.75)
0.63
1
12
1.7max
7.6
1
0.9
12
(0.71)
1.78
0.48
0.95
SANYO: DIP24S (300 mil)
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
D1500RM (OT) No. 6568-1/10
0.51min
3.3 3.9max
(3.25)
0.25
SANYO [ SANYO SEMICON DEVICE ]
