la3401 Sanyo Semiconductor Corporation, la3401 Datasheet
la3401
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la3401 Summary of contents
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... Ordering number:ENN1868C Overview The LA3401 is a multifunctional MPX demodulator IC designed for FM stereo electronic tuning. It features the VCO non-adjusting function that eliminates the need to adjust free-running frequency of VCO and the accessory functions such as FM/AM input, FM/AM input changeover, muting. Applications • Home stereos, portable hi-fi sets. ...
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... (Note The signal voltage after separation adjust is measured The maximum voltage applied to pin 10 (FM/AM changeover voltage) is set Capture range is defined by : Capture range = Where F0 : Free-running frequncy F1 : Capture frequency when input frequency is changed. LA3401 ...
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... Test Circuit * : CSB456F 11typ (Murata) LPF : BL-13 (Korin Giken) amp : THE=0.005% max S/N, muting attenuation, crosstalk measurement=50dBmin, Other measurements than above=0dB LA3401 =1 V max, band width : 100kHz min, ri=330k max. NI No.1868–3/15 ...
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... used CBS456F11 (Murata) KBR-457HS (Kyocera) Sample Printed Circuit Pattern LA3401 µ µ µ No.1868–4/15 ...
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... – – LA3401 ...
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... Note for Using IC 1. Ceramic resonator (1) Shown below are ceramic resonators recommended for use in the LA3401. Type No. Supplier CSB456F11 Murata KBR-457HS Kyocera (2) By externally connecting a capacitor in parallel with a ceramic resonator, ceramic resonators shown below can be also used. ...
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... VCO stop mode is shown in Fig. 8. The voltage on pin 17 at the VCO stop mode increases with increasing R . The lower value on pin set by adding an increase in the voltage to the mini- mum value specified. LA3401 and limiting S must be set so that the S S No.1868–7/15 ...
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... Muting ON/OFF is allowed a hysteresis of approximately 6dB to prevent malfunction attributable to ripple in- cluded in the IF meter output, muting drive output. (3) Forced monaural in the muting mode By externally applying a specified voltage to pin 15 to select the muting mode, the forced monaural mode is automatically entered. LA3401 –3V to pin 15. CC No.1868–8/15 ...
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... Total gain : Value in monaural mode R1 · C15=R2 · C14= LA3401 µ ...
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... How to externd the dynamic range of the post amplifier In the Sample Application Circuit of the LA3401 the dynamic range of the post amplifier is extended by connecting resistors R12, R13 across the virtual GND points (pins the post amplifier and GND as shown in Fig set the output (pins voltages to an adequate value ...
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... VR1. The use of an antibirdie filter across the IF output and the FM input of the LA3401 may cause the sub signal level to be raised, and when the sub signal level is higher than the main signal level the separation cannot be adjusted with VR1 ...
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... LA3401 No.1868–12/15 ...
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... LA3401 No.1868–13/15 ...
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... LA3401 No.1868–14/15 ...
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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 January, 2000. Specifications and information herein are subject to change without notice. LA3401 PS No.1868–15/15 ...