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| Part Number | LM4947TL/NOPB | LM4947TLX/NOPB | LM4949TL/NOPB | LM4937TL/NOPB |
|---|---|---|---|---|
| Manufacturer | Texas Instruments | National Semiconductor | National Semiconductor | National Semiconductor |
| Product Status | Active | Active | Active | Active |
| Type | Class D | Class D | Class D | - |
| Output Type | 1-Channel (Mono) with Stereo Headphones | 1-Channel (Mono) with Stereo Headphones | 2-Channel (Stereo) with Stereo Headphones | - |
| Max Output Power x Channels @ Load | 1.19W x 1 @ 8Ohm; 87mW x 2 @ 32Ohm | 1.19W x 1 @ 8Ohm; 87mW x 2 @ 32Ohm | 2.5W x 2 @ 4Ohm; 190mW x 2 @ 16Ohm | - |
| Voltage - Supply | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 2.7V ~ 5.5V | - |
| Features | 3D, Depop, Differential Inputs, I²C, Mute, Shutdown, SPI, Thermal Protection, Volume Control | 3D, Depop, Differential Inputs, I²C, Mute, Shutdown, SPI, Thermal Protection, Volume Control | - | |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | - |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | - |
| Supplier Device Package | 25-DSBGA | 25-uSMD | 25-µSMD (2.7x2.7) | - |
| Package / Case | 25-WFBGA, DSBGA | 25-WFBGA | 25-WFBGA | - |
