Electronic Components Datasheet Search |
|
LA1781M Datasheet(PDF) 3 Page - Sanyo Semicon Device |
|
LA1781M Datasheet(HTML) 3 Page - Sanyo Semicon Device |
3 / 48 page LA1781M No.6038-3/48 Continued from preceding page. Ratings Parameter Symbol Conditions min typ max Unit FM FE Mixer input N-AGC on input VNAGC 83MHz, unmodulated. The input such that the pin 2 voltage is 2.0V or below 81 88 95 dB μ W-AGC on input VWAGC 83MHz, unmodulated. The input such that the pin 2 voltage is 2.0V or below. (When the keyed AGC is set to 4.0V.) 104 110 116 dB μ Conversion gain A. V 83MHz, 80dB μ, unmodulated. The FE CF output 19 30 48 mVrms Oscillator buffer output VOSCBUFF-FM No input 85 110 165 mVrms NC Block NC input (pin 30) Gate time TGATE f = 1kHz, for a 1 μs, 100-mVp-o pulse 55 μs Noise sensitivity SN The level of a 1kHz, 1 μs pulse input that starts noise canceller operation. Measured at pin 30. 40 mVp-o NC effect SN-NC The pulse rejection effect provided by the noise canceller. For a repeated 1 μs wide pulse, frequency = 10kHz, 150mVp-o. The ratio of the FM mode pin 15 output referenced to the AM mode pin 15 output (effective value) 5 Multipath rejection circuit MRC input (pin 27) MRC output VMRC V24 = 5V 2.2 2.3 2.4 V MRC operating level MRC-ON The pin 32 input level at f = 70kHz such that pin 24 goes to 5V and pin 27 goes to 2V 10 15 20 mVrms AM characteristics AM ANT input Practical sensitivity S/N-30 1MHz, 30dB μ, fm = 1kHz, 30% modulation, pin 15 20 dB Detector output VO-AM 1MHz, 74dB μ, fm = 1kHz, 30% modulation, pin 15 130 195 270 mVrms Pin 31 detector output VO-AM31 1MHz, 74dB μ, fm = 1kHz, 30% modulation, pin 31 110 175 230 mVrms AGC F.O.M. VAGC-FOM 1MHz, 74dB μ, referenced to the output, the input amplitude such that the output falls by 10dB. Pin 15 59 64 69 dB Signal-to-noise ratio S/N-AM 1MHz, 74dB μ, fm = 1kHz, 30% modulation 47 52 dB Total harmonic distortion THD-AM 1MHz, 74dB μ, fm = 1kHz, 80% modulation 0.3 1 % VSMAM-1 No input 0.0 0.2 0.5 V Signal meter output VSMAM-2 1MHz, 130dB μ, unmodulated 3.5 4.4 6.1 V Oscillator buffer output VOSCBUFF-AM1 No input, the pin 15 output 185 230 mVrms W-AGCsen1 1.4MHz, the input when V46 = 0.7V 92 98 104 dB μ Wide band AGC sensitivity W-AGCsen2 1.4MHz, the input when V46 = 0.7V (seek mode) 83 89 95 dB μ SD-sen1AM 1MHz, the ANT input level such that the IF counter output turns on. 24 30 36 dB μ SD sensitivity SD-sen2AM 1MHz, the ANT input level such that the SD pin goes to the on state. 24 30 36 dB μ IF buffer output VIFBUFF-AM 1MHz, 74dB μ, unmodulated. The pin 23 output 200 290 mVrms Note : These measurements must be made using the either the IC-51-0644-824 or KS8277 IC socket (manufactured by Yamaichi Electronics). *1. When the resistor between pin 58 and ground is 200k Ω. *2. When the resistor between pin 58 and ground is 30k Ω. |
Similar Part No. - LA1781M |
|
Similar Description - LA1781M |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |