BA1450S [ROHM]
AM radio / FM IF stereo system IC; AM收音机/调频中频音响系统IC
| 型号： | BA1450S |
| 厂家： | 
ROHM |
| 描述： | AM radio / FM IF stereo system IC |
| 文件： | 总10页 (文件大小：182K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Audio ICs
AM radio / FM IF stereo system IC
BA1450S
The BA1450S is a tuner system IC for electronic tuning for AM radios, FM IF, and MPX. It has been developed for Hi-Fi
component applications.
The MPX VCO circuit requires no adjustment, which will enable a reduction in the number of production line processes.
In particular, the laser lock technique used in the VCO means that no external adjustment is required.
FApplications
Synthesized tuner for Hi-Fi components.
FFeatures
1) Built-in AM monaural radio, FM IF amplifier/detector,
and FM stereo demodulator.
6) Built-in forced monaural operation function for MPX
(VCO stops, and LED goes off).
2) DTS (both SD and IF count) compatible.
3) Built-in reference voltage power supply provides
good shortwave band frequency stability.
4) Good FM stability.
7) Low cutoff of audio is possible to improve AM fidelity.
8) MPX VCO stops in AM mode.
9) Audiomuting is possible when an IF request is made.
5) The FM MPX VCO uses laser locking making adjust-
ment and external components unnecessary.
FAbsolute maximum ratings (Ta = 25_C)
FRecommended operating conditions (Ta = 25_C)
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BA1450S
FBlock diagram
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BA1450S
FInput / output circuits
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BA1450S
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BA1450S
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BA1450S
FElectrical characteristics (unless otherwise noted, Ta = 25_C and VCC = 5V)
FM IF MPX signal source: fIN = 10.7MHz, modulation 1kHz, 75kHzdev (100%)
FM IF MPX signal source fIN = 10.7MHz, modulation 19kHz 7.5kHzdev (10%)
IF MPX signal sourceAM: fIN = 1000kHz, modulation 1kHz 30%
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BA1450S
FMeasurement circuit
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BA1450S
FApplication example
FElectrical characteristics curves
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BA1450S
FExternal dimensions (Units: mm)
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