la4592w Sanyo Semiconductor Corporation, la4592w Datasheet

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la4592w

Manufacturer Part Number
la4592w
Description
1.5-v Preamplifier + Power Amplifier For Headphone Stereo Products
Manufacturer
Sanyo Semiconductor Corporation
Datasheet

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Part Number:
la4592w-TFM
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la4592w-TFM
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Quantity:
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Ordering number : EN5662
Overview
The LA4592W is a single-chip 1.5-V headphone stereo
system IC. The LA4592W adds a variety of functions,
including a switch amplifier (for end product audio quality
switches, the metal tape switch, and other switches) and an
AMSS (Automatic Music Search System) function that
supports blank skipping, to the earlier LA4590W.
Furthermore, the LA4592W provides even lower no-signal
time power levels for lower end-product power
dissipation. In combination with the LA3235W 1.5-V
record preamplifier IC, the LA4592W can be used to
implement a record/playback cassette system with just two
ICs.
Functions
• Stereo preamplifier: supports auto reverse and includes a
• Stereo power amplifier: Includes OCL and muting
Specifications
Maximum Ratings
Allowable Operating Ranges at Ta = 25°C
Maximum supply voltage
Allowable power dissipation
Operating temperature
Storage temperature
Recommended supply voltage
Operating supply voltage range
muting function.
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
Parameter
Parameter
Ambient temperature, Ta – °C
at Ta = 25°C
V
Pd max
Symbol
Symbol
V
CC
Topr
Tstg
V
CC
CC
max
op
1.5-V Preamplifier + Power Amplifier
• Ripple filter
• Low boost function (BTL operation in the low-
• Inter-track detection function (Supports AMSS and
• Two switching amplifiers
• Power switch (standby function)
Features
• Virtual ground impedance is reduced by built-in V
• No capacitor required for ripple filter oscillation
• Provides ample output power at low frequencies.
• High-frequency cutoff capacitors built into the
Package Dimensions
unit: mm
3163A-SQFP48
functions.
frequency region)
blank skipping)
amplifier
prevention.
(P
preamplifier and power amplifier inputs to minimize
buzzing.
for Headphone Stereo Products
O
Conditions
Conditions
= 24 mW, V
CC
= 1.2 V, f = 150 Hz)
[LA4592W]
73097HA (OT) No. 5662-1/5
Monolithic Linear IC
–40 to +125
–10 to +60
0.95 to 2.2
LA4592W
Ratings
Ratings
SANYO: SQFP48
320
3.0
1.5
Unit
mW
Unit
°C
°C
V
V
V
REF

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la4592w Summary of contents

Page 1

... LA4590W. Furthermore, the LA4592W provides even lower no-signal time power levels for lower end-product power dissipation. In combination with the LA3235W 1.5-V record preamplifier IC, the LA4592W can be used to implement a record/playback cassette system with just two ICs. Functions • Stereo preamplifier: supports auto reverse and includes a muting function. • ...

Page 2

... Output voltage [AMSS] Operating output voltage Operating output voltage Operating output voltage Operating output voltage [SW AMP] Voltage gain (closed loop) Maximum output voltage Ripple rejection ratio Output voltage when off LA4592W = 1 kHz, 0.775 dB Symbol Conditions 2 CCO V ...

Page 3

... AMSS Temperature Characteristics (Values for reference only) Parameter AMSS Operating output voltage Block Diagram LA4592W Symbol Conditions Ta The preamplifier output voltage V when the AMSS V = 0.6 V p-o OAMSS1 O With the PWR muting on. (AMSS) The preamplifier output voltage V when the AMSS V = 0.6 V p-o OAMSS2 O Ratings ...

Page 4

... Test Circuit Diagram LA4592W No. 5662-4/5 ...

Page 5

... SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of July, 1997. Specifications and information herein are subject to change without notice. LA4592W No. 5662-5/5 ...

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