| PartNumber | LM4550BVH/NOPB | LM4550BVH | LM4550BVHX |
| Description | Interface - CODECs AC 97 Rev 2.1 Codec with Sample Rate Co | Interface - CODECs NRND, alternate is LM4550BVH/NOPB | Interface - CODECs AC '97 Rev 2.1 Codec with Sample Rate Conversion and National 3D Sound 48-LQFP -40 to 85 |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Category | Interface - CODECs | Interface - CODECs | Interface - CODECs |
| RoHS | Y | N | N |
| Type | Audio CODEC, AC97 | Audio CODEC, AC97 | Audio CODEC, AC97 |
| Resolution | 18 bit | 18 bit | 18 bit |
| Conversion Rate | 48 kHz | 48 kHz | 48 kHz |
| Interface Type | Serial, I2C, I2S, SPI | Serial, I2C, I2S, SPI | Serial, I2C, I2S, SPI |
| Number of ADCs | 2 ADC | 2 ADC | 2 ADC |
| Number of DACs | 2 DAC | 2 DAC | 2 DAC |
| Operating Supply Voltage | 3 V, 5 V | 3 V, 5 V | 3 V, 5 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | LQFP-48 | LQFP-48 | LQFP-48 |
| Packaging | Tray | Tray | Reel |
| Product | Audio CODECs | Audio CODECs | Audio CODECs |
| Series | LM4550B | LM4550B | LM4550B |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Moisture Sensitive | Yes | Yes | - |
| Product Type | CODECs | CODECs | CODECs |
| SNR Signal to Noise Ratio | 89 dB | 89 dB | 90 dB ADC/89 dB DAC |
| Factory Pack Quantity | 250 | 250 | 1000 |
| Subcategory | Interface ICs | Interface ICs | Interface ICs |
| Supply Voltage Max | 5.5 V | 5.5 V | 5.5 V |
| Supply Voltage Min | 3 V | 3 V | 3 V |
| Unit Weight | 0.006409 oz | 0.006409 oz | 0.006409 oz |