LA4581MB

Ordering number: EN3535A Monolithic Linear IC LA4581MB Preamplifier + Power Amplifier for 3V Headphone Stereos Overview The LA4581MB is an auto reverse-supported preamplifier + power amplifier IC that is intended for use in 3V headphone stereos. Package Dimensions unit : mm 3112-MFP24S [LA4581MB] Features . Preamplifier muting and preamplifier output on/off can be . . . . implemented with one pin. This IC can easily be used to construct a set with a radio. The power amplifier needs no input/output coupling capacitor. A high-frequency cut capacitor is connected to the preamplifier input pin and the power amplifier input pin. (Anti-buzz provision) Because Vref AMP (r0 = 10 Ω) is built in, the virtual grounding impedance is about 10 Ω. This eliminates the need for a large capacitor. 8 Ω speaker drivable. SANYO : MFP24S Specifications Maximum Ratings at Ta = 25 °C Parameter Maximum supply voltage Allowable power dissipation Operating temperature Storage temperature Symbol VCC max Pd max Topr Tstg Conditions Ratings 4.5 530 –20 to +75 –40 to +125 Unit V mW °C °C Operating Conditions at Ta = 25 °C Parameter Recommended supply voltage Operating supply voltage range Symbol VCC VCC op Conditions Ratings 3.0 1.8 to 3.6 Unit V V Operating Characteristics at Ta = 25 °C, VCC = 3.0 V, f = 1 kHz, 0.775 V = 0 dBm, RL = 10 kΩ (preamplifier), RL = 16 Ω (power amplifier) Parameter [Pre + Power] Quiescent current Voltage gain (Closed) Symbol ICCO VGT Output Rg = 2.2 kΩ (preamplifer) V...