la4809m Sanyo Semiconductor Corporation, la4809m Datasheet
la4809m
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la4809m Summary of contents
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... LA4809M Overview LA4809M is a 2-channels power amplifier to drive the headphone with wide supply voltage range. To minimize the effects of power supply, the regulator circuit for control of the output power is built-in to enable setting of the output power value adequate for the headphone amplifier (2 types of set value available). This product also has the standby function, and is suitable as a driver for wide-ranging headphone ...
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... Pin 2 voltage : V2 = 2.1V, Internal regulator voltage : Vreg = 2 × 4.2V, Amp operating reference voltage : Vref = 1 × 2.1V mode-B (Pin 10 = gnd max = 160mW Pin 2 voltage : V2 = 3.1V, Internal regulator voltage : Vreg = 2 × 6.2V, Amp operating reference voltage : Vref = 1 × 3.1V LA4809M Conditions Without signal * Mounted on a printed circuit board. ...
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... SIDE VIEW 5 0.15 0.3 0.8 (0.5) SIDE VIEW SANYO : MFP12S(225mil) Evaluation board Copper foil pattern diagram (Dimensions : 50mm × 50mm × 0.8mm) Top Layer (Top view) LA4809M 2.0 SANYO evaluation board BOTTOM VIEW 1.75 (3.4) 1.5 1.0 0.5 Independent IC 0.3 0 – 30 – 20 Bottom Layer (Top view) Pd max -- Ta Mounted on a specified board ...
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... IN2 NC Vref = Vrf Vrf BIAS IN1 Vin1 from CPU Test Circuit Diagram 620Ω S12 0.1μF 12 IN2 IN1 1 0.1μF S11 SG 620Ω LA4809M P O max = 55mW P O max = 160mW + PLS OUT2 NC GND + - REG - + STBY OUT1 ...
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... V CC Applied Applied 7 GND GND GND 10 PLS 0.69 GND LA4809M Description Amplifier input pin. Reference voltage pin. 2 Standby control pin. (to which the external voltage is applied) Amplifier output pin. NC pin. Power pin. (to which the external voltage is applied) GND pin. Output power selection pin. ...
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... When connecting this capacitor, pay attention to its capacitance value. Recommended capacitance value : 560pF or less, or 0.01μF to 0.1μF LA4809M OUT IN other IC LA4809M (High attenuation degree) Fig.2 OUT + LA4809M Fig.3 No.A1569-6/15 ...
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... CPU output port, the control may be exposed to adverse affect of digital noise from CPU recommended therefore to insert series resistance (1kΩ or more). Standby mode ⇒ 0.6V Operation mode ⇒ (for above (for less than 9V) LA4809M STBY-cnt from CPU V CC 22μ ...
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... The package used for this IC has the low heat sink effect as a single unit. When the working supply voltage is high, solder the backside heat sink pad to ensure sufficient heat sink performance with copper foil of printed circuit board. LA4809M -5 /Rst ...
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... 32Ω fin = 1kHz Supply voltage THD -- V CC 0.4 0.3 0.2 0 Supply voltage LA4809M 100 mode 12V 5 fin = 1kHz 0 100 1 180 mode 16Ω ...
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... 12V 7 fin = 1kHz 16Ω 0 0. 100 Output power mW/ch LA4809M 620Ω Din audio filter 10k 100k 13 Vin = -20dBV fin = 1kHz Cout = 100μF 12 10k 100k ...
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... Rg = 620Ω 16Ω Din audio filter 100 1k Input frequency, fin -- Hz LA4809M 80 Vin = -15dBV fin = 1kHz Rg = 620Ω 16Ω SEP = Vin-Vout 100k -- 12V Vin = -10dBV 16Ω ...
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... Resistance, Rrf -- kΩ I STBY -- 0.3V no load no signal Supply voltage LA4809M 10000 12V 16W 5 rise time ⇒ VRF × 0.7 3 rise time of RF voltage 2 1000 100 ...
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... Ambient temperature °C SVRR -- Ta 100 12V Vin = -10dBV frin = 100Hz 16Ω --50 -- Ambient temperature °C LA4809M 12V 16W f = 1kHz 10mW 0.1 75 100 --50 -- 12V 16Ω 620Ω Din audio filter ...
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... Ambient temperature °C •Transient response characteristics (Rising characteristics) mode-A (with no signal) mode-B (with no signal) LA4809M 12V 1.8 1.6 1.4 1 100 --50 50ms/div Load end : 20mV/div Output pin : 1V/div Pin 3 : 5V/div 50ms/div Load end : 20mV/div Output pin : 1V/div ...
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... This catalog provides information as of October, 2009. Specifications and information herein are subject to change without notice. LA4809M 100ms/div Load end : 20mV/div Output pin : 1V/div Pin 3 : 5V/div ...