Products

Features for the PCM1690

24-Bit Delta-Sigma DAC

8-Channel DAC:High Performance: Differential, f_S = 48 kHz

THD+N: –94 dB

SNR: 113 dB

Dynamic Range: 113 dB

Sampling Rate: 8 kHz to 192 kHz

System Clock: 128 f_S, 192 f_S, 256 f_S, 384 f_S,512 f_S, 768 f_S, 1152 f_S

Differential Voltage Output: 8 V_PP

Analog Lowpass Filter Included 4x/8x Oversampling Digital Filter:Zero Flag

Passband Ripple: ±0.0018 dB

Stop Band Attenuation: –75 dB

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

Description for the PCM1690

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.

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R & D Manager: make new product R & D plan and demonstrate the feasibility of the plan; Supervise and manage the progress and quality of r&d work; Research new product development and propose effective solutions according to customer requirements in different fields

R&d staff: collect and sort out key data; Computer programming; Conducting experiments, tests and analyses; Prepare materials and equipment for experiments, tests and analyses; Record measurement data, make calculations and prepare charts; Conduct statistical surveys

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- Product conception and selection product concept and evaluation product definition and project plan design and development product testing and validation launch to market