PCM2705C Series

98dB SNR Stereo Full Speed DAC with line-out and S/PDIF output, Bus/Self-powered (S/W Control)

Catalog

98dB SNR Stereo Full Speed DAC with line-out and S/PDIF output, Bus/Self-powered (S/W Control)

Part	Package / Case [custom]	Package / Case	Package / Case [custom]	Operating Temperature [Min]	Operating Temperature [Max]	Supplier Device Package	Type	Number of Channels [custom]	Resolution (Bits)	Mounting Type	Sampling Rate (Per Second)	Voltage Supply Source	Voltage - Supply [Min]	Voltage - Supply [Max]	Voltage - Supply	Data Interface	Function	Supplied Contents	Utilized IC / Part
Texas Instruments PCM2705DBR	0.209 in	28-SSOP	5.3 mm	-25 °C	85 °C	28-SSOP	Audio	2	16 b	Surface Mount	48 k	Analog and Digital	3 V	3.6 V	5 V	SPI USB
Texas Instruments PCM2705DBRG4	0.209 in	28-SSOP	5.3 mm	-25 °C	85 °C	28-SSOP	Audio	2	16 b	Surface Mount	48 k	Analog and Digital	3 V	3.6 V	5 V	SPI USB
Texas Instruments PCM2705EVM-U							Audio										Audio/Stereo DAC	Board(s)	PCM2705
Texas Instruments PCM2705CDB	0.209 in	28-SSOP	5.3 mm	-25 °C	85 °C	28-SSOP	Audio	2	16 b	Surface Mount	48 k	Analog and Digital	3 V	3.6 V	5 V	SPI USB
Texas Instruments PCM2705CDBR	0.209 in	28-SSOP	5.3 mm	-25 °C	85 °C	28-SSOP	Audio	2	16 b	Surface Mount	48 k	Analog and Digital	3 V	3.6 V	5 V	SPI USB

Catalog

98dB SNR Stereo Full Speed DAC with line-out and S/PDIF output, Bus/Self-powered (S/W Control)

Key Features

• On-Chip USB Interface:No Dedicated Device Driver NeededFull-Speed TransceiversFully Compliant With USB 2.0 SpecificationUSB 1.1 Descriptors With USB AudioClass SupportCertified by USB-IFPartially Programmable DescriptorsAdaptive Isochronous Transfer for PlaybackBus-Powered or Self-Powered OperationSampling Rates: 32 kHz, 44.1 kHz, and 48 kHzOn-Chip Clock Generator With Single 12-MHzClock SourceSingle Power Supply:Bus-Powered: 5 V, Typical (VBUS)Self-Powered: 3.3 V, Typical16-Bit Delta-Sigma Stereo DACAnalog Performance at 5 V (Bus-Powered),3.3 V (Self-Powered):THD + N: 0.006% RL> 10 kΩ, Self-PoweredTHD + N: 0.025% RL= 32 ΩSNR = 98 dBDynamic Range: 98 dBPO= 12 mW, RL= 32 ΩOversampling Digital FilterPassband Ripple = ±0.04 dBStop-Band Attenuation = –50 dBSingle-Ended Voltage OutputAnalog LPF IncludedMultiple Functions:Up to Eight Human Interface Device (HID)Interfaces (Model and Setting Dependent)Suspend FlagS/PDIF Out With SCMSExternal ROM Interface (PCM2704C/6C)Serial Programming Interface (PCM2705C/7C)I2S Interface (Selectable on PCM2706C/7C)On-Chip USB Interface:No Dedicated Device Driver NeededFull-Speed TransceiversFully Compliant With USB 2.0 SpecificationUSB 1.1 Descriptors With USB AudioClass SupportCertified by USB-IFPartially Programmable DescriptorsAdaptive Isochronous Transfer for PlaybackBus-Powered or Self-Powered OperationSampling Rates: 32 kHz, 44.1 kHz, and 48 kHzOn-Chip Clock Generator With Single 12-MHzClock SourceSingle Power Supply:Bus-Powered: 5 V, Typical (VBUS)Self-Powered: 3.3 V, Typical16-Bit Delta-Sigma Stereo DACAnalog Performance at 5 V (Bus-Powered),3.3 V (Self-Powered):THD + N: 0.006% RL> 10 kΩ, Self-PoweredTHD + N: 0.025% RL= 32 ΩSNR = 98 dBDynamic Range: 98 dBPO= 12 mW, RL= 32 ΩOversampling Digital FilterPassband Ripple = ±0.04 dBStop-Band Attenuation = –50 dBSingle-Ended Voltage OutputAnalog LPF IncludedMultiple Functions:Up to Eight Human Interface Device (HID)Interfaces (Model and Setting Dependent)Suspend FlagS/PDIF Out With SCMSExternal ROM Interface (PCM2704C/6C)Serial Programming Interface (PCM2705C/7C)I2S Interface (Selectable on PCM2706C/7C)

Description

The PCM270xC are TI’s single-chip USB stereo audio digital-to-analog converters (DACs) with USB 2.0 compliant full-speed protocol controller and S/PDIF. The USB-protocol controller works with no software code, but USB descriptors can be modified in some areas (for example, vendor ID/product ID) through the use of an external ROM (PCM2704C and PCM2706C) or serial peripheral interface (SPI) (PCM2705C and PCM2707C). The PCM270xC also employ SpAct architecture, TI's unique system that recovers the audio clock from USB packet data. On-chip analog phase-locked loops (PLLs) with SpAct enable playback with low clock jitter. The PCM270xC are TI’s single-chip USB stereo audio digital-to-analog converters (DACs) with USB 2.0 compliant full-speed protocol controller and S/PDIF. The USB-protocol controller works with no software code, but USB descriptors can be modified in some areas (for example, vendor ID/product ID) through the use of an external ROM (PCM2704C and PCM2706C) or serial peripheral interface (SPI) (PCM2705C and PCM2707C). The PCM270xC also employ SpAct architecture, TI's unique system that recovers the audio clock from USB packet data. On-chip analog phase-locked loops (PLLs) with SpAct enable playback with low clock jitter.