la4820m Sanyo Semiconductor Corporation, la4820m Datasheet
la4820m
Related parts for la4820m
la4820m Summary of contents
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... Ordering number: EN5205A Overview The LA4820M compound power IC is designed for portable information processing equipment, such as electronic book players and personal notebook computers, and provides on chip headphone stereo amplifier and monaural speaker amplifier functions required of such devices. This system IC also provides on chip a power-saving headphone jack plug-in/out detection function, which automatically switches the amplifiers, and an optimum volume level controller ...
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... V O PVSS distortion factor THD5 PVSS start input V OPi PVSS width W PVSS [Ripple Filter] Output voltage V RF Ripple rejection ratio Rr3 LA4820M Conditions With Sanyo evaluation board (84.2 92.6 mm Symbol Conditions 6 kHz, 0.775 dBm ...
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... Block Diagram LA4820M No.5205-3/20 ...
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... Test Circuit Diagram LA4820M No.5205-4/20 ...
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... Sample Application Circuit Tantalum capacitor is recommended polyester film or ceramic capacitor (of which capacitance specified must be independent of temperature changes) is recommended. LA4820M No.5205-5/20 ...
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... Sample Application Circuit 2 (When neither ripple filter nor common amplifier is used Tantalum capacitor is recommended. LA4820M No.5205-6/20 ...
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... MONO IN 2.8 4 MIX OUT 2.8 5 IN1 2.8 6 IN2 LA4820M * When the pin voltage is for V Internal equivalent circuit c LPF pin for ripple filter reference bias. c Ripple rejection ratio can be adjusted through an external capacitor. c Open when no ripple filter is needed. c Power mute is turned on when pin 2 is pulled down. ...
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... Pin Name Pin Voltage 7 PRE GND 8 V REF 9 V REF REF 10 REF 11 PWRC CONT 12 DET OUT 0.5 to 1.0 LA4820M Internal equivalent circuit 2.8 V REF 2.8 5.1 0.8 Remarks c Connects small-signal block to GND. c Virtual ground bias pin. c Impedance is lowered by V REF amplifier. ( less voltage is determined by REF ...
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... OUT2 2.3 17 OUT1 16 OUTC 2.3 18 PWR GND LA4820M Internal equivalent circuit c PVSS detection input pin. c PVSS turns off when pulled down or left open. c Switches to HzP when pin 14 is pulled down (connected to GND through The external capacitance and resistance is for mode switching smoothing. ...
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... CC 23 BASE 5 6.0 CC LA4820M Internal equivalent circuit c MONO Power output pin. c BTL operation provides phase inversion and amplitude. c MONO Power output level detection input pin. c Output limiter level can be varied by external resistance. c Ripple filter output pin. c Power supply pin when no ripple filter is used ...
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... Sanyo Evaluation Board Pattern LA4820M Surface (silk side) Tone block (copper foiled side) Unit (resistance: Copper foiled side , capacitance: F) No.5205-11/20 ...
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... Ripple rejection ratio can be varied by changing the capacitance (22 µF to 3.3 µF): LPF capacitor for internal ripple filter reference bias. Ripple rejection ratio can be varied by changing the capacitance (33 µ µF): ALC rectifying capacitor for PVSS, output limiter and non-clipping circuit. LA4820M The V Resistance V 1 − ...
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... Capacitance Mute-on time 6 1.5 µA Mute-on condition LA4820M voltage and the pin 1 C1 capacitance (LPF capacitor for the reference bias) must CE voltage must be adjusted to be ripple bottom peak voltage +0 more voltage and is controlled by means of ALC configuration. CC 0.75 V ...
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... MONO amplifier. When the HzP amplifier is operating, the MONO amplifier is turned off, and when the MONO amplifier is operating, the HzP amplifier is turned off. c Smoothing is applied by using an external capacitor and resistor in order to prevent switching shock noise. c Open HzP condition V % 0.2 V S14 LA4820M Mute on Pin 2 discharging Mute-on time No.5205-14/20 ...
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... LA4820M Supply voltage − Frequency, fi − Hz Without BPF to Frequency, fi − Hz Output power, Po − mW <Each pin voltage> pin 22 CC VR.F pin 10 V pin 8 REF Output DC Pins Pins 19 and 21 Supply voltage − Supply voltage − BPF 400 to 30 kHz Supply voltage − ...
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... Output on both channels Output power, P − TUNE used Supply voltage − BPF = 400 to 30 kHz Vi − dBm LA4820M Supply voltage, V Supply voltage, V used Frequency, f Depending on the impedance of coupling capacitor 0.22 µF. Frequency, fi − − − − ...
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... LA4820M Supply voltage − Upper clipping Supply voltage − BPF = 400 to 30 kHz Supply voltage − Frequency, fi − Hz Frequency, fi − Hz BPF 400 to 80 kHz IN Frequency, fi − kHz 1 kHz Output power, P − Less upper D range Supply voltage − ...
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... LA4820M Supply voltage − Supply voltage − used Frequency, f − Supply voltage − Output on both channels Output power, P − used Supply voltage − Frequency, fi − Hz Output power, P − No.5205-18/20 ...
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... V CC used Frequency, f − Non-clipping Output limiter BPF = 400 to 30 kHz open Non-clipping Output limiter Vi − dBm LA4820M Non-clipping Output limiter Supply voltage, V Supply voltage, V Pin 12 GND Output power, P Non-clipping Output limiter Non- clipping Supply voltage − − ...
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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 February, 1996. Specifications and information herein are subject to change without notice. LA4820M V (V 2), SVRR − ...