PCM2900 PCM2902 SLES035E – MARCH 2007 – REVISED MARCH 2008 STEREO AUDIO CODEC WITH USB INTERFACE, SINGLE-ENDED ANALOG INPUT/OUTPUT AND S/PDIF FEATURES 1 • PCM2900: Without S/PDIF • PCM2902: With S/PDIF • On-Chip USB Interface: – With Full-Speed Transceivers – Fully Compliant With USB 1.1 Specification – Certified by USB-IF – Partially Programmable Descriptors (1) – USB Adaptive Mode for Playback – USB Asynchronous Mode for Record – Bus Powered • 16-Bit Delta-Sigma ADC and DAC • Sampling Rate: – DAC: 32, 44.1, 48 kHz – ADC: 8, 11.025, 16, 22.05, 32, 44.1, 48 kHz • On-Chip Clock Generator With Single 12-MHz Clock Source • Single Power Supply: 5 V Typical (VBUS) • Stereo ADC – Analog Performance at VBUS = 5 V – THD+N = 0.01% – SNR = 89 dB – Dynamic Range = 89 dB – Decimation Digital Filter – Pass-Band Ripple = ±0.05 dB – Stop-Band Attenuation = 65 dB – Single-Ended Voltage Input – Antialiasing Filter Included – Digital LCF Included • Stereo DAC – Analog Performance at VBUS = 5 V – THD+N = 0.005% – SNR = 96 dB – Dynamic Range = 93 dB – Oversampling Digital Filter 234 (1) • • – Pass-Band Ripple = ±0.1 dB – Stop-Band Attenuation = –43 dB – Single-Ended Voltage Output – Analog LPF Included Multifunctions: – Human Interface Device (HID) Volume ± Control and Mute Control – Suspend Flag Package: 28-Pin SSOP APPLICATIONS • • • • USB Audio Speaker USB Headset USB Monitor USB Audio Interface Box DESCRIPTION The PCM2900/2902 is Texas Instruments' single-chip USB stereo audio codec with USB-compliant full-speed protocol controller and S/PDIF (only PCM2902). The USB protocol controller works with no software code, but the USB descriptors can be modified in some areas (e.g., vendor ID/product ID). The PCM2900/2902 employs SpAct™ architecture, TI's unique system that recovers the audio clock from USB packet data. On-chip analog PLLs with SpAct architecture enable playback and record with low clock jitter and with independent playback and record sampling rates. The descriptor can be modified by changing a mask. 1 2 3 4 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. SpAct is a trademark of Texas Instruments. System Two, Audio Precision are trademarks of Audio Precision, Inc. All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2007–2008, Texas Instruments Incorporated PCM2900 PCM2902 www.ti.com SLES035E – MARCH 2007 – REVISED MARCH 2008 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. PACKAGING ORDERING INFORMATION PCM2900 PRODUCT PACKAGE-LEAD PACKAGE DESIGNATOR SPECIFIED TEMPERATURE RANGE PCM2900E SSOP-28 28DB –25°C to 85°C (1) PACKAGE MARKING PCM2900E ORDERING NUMBER (1) TRANSPORT MEDIA PCM2900E Rails PCM2900E/2K Tape and reel Models with a slash (/) are available only in tape and reel in the quantities indicated (e.g., /2K indicates 2000 devices per reel). Ordering 2000 pieces of PCM2900E/2K gets a single 2000-piece tape and reel. PCM2902 PRODUCT PACKAGE-LEAD PACKAGE DESIGNATOR SPECIFIED TEMPERATURE RANGE PACKAGE MARKING PCM2902E SSOP-28 28DB –25°C to 85°C PCM2902E (1) ORDERING NUMBER (1) TRANSPORT MEDIA PCM2902E Rails PCM2902E/2K Tape and