LA1824 Sanyo Semiconductor Corporation, LA1824 Datasheet

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LA1824

Manufacturer Part Number
LA1824
Description
Single Chip Tuner IC for Use in Radio/Cassette Products with Manual Tuning
Manufacturer
Sanyo Semiconductor Corporation
Datasheet

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Part Number:
LA1824
Manufacturer:
SANYO/三洋
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Part Number:
LA1824
Manufacturer:
SANYO
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Ordering number : ENN*6855
Preliminary
Overview
The LA1824 is a single-chip tuner IC that incorporates
FM/AM and MPX circuits.
The built-in MPX-VCO allows this IC to be adjustment free
and to require no external components.
Features
Functions
Specifications
Maximum Ratings at Ta = 25 C
Recommended Operating Conditions at Ta = 25 C
Maximum supply voltage
Indicator drive current
Allowable power dissipation
Operation temperature
Ambient temperature
Recommended supply voltage
Operation supply voltage range
FM, AM and MPX integrated in a single-chip.
Adjustment free MPX-VCO
: No ceramic resonator used.
FM front-end : Local OSC voltage reduced.
FM stereo and FM/AM tuning indicator
output provided.
Package : DIP-24S.
FM
AM : RF amplifier, mixer, oscillator (with ALC),
MPX : PLL stereo decoder, stereo indicator, VCO on chip, forced monaural.
: RF amplifier, mixer, oscillator, IF amplifier,
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.
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.
detector, signal meter, tuning indicator.
IF amplifier, detector, AGC, tuning indicator.
Parameter
Parameter
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
SANYO Electric Co.,Ltd. Semiconductor Company
in Radio/Cassette Products with Manual Tuning
V CC max
Symbol
Symbol
V CC op
Pd max
I LED
Topg
V CC
Tstg
Pin 8, 9
Ta
70 C
LA1824
Conditions
Conditions
Package Dimensions
unit : mm
3067A
(0.71)
Single Chip Tuner IC for Use
24
1
0.9
1.78
0.48
21.0
[LA1824]
0.95
SANYO : DIP - 24S(300mil)
Ratings
Ratings
13
12
11201 RM (IM)
Monolithic Linear IC
--40 to +125
- -20 to +70
2.5 to 6.0
LA1824
300
7.0
4.5
20
No.6855-1/10
Unit
mW
Unit
mA
V
V
V
C
C

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LA1824 Summary of contents

Page 1

... Ordering number : ENN*6855 in Radio/Cassette Products with Manual Tuning Preliminary Overview The LA1824 is a single-chip tuner IC that incorporates FM/AM and MPX circuits. The built-in MPX-VCO allows this adjustment free and to require no external components. Features FM, AM and MPX integrated in a single-chip. • Adjustment free MPX-VCO • ...

Page 2

... Total harmonic distortion (main) AM characteristics 1000 kHz kHz modulation Parameter Quiescent current Detector output Signal-to-noise ratio Total harmonic distortion Station detector sensitivity LA1824 Symbol Conditions No input, fosc = 108.7 MHz, the pin 20 output V OSC with FET buffer gain · = · --10 dB Referenced EMF L.S. ...

Page 3

... Block Diagram LA1824 ILA00376 No.6855-3/10 ...

Page 4

... Sample Application Circuit Diagram 3.3k LA1824 22pF ILA00377 No.6855-4/10 ...

Page 5

... GND 1 pin7 ILA00381 FM-IF filter : SFE10.7MS2 (Murata) • AM-IF filter : SFU450B (Murata) • Poly-varicon : FT-2217 (Toko) • MW Bar-antenna : C8E-A0105 (Toko) • PVC GND pin1 pin2 ILA00384 LA1824 : A119ACS-19458X (Toko 0.12UEW 10.7 MHz 1 pin5 100 pF internal : A119ACS-19459Z (Toko) pin13 3 1 0.10UEW ...

Page 6

... Function voltage (V) number AM 1 AM-RF input 1.3 2 Reg 1.3 3 AM-OSC 4 4.5 5 FM-MIX output 4.5 6 GND1 0 7 AM-MIX output 4.5 LA1824 Equivalent circuit FM 1 1 4.5 4 4.5 ILA00385 4.5 Remarks 2 Connect the AM antenna coil between this pin and pin 2 (Reg) ILA00307 ...

Page 7

... AM 8 Tuning indicator 4.5 Stereo 9 indicator and 4 output 10 FM-IF input 1.3 11 AM-IF input 1.3 AM-AGC output and 12 0.7 FM signal meter output 13 FM-DET 4.5 LA1824 Equivalent circuit FM 8 4.5 ILA00387 9 4.5 ILA00388 10 1.3 Rin 2 ILA00314 11 1.3 Rin 2 ILA00315 0 ILA00316 13 4.5 ...

Page 8

... Phase 15 comparator filter 0 (AM/FM switch output 1 output 18 MPX input 1.3 AM/FM 19 detector 0.5 output 20 FM-OSC 4.5 LA1824 Equivalent circuit FM 14 3.8 ILA00318 15 3.8 ILA00319 1.4 Rout ( ILA00320 18 1.3 Rin ILA00321 Rout(FM) 19 1.5 Rout(AM) ILA00322 21 20 4.4 ILA00323 ...

Page 9

... Signal --20 --40 -- =4.5V --80 fc=98MHz fm=1kHz, 22.5kHz dev AM=30%mod --100 -- Ant input -- dB V EMF AM Characteristics =4.5V fc=1000kHz fm=1kHz, 30%mod --20 --40 --60 --80 --100 Ant input -- dB/m LA1824 Equivalent circuit 4.4 24 1.0 Rin out 2 Noise 1 0 100 120 140 --20 ILA00390 Noise 1 0 100 ...

Page 10

... SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of January, 2001. Specifications and information herein are subject to change without notice. LA1824 ...

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