PCM1690系列介绍资料

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PCM1690

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具有差动输出的 113dB SNR 8 通道音频 DAC

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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, 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:
  - 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

Number of DAC channels	8
Analog inputs	0
Analog outputs	8
DAC SNR (typ) (dB)	113
Sampling rate (max) (kHz)	192
Control interface	H/W, I2C, SPI
Resolution (Bits)	24
Architecture	Current Segment DAC
Operating temperature range (°C)	-40 to 85
Rating	Catalog

HTSSOP (DCA)

101.25 mm² 12.5 x 8.1

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PCM1690

具有差动输出的 113dB SNR 8 通道音频 DAC

4000-306-326