la4815m Sanyo Semiconductor Corporation, la4815m Datasheet
la4815m
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la4815m Summary of contents
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... LA4815M Overview The LA4815M incorporates a 1-channel power amplifier with a wide operating supply voltage range built into a surface-mounted package. This IC also has a mute function and requires only a few external components, making it suitable for low-cost set design. There is also a surface-mounted package type with heat sink (LA4815VH). ...
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... Ripple rejection ratio SVRR Mute control voltage-LOW V7cntL Mute control voltage-HIGH1 V7cntH1 Mute control voltage-HIGH2 V7cntH2 Input resistance Ri LA4815M Conditions * Mounted on the board Conditions Conditions No signal No signal, pin 7 = LOW THD = 10% THD = 10 4Ω -30dBV -40dBV, pin 1/pin8 = GND ...
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... Package Dimensions unit : mm (typ) 3032D 5 (0.65) 1.27 0.35 0.15 SANYO : MFP8(225mil) Evaluation board 1. Double-sided circuit board Dimensions : 50mm × 50mm × 1.6mm Top Layer(Top view) LA4815M Pd max – Ta 1.2 SANYO evaluation board (double-sided), 1.0 50 × 50 × 1.6mm 3 (glass epoxy) 0.9 0.8 0.6 0.4 Independent IC 0.3 0.2 0 – 30 – Ambient temperature, Ta – °C Bottom Layer(Top view) 0 ...
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... CPU GAIN2 MUTE 8 7 MUTE Vbias BIAS 1 2 GAIN1 GND1 Test Circuit GAIN2 MUTE GAIN1 GND1 Vin LA4815M 10μ OUT Cosc = 0.1μ Pre- Power AMP AMP PGND Cin = 1μF Vin 0.1μF + 0.35V 10μF ...
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... MUTE 2.3 8 GAIN2 0.2 LA4815M Description Gain switching pin. • 26dB mode when left open. • 40dB mode when connected to ground. (Both pins 1 and 8 must be reconfigured at the same time.) Preamplifier system ground pin. Input pin. Power amplifier ground pin. Power amplifier output pin. ...
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... Using the smallest resistor Rg1 value possible is recommended. In addition, when setting the signal level, the voltage gain should be set on the LA4815M side and the input front-end should be configured using only the input coupling capacitor, Cin, as shown in Fig order to maximize the ripple rejection ratio ...
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... The internal power amplifier circuit can be disabled and audio mute is turned on by controlling the voltage applied to Pin 7. Control can be performed directly using the CPU output port, but digital noise from the CPU may worsen the LA4815M noise floor. Therefore, inserting a series resistor, Rm1 (1 to 2.2kΩ) as shown in Fig recommended. • Mute ON : Low • ...
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... CPU, DSP or other IC that generates digital noise in the set recommended that a power supply bypass capacitor (ceramic capacitor, recommended value = approximately 0.1μF) be added to reject high-frequency components. Locate this bypass capacitor as close to the IC as possible. LA4815M LA4815M Cmt 1μ ...
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... Pin 3 input impedance : Zin = 100kΩ Rg3 Rg2 Vin Cin Vout1 Rg1 Figure 10 R1 125Ω Vin2 8 + GAIN2 Cin2 500Ω Pre-Amp - Rg2 Vin1 + 3 IN Cin 100kΩ Rg1 LA4815M Figure 11 Pre-Amp - 100kΩ Vbias LA4815M 10kΩ OUT 5 Vout - + PWR - Amp Vbias No.A1373-9/14 ...
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... Supply voltage – – 1 8Ω 26dB fin = 1kHz 1 0.8 0.6 0.4 0 0.01 0.1 Output power – W LA4815M 4Ω 26dB 2 fin = 1kHz 0 0. 4Ω ...
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... Vmute – – 110 8Ω 26dB -10dBV fin = 1kHz – 115 – 120 – 125 – 130 Supply voltage – V LA4815M 8Ω 620Ω -20dBV Cin = 1μ ...
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... THD – 8Ω 26dB 2 fin =1kHz 0 0.01 0.1 Output power – W LA4815M OPEN Rg = 0Ω 26dB Vin = -20dBV 8Ω 1 ...
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... Ambient temperature, Ta – °C I CCO – OPEN Rg = 0Ω Supply voltage – V LA4815M 4Ω 26dB 5 fin = 1kHz 3 THD = 10 0 0.01 – 100 ...
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... SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellctual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of December, 2008. Specifications and information herein are subject to change without notice. LA4815M 12V 200ms/div 8Ω Cin = 1μF ...