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LA1776M Scheda tecnica(PDF) 4 Page - Sanyo Semicon Device |
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LA1776M Scheda tecnica(HTML) 4 Page - Sanyo Semicon Device |
4 / 41 page No.8085-4/41 LA1776M Operating Characteristics at Ta = 25°C, VCC= 8.0V, with the specified test circuit and for standards other than Sanyo's for the FM IF input Continued on next page. Ratings Parameter Symbol Conditions min typ max unit [FM Characteristics] At the FM IF input Current drain ICCO-AM No input, I9 + I40 + I46 + I54 + I59 + I60 + I61 78 93 112 mA Demodulation output VO-FM 10.7 MHz, 100dBµ, 1 kHz, 100%mod, The pin 15 output 205 310 415 mVrms Pin 31 demodulation output VO-31 10.7 MHz, 100dBµ, 1 kHz, 100%mod, The pin 31 output 190 295 380 mVrms Channel balance CB The ratio between pins 15 and 16 at 10.7 MHz, 100 dBµ, 1 kHz –1 0 +1 dB Total harmonic distortion THD-FM mono 10.7 MHz, 100 dBµ, 1 kHz, 100% mod, pin 15 0.3 1 % Signal-to-noise ratio: IF S/N-FM IF 10.7 MHz, 100 dBµ, 1 kHz, 100% mod, pin 15 68 76 dB AM suppression ratio: IF AMR IF 10.7 MHz, 100 dBµ, 1 kHz, fm = 1 kHz, 30% AM, pin 15 55 68 dB Att-1 10.7 MHz, 100 dBµ, 1 kHz. The pin 15 5 10 15 dB attenuation when V33 goes from 0 to 2 V Muting attenuation Att-2 10.7 MHz, 100 dBµ, 1 kHz. The pin 15 16 21 26 dB attenuation when V33 goes from 0 to 2 V*1 Att-3 10.7 MHz, 100 dBµ, 1 kHz. The pin 15 26 31 36 dB attenuation when V33 goes from 0 to 2 V*2 Separation Separation 10.7 MHz, 100 dBµ, L+R = 90%, pilot = 10%. The pin 15 output 30 40 dB ratio Stereo on level ST-ON The pilot modulation such that V39< 0.5 V 2.3 3.5 5.5 % Stereo off level ST-OFF The pilot modulation such that V39> 3.5 V 0.6 1.6 % Main total harmonic distortion THD-Main L 10.7 MHz, 100 dBµ, L+R = 90%, pilot = 10%. The pin 15 signal 0.3 1.2 % Pilot cancellation PCAN 10.7 MHz, 100 dBµ, pilot = 10%. 20 30 dB The pin 15 signal/the pilot level leakage. DIN audio SNC output attenuation AttSNC 10.7 MHz, 100 dBµ, L-R = 90%, pilot = 10%. 4 8 12 dB V28 = 3 V → 0.6 V, pin 15 AttHCC-1 10.7 MHz, 100 dBµ, 10 kHz, L+R = 90%, pilot = 10%. 2 6 10 dB HCC output attenuation V29 = 3 V → 0.6 V, pin 15 AttHCC-2 10.7 MHz, 100 dBµ, 10 kHz, L+R = 90%, 7 11 15 dB pilot = 10%. V29 = 3 V → 0.1 V, pin 15 Input limiting voltage Vi-lim 100 dBµ, 10.7 MHz, 30% modulation. The IF input such 35 42 49 dBµ that the input reference output goes down by 3 dB Muting sensitivity Vi-mute The IF input level (unmodulated) when V33 = 2 V 45 53 61 dBµ SD-sen1 FM The IF input level (unmodulated) (over 100 mV rms) 72 80 88 dBµ SD sensitivity such that the IF counter buffer output goes on SD-sen2 FM Unmodulated IF input such that the SD pin goes to the on state 72 80 80 dBµ IF counter buffer output VIFBUFF-FM 10.7 MHz, 100 dBµ, unmodulated. The pin 23 output 150 230 300 mVrms VSM FM-1 No input. The pin 24 DC output, unmodulated 0.1 0.3 V Signal meter output VSM FM-2 60 dBµ. The pin 24 DC output, unmodulated 0.6 1.2 1.8 V VSM FM-3 80 dBµ. The pin 24 DC output, unmodulated 2.0 2.7 3.5 V VSM FM-4 110 dBµ. The pin 24 DC output, unmodulated 4.5 5.2 5.9 V Muting bandwidth BW-mute 100 dBµ. The bandwidth when V33 = 2 V, unmodulated 150 220 290 kHz Mute drive output VMUTE-0 No input. The pin 33 DC output, unmodulated 1.8 2.5 3.3 V VMUTE-100 100 dBµ, 0 dBµ. The pin 33 DC output, unmodulated 0 0.1 0.2 V [FM FE Mixer Input N-AGC on input VN-AGC 83 MHz, unmodulated. 83 90 97 dBµ The input such that the pin 2 voltage is 2.0 V or below W-AGC on input VWAGC 83 MHz, unmodulated. The input such that the pin 2 98 104 110 dBµ voltage is 2.0 V or below. (When the keyed AGC is set to 4.0 V.) Conversion gain A.V 83 MHz, 80 dBµ, unmodulated. The FE CF output 90 140 220 mVrms Oscillator buffer output VOSCBUFFFM No input 85 110 165 mVrms [Multipath Rejection Circuit] MRC input (pin 27) MRC output VMRC V24 = 5 V 2.9 3.0 3.1 V MRC operating level MRC-ON The pin 26 input level at f = 70 kHz such that 35 55 70 mVrms pin 24 goes to 5 V and pin 27 goes to 2 V |
Codice articolo simile - LA1776M_09 |
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Descrizione simile - LA1776M_09 |
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