SGM4895 Datasheet, PDF (1/13 Pages) SG Micro Corp – Audio Power Amplifier

SGM4895
1.3W Fully Differential
Audio Power Amplifier
GENERAL DESCRIPTION
FEATURES
The SGM4895 is a fully differential audio power amplifier
that is designed for portable communication device
applications and demanding applications in mobile
phones. It is capable of delivering 1.3W of continuous
average power into an 8Ω load with typically 1%
distortion (THD+N) from a 5V battery voltage. It operates
from 2.5V to 5.5V power supply.
The SGM4895 features a low power consumption
shutdown mode. To facilitate this, shutdown may be
enabled by logic low. Additionally, the SGM4895 features
an internal thermal shutdown protection mechanism.
The SGM4895 contains advanced pop/click circuitry, with
a minimal amount of external components. All these
features make SGM4895 ideal for wireless handsets and
other low voltage applications where minimal power
consumption is a primary requirement.
 Fully Differential Amplifier
 Excellent PSRR: Direct Connection to Battery
 1.3W into 8Ω Load from 5V Supply at
THD+N = 1% (TYP)
 1.6W into 4Ω Load from 5V Supply at
THD+N = 1% (TYP, SGM4895YDB8 Only)
 2.5V to 5.5V Operation
 Low Shutdown Current
 Improved Pop/Click Circuitry
 Support Single-Ended or Differential Input
 Thermal Overload Protection Circuitry
 No Output Coupling Capacitors, Bootstrap
Capacitors Required
 External Gain Configuration Capability
 -40℃ to +85℃ Operating Temperature Range
 Green TDFN-3×3-8L and MSOP-8 (Exposed Pad)
Packages
The SGM4895 is available in Green TDFN-3×3-8L and
MSOP-8 (Exposed Pad) packages. It operates over an
ambient temperature range of -40℃ to +85℃.
APPLICATIONS
Portable Systems
Wireless Handsets
Mobile Phone
Handheld Computers
PDAs
GPS
SG Micro Corp
www.sg-micro.com
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