| Part Number | LM4937RLX/NOPB | LM4937TLX/NOPB |
|---|---|---|
| Manufacturer | National Semiconductor | Texas Instruments |
| Category | Linear - Amplifiers - Audio | Linear - Amplifiers - Audio |
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| Product Status | Obsolete | Discontinued at Digi-Key |
| Type | Class AB | Class AB |
| Output Type | 1-Channel (Mono) with Mono and Stereo Headphones | 1-Channel (Mono) with Mono and Stereo Headphones |
| Max Output Power x Channels @ Load | 1.25W x 1 @ 8Ohm; 80mW x 2 @ 32Ohm | 1.25W x 1 @ 8Ohm; 80mW x 2 @ 32Ohm |
| Voltage - Supply | 2.7V ~ 5.5V | 2.7V ~ 5.5V |
| Features | Depop, Differential Inputs, I²C, I²S, Mute, Shutdown, SPI, Volume Control | Depop, Differential Inputs, I²C, I²S, Mute, Shutdown, SPI, Volume Control |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Supplier Device Package | 36-DSBGA | 36-uSMD |
| Package / Case | 36-WFBGA, DSBGA | 36-WFBGA |