u2860b-m ATMEL Corporation, u2860b-m Datasheet
u2860b-m
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u2860b-m Summary of contents
Page 1
... Pb-free Package, which is Compliant with Requirements of RoHS 1. Description The U2860B dual-channel FM sound demodulator realized with Atmel’s advanced bipolar process. All TV FM standards, from 4.5 MHz up to 6.5 MHz (standard M, B/G, I, D/K) can be processed with high performance. The circuit is alignment-free and has a minimum number of external components. With 5V supply voltage, the U2860B-M is suitable for TV, VCR and multimedia applications ...
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... C9 Decoupling capacitor for sound channel 2 10 RREF VCO offset of the free-running frequency 11 CSTAB Internal supply voltage stabilization 12 GND Ground 13 VS Supply voltage 14 VIN2 Intercarrier input of sound channel 2 (5.74 MHz) U2860B-M 2 VIN1 1 14 VIN2 GND VMUTE 4 11 VSQUE CSTAB ...
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... Circuit Description The U2860B-M 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. 4. Limiter Amplifiers The intercarrier signals are fed through external ceramic bandpass filters to a 7-stage limiter amplifier ...
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... Junction temperature Storage temperature (1) Electrostatic handling all pins Note: 1. Machine model in accordance with ESD S5.2 standard. 11. Thermal Resistance Parameters Junction ambient when soldering to PCB 12. Operating Range Parameters Supply voltage range, pin 13 Ambient temperature U2860B-M 4 Pin Symbol out ...
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... AC output peak current Note: 1. This parameter is given as an application information and not measured during final testing. 4794E–TVVCR–12/05 Pin : in = –3 dB AF1 : in = –3 dB AF2 T = 55°C < 5. ref at pin 10 ref U2860B-M Symbol Min. Typ. Max. V 4 680 in v lim V 1 ...
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... AF outputs not active Control current Squelch Function, (Pin 4) Control voltage for automatic mute 2nd carrier - off - on Control current Note: 1. This parameter is given as an application information and not measured during final testing. U2860B-M 6 Pin = kHz = kHz = kHz < 200 mV ...
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... Diagrams Figure 14-1. Total Harmonic Distortion Figure 14-2. AM Suppression Figure 14-3. VCO Free-running Frequency 4794E–TVVCR–12/05 0.5 0.4 0.3 0.2 0.1 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Frequency (MHz) 0 -10 -20 -30 -40 -50 -60 -70 - Input Level (dBµV) 120.0 80.0 40.0 R10 = 30k 0.0 2.0 3.0 4.0 5.0 6.0 Frequency (MHz) U2860B-M 7.0 8.0 9.0 90 100 110 120 Pin 10 open R10 = 15k 7.0 8.0 9.0 7 ...
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... Figure 14-4. Capture and Hold Range Figure 14-5. Limiter Characteristics Figure 14-6. Signal-to-noise Ratior U2860B-M 8 3.0 2.5 Input level = caption 2.0 1.5 1.0 1.0 2.0 3.0 4.0 5.0 6.0 Frequency (MHz - 5.5 MHz, FM-dev. = +/- 50 kHz, fmod = 1 kHz, 50 µs de-emphasis -14 - Input Level (dB) -50 -55 -60 -65 -70 -75 - Frequency (MHz) Input level = hold 7 ...
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... Drawings Figure 15-1. SIF Inputs Figure 15-2. Mute Switch/Squelch Switch Figure 15-3. Audio Outputs 4794E–TVVCR–12/05 1,14 3. 6,7 100 1.0 mA U2860B-M 600 1.75V 600 9 ...
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... Figure 15-4. Decoupling Capacitor Figure 15-5. VCO Offset (Reference Resistor) Figure 15-6. Internal Supply Voltage Stabilization U2860B-M 10 8,9 2.5 k 3.5V 11 3.5V 4794E–TVVCR–12/05 ...
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... SIF 680 1 2 SFE 5.5 MC SFE 6.0 MC U2860B-M C stab 10 µF 2.2 µ U2860B 3 Mute Squelch AF1 AF2 2 µF 2.2 µ U2860B 3 AF2 AF1 Mute Squelch 2.2 µF 3 2.2 µ 3 ...
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... Ordering Information Extended Type Number U2860B-MFPG3G U2860B-MFPY 18. Package Information Package SO14 Dimensions in mm U2860B-M 12 Package SO14, Pb-free SO14, Pb-free 8.75 1.4 0.25 0.4 0.10 1.27 7. Remarks Standard Package Quantitiy Taped and reeled 4,000 Tube 3,100 5.2 4.8 3.7 0.2 3.8 6.15 5.85 technical drawings according to DIN specifications 4794E–TVVCR–12/05 ...
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... Atmel products are not suitable for, and shall not be used in, automotive applications. Atmel’s products are not intended, authorized, or warranted for use as components in applications intended to support or sustain life. © Atmel Corporation 2005. All rights reserved. Atmel trademarks or trademarks of Atmel Corporation or its subsidiaries. Other terms and product names may be trademarks of others. Atmel Operations Memory ...