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| Part Number | LM1972M/NOPB | LM1972MX/NOPB | LM1973M/NOPB | LM1971M/NOPB |
|---|---|---|---|---|
| Manufacturer | National Semiconductor | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Status | Active | Active | Active | Active |
| Function | Volume Control | Volume Control | Volume Control | Volume Control |
| Applications | Consumer Audio, Professional Audio | Consumer Audio, Professional Audio | Consumer Audio, Professional Audio | Communication Systems |
| Number of Channels | 2 | 2 | 3 | 1 |
| Interface | SPI | SPI | SPI | SPI |
| Voltage - Supply | 4.5V ~ 12V | 4.5V ~ 12V | 4.5V ~ 12V | 4.5V ~ 12V |
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | -40°C ~ 85°C (TA) |
| Specifications | 78dB | 78dB | - | 115dB |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) | 20-SOIC (0.295", 7.50mm Width) | 20-SOIC (0.295", 7.50mm Width) | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 20-SOIC | 20-SOIC | 20-SOIC | 8-SOIC |
