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Sanyo LA1245 free download

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File name:la1245.pdf
[preview LA1245]
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Mfg:Sanyo
Model:LA1245 🔎
Original:LA1245 🔎
Descr:AM electronic tuner
Group:Electronics > Components > Integrated circuits
Uploaded:09-03-2004
User:plamensl
Multipart:No multipart

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File name la1245.pdf

Ordering number : EN737F Monolithic Linear IC LA1245 AM Electronic Tuner Overview Package Dimensions LA1245 is a high performance IC to be used as an AM unit : mm electronic tuner. It provides an automatic search-stop 3021B-DIP20S signal, local oscillator buffer-output, and the low level local oscillation, as well as providing all other functions required of an AM tuner. Moreover, the stable local oscillation from LW to SW facilitates the use of many band. [LA1245] Functions · RF amplifier · MIX · OSC (with ALC) · Detection · IF amplifier · AGC · Local oscillation buffer-output · Signal meter driving output (also used as an automatic search stop-signal) · etc. SANYO: DIP20S Features · Narrow-band signal meter · Local oscillation buffer-output · OSC (with ALC) · RF amplifier · MIX · Low noise · Compensation for VCC fluctuation · Low shock noise : Available as an automatic search-stop signal (also available as a wide-band signal meter). Signal meter output=1/2 frequency ±1.5kHz typ. : Facilitates the design of electronic tuning systems and frequency representation. : The oscillation output is stabilized at a low level (350 mVrms) for a varactor diode, and tracking error is minimized. : Excellent in usable sensitivity by incorporating low-noise transistors in cascode circuit (45dB/m typ). : Double balanced differential MIX prevents the influence of spurious radiation and IF interferences (IF interference = 85dB typ). : Excellent in S/N for intermediate input (57dB typ). : Allows little gain fluctuation and little distoriton fluctuation (8 to 16 V). : Able to decrease the shock noise by selecting AGC time constant when changing VCC-on and/or switching the mode. SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 63097HA (KOTO)/33194HO/N050JK/8044KI,TS3173KI/O020KI No.737-1/11 LA1245 Specifications Maximum Ratings at Ta=25°C Parameter Supply voltage Output voltage Input voltage Supply current Output high drive current Allowable power dissipation Operating temperature Storage temperature Parameter Recommended supply voltage Symbol VCCmax Vo VI ICCmax I18 I20 Pd max Topr Tstg Symbol VCC Conditions Pin 8, 14 Pin 5, 7 Pin 3 Pin 5+7+8+14 Pin 18 Pin 20 See Figure 2 Conditions Ratings 16 24 5.6 32 5 2 700 ­20 to +70 ­40 to +125 Ratings 12 Unit V V V mA mA mA mA °C °C Unit V Recommended Operating Conditions at Ta=25°C Operating Characteristics at Ta=25°C, VCC=12V, fr=1MHz, fm=400Hz, at specified test circuit (based on application circuit). Parameter Current drain Detection output Signal to noise ratio Total harmonic distortion Signal meter output Input at signal meter output=1V Local oscillation-buffer output Symbol ICC1 ICC2 Vo1 Vo 2 S/N1 S/N2 THD1 THD2 VSM1 VSM3 VIN1 Vosc quiescent 107 dBµ input 23 dBµ input, mod. 30% 80 dBµ input, mod. 30% 23 dBµ input, mod. 30% 80 dBµ input, mod. 30% 80 dBµ input, mod. 30% 107 dBµ input, mod. 30% quiescent 107 dBµ input VSM out

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