DEM-PCM2702 evaluation platform Burr-Brown's PCM2702E stereo audio Dig

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DEM-PCM2702 evaluation platform Burr-Brown's PCM2702E stereo audio Dig

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DEM-PCM2702 EVALUATION FIXTURE
DEM-PCM2702 evaluation platform Burr-Brown's PCM2702E stereo audio Digital-toAnalog Converter (DAC) with on-chip Universal Serial (USB) interface controller. board includes necessary power supply interface connectors needed customer demonstration performance measurements.
FEATURES
COMPLETE EVALUATION FIXTURE PCM2702E DIGITAL-TOANALOG CONVERTER ON-BOARD OUTPUT FILTER USING OPA2353UA DUAL CMOS 3.5mm STEREO MINI JACK LINE LEVEL OUTPUTS PLUG-AND-PLAY OPERATION- SPECIAL SOFTWARE REQUIRED(1) EXTERNAL POWER SUPPLY REQUIRED(2)
NOTES: Requires Microsoft Windows® later, which includes standard device drivers audio playback. PCM2702E self-powered device, defined Revision specification. Therefore, requires external power supply. Bus-powered operation supported evaluation purposes only. PCM2702E compliant with specifications when utilized buspowered device. Windows® registered trademark Microsoft Corp.
BLOCK DIAGRAM
12MHz XTAL
Series Connector CN001
VBUS PCM2702E
2nd-Order Low-Pass Filter OPA2353 DAC:
CN101 Line (Stereo Mini-Jack)
Power Supply Configuration Power Supply Connector (+6.3VDC max)
JP001 Monitor (LED) DAC: CN002
International Airport Industrial Park Mailing Address: 11400, Tucson, 85734 Street Address: 6730 Tucson Blvd., Tucson, 85706 Tel: (520) 746-1111 Twx: 910-952-1111 Internet: http://www.burr-brown.com/ Cable: BBRCORP Telex: 066-6491 FAX: (520) 889-1510 Immediate Product Info: (800) 548-6132
2000 Burr-Brown Corporation
LI-553
Printed U.S.A. DEM-PCM2702 May, 2000
SBAU025
HARDWARE PCM2702E OUTPUT LOW-PASS FILTERS PCM2702E soldered directly demo board. necessary interface power-supply bypass components included. 12MHz crystal provides reference clock source required on-chip clock generation circuitry. left right audio outputs coupled output filter stage. OPA2353UA dual configured stereo 2nd-order low-pass filter using Multiple FeedBack (MFB) circuit arrangement. biased +2.5 volts connecting PCM2702E's VCOM non-inverting inputs OPA2353UA. outputs active filters coupled 3.5mm stereo mini jack connection powered speakers audio test equipment. CONNECTORS CN001 series connector, which used interface PCM2702E port hub. CN002 power-supply connector, required selfpowered operation. designed with wall-mount power supply. Maximum input voltage +6.3VDC. CN101 stereo line level output jack. Powered speakers connected CN101 demonstration purposes. Alternatively, audio measurement equipment connected here performance evaluation.
POWER SUPPLY CONFIGURATION JP001 used select either self-powered bus-powered operation. Self-powered operation requires external power supply, connected CN002. Bus-powered mode derives power from VBUS port CN001. Figure shows available settings JP001.
Bus-Powered (demonstration only) Self-Powered (requires external supply connector CN002) Unused
FIGURE Power-Supply Configuration Using JP001. INDICATORS Light Emitting Diodes (LED) included visual indication playback status. D004, Playback indicator, illuminated when PCM2702E plays audio data received from bus. D005, Suspend indicator, illuminated when suspends audio data transmission PCM2702E. SCHEMATIC LAYOUT complete circuit diagram DEM-PCM2702 evaluation fixture shown Figure DEM-PCM2702 2-layer printed circuit board. Figure shows printed circuit board layout, including silk screen, layer (component side) bottom layer (solder side).
DEM-PCM2702
D002 1SS133 C012 18pF X001 12MHz R101 TEST0 TEST1 C008 0.1µF C104 1800pF VCCR C009 0.1µF C006 10µF/ C007 10µF/16V C010 0.1µF R106 C011 0.1µF R004 PCM2702 R001 TEST2 TEST3 ZERO SSPND AGNDR PLYBCK VOUTR DGNDU AGND VBUS VCOM R005 VOUTL DGND AGNDL VCCL DGNDC AGNDP VDDC VCCP C103 1800pF C005 0.1µF 1.5k C004 10µF/ R103 3.9k C013 18pF D003 1SS133
R105 C105 330pF
FIGURE Schematic DEM-PCM2702.
U101 OPA2353UA
R107
C109 10µF/16V
CN001 67068-0001 R003
CN101 Stereo MinI Jack YKB21-5274
C106 330pF
Q001 2SC2001
C111 10µF/16V R102 R104 3.9k
U101 OPA2353UA
C003 10µF/ R006 R007 D005 TLR218P D004 TLG218P Q002 DTA143ESA Q003 DTA143ESA
R108
C110 10µF/
CN002 Jack YKB31-016 (6.3V max)
C002 10µF/16V
C001 10µF/
D001 (JUMPER)
DEM-PCM2702
Silk Screen
Component Placement
Layer (component side)
Bottom Layer (solder side)
FIGURE Printed Circuit Board Layout DEM-PCM2702.
DEM-PCM2702
IMPORTANT NOTICE Texas Instruments subsidiaries (TI) reserve right make changes their products discontinue product service without notice, advise customers obtain latest version relevant information verify, before placing orders, that information being relied current complete. products sold subject terms conditions sale supplied time order acknowledgment, including those pertaining warranty, patent infringement, limitation liability. warrants performance semiconductor products specifications applicable time sale accordance with TI's standard warranty. Testing other quality control techniques utilized extent deems necessary support this warranty. Specific testing parameters each device necessarily performed, except those mandated government requirements. Customers responsible their applications using components. order minimize risks associated with customer's applications, adequate design operating safeguards must provided customer minimize inherent procedural hazards. assumes liability applications assistance customer product design. does warrant represent that license, either express implied, granted under patent right, copyright, mask work right, other intellectual property right covering relating combination, machine, process which such semiconductor products services might used. TI's publication information regarding third party's products services does constitute TI's approval, warranty endorsement thereof.
Copyright 2000, Texas Instruments Incorporated

DEM-PCM2702 evaluation platform Burr-Brown's PCM2702E stereo audio Dig

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