圣邦微电子

SGM4863 Dual 2.1W Audio Power Amplifier Plus Stereo Headphone Function

GENERAL DESCRIPTION

The SGM4863 is a dual bridge-connected audio power amplifier which, when connected to a 5V supply, will deliver 2.1W into a 4Ω load or 2.5W into a 3Ω load with typically 1% THD+N. In addition, the headphone input pin allows the amplifiers to operate in single-ended mode when driving stereo headphones.

To simplify audio system design, the SGM4863 combines dual bridge speaker amplifiers and stereo headphone amplifiers on one chip.

The SGM4863 features a low power consumption shutdown mode and thermal shutdown protection. It also utilizes circuitry to reduce “pop/click” during device turn-on.

The SGM4863 is available in Green TSSOP-20 (Exposed Pad), TQFN-3×3-20L, TSSOP-16 (Exposed Pad), SOIC-16 and DIP-16 packages. It operates over an ambient temperature range of -40 to +85.


PIN CONFIGURATIONS


FEATURES


• 2.5W into 3Ω Load from 5V Power Supply at
    THD+N = 1% (Typical, per Channel)
• 2.1W into 4Ω Load from 5V Power Supply at
    THD+N = 1% (Typical, per Channel)
• 1.3W into 8Ω Load from 5V Power Supply at
    THD+N = 1% (Typical, per Channel)
• Low Shutdown Current: 0.03μA
• Operation Supply Voltage: 2.8V to 5.5V
• Stereo Headphone Amplifier Mode
• “Pop/Click” Suppression Circuitry
• Unity-Gain Stable
• Thermal Shutdown Protection Circuitry
• -40
 to +85 Operating Temperature Range
• Available in Green TS
SOP-20 (Exposed Pad),
    TQFN-3×3-20L, TSSOP-16 (Exposed Pad),
    SOIC-16 and DIP-16 Packages

APPLICATIONS

Multimedia Monitors
Portable and Desktop Computers
Portable Televisions


ORDERING INFORMATION

Part Number Status Package Pins Pb-Free Temp Range
SGM4863YPTS20G/TR Production TSSOP-20 (Exposed Pad) 20 Y -40℃ to +85℃ Samples
SGM4863YTQG20G/TR Production TQFN-3×3-20L 20 Y -40℃ to +85℃ Samples
SGM4863YPTS16/TR Production TSSOP-16 (Exposed Pad) 16 Y -40℃ to +85℃ Samples
SGM4863YS16/TR Production SOIC-16 16 Y -40℃ to +85℃ Samples
SGM4863YP16 Production DIP-16 16 Y -40℃ to +85℃ Samples

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