TPA2028 Series
3-W, mono, analog input Class-D audio amp with fast auto. gain control & dynamic range compression
Manufacturer: Texas Instruments
Catalog(1 parts)
| Part | Voltage - Supply▲▼ | Voltage - Supply▲▼ | Mounting Type | Features | Package / Case | Max Output Power x Channels @ Load▲▼ | Max Output Power x Channels @ Load▲▼ | Output Type | Supplier Device Package | Type | Operating Temperature▲▼ | Operating Temperature▲▼ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
2.5 V | 5.5 V | Surface Mount | AGC, Differential Inputs, DRC, I2C, Short-Circuit and Thermal Protection, Shutdown, Volume Control | 9-UFBGA, DSBGA | 1 ul | 3 W | 1-Channel (Mono) | 9-DSBGA | Class D | 85 °C | -40 °C |
Key Features
• Fast AGC Start-up Time: 5 msPinout Compatible with TPA2018D1Filter-Free Class-D Architecture3 W Into 4 Ω at 5 V (10% THD+N)880 mW Into 8 Ω at 3.6 V (10% THD+N)Power Supply Range: 2.5 V to 5.5 VFlexible Operation With/Without I2C™Programmable DRC/AGC ParametersDigital I2C™ Volume ControlSelectable Gain from –28 dB to 30 dB in 1-dBSteps (when compression is used)Selectable Attack, Release and Hold Times4 Selectable Compression RatiosLow Supply Current: 1.8 mALow Shutdown Current: 0.2 µAHigh PSRR: 80 dBAGC Enable/Disable FunctionLimiter Enable/Disable FunctionShort-Circuit and Thermal ProtectionSpace-Saving Package1.63 mm × 1.63 mm Nano-Free™ DSBGA(YZF)APPLICATIONSWireless or Cellular Handsets and PDAsPortable Navigation DevicesPortable DVD PlayerNotebook PCsPortable RadioPortable GamesEducational ToysUSB SpeakersAll other trademarks are the property of their respective ownersFast AGC Start-up Time: 5 msPinout Compatible with TPA2018D1Filter-Free Class-D Architecture3 W Into 4 Ω at 5 V (10% THD+N)880 mW Into 8 Ω at 3.6 V (10% THD+N)Power Supply Range: 2.5 V to 5.5 VFlexible Operation With/Without I2C™Programmable DRC/AGC ParametersDigital I2C™ Volume ControlSelectable Gain from –28 dB to 30 dB in 1-dBSteps (when compression is used)Selectable Attack, Release and Hold Times4 Selectable Compression RatiosLow Supply Current: 1.8 mALow Shutdown Current: 0.2 µAHigh PSRR: 80 dBAGC Enable/Disable FunctionLimiter Enable/Disable FunctionShort-Circuit and Thermal ProtectionSpace-Saving Package1.63 mm × 1.63 mm Nano-Free™ DSBGA(YZF)APPLICATIONSWireless or Cellular Handsets and PDAsPortable Navigation DevicesPortable DVD PlayerNotebook PCsPortable RadioPortable GamesEducational ToysUSB SpeakersAll other trademarks are the property of their respective owners
Description
AI
The TPA2028D1 device is a mono, filter-free Class-D audio power amplifier with volume control, fast gain ramp SmartGain, dynamic range compression (DRC), and automatic gain control (AGC). It is available in a 1.63 mm × 1.63 mm wafer chip-scale package (DSBGA).
The DRC/AGC function in the TPA2028D1 device is programmable through a digital I2C interface. The DRC/AGC function can be configured to automatically prevent distortion of the audio signal and enhance quiet passages that are normally not heard. The DRC/AGC can also be configured to protect the speaker from damage at high power levels and compress the dynamic range of music to fit within the dynamic range of the speaker. The gain can be selected from –28 dB to +30 dB in 1-dB steps. The TPA2028D1 is capable of driving 3 W at 5 V into a 4-Ω load or 880 mW at 3.6 V into an 8-Ω load. The device features hardware and software shutdown controls and also provides thermal and short-circuit protection. The TPA2028D1 has a faster AGC gain ramp during start-up than TPA2018D1.
In addition to these features, a fast start-up time and small package size make the TPA2028D1 an ideal choice for cellular handsets, PDAs and other portable applications.
The TPA2028D1 device is a mono, filter-free Class-D audio power amplifier with volume control, fast gain ramp SmartGain, dynamic range compression (DRC), and automatic gain control (AGC). It is available in a 1.63 mm × 1.63 mm wafer chip-scale package (DSBGA).
The DRC/AGC function in the TPA2028D1 device is programmable through a digital I2C interface. The DRC/AGC function can be configured to automatically prevent distortion of the audio signal and enhance quiet passages that are normally not heard. The DRC/AGC can also be configured to protect the speaker from damage at high power levels and compress the dynamic range of music to fit within the dynamic range of the speaker. The gain can be selected from –28 dB to +30 dB in 1-dB steps. The TPA2028D1 is capable of driving 3 W at 5 V into a 4-Ω load or 880 mW at 3.6 V into an 8-Ω load. The device features hardware and software shutdown controls and also provides thermal and short-circuit protection. The TPA2028D1 has a faster AGC gain ramp during start-up than TPA2018D1.
In addition to these features, a fast start-up time and small package size make the TPA2028D1 an ideal choice for cellular handsets, PDAs and other portable applications.