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LA4581MB

Sanyo
Part Number LA4581MB
Manufacturer Sanyo
Description Preamplifier Power Amplifier
Published Apr 25, 2005
Detailed Description Ordering number: EN3535A Monolithic Linear IC LA4581MB Preamplifier + Power Amplifier for 3V Headphone Stereos Overvi...
Datasheet PDF File LA4581MB PDF File

LA4581MB
LA4581MB

Overview
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) VIN = 0 V VO = –5 dBm min typ 17 68 max 27 71 Unit mA dB 65 Continued on next page.
SANYO Electric Co.
,Ltd.
Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg.
, 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 22896HA(II) No.
3535-1/8 LA4581MB Continued from preceding page.
Parameter [Preamplifier] Voltage gain (Open) Voltage gain (Closed) Maximum output voltage Total harmonic distortion Equivalent input noise voltage Crosstalk Ripple rejection ratio [Power Amplifer] Output voltage Vo...


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