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| Part Number | LM4681SQ/NOPB | LM4682SQ/NOPB | LM4681SQX/NOPB |
|---|---|---|---|
| Manufacturer | Texas Instruments | National Semiconductor | Texas Instruments |
| Product Status | Obsolete | Obsolete | Obsolete |
| Type | Class D | Class D | Class D |
| Output Type | 2-Channel (Stereo) with Stereo Headphones | 2-Channel (Stereo) with Stereo Headphones | 2-Channel (Stereo) with Stereo Headphones |
| Max Output Power x Channels @ Load | 10W x 2 @ 8Ohm; 94mW x 2 @ 32Ohm | 10W x 2 @ 8Ohm; 80mW x 2 @ 32Ohm | 10W x 2 @ 8Ohm; 94mW x 2 @ 32Ohm |
| Voltage - Supply | 9V ~ 15.5V | 8.5V ~ 15V | 9V ~ 15.5V |
| Features | Depop, I²C, Mute, Short-Circuit and Thermal Protection, Shutdown, SPI, Volume Control | Depop, Mute, PWM, Short-Circuit and Thermal Protection, Shutdown, Volume Control | Depop, I²C, Mute, Short-Circuit and Thermal Protection, Shutdown, SPI, 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 | 48-WQFN (7x7) | 48-WQFN (7x7) | 48-WQFN (7x7) |
| Package / Case | 48-WFQFN Exposed Pad | 48-WFQFN Exposed Pad | 48-WFQFN Exposed Pad |
