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TPA2018D1YZFR Datasheet(PDF) 1 Page - Texas Instruments |
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TPA2018D1YZFR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 36 page 1 FEATURES DESCRIPTION SIMPLIFIED APPLICATION DIAGRAM APPLICATIONS IN- IN+ PGND OUT+ OUT- ToBattery SDA SCL EN MasterEnable TPA2018D1 Digital BaseBand Analog Baseband or CODEC PVDD 10 F m C 1 F (Optional) IN m I CClock 2 I CData 2 TPA2018D1 www.ti.com ................................................................................................................................................................................................ SLOS592 – AUGUST 2009 3-W Mono Class-D Audio Amplifier with SmartGain™ AGC/DRC 23 • Filter-Free Class-D Architecture The TPA2018D1 is a mono, filter-free Class-D audio power amplifier with volume control, dynamic range • 3 W Into 4 Ω at 5 V (10% THD+N) compression (DRC) and automatic gain control • 880 mW Into 8 Ω at 3.6 V (10% THD+N) (AGC). It is available in a 1.63 mm x 1.63 mm WCSP • Power Supply Range: 2.5 V to 5.5 V package. • Flexible Operation With/Without I2C™ The DRC/AGC function in the TPA2018D1 is • Programmable DRC/AGC Parameters programmable via a digital I2C interface. The DRC/AGC function can be configured to automatically • Digital I2C™ Volume Control prevent distortion of the audio signal and enhance • Selectable Gain from –28 dB to 30 dB in 1-dB quiet passages that are normally not heard. The Steps (when compression is used) DRC/AGC can also be configured to protect the • Selectable Attack, Release and Hold Times speaker from damage at high power levels and compress the dynamic range of music to fit within the • 4 Selectable Compression Ratios dynamic range of the speaker. The gain can be • Low Supply Current: 1.8 mA selected from –28 dB to +30 dB in 1-dB steps. The • Low Shutdown Current: 0.2 µA TPA2018D1 is capable of driving 3 W at 5 V into 4 Ω load or 880 mW at 3.6 V into 8 Ω load. The device • High PSRR: 80 dB features hardware and software shutdown controls • Fast Start-up Time: 5 ms and also provides thermal and short-circuit protection. • AGC Enable/Disable Function In addition to these features, a fast start-up time and • Limiter Enable/Disable Function small package size make the TPA2018D1 an ideal • Short-Circuit and Thermal Protection choice for cellular handsets, PDAs and other portable applications. • Space-Saving Package – 1,63 mm × 1,63 mm Nano-Free™ WCSP (YZF) • Wireless or Cellular Handsets and PDAs • Portable Navigation Devices • Portable DVD Player • Notebook PCs • Portable Radio • Portable Games • Educational Toys • USB Speakers 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 SmartGain, Nano-Free are trademarks of Texas Instruments. 3 I2C is a trademark of NXP Semiconductors. PRODUCTION DATA information is current as of publication date. Copyright © 2009, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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