LA1823 Sanyo Semiconductor Corporation, LA1823 Datasheet

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LA1823

Manufacturer Part Number
LA1823
Description
Single-Chip Tuner IC for Use in Radio Cassette Recorder
Manufacturer
Sanyo Semiconductor Corporation
Datasheet

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Ordering number : EN6854A
LA1823
LA1823M
Overview
Features
Functions
Specifications
Maximum Ratings at Ta = 25°C
Maximum supply voltage
Indicator drive current
Allowable power dissipation
Operating temperature
Storage temperature
The LA1823 and the LA1823M are single-chip tuner ICs that incorporate FM/AM and MPX circuits and support
electronic tuning. The built-in MPX-VCO allows these ICs to be adjustment-free and to require no external components.
• AM, FM frontend/IF and MPX integrated in a single-chip.
• Built-in MPX VCO circuit
• Electronic tuning (AM oscillator output, AM/FM IF output)
• Adjustment-free FM detection (uses a ceramic discriminator)
• Packages : DIP24S (300mil)
AM
FM-RF : RF amplifier, mixer, and oscillator.
FM-IF : IF amplifier, quadrature detector, S-meter, and IF counter buffer output.
MPX
: RF amplifier, mixer, oscillator, oscillator buffer, IF amplifier, detector, AGC, IF count buffer output.
: PLL stereo decoder, stereo indicator, forced monaural, VCO on chip, Audio mute.
Parameter
Any and all SANYO Semiconductor 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 Semiconductor representative
nearest you before using any SANYO Semiconductor products described or contained herein in such
applications.
SANYO Semiconductor 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 Semiconductor
products described or contained herein.
MFP24S (300mil) [LA1823M]
[LA1823]
V CC max
Symbol
Pd max
I LED
Topr
Tstg
Monolithic Linear ICs
Single-Chip Tuner ICs
for Use in Radio Cassette Recorder
Pin 8
Ta ≤ 70°C
Conditions
N1506 MS PC B8-8120, B8-5863 No.6854-1/12
Ratings
-40 to +125
-20 to +70
300
7.0
20
Unit
mW
mA
°C
°C
V

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LA1823 Summary of contents

Page 1

... LA1823 LA1823M Overview The LA1823 and the LA1823M are single-chip tuner ICs that incorporate FM/AM and MPX circuits and support electronic tuning. The built-in MPX-VCO allows these ICs to be adjustment-free and to require no external components. Features • AM, FM frontend/IF and MPX integrated in a single-chip. ...

Page 2

... Total harmonic distortion THD OSC buffer output V OSC buff IF count buffer on level IF buff on IF count buffer output V IF buff LA1823, LA1823M Conditions Conditions No. input, fosc = 108.7MHz, the pin 20 output Referenced to 22.5kHz dev, a 3dB down input The pin 16 output The pin 16 output ...

Page 3

... Package Dimensions unit : mm (typ) 3067B 21 0.95 0.9 (0.71) 1.78 0.48 3112B 12 1.0 0.35 (0.75) SANYO : MFP24S(300mil) LA1823, LA1823M [LA1823 SANYO : DIP24S(300mil) [LA1823M] 0.15 No.6854-3/12 ...

Page 4

... Block Diagram LA1823, LA1823M No.6854-4/12 ...

Page 5

... Sample Application Circuit Diagram FM-DET 3.3kΩ FM-OSC 12pF SVC201 FM-RF 8pF 0.047µF 1000pF SVC201 LA1823, LA1823M 100pF 470pF AM-OSC No.6854-5/12 ...

Page 6

... Measurement Circuit Diagram CDA10.7MG1 3.3kΩ SA-151 12pF SVC201 SA-149 8pF 0.047µF 1000pF SVC201 LA1823, LA1823M 100pF 100kΩ 470pF SA-181 No.6854-6/12 ...

Page 7

... AM-MIX : SA-1136 (Sumida pin9 GND S • AM-IF filter : SFU450B (Murata) • MW Bar-antenna : C8E-A0105 (Toko GND Pin1 Pin2 LA1823, LA1823M : L7BRS-3132AQ (Toko) 6-4 37T S 3-1 74T VC 3 0.06UEW fo = 796kHz Qo ≥ 140µH 1 GND : PCFAZ-082 (Toko) 3-2 122T 4 2-1 62T 0.06UEW fo = 450kHz, Qo ≥ 65 ...

Page 8

... 4.5 5 FM-MIX output 2.4 6 GND1 buffer output 4.5 and mute switch LA1823, LA1823M Remarks FM 1.2 Connect the AM antenna coil between this pin and pin 2 (Reg) 1.2 4.5 Connect the AM oscillator coil between this pin and pin 4.5 AM/FM-IF/MPX block V CC 2.2 Rout = 270Ω ...

Page 9

... FM-IF input 1.2 11 AM-IF input 1.2 12 AM-AGC output 0.4 and FM signal meter output 13 FM-DET 3.9 LA1823, LA1823M Remarks FM 4.5 Active-low Open-collector output AM oscillator signal is output in AM mode 4.5 Connect the AM mixer coil between this pin and pin 1.2 Rin = 330Ω 1.2 Rin = 2kΩ ...

Page 10

... R output 18 MPX input 1.2 19 AM/FM detector 0.3 output 20 FM-OSC 4.5 LA1823, LA1823M Remarks FM 3.8 Forced monaural mode when pin 14 is connected to ground 3.8 FM mode is when pin 15 is open, and AM mode is when pin 15 is connected to ground 1.2 Rout = 7.5kΩ 1.2 Rin = 50kΩ ...

Page 11

... Input – dB/m LA1823, LA1823M Remarks FM 4.4 FM-FE block V CC Power is supplied from pin via external resistor (10Ω) 4.4 Connect the FM-RF coil between this pin and pin 0.9 Rin = 1.8kΩ 0 FM-FE block ground ...

Page 12

... This catalog provides information as of November, 2006. Specifications and information herein are subject to change without notice. LA1823, LA1823M FM Stereo Characteristics =4.5V fc=98MHz, Vin=60dBµV EMF ...

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