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LA4636 Folha de dados(PDF) 2 Page - Sanyo Semicon Device |
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LA4636 Folha de dados(HTML) 2 Page - Sanyo Semicon Device |
2 / 3 page LA4636 No. 6985-2/3 Operating Characteristics at Ta = 25 °C, VCC = 12 V, RL = 4 Ω, f = 1 kHz, Rg = 600 Ω Parameter Symbol Conditions Ratings min typ max Unit Quiescent current ICCO Rg = 0 40 70 150 mA Standby current Ist 010 µA Voltage gain VG VO = 0 dBm 33 35 37 dB Total harmonic distortion THD PO = 1 W 0.06 0.2 % Output power PO1 THD = 10% 8 11 W PO2 THD = 10%, RL = 6 Ω 9W Output noise voltage VNO Rg = 0, BPF = 20 Hz to 20 kHz 0.14 0.3 mV Ripple rejection SVRR Rg = 0, fR = 100 Hz, VR= 0 dBm 50 60 dB Channel separation CH Sep Rg = 10 k Ω, VO = 0 dBm 50 60 dB Input resistance Ri 14 20 26 k Ω Output offset voltage VN offset Rg = 0 –300 +300 mV Standby pin voltage VST Amplifier on (pin 5 voltage) 2.5 10 V Mute pin voltage VM Mute on (pin 6 voltage) 1.5 3 V Mute attenuation ATTM VO = 1Vrms, BPF = 20 Hz to 20 kHz 80 90 dB Measurement Circuit Diagram Signal Mute Function • Connecting a CR of the recommended value (10 µF, 22 k Ω) to pin 6 of the IC and applying +5 V turns signal mute on. This function mutes low-frequency popping noises. • The CR is for smoothing during attack and recovery. The 10 µF capacitor also performs smoothing after the starting time, so it is necessary even if the signal mute function is not used. If a 22 k Ω external resistor is used, the pin 6 inflow current (Imute) will be approximately 160 µA when +5 V is applied. It is possible to change the external resistance value if the voltage applied is changed or to match the capacity of the microprocessor, but the popping noise level could rise if the pin 6 inflow current increases too much. It is therefore important to check the inflow current whenever the resistance value is changed. Note: The LA4636 is basically pin-compatible with the LA4635, but there are partial differences in operation and usage, including with regard to externally connected parts. + DC + IN1 + IN2 + MUTE PWR GND +OUT2 --OUT2 --OUT1 STBY VCC VCC PRE GND + +OUT1 LA4636 1 2 3 4 5 6 7 10 11 12 RL RL 8 9 ILA00774 Top view Pin 6 Equivalent Circuit Inside IC 22k Ω 5V 2k Ω 6 Imute ILA00775 Approximately 1.56V |
Nº de peça semelhante - LA4636 |
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Descrição semelhante - LA4636 |
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