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2,010 pcs
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2010 pcs | On Request | 1 | On Request | On Request | 24+ | On Request | On Request |
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The LM49450SQ is a stereo, digital input Class-D amplifier from Texas Instruments, designed for audio applications. It offers a 2.5W output per channel into a 4Ω load with THD+N ≤ 10%, and a 1.25W output per channel into an 8Ω load with THD+N ≤ 1%. The device also features a ground-referenced headphone amplifier capable of delivering 36mW into 32Ω with THD+N ≤ 1%.
This amplifier supports an I2S compatible audio interface and operates with an analog supply voltage ranging from 2.7V to 5.5V. It includes TI's 3D enhancement technology and a 32-step digital volume control. The LM49450SQ is designed for low EMI with filterless Class D operation and a selectable spread spectrum mode. It is available in a space-saving 32-pin WQFN package measuring 5 mm x 5 mm.
Key electrical specifications include a typical THD+N of 0.06% at 1kHz, a minimum load impedance of 4Ω, and a typical SNR at the headphone output of 102dBA. The device also incorporates output short circuit protection and thermal overload protection, along with click and pop suppression and micro-power shutdown features.
The analog supply voltage and power stage supply voltage both range from 2.7V to 5.5V.
It is available in a 32-pin WQFN package measuring 5mm x 5mm.
The operating temperature range is -40°C to 85°C.
Speaker output: 2.5W into 4Ω (THD+N ≤10%), 1.25W into 8Ω (THD+N ≤1%). Headphone output: 36mW into 32Ω and 34mW into 16Ω (THD+N ≤1%).
THD+N is typically 0.06% at 1kHz.
It uses an I2C control interface.
The DAC resolution is 24-bit.