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| PartNumber | IS31AP4990D-UTLS2-TR | IS31AP4991-GRLS2-T | IS31AP4991-GRLS2-TR |
| Description | Audio Amplifiers 1.2W Audio Pwr Amp | Audio Amplifiers 1.2W Audio Pwr Amp | |
| Manufacturer | ISSI | - | ISSI, Integrated Silicon Solution Inc |
| Product Category | Audio Amplifiers | - | Linear - Amplifiers - Audio |
| Series | IS31AP4990D | - | - |
| Product | Audio Amplifiers | - | - |
| Output Power | 1.2 W | - | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | UTQFN-9 | - | - |
| THD plus Noise | 0.23 % | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Packaging | Reel | - | Digi-ReelR Alternate Packaging |
| Brand | ISSI | - | - |
| Moisture Sensitive | Yes | - | - |
| Product Type | Audio Amplifiers | - | - |
| Factory Pack Quantity | 3000 | - | - |
| Subcategory | Audio ICs | - | - |
| Type | - | - | Class AB |
| Package Case | - | - | 8-SOIC (0.154", 3.90mm Width) |
| Operating Temperature | - | - | -40°C ~ 85°C (TA) |
| Mounting Type | - | - | Surface Mount |
| Output Type | - | - | 1-Channel (Mono) |
| Features | - | - | Depop, Differential Inputs, Standby, Thermal Protection |
| Voltage Supply | - | - | 2.7 V ~ 5.5 V |
| Supplier Device Package | - | - | 8-SOP |
| Max Output Power x Channels Load | - | - | 1.2W x 1 @ 8 Ohm |