reel Models with a slash (/) are available only in tape and reel in the quantities indicated (e.g., /2K indicates 2000 devices per reel). Ordering 2000 pieces of PCM2902E/2K gets a single 2000-piece tape and reel. ABSOLUTE MAXIMUM RATINGS over operating free-air temperature range (unless otherwise noted) (1) VBUS Supply voltage PCM2900/PCM2902 UNIT –0.3 to 6.5 V Ground voltage differences, AGNDC, AGNDP, AGNDX, DGND, DGNDU ±0.1 V SEL0, SEL1, TEST0 (DIN) (2) –0.3 to 6.5 V D+, D–, HID0, HID1, HID2, XTI, XTO, TEST1 (DOUT) (2), SSPND –0.3 to (VDDI + 0.3) < 4 V VINL, VINR, VCOM, VOUTR, VOUTL –0.3 to (VCCCI + 0.3) < 4 V VCCCI, VCCP1I, VCCP2I, VCCXI, VDDI –0.3 to 4 V ±10 mA Digital input voltage Analog input voltage Input current (any pins except supplies) Ambient temperature under bias –40 to 125 °C Tstg Storage temperature –55 to 150 °C TJ Junction temperature 150 °C Lead temperature (soldering) 260 °C, 5 s Package temperature (IR reflow, peak) 250 °C (1) (2) 2 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. ( ): PCM2902 Submit Documentation Feedback Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 PCM2900 PCM2902 www.ti.com SLES035E – MARCH 2007 – REVISED MARCH 2008 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 TEST CONDITIONS PCM2900E, PCM2902E MIN TYP MAX UNIT DIGITAL INPUT/OUTPUT Host interface Apply USB Revision 1.1, full speed Audio data format USB isochronous data format INPUT LOGIC D+, D– VIH High-level input voltage XTI, HID0, HID1, and HID2 SEL0, SEL1 DIN, PCM2902 VIL IIH Low-level input voltage High-level input voltage 2 3.3 2.52 3.3 2 5.25 2.52 5.25 D+, D– 0.8 XTI, HID0, HID1, and HID2 0.9 SEL0, SEL1 0.8 DIN, PCM2902 0.9 D+, D–, XTI, SEL0, SEL1 HID0, HID1, and HID2 IIL 50 80 65 100 D+, D–, XTI, SEL0, SEL1 HID0, HID1, and HID2 VDC ±10 VIN = 3.3 V DIN, PCM2902 Low-level input voltage VDC µA ±10 VIN = 0 V ±10 DIN, PCM2902 µA ±10 OUTPUT LOGIC D+, D– VOH High-level output voltage 2.8 DOUT, PCM2902 IOH = –4 mA 2.8 SSPND IOH = –2 mA 2.8 VDC D+, D– VOL Low-level output voltage 0.3 DOUT, PCM2902 IOL = 4 mA 0.5 SSPND IOL = 2 mA 0.5 VDC CLOCK FREQUENCY Input clock frequency, XTI 11.994 12 12.008 MHz ADC CHARACTERISTICS Resolution Audio data channel Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 8, 16 bits 1, 2 channel Submit Documentation Feedback 3 PCM2900 PCM2902 www.ti.com SLES035E – MARCH 2007 – REVISED MARCH 2008 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 PCM2900E, PCM2902E TEST CONDITIONS MIN TYP MAX UNIT CLOCK FREQUENCY fS 8, 11.025, 16, 22.05, 32, 44.1, 48 Sampling frequency kHz DC ACCURACY Gain mismatch, channel-to-channel ±1 ±5 % of FSR Gain error ±2 ±10 % of FSR Bipolar zero error ±0 % of FSR DYNAMIC PERFORMANCE (1) VCCCI = 3.67 V, VIN = –0.5 dB (2) THD+N Total harmonic distortion plus noise 0.01% VIN = –0.5 dB (3) VIN = –60 dB SNR 0.02% 0.1% 5% Dynamic range A-weighted 81 89 dB Signal-to-noise ratio A-weighted 81 89 dB 80 85 dB Input voltage 0.6 VCCCI Vp-p Center voltage 0.5 VCCCI Channel separation ANALOG INPUT Input impedance Antialiasing filter frequency response –3 dB fIN = 20 kHz V 30 kΩ 150 kHz –0.08 dB DIGITAL FILTER PERFORMANCE Pass band 0.454 fS Stop band 0.583 fS Hz Pass-band ripple ±0.05 Stop-band attenuation td 65 Delay time LCF frequency response dB dB 17.4/fS –3 dB Hz 0.078 fS s MHz DAC CHARACTERISTICS Resolution Audio data channel 8, 16 bits 1, 2 channel CLOCK FREQUENCY fS (1) (2) (3) 4 Sampling frequency 32, 44.1, 48 kHz fIN = 1 kHz, using a System Two™ audio measurement system by Audio Precision™ in the RMS mode with 20-kHz LPF, 400-Hz HPF in calculation. Using external voltage regulator for VCCCI (as shown in Figure 36 and Figure 37, using with REG103xA-A) Using internal voltage regulator for VCCCI (as shown in Figure 38 and Figure 39) Submit Documentation Feedback Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 PCM2900 PCM2902 www.ti.com SLES035E – MARCH 2007 – REVISED MARCH 2008 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 TEST CONDITIONS PCM2900E, PCM2902E MIN UNIT TYP MAX Gain mismatch channel-to-channel ±1 ±5 % of FSR Gain error ±2 ±10 % of FSR Bipolar zero error ±2 DC ACCURACY % of FSR DYNAMIC PERFORMANCE (1) THD+N SNR VOUT = 0 dB Total harmonic distortion plus noise 0.005% VOUT = –60 dB 0.016% 3% Dynamic range EIAJ, A-weighted 87 93 dB Signal-to-noise ratio EIAJ, A-weighted 90 96 dB 86 92 dB 0.6 VCCCI Vp-p Channel separation ANALOG OUTPUT VO Output voltage Center voltage 0.5 VCCCI Load impedance AC coupling –3 dB LPF frequency response V 10 f = 20 kHz kΩ 250 kHz –0.03 dB Digital filter performance Pass band 0.445 fS Stop band 0.555 fS Hz Pass-band ripple ±0.1 Stop-band attenuation td –43 Delay time Hz dB dB 14.3 fS s POWER SUPPLY REQUIREMENTS VBUS Voltage range 4.35 ADC, DAC operation Supply current PD Suspend mode Power dissipation Internal power supply voltage (2) 5 5.25 VDC 56 67 mA 280 Suspend mode (2) 1.05 VCCCI, VCCP1I, VCCP2I, VCCXI, and VDDI µA 210 ADC, DAC operation 3.25 3.35 352 mW 3.5 VDC 85 °C TEMPERATURE RANGE Operation temperature θJA (1) (2) –25 Thermal resistance 100 °C/W fOUT = 1 kHz, using a System Two audio measurement system by Audio Precision in the RMS mode with 20-kHz LPF, 400-Hz HPF. Under USB suspend state Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 Submit Documentation Feedback 5 PCM2900 PCM2902 www.ti.com SLES035E – MARCH 2007 – REVISED MARCH 2008 PIN ASSIGNMENTS PCM2900 (Top View) D+ D– VBUS DGNDU HID0 HID1 HID2 SEL0 SEL1 VCCCI AGNDC VINL VINR VCOM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 PCM2902 (Top View) 28 27 26 25 24 23 22 21 20 19 18 17 16 15 SSPND VDDI DGND TEST1 TEST0 VCCXI D+ D– 1 2 3 4 5 6 7 8 9 10 11 12 13 14 VBUS AGNDX XTI XTO VCCP2I DGNDU HID0 HID1 HID2 SEL0 SEL1 VCCCI AGNDP VCCP1I VOUTL VOUTR AGNDC VINL VINR VCOM 28 27 26 25 24 23 22 21 20 19 18 17 16 15 SSPND VDDI DGND DOUT DIN VCCXI AGNDX XTI XTO VCCP2I AGNDP VCCP1I VOUTL VOUTR P0007-06 6 Submit Documentation Feedback Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 PCM2900 PCM2902 www.ti.com SLES035E – MARCH 2007 – REVISED MARCH 2008 PCM2900 TERMINAL FUNCTIONS TERMINAL NAME NO. I/O DESCRIPTION AGNDC 11 – Analog ground for codec AGNDP 18 – Analog ground for PLL AGNDX 22 – Analog