The PCM1690 device is a high-performance, single-chip, 24-bit, eight-channel, audio digital-to-analog converter (DAC) with differential outputs. The eight-channel, 24-bit DAC employs an enhanced, multi-level delta-sigma (ΔΣ) modulator and supports 8-kHz to 192-kHz sampling rates and a 16-/20-/24-/32-bit width digital audio input word on the audio interface. The audio interface of the PCM1690 supports the time-division-multiplexed (TDM) format in addition to the standard I2S, left-justified, right-justified, and DSP formats.
●The PCM1690 can be controlled through a three-wire, SPI-compatible interface, or two-wire, I2C-compatible serial interface in software, which provides access to all functions including digital attenuation, soft mute, de-emphasis, and so forth. Also, hardware control mode provides a subset of user-programmable functions through two control pins. The PCM1690 is available in a 12-mm × 8-mm (12-mm × 6-mm body) HTSSOP-48 package.
●For all available packages, see the orderable addendum at the end of the data sheet.
● 24-Bit Delta-Sigma DAC
● 8-Channel DAC:
● High Performance: Differential, fS = 48 kHz
● THD+N: 94 dB
● SNR: 113 dB
● Dynamic Range: 113 dB
● Sampling Rate: 8 kHz to 192 kHz
● System Clock: 128 fS, 192 fS, 256 fS, 384 fS,
●512 fS, 768 fS, 1152 fS
● Differential Voltage Output: 8 VPP
● Analog Lowpass Filter Included
● 4x/8x Oversampling Digital Filter:
● Passband Ripple: ±0.0018 dB
● Stop Band Attenuation: 75 dB
● Zero Flag
● Flexible Audio Interface:
● I/F Format: I2S™, Left-/Right-Justified, DSP,
●TDM
● Data Length: 16, 20, 24, 32 Bits
● Flexible Mode Control:
● 3-Wire SPI, 2-Wire I2C-Compatible Serial
●Control Interface, or Hardware Control
● Multiple Functions Through SPI or I2C I/F:
● Audio I/F Format Select: I2S, Left-Justified,
●Right-Justified, DSP, TDM
● Digital Attenuation and Soft Mute
● Digital De-Emphasis: 32 kHz, 44.1 kHz,
●48 kHz
● Data Polarity Control
● Power Down
● Multiple Functions Through H/W Control:
● Audio I/F Format Select: I2S, TDM
● Digital De-Emphasis Filter: 44.1 kHz
● Analog Mute by Clock Halt Detection
● External RESET Pin
● Power Supplies:
● 5 V for Analog and 3.3 V for Digital
● Package: HTSSOP-48
● Operating Temperature Range:
● 40°C to +85°C
