la3450 Sanyo Semiconductor Corporation, la3450 Datasheet
la3450
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la3450 Summary of contents
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... PLL FM MPX Stereo Demodulator with Adjustment-Free VCO Overview The LA3450 is a multifunctional, high-performance FM multiplex demodulator IC designed for high-grade FM ste- reo tuner use. The LA3450 features adjustment-free VCO, measure against adjacent channel interference, pilot can- celer, low distortion (0.005%), and high S/N (101dB). Applications • ...
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... The capture range is represented by the value in 19kHz equivalent. (Note 2) : The low-pass filter used to measure electrical characteristics must have 19kHz attenuation of –90dB or more negative value of dB and 38kHz attenuation of –70dB or more negative value of dB. (Note carefull that the combination of pin 22 LA3450 ...
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... LA3450 ...
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... C Sample Application Circuit (1) Input separation 0. CSB456F11 (Murata) KBR-457HS (Kyocera Input pilot level 20mV or greater : 0.47 F 14mV or greater : 0.22 F 8mV or greater : C3=0.1 F, R1=6.8k , C4=0. Input separation (sub signal/main signal) 0.92 (f=1kHz) How to Make Single Adjustmet of Separation LA3450 ...
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... Sample Application Circuit (2) Input separation 0. CSB456F11 (Murata) KBR-457HS (Kyocera Input pilot level 20mV or greater : 0.47 F 14mV or greater : 0.22 F 8mV or greater : C3=0.1 F, R1=6.8k , C4=0. Input separation (sub signal/main signal) 0.92 (f=1kHz) How to Make Single Adjustmet of Separation LA3450 No.2393–5/15 ...
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... For the separation adjusting method when the input separation is more than 0.92, see Sample Application Circuit (2). (Note 1) In this Sample Application Circuit, the DC voltage on pins 11 almost equal to that on pin 27 and no DC cut capacitor (C8 in Sample Application Circuint ( required. LA3450 No.2393–6/15 ...
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... Note differs with set models. Capacitor used to phase the sub signal of the decoder with the reproduction sub signal in the PLL. Note 2 : C20 to 21 are set to the optimum value according to each set mode. Note 3 : The LPF input resistor value is 3.3k or greater. LA3450 Value 100 to 1000pF Inprovement in stereo low-frequency distortion (Note1) 0 ...
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... Sample Printed Circuit Pattern Proper Cares in Applications 1. Ceramic resonator Shown below are ceramic resonators recommended for use in the LA3450 and their suppliers. CSB456F11 Murata KBR-457HS Kyocera 2. Loop filter constants Loop filter constants (C3, C4, R1) connected to pins 3, 4 must be set to the optimum value according to an input pilot level ...
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... The level at pins 18 approximately 4V (p-p) when the typical constants are used in the Sample Application Circuit and the output level becomes approxi- mately 4X20/ (Rx+20) V (p-p) by connecting Rx. LA3450 Fig. 3. OSC Level Variable pin). The relation CC No.2393– ...
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... Total gain : At monaural mode, R4 · C12=R5 · C11= Table 2. Feedback resistance of post amplifier and of total gain, de-emphasis constants 10. Low-pass filter Figs show a sample circuit configuration and characteristic of the low-pass filter. Fig. 5 Sample Circuit of LC Filter LA3450 : Capable of being drawn to the outside ...
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... Note : As the use of this low-pass filter makes the attenuation less at 19kHz, 38kHz, carrier leak at the LPF output causes the stereo distortion and separation characteristics to get worse than specified in the Electric Character- istics. For example, the stereo distortion becomes approximately 0.5% due to carrier leak. LA3450 No.2393–11/15 ...
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... LA3450 No.2393–12/15 ...
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... LA3450 No.2393–13/15 ...
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... LA3450 No.2393–14/15 ...
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... 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 February, 2000. Specifications and information herein are subject to change without notice. LA3450 PS No.2393–15/15 ...