ground for oscillator D– 2 I/O USB differential input/output minus (1) D+ 1 I/O USB differential input/output plus (1) DGND 26 – Digital ground DGNDU 4 – Digital ground for USB transceiver HID0 5 I HID key state input (mute), active-high (2) HID1 6 I HID key state input (volume up), active-high (2) HID2 7 I HID key state input (volume down), active-high (2) SEL0 8 I Must be set to high (3) SEL1 9 I Must be set to high (3) SSPND 28 O Suspend flag, active-low (Low: suspend, High: operational) TEST0 24 I Test pin, must be connected to GND TEST1 25 O Test pin, must be left open VBUS 3 – Connect to USB power (VBUS) VCCCI 10 – Internal analog power supply for codec (4) VCCP1I 17 – Internal analog power supply for PLL (4) VCCP2I 19 – Internal analog power supply for PLL (4) VCCXI 23 – Internal analog power supply for oscillator (4) VCOM 14 – Common for ADC/DAC (VCCCI/2) (4) VDDI 27 – Internal digital power supply (4) VINL 12 I ADC analog input for L-channel VINR 13 I ADC analog input for R-channel VOUTL 16 O DAC analog output for L-channel VOUTR 15 O DAC analog output for R-channel XTI 21 I Crystal oscillator input XTO 20 O Crystal oscillator output (1) (2) (3) (4) (5) (5) LV-TTL level 3.3-V CMOS-level input with internal pulldown. This pin informs the PC of serviceable control signals such as mute, volume up, or volume down, which have no connection with the internal DAC or ADC directly. See the Interface #3 and End-Points sections. TTL Schmitt trigger, 5-V tolerant Connect a decoupling capacitor to GND. 3.3-V CMOS-level input Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 Submit Documentation Feedback 7 PCM2900 PCM2902 www.ti.com SLES035E – MARCH 2007 – REVISED MARCH 2008 PCM2902 TERMINAL FUNCTIONS TERMINAL NAME NO. I/O DESCRIPTION AGNDC 11 – Analog ground for codec AGNDP 18 – Analog ground for PLL AGNDX 22 – Analog ground for oscillator D– 2 I/O USB differential input/output minus (1) D+ 1 I/O USB differential input/output plus (1) DGND 26 – Digital ground DGNDU 4 – Digital ground for USB transceiver DIN 24 I S/PDIF input (2) DOUT 25 O S/PDIF output HID0 5 I HID key state input (mute), active high (3) HID1 6 I HID key state input (volume up), active high (3) HID2 7 I HID key state input (volume down), active high (3) SEL0 8 I Must be set to high (4) SEL1 9 I Must be set to high (4) SSPND 28 O Suspend flag, active-low (Low: suspend, High: operational) VBUS 3 – Connect to USB power (VBUS) VCCCI 10 – Internal analog power supply for codec (5) VCCP1I 17 – Internal analog power supply for PLL (5) VCCP2I 19 – Internal analog power supply for PLL (5) VCCXI 23 – Internal analog power supply for oscillator (5) VCOM 14 – Common for ADC/DAC (VCCCI/2) (5) VDDI 27 – Internal digital power supply VINL 12 I ADC analog input for L-channel VINR 13 I ADC analog input for R-channel VOUTL 16 O DAC analog output for L-channel VOUTR 15 O DAC analog output for R-channel XTI 21 I Crystal oscillator input (6) XTO 20 O Crystal oscillator output (1) (2) (3) (4) (5) (6) 8 LV-TTL level 3.3-V CMOS-level input with internal pulldown, 5-V tolerant 3.3-V CMOS-level input