PCM1681-Q1

105dB SNR 8 通道音频 DAC（汽车类）; • Qualified for Automotive Applications: PCM1681- Q1\n• 24-Bit Resolution\n• Analog Performance:\n - Dynamic Range: 105 dB Typical\n• SNR: 105 dB Typical\n• THD+N: 0.002% Typical\n• Full-Scale Output: 3.75 VPP Typical\n• 4×/8× Oversampling Interpolation Filter:\n - Stop-Band Attenuation: –57 dB\n• Pass-Band Ripple: ±0.015 dB\n• Sampling Frequency: 5 kHz to 200 kHz\n• System Clock: 128 fS, 192 fS, 256 fS, 384 fS, 512 fS, 768 fS, or 1152 fS with Autodetect\n• Zero Flags for Selectable Channel Combinations\n• Flexible Mode Control: \n - SPI™/I2C™ Dual Mode for Serial Port\n• Parallel Hardware Control with 4 Functions\n• User-Programmable Functions (in SPI/I2C):\n - Flexible Audio Data Formats: \n - Right-Justified, I2S™, Left-Justified, TDM,DSP\n• 16- and 24-Bit Audio Data\n• Digital Attenuation: Mode Selectable\n - 0 dB to –63 dB, 0.5 dB/step\n• 0 dB to –100 dB, 1 dB/step\n• Soft Mute\n• Digital De-Emphasis\n• Digital Filter Roll-Off: Sharp or Slow\n• Oversampling Mode\n• User-Programmable Functions (in H/W): \n - Flexible Audio Data Formats: \n - Right-Justified, I2S, Left-Justified, TDM\n• Soft Mute\n• Digital De-Emphasis\n• Oversampling Mode\n\n• Power Supply Voltage: 5-V Analog, 3.3-V Digital\n• Package: 28-Lead HTSSOP PowerPAD \n• Operation Temperature Range: \n - –40°C to 85°C for Consumer Grade\n• –40°C to 105°C for Automotive Audio Grade;

The PCM1681 and PCM1681-Q1 are CMOS monolithic integrated circuits which feature an eight-channel 24-bit audio digital-to-analog converter (DAC) and support circuitry in small 28-lead TSSOP PowerPAD packages. The DACs utilize Burr-Brown's enhanced multilevel delta-sigma (ΔΣ) architecture to achieve excellent signal-to-noise performance and a high tolerance to clock jitter.\n The PCM1681 and PCM1681-Q1 accept TDM (time-division multiplexed) format in addition to industry-standard audio data formats with 16- to 24-bit audio data width. Sampling rates up to 200 kHz are supported. The PCM1681 and PCM1681-Q1 provide a sub-set of user-programmable functions through a parallel control port, in addition to a full set of user-programmable functions through a serial control port, SPI, or I2C. The PCM1681 supports –40°C to +85°C for consumer grade applications and the PCM1681-Q1 supports –40°C to +105°C for automotive audio grade systems.\n \n

PCM1681-Q1

24-Bit, 192-kHz Sampling, Enhanced Multilevel Delta-Sigma, Eight-Channel Audio Digital-to-Analog Converter

PCM1681-Q1

24-Bit, 192-kHz Sampling, Enhanced Multilevel Delta-Sigma, Eight-Channel Audio Digital-to-Analog Converter