la4800v Sanyo Semiconductor Corporation, la4800v Datasheet
la4800v
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la4800v Summary of contents
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... Ordering number: EN4335A Overview The LA4800V is a headphone stereo power amplifier IC that features a high signal-to-noise ratio, high ripple rejection, low distortion and low current consumption, making it ideal for portable CD players. Functions . . Headphone stereo power amplifier Beep tone . Power switch . Power mute switch Features ...
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... Power ON current sensitivity Power OFF voltage sensitivity V 1 OFF Mute OFF current sensitivity l 16 OFF Mute OFF voltage sensitivity V 16 OFF Mute ON voltage sensitivity LA4800V = 2 kHz unless otherwise noted 3 Conditions IC OFF Mute ON No input signal V = –10 dBm – ...
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... Pin Assignment and Block Diagram Test Circuit LA4800V Top view Unit (resistance: Unit (resistance capacitance: F) No.4335-3/11 ...
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... DC number 1 PWR 0 1 1.1 LA4800V Unit (resistance: Unit (resistance: ) Equivalent circuit Power switch Turns ON the power to the V Power input pins 10 k input resistance Power amplifier common input pin Usually connected to Vref Signal from microcontroller , capacitance: F) Pin description pin ...
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... CC 12 OUT B 1.1 13 OUT C 1.1 15 OUT A 1.1 14 PWR GND 16 MUTE 1.85 LA4800V Unit (resistance: ) Equivalent circuit F 1.1 V fixed bias Preamplifier ground 1.1 V reference control pin Preset to approximately V F Beep tone input pin Active only when mute is ON. RF control pin to RF Power supply Power output pins Pin 13 is the headphone center common drive ...
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... PWR output and hence these RC components will also influence the actual value of V tone, the impedance of C10, connected to the common output (pin 13), must be greater than the impedance of C9 and C11, i.e. C10 must be greater than C9 and C11. LA4800V Description Input coupling capacitors ...
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... The mute ON/OFF switching waveforms are shown in the figure above. The settling time t connected to pin 16. The recommended value of C The setting time for different values (µF) r 0.1 1.0 2.2 LA4800V is 1 µF. If the value used is less than 1 µF, pop noise will increase. r are shown in the table below. t (ms) S OFF 15 150 300 ...
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... V CC Supply voltage, V − B.P.F = 400 kHz Supply voltage, V − Supply voltage, V − LA4800V Channel 2 ON Input frequency, fi − Hz B.P.F = 400 kHz Channel 2 ON Input voltage, V Channel 2 ON Supply voltage, V Input frequency, fi − Hz Unit (capacitance: F) − dBm IN − ...
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... V CC Mute ON/OFF threshold region Mute OFF (PWR ON) Mute OFF, 100k , 1 µF (pin 16) Mute ON (PWR OUT = 80 dB) Supply voltage, V − LA4800V Input frequency, fi − Hz Mute OFF Supply voltage MUTE Ambient temperature Ta − °C Mute ON − Unit (resistance = ) − ...
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... Vref DC − Ta Ambient temperature, Ta − ° Headphone load L Ambient temperature, Ta − °C (sine wave) Ambient temperature, Ta − °C (sine wave) Ambient temperature, Ta − °C LA4800V Headphone load L Ambient temperature, Ta − ° Headphone load L Ambient temperature, Ta − °C (sine wave) Ambient temperature, Ta − ...
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... SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of March, 1996. Specifications and information herein are subject to change without notice. LA4800V No.4335-11/11 ...