u2860b-b ATMEL Corporation, u2860b-b Datasheet
u2860b-b
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u2860b-b Summary of contents
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... Rev. A2, 08-Feb-01 with high performance. The circuit is alignment-free and has a minimum number of external components. With 5 V supply voltage, the U2860B-B is suitable for TV, VCR and multimedia applications. D Automatic mute for 2nd sound channel (squelch) D Mute function for both sound channels supply voltage, low power consumption ...
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... U2860B-B Ordering Information Extended Type Number U2860B-B U2860B-BFP Circuit Description The U2860B-B includes two identical sound IF channels. Each consists of a limiter amplifier, PLL FM demodulator and AF amplifier. Additionally, this circuit contains a squelch function, mute switch and internal voltage regulation. Limiter Amplifiers The intercarrier signals are fed through external ceramic bandpass filters to a 7-stage limiter amplifier ...
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... Pin ext Pin ext Pin 10 ext stg V ESD U2860B-B Function V Intercarrier input of sound in1 channel 1 (5.5 MHz) NC Not connected V Mute for sound channel 1+2 mute “on/off” V Automatic mute for 2nd sound sque channel (squelch) “on/off” ...
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... U2860B-B Operating Range Parameters Supply voltage range Ambient temperature Thermal Resistance Parameters Junction ambient when soldered to PCB Electrical Characteristics 25_C, reference point Pin 12, unless otherwise specified S amb Parameters Test Conditions / Pins DC-supply Supply voltage range Supply current Intercarrier input 1 ...
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... out kHz v AF THD = 1 kHz kHz, a att < 200 mV Pin 3 V mute I mute Pin 4 V sque I sque U2860B-B Min. Typ. Max. Unit 200 kHz/kW 1.4 1.9 MHz 2.0 3.0 MHz 2.2 V 1.0 –1 150 1.0 mA 500 0.1 0 ...
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... stab U2860B Mute Squelch Figure 3. Test circuit + U2860B Mute Squelch Figure 4. Application circuit *) 2 ...
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... Figure 5. PCB layout (test/application circuit) Figure 6. Component layout (test circuit) Rev. A2, 08-Feb-01 95 10708 95 10709 Figure 7. Component layout (application circuit) U2860B-B 95 10710 7 (11) ...
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... U2860B-B 0.5 0.4 0.3 0.2 0.1 0 Frequency/ MHz 95 10705 Figure 8. Total harmonic distortion 0 –10 –20 –30 –40 –50 –60 –70 – 100 110 120 IF input level/ dBmV 95 10703 Figure 9. AM suppression 120 100 Pin 10 open ...
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... Figure 15. Mute switch/squelch switch 6,7 100 W 1 10612 Figure 16. Audio outputs Rev. A2, 08-Feb-01 8,9 600 W 1. 600 W 9510607 Figure 18. VCO offset (reference resistor) Figure 19. Internal supply voltage stabilization U2860B-B Figure 17. Decoupling capacitor 3 8591 11 3 8592 9 (11) ...
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... U2860B-B Package Information Package DIP14 Dimensions Package SO14 Dimensions in mm 0.4 1. (11) 20.0 max 4.8 max 3.3 0.5 min 1.64 0.58 2.54 1.44 0.48 15.24 8 technical drawings according to DIN specifications 7 8.75 1.4 0.25 0.10 7.62 8 technical drawings according to DIN specifications 7 7.77 7.47 6.4 max 0.36 max 9.8 8.2 13020 5.2 4.8 3.7 0.2 3.8 6.15 5.85 13035 Rev. A2, 08-Feb-01 ...
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... Data sheets can also be retrieved from the Internet: Atmel Germany GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone: 49 (0)7131 67 2594, Fax number: 49 (0)7131 67 2423 Rev. A2, 08-Feb-01 U2860B-B http://www.atmel–wm.com 11 (11) ...