LV4991TT_08 SANYO [Sanyo Semicon Device], LV4991TT_08 Datasheet
![no-image](/images/no-image-200.jpg)
LV4991TT_08
Related parts for LV4991TT_08
LV4991TT_08 Summary of contents
Page 1
Ordering number : ENA0739D LV4991TT Overview LV4991TT incorporates the power amplifier circuit operable at low voltage (2.7V or more) and has additionally the standby function to reduce the current drain. This is the best LSI for speaker drive for the ...
Page 2
Specifications Maximum Ratings 25°C Parameter Symbol Maximum supply voltage V CC max Allowable power dissipation Pd max Operating temperature Topr Storage temperature Tstg * Substrate mounted : with 58mm × 89mm × 1.6mm, glass epoxy substrate Operating ...
Page 3
Package Dimensions unit : mm (typ) 3245B 3 (0.53) 0.65 0.25 0.125 SANYO : MSOP8(150mil) Recommended substrate 1. Two sided substrate Size : 58mm×89mm×1.6mm Top Layer 2. One sided substrate Size : 58mm×89mm×1.6mm Top Layer LV4991TT Pd ...
Page 4
Block Diagram and Sample Application Circuit C3 R1 0.33µF 22kΩ 10kΩ STBY from CPU 2 VREF 3 C4 1µF CNT from CPU 4 R4 10kΩ Test Circuit 0.33µF 22kΩ 620Ω V STBY 1µF LV4991TT R2 ...
Page 5
Pin Description Pin voltage Pin No. Symbol 3. 1.81 2 STBY 3 VREF 1.81 4 CNT 5 OUT2 1.81 8 OUT1 6 GND LV4991TT Description Input pin Standby pin •Standby mode at ...
Page 6
Cautions for use 1. Input coupling capacitor (C3) The input coupling capacitor C3 and input resistor R1 make up the high-pass filter, attenuating the bass frequency. Therefore, the capacitance value must be selected with due consideration of the pass band. ...
Page 7
Bypass capacitor (C2) of the power supply block The bypass capacitor attached to the power pin (pin 7) must be arranged as near to this pin as possible. 6. Short-circuit between pins When power is applied with pins left ...
Page 8
THD -- P O 100 8Ω 6dB 5 fin = 1kHz 3 200<BW<80kHz 0 100 Output power, ...
Page 9
600 3. 6dB fin = 1kHz 500 200Hz<BW<80kHz 400 300 200 100 THD = Load resistance Ω I CCO ...
Page 10
I CCO -- Ta 4 3.5 3 2.5 2 1 Temperature ° 1200 8Ω 1100 VG = 6dB THD = 10% 1000 fin = ...
Page 11
Pop sound 1. Startup STBY→PWR OUT1-OUT2 : 10mV/div, AC SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other ...