PCM1681 Datasheet PDF

●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.

● Qualified for Automotive Applications: PCM1681-

●Q1

● 24-Bit Resolution

● Analog Performance:

● Dynamic Range: 105 dB Typical

● SNR: 105 dB Typical

● THD+N: 0.002% Typical

● Full-Scale Output: 3.75 VPP Typical

● 4×/8× Oversampling Interpolation Filter:

● Stop-Band Attenuation: –57 dB

● Pass-Band Ripple: ±0.015 dB

● Sampling Frequency: 5 kHz to 200 kHz

● System Clock: 128 fS, 192 fS, 256 fS, 384 fS,

●512 fS, 768 fS, or 1152 fS with Autodetect

● Zero Flags for Selectable Channel Combinations

● Flexible Mode Control:

● SPI™/I2C™ Dual Mode for Serial Port

● Parallel Hardware Control with 4 Functions

● User-Programmable Functions (in SPI/I2C):

● Flexible Audio Data Formats:

● Right-Justified, I2S™, Left-Justified, TDM,

●DSP

● 16- and 24-Bit Audio Data

● Digital Attenuation: Mode Selectable

● 0 dB to –63 dB, 0.5 dB/step

● 0 dB to –100 dB, 1 dB/step

● Soft Mute

● Digital De-Emphasis

● Digital Filter Roll-Off: Sharp or Slow

● Oversampling Mode

● User-Programmable Functions (in H/W):

● Flexible Audio Data Formats:

● Right-Justified, I2S, Left-Justified, TDM

● Soft Mute

● Digital De-Emphasis

● Oversampling Mode

● Power Supply Voltage: 5-V Analog, 3.3-V Digital

● Package: 28-Lead HTSSOP PowerPAD

● Operation Temperature Range:

● –40°C to 85°C for Consumer Grade

● –40°C to 105°C for Automotive Audio Grade