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Details, datasheet, quote on part number:PCM2705
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Datasheet text preview:
Burr Brown Products from Texas Instruments
PCM2704, PCM2705 PCM2706, PCM2707
SLES081A - JUNE 2003 REVISED MAY 2004
STEREO AUDIO DAC WITH USB INTERFACE, SINGLE ENDED HEADPHONE OUTPUT AND S/PDIF OUTPUT
FEATURES D On-Chip USB Interface:
- 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
D 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: - Lead-Free Product - 28-Pin SSOP (PCM2704/5) - 32-Pin TQFP (PCM2706/7)
D
D Sampling Rate: 32, 44.1, 48 kHz D On-Chip Clock Generator:
Single 12-MHz Clock Source
D Single Power Supply:
- Bus-Powered: 5 V, Typical (VBUS) - Self-Powered: 3.3 V, Typical
D 16-Bit Delta-Sigma Stereo DAC
- Analog Performance at 5 V (Bus), 3.3 V (Self): - THD+N: 0.006% (RL > 10 k, Self-Powered) - THD+N: 0.025% (RL = 32 ) - SNR: 98 dB - Dynamic Range: 98 dB - PO: 12 mW (RL = 32 ) - Oversampling Digital Filter - Pass-Band Ripple: ±0.04 dB - Stop-Band Attenuation: 50 dB - Single-Ended Voltage Output - Analog LPF Included
APPLICATIONS D USB Headphones D USB Audio Speaker D USB CRT/LCD Monitor D USB Audio Interface Box D USB-Featured Consumer Audio Product DESCRIPTION
The PCM2704/5/6/7 is TI's single-chip USB stereo audio DAC with USB 1.1 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 parts (for example, vendor ID/product ID) through the use of an external ROM (PCM2704/6) SPI (PCM2705/7) or on request. 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.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 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; please contact your representative for details. SpAct is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
Copyright 2004, Texas Instruments Incorporated
PCM2704, PCM2705 PCM2706, PCM2707
SLES081A - JUNE 2003 REVISED MAY 2004
www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
PACKAGE ORDERING INFORMATION(1)
PRODUCT PACKAGE-LEAD PACKAGE CODE OPERATING TEMPERATURE RANGE 25°C to 85°C 25°C to 85°C 25°C to 85°C 25°C to 85°C PACKAGE MARKING PCM2704 PCM2705 PCM2706 PCM2707 ORDERING NUMBER PCM2704DB PCM2704DBR PCM2705DB PCM2705DBR PCM2706PJT PCM2706PJTR PCM2707PJT PCM2707PJTR TRANSPORT MEDIA Tube Tape and reel Tube Tape and reel Tray Tape and reel Tray Tape and reel
PCM2704DB PCM2705DB PCM2706PJT PCM2707PJT
SSOP-28 SSOP-28 TQFP-32 TQFP-32
28DB 28DB 32PJT 32PJT
(1) For the most current specification and package information, refer to our Web site at www.ti.com.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range unless otherwise noted(1) UNITS Supply voltage Supply voltage differences Ground voltage differences Digital input voltage VBUS VCCP, VCCL, VCCR, VDD VCCP, VCCL, VCCR, VDD PGND, AGNDL, AGNDR, DGND, ZGND HOST D+, D, HID0/MS, HID1/MC, HID2/MD, XTI, XTO, DOUT, SSPND, CK, DT, PSEL, FSEL, TEST, TEST0, TEST1, FUNC0, FUNC1, FUNC2, FUNC3 VCOM VOUTR 0.3 V to 6.5 V 0.3 V to 4 V ±0.1 V ±0.1 V 0.3 V to 6.5 V 0.3 V to (VDD + 0.3) V < 4 V 0.3 V to (VCCP + 0.3) V < 4 V 0.3 V to (VCCR + 0.3) V < 4 V 0.3 V to (VCCL + 0.3) V < 4 V ±10 mA 40°C to 125°C 55°C to 150°C 150°C 260°C, 5 s 260°C
Analog input voltage
VOUTL Input current (any pins except supplies) Ambient temperature under bias Storage temperature Junction temperature Lead temperature (soldering) Package temperature (IR reflow, peak)
(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
2
www.ti.com
PCM2704, PCM2705 PCM2706, PCM2707
SLES081A - JUNE 2003 REVISED MAY 2004
ELECTRICAL CHARACTERISTICS
all specifications at TA = 25°C, VBUS = 5 V, fS = 44.1 kHz, fIN = 1 kHz,16-bit data, unless otherwise noted PARAMETER DIGITAL INPUT/OUTPUT Host interface Audio data format INPUT LOGIC VIH VIL VIH(1) VIL(1) IIH(2) IIL(2) IIH Input logic current 2 Input logic level 0.3 2 0.3 VIN = 3.3 V VIN = 0 V VIN = 3.3 V VIN = 0 V IOH = 2 mA IOL = 2 mA IOH = 2 mA IOL = 2 mA 2.8 0.3 2.4 0.4 11.994 12 32, 44.1, 48 16 1, 2 ±2 ±2 ±3 RL > 10 k, self-powered RL > 10 k, bus-powered RL = 32 , self-/bus-powered EIAJ, A-weighted EIAJ, A-weighted 90 90 60 0.006% 0.012% 0.025% 2% 98 98 70 dB dB ±8 ±8 ±6 0.01% 0.02% 12.006 MHz kHz Bits Channel % of FSR % of FSR % of FSR VDC 65 3.3 0.8 5.5 0.8 ±10 ±10 100 ±10 µA VDC Apply USB revision 1.1, full-speed USB isochronous data format TEST CONDITIONS PCM2704DB, PCM2705DB, PCM2706PJT PCM2707PJT , MIN TYP MAX UNIT
IIL OUTPUT LOGIC VOH(3) VOL(3) VOH Output logic level
VOL CLOCK FREQUENCY Input clock frequency, XTI fs Sampling frequency DAC CHARACTERISTICS Resolution Audio data channel DC ACCURACY Gain mismatch, channel-to-channel Gain error Bipolar zero error DYNAMIC PERFORMANCE(4) THD+N, VOUT = 0 dB THD+N, VOUT = 60 dB Dynamic range S/N ratio Channel separation Line(5) Headphone
dB (1) HOST (2) D+, D, HOST, TEST, TEST0, TEST1, DT, PSEL, FSEL, XTI (3) FUNC0, FUNC1, FUNC2 (4) fIN = 1 kHz, using the System Twot Cascade audio measurement system by Audio Precisiont in the RMS mode with a 20-kHz LPF and 400-Hz HPF. (5) THD+N performance varies slightly depending on the effective output load, including dummy load R7, R8 in Figure 31.
System Two and Audio Precision are trademarks of Audio Precision, Inc. 3
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