SD7402 Silan Microelectronics, SD7402 Datasheet
SD7402
Available stocks
Related parts for SD7402
SD7402 Summary of contents
Page 1
... THREE-CHANNEL AUDIO AMPLIFIER DESCRIPTION SD7402 is a 3-channel audio amplifier with built-in microphone input amplifier. High quality audio output is available through simple peripheral circuit and the amplifier gain can be adjusted flexibly by external resistor. Its audio output signal-noise ratio is 85dB, total harmonic distortion is 0.05% and the channel separation is 78dB. ...
Page 2
... BLOCK DIAGRAM ABSOLUTE MAXIMUM RATINGS Characteristics Supply Voltage (V /Vss) CC www.DataSheet4U.com Operating Temperature Storage Temperature Note 1: Tolerable voltage is decided by external resistor because of built-in voltage regulator at negative power supply. HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http://www.silan.com.cn Symbol Rating V /V +6/-- -20~85 opr T -40~125 stg ...
Page 3
... Audio Amplitude Response Change Voltage Gain Total Harmonic Distortion Signal-Noise Ratio Dynamic Range Mute Restrain Channel Separation Channel Balance Input Impedance PIN CONFIGURATION www.DataSheet4U.com HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http://www.silan.com.cn (Unless otherwise specified, V Symbol Test Condition External resistor 470Ω at ...
Page 4
... The second-order filter structure shown as above is adopted for 3-channel audio amplifier, with in-band gain of about 12dB and -3dB bandwidth of 40kHz above which is well meet audio requirements. As principle structure, in-band gain is decided by: HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http://www.silan.com.cn I/O Positive power supply ...
Page 5
... The pin STBY_N controls system entering standby mode by turning off internal amplifier bias circuit. When this pin is connected to Vss, system enters standby mode, and when floated, system works normally. Note: internal voltage regulating circuit still works in standby mode and supplies working current. HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http://www.silan.com.cn REV:1.0 2009 ...
Page 6
... TYPICAL APPLICATION CIRCUIT www.DataSheet4U.com HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http://www.silan.com.cn REV:1.0 2009.11.11 Page ...
Page 7
... Silan products could cause loss of body injury or damage to property. • Silan will supply the best possible product for customers! HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http://www.silan.com.cn UNIT: mm REV:1.0 2009.11.11 ...