Catalog
105dB SNR 8-Channel Audio DAC (Automotive Catalog)
Key Features
• Qualified for Automotive Applications: PCM1681-Q124-Bit ResolutionAnalog Performance:Dynamic Range: 105 dB TypicalSNR: 105 dB TypicalTHD+N: 0.002% TypicalFull-Scale Output: 3.75 VPPTypical4×/8× Oversampling Interpolation Filter:Stop-Band Attenuation: –57 dBPass-Band Ripple: ±0.015 dBSampling Frequency: 5 kHz to 200 kHzSystem Clock: 128 fS, 192 fS, 256 fS, 384 fS,512 fS, 768 fS, or 1152 fSwith AutodetectZero Flags for Selectable Channel CombinationsFlexible Mode Control:SPI™/I2C™ Dual Mode for Serial PortParallel Hardware Control with 4 FunctionsUser-Programmable Functions (in SPI/I2C):Flexible Audio Data Formats:Right-Justified, I2S™, Left-Justified, TDM,DSP16- and 24-Bit Audio DataDigital Attenuation: Mode Selectable0 dB to –63 dB, 0.5 dB/step0 dB to –100 dB, 1 dB/stepSoft MuteDigital De-EmphasisDigital Filter Roll-Off: Sharp or SlowOversampling ModeUser-Programmable Functions (in H/W):Flexible Audio Data Formats:Right-Justified, I2S, Left-Justified, TDMSoft MuteDigital De-EmphasisOversampling ModePower Supply Voltage: 5-V Analog, 3.3-V DigitalPackage: 28-Lead HTSSOP PowerPADOperation Temperature Range:–40°C to 85°C for Consumer Grade–40°C to 105°C for Automotive Audio GradeQualified for Automotive Applications: PCM1681-Q124-Bit ResolutionAnalog Performance:Dynamic Range: 105 dB TypicalSNR: 105 dB TypicalTHD+N: 0.002% TypicalFull-Scale Output: 3.75 VPPTypical4×/8× Oversampling Interpolation Filter:Stop-Band Attenuation: –57 dBPass-Band Ripple: ±0.015 dBSampling Frequency: 5 kHz to 200 kHzSystem Clock: 128 fS, 192 fS, 256 fS, 384 fS,512 fS, 768 fS, or 1152 fSwith AutodetectZero Flags for Selectable Channel CombinationsFlexible Mode Control:SPI™/I2C™ Dual Mode for Serial PortParallel Hardware Control with 4 FunctionsUser-Programmable Functions (in SPI/I2C):Flexible Audio Data Formats:Right-Justified, I2S™, Left-Justified, TDM,DSP16- and 24-Bit Audio DataDigital Attenuation: Mode Selectable0 dB to –63 dB, 0.5 dB/step0 dB to –100 dB, 1 dB/stepSoft MuteDigital De-EmphasisDigital Filter Roll-Off: Sharp or SlowOversampling ModeUser-Programmable Functions (in H/W):Flexible Audio Data Formats:Right-Justified, I2S, Left-Justified, TDMSoft MuteDigital De-EmphasisOversampling ModePower Supply Voltage: 5-V Analog, 3.3-V DigitalPackage: 28-Lead HTSSOP PowerPADOperation Temperature Range:–40°C to 85°C for Consumer Grade–40°C to 105°C for Automotive Audio Grade
Description
AI
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.
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.
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.
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.
