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Vedi Specifiche Tecniche

PCM2704 +BOM

98dB SNR Stereo USB2.0 FS DAC with line-out and S/PDIF output, Bus/Self-powered (Ext. ROM Interface)

Produttore:

TI
ProduttorePart #:

PCM2704
Scheda dati:

PCM2704 Scheda dati (PDF)
Number Of DAC Channels:

0
Analog Inputs:

0
Analog Outputs:

2
DAC SNR (typ) (dB):

0

E-mail: [email protected]

Skype: live:.cid.ab6b29428937b76

tel: +852 95804164

PCM2704 Descrizione generale

The PCM2704/5/6/7 is TI's single-chip USB stereo audio DAC with USB-compliant full-speed protocol controller and S/PDIF. The USB-protocolcontroller works with no software code, but USB descriptors can be modified in some parts (for example, vendor ID/product ID) through the use of an external ROM (PCM2704/6), SPI (PCM2705/7), or on request. The modification of the USB descriptor through external ROM or SPI must comply with USB-IF guidelines, and the vendor ID must be your own ID as assigned by the USB-IF. The descriptor also can be modified by changing a mask; contact your representative for details. The PCM2704/5/6/7 employs SpAct architecture, TI's unique system that recovers the audio clock from USB packet data. On-chip analog PLLs with SpAct enable playback with low clock jitter.

Caratteristiche principali

On-Chip USB Interface:
- No Need of Dedicated Device Driver
- With Full-Speed Transceivers
- Fully Compliant With USB 1.1 Specification
- Certified by USB-IF
- Partially Programmable Descriptors
- Adaptive Isochronous Transfer for Playback
- Bus-Powered or Self-Powered Operation
Sampling Rate: 32, 44.1, 48 kHz
On-Chip Clock Generator With Single 12-MHz Clock Source
Single Power Supply:
- Bus-Powered: 5 V, Typical (V_BUS)
- Self-Powered: 3.3 V, Typical
16-Bit Delta-Sigma Stereo DAC
- Analog Performance at 5 V (Bus-Powered),
  3.3 V (Self-Powered): THD+N: 0.006% R_L > 10 kΩ, Self-Powered THD+N: 0.025% R_L = 32 Ω SNR = 98 dB Dynamic Range: 98 dB P_O = 12 mW, R_L = 32 Ω
- Oversampling Digital Filter Pass-Band Ripple = ±0.04 dBStop-Band Attenuation = -50 dB
- Single-Ended Voltage Output
- Analog LPF Included
Multiple Functions:
- Up to Eight Human Interface Device (HID) Interfaces (Depending on Model and Settings)
- Suspend Flag
- S/PDIF Out With SCMS
- External ROM Interface (PCM2704/6)
- Serial Programming Interface (PCM2705/7)
- I²S Interface (Selectable on PCM2706/7)
Package:

Specifiche

Number of DAC channels	0	Analog inputs	0
Analog outputs	2	DAC SNR (typ) (dB)	0
Sampling rate (max) (kHz)	48	Control interface	HID
Resolution (Bits)	16	Architecture	USB 2.0
Operating temperature range (°C)	-25 to 85	Rating	Catalog

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