with internal pulldown. This pin informs the PC of serviceable control signals such as mute, volume up, or volume down, which have no connection with the internal DAC or ADC directly. See the Interface #3 and End-Points sections. TTL Schmitt trigger, 5-V tolerant Connect a decoupling capacitor to GND. 3.3-V CMOS-level input Submit Documentation Feedback Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 PCM2900 PCM2902 www.ti.com SLES035E – MARCH 2007 – REVISED MARCH 2008 PCM2900 FUNCTIONAL BLOCK DIAGRAM VCCCI VCCP1I VCCP2I VCCXI VDDI AGNDC AGNDP AGNDX DGND DGNDU 5-V to 3.3-V Voltage Regulator Power Manager TEST0 SSPND TEST1 VBUS VINR ISO-In End-Point Analog PLL VCOM Selector Analog PLL VOUTL FIFO DAC VOUTR XCVR FIFO ADC USB SIE VINL D+ D– Control End-Point SEL0 SEL1 ISO-Out End-Point HID0 HID1 HID2 HID End-Point USB Protocol Controller PLL (´8) XTI 12 MHz 96 MHz Tracker (SpAct) XTO B0238-01 Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 Submit Documentation Feedback 9 PCM2900 PCM2902 www.ti.com SLES035E – MARCH 2007 – REVISED MARCH 2008 PCM2902 FUNCTIONAL BLOCK DIAGRAM VCCCI VCCP1I VCCP2I VCCXI VDDI AGNDC AGNDP AGNDX DGND DGNDU 5-V to 3.3-V Voltage Regulator Lock DIN Power Manager SSPND S/PDIF Decoder VBUS VINR ISO-In End-Point Analog PLL VCOM Selector Analog PLL VOUTL FIFO DAC VOUTR DOUT D+ D– Control End-Point SEL0 SEL1 ISO-Out End-Point HID End-Point S/PDIF Encoder XCVR FIFO ADC USB SIE VINL HID0 HID1 HID2 USB Protocol Controller PLL (´8) XTI 12 MHz 96 MHz Tracker (SpAct) XTO B0239-01 10 Submit Documentation Feedback Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 PCM2900 PCM2902 www.ti.com SLES035E – MARCH 2007 – REVISED MARCH 2008 PCM2900/2902 DIAGRAM OF ANALOG FRONT-END (RIGHT CHANNEL) 4.7 mF + VINR 30 kW – 13 – + (+) + (–) Delta-Sigma Modulator VCOM 14 + (VCCCI/2) 10 mF Reference S0011-06 Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 Submit Documentation Feedback 11 PCM2900 PCM2902 www.ti.com SLES035E – MARCH 2007 – REVISED MARCH 2008 TYPICAL CHARACTERISTICS All specifications at TA = 25°C, VBUS = 5 V, fS = 44.1 kHz, fin = 1 kHz, 16-bit data, using REG 103xA-A, unless otherwise noted ADC TOTAL HARMONIC DISTORTION + NOISE at –0.5 dB vs FREE-AIR TEMPERATURE DYNAMIC RANGE and SNR vs FREE-AIR TEMPERATURE 95 0.009 Dynamic Range and SNR − dB THD+N − Total Harmonic Distortion + Noise − % 0.010 0.008 0.007 0.006 0.005 SNR 85 80 0.004 0.003 −50 −25 0 25 50 75 TA − Free-Air Temperature − °C 75 −50 100 −25 25 50 G001 Figure 1. Figure 2. TOTAL HARMONIC DISTORTION + NOISE at –0.5 dB vs SUPPLY VOLTAGE DYNAMIC RANGE and SNR vs SUPPLY VOLTAGE 75 100 G002 95 Dynamic Range and SNR − dB 0.009 0.008 0.007 0.006 0.005 Dynamic Range 90 SNR 85 80 0.004 0.003 4.0 4.5 5.0 5.5 VBUS − Supply Voltage − V 75 4.0 4.5 Submit Documentation Feedback 5.0 VBUS − Supply Voltage − V G003 Figure 3. 12 0 TA − Free-Air Temperature − °C 0.010 THD+N − Total Harmonic Distortion + Noise − % Dynamic Range 90 5.5 G004 Figure 4. Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 PCM2900 PCM2902 www.ti.com SLES035E – MARCH 2007 – REVISED MARCH 2008 TYPICAL CHARACTERISTICS (continued) All specifications at TA = 25°C, VBUS = 5 V, fS = 44.1 kHz, fin = 1 kHz, 16-bit data, using REG 103xA-A, unless otherwise noted TOTAL HARMONIC DISTORTION + NOISE at –0.5 dB vs SAMPLING FREQUENCY DYNAMIC RANGE AND SNR vs SAMPLING FREQUENCY 95 0.09 0.009 Dynamic Range and SNR − dB THD+N − Total Harmonic Distortion + Noise − % 0.10 0.010 0.08 0.008 0.07 0.007 0.06 0.006 0.05 0.005 Dynamic Range 90 SNR 85 80 0.04 0.004 75 0.03 0.003 30 35 40 45 30 50 35 40 45 50 fS − Sampling Frequency − kHz fS − Sampling Frequency − kHz G006 G005 Figure 5. Figure 6. TOTAL HARMONIC DISTORTION + NOISE at 0 dB vs FREE-AIR TEMPERATURE DYNAMIC RANGE AND SNR vs FREE-AIR TEMPERATURE DAC 98 97 0.007 Dynamic Range and SNR − dB THD+N − Total Harmonic Distortion + Noise − % 0.008 0.006 0.005 0.004 SNR 96 95 Dynamic Range 94 93 92 91 0.003 −50 −25 0 25 50 75 TA − Free-Air Temperature − °C 100 90 −50 −25 0 25 50 75 TA − Free-Air Temperature − °C G007 Figure 7. 100 G008 Figure 8. Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 Submit Documentation Feedback 13 PCM2900 PCM2902 www.ti.com SLES035E – MARCH 2007 – REVISED MARCH 2008 TYPICAL CHARACTERISTICS (continued) All specifications at TA = 25°C, VBUS = 5 V, fS = 44.1 kHz, fin = 1 kHz, 16-bit data, using REG 103xA-A, unless otherwise noted TOTAL HARMONIC DISTORTION + NOISE at 0 dB vs SUPPLY VOLTAGE DYNAMIC RANGE AND SNR vs SUPPLY VOLTAGE 98 97 0.007 Dynamic Range and SNR − dB THD+N − Total Harmonic Distortion + Noise − % 0.008 0.006 0.005 0.004 95 Dynamic Range 94 93 92 91 0.003 4.0 4.5 5.0 90 4.0 5.5 VBUS − Supply Voltage − V 4.5 5.5 G009 Figure 9. Figure 10. TOTAL HARMONIC DISTORTION + NOISE at 0 dB vs SAMPLING FREQUENCY DYNAMIC RANGE AND SNR vs SAMPLING FREQUENCY G010 98 97 SNR Dynamic Range and SNR − dB 0.007 0.006 0.005 0.004 96 95 94 Dynamic Range 93 92 91 90 0.003 30 35 40 45 fS − Sampling Frequency − kHz 30 50 35 Submit Documentation Feedback 40 45 fS − Sampling Frequency − kHz G011 Figure 11. 14 5.0 VBUS − Supply Voltage − V 0.008 THD+N − Total Harmonic Distortion + Noise − % SNR 96 50 G012 Figure 12. Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 PCM2900 PCM2902 www.ti.com SLES035E – MARCH 2007 – REVISED MARCH 2008 TYPICAL CHARACTERISTICS (continued) All specifications at TA = 25°C, VBUS = 5 V, fS = 44.1 kHz, fin = 1 kHz, 16-bit data, using REG 103xA-A, unless otherwise noted SUPPLY CURRENT 60 0.28 Operational 50 0.26 Suspend 40 0.24 0.22 30 20 4.00 4.25 4.50 4.75 5.00 5.25 ICC − Suspend Supply Current − mA ICC − Operational Supply Current − mA OPERATIONAL AND SUSPEND SUPPLY CURRENT vs SUPPLY VOLTAGE 70 0.30 0.20 5.50 VBUS − Supply Voltage − V G013 Figure 13. OPERATIONAL SUPPLY CURRENT vs SAMPLING FREQUENCY SUSPEND SUPPLY CURRENT vs FREE-AIR TEMPERATURE 0.40 ICC − Suspend Supply Current − mA ICC − Operational Supply Current − mA 70 60 50 ADC and DAC 40 30 20 30 35 40 45 fS − Sampling Frequency − kHz 50 0.35 0.30 USB Spec Limit for Device (0.3 mA) 0.25 0.20 0.15 0.10 −40 −20 G014 Figure 14. 0 20 40 60 80 TA − Free-Air Temperature − °C 100 G015 Figure 15. Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 Submit Documentation Feedback 15 PCM2900 PCM2902 www.ti.com SLES035E – MARCH 2007 – REVISED MARCH 2008 TYPICAL CHARACTERISTICS (continued) All specifications at TA = 25°C, VBUS = 5 V, fS = 44.1 kHz, fin = 1 kHz, 16-bit data, unless otherwise noted ADC DIGITAL DECIMATION FILTER FREQUENCY RESPONSE OVERALL CHARACTERISTICS STOP-BAND ATTENUATION 0 0 −10 −20 −20 −40 Amplitude − dB Amplitude − dB −30 −60 −80 −100 −40 −50 −60 −70 −120 −80 −140 −90 −100 0.0 −160 0 8 16 24 Frequency [y fS] 32 0.2 G016 Figure 16. 0.8 1.0 G017 TRANSITION-BAND RESPONSE 0 0.0 −4 Amplitude − dB Amplitude − dB PASS-BAND RIPPLE −0.2 −0.4 −8 −12 −16 −0.6 0.1 0.2 0.3 Frequency [y fS] 0.4 0.5 −20 0.46 0.48 Submit Documentation Feedback 0.50 Frequency [y fS] G018 Figure 18. 16 0.6 Figure 17. 0.2 −0.8 0.0 0.4 Frequency [y fS] 0.52 0.54 G019 Figure 19. Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 PCM2900 PCM2902 www.ti.com SLES035E – MARCH 2007 – REVISED MARCH 2008 TYPICAL CHARACTERISTICS (continued) All specifications at TA = 25°C, VBUS = 5 V, fS = 44.1 kHz, fin = 1 kHz, 16-bit data, unless otherwise noted ADC DIGITAL HIGH-PASS FILTER FREQUENCY RESPONSE STOP-BAND CHARACTERISTICS PASS-BAND CHARACTERISTICS 0.0 0 −10 −0.2 −20 Amplitude − dB Amplitude − dB −30 −40 −50 −60 −0.4 −0.6 −70 −80 −0.8 −90 −100 0.0 −1.0 0.1 0.2 0.3 Frequency [y fS/1000] 0.4 0 1 2 3 Frequency [y fS/1000] G020 Figure 20. 4 G021 Figure 21. ADC ANALOG ANTIALIASING FILTER FREQUENCY RESPONSE PASS-BAND CHARACTERISTICS 0.0 −10 −0.2 Amplitude − dB Amplitude − dB STOP-BAND CHARACTERISTICS 0 −20 −30 −0.4 −0.6 −0.8 −40 −50 1 10 100 1k 10k −1.0 0.01 0.1 1 10 100 f − Frequency − kHz f − Frequency − kHz G023 G022 Figure 22. Figure 23. Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 Submit Documentation Feedback 17 PCM2900 PCM2902 www.ti.com SLES035E – MARCH 2007 – REVISED MARCH 2008 TYPICAL CHARACTERISTICS (continued) All specifications at TA = 25°C, VBUS = 5 V, fS = 44.1 kHz, fin = 1 kHz, 16-bit data, unless otherwise noted DAC DIGITAL INTERPOLATION FILTER FREQUENCY RESPONSE STOP-BAND ATTENUATION PASS-BAND RIPPLE 0 0.2 −10 −20 0.0 Amplitude − dB Amplitude − dB −30 −40 −50 −60 −0.2 −0.4 −70 −80 −0.6 −90 −100 0 1 2 3 −0.8 0.0 4 Frequency [y fS] 0.1 0.2 0.3 Frequency [y fS] G024 Figure 24. 0.4 0.5 G025 Figure 25. TRANSITION-BAND RESPONSE 0 −2 −4 Amplitude − dB −6 −8 −10 −12 −14 −16 −18 −20 0.46 0.47 0.48 0.49 0.50 0.51 0.52 0.53 0.54 Frequency [y fS] G026 Figure 26. 18 Submit Documentation Feedback Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 PCM2900 PCM2902 www.ti.com SLES035E – MARCH 2007 – REVISED MARCH 2008 TYPICAL CHARACTERISTICS (continued) All specifications at TA = 25°C, VBUS = 5 V, fS = 44.1 kHz, fin = 1 kHz, 16-bit data, unless otherwise noted DAC ANALOG FIR FILTER FREQUENCY RESPONSE PASS-BAND CHARACTERISTICS 0.2 −10 0.0 Amplitude − dB Amplitude − dB STOP-BAND CHARACTERISTICS 0 −20 −30 −0.2 −0.4 −0.6 −40 −0.8 0.0 −50 0 8 16 24 Frequency [y fS] 32 0.1 0.2 0.3 0.4 Frequency [y fS] G027 Figure 27. 0.5 G028 Figure 28. DAC ANALOG LOW-PASS FILTER FREQUENCY RESPONSE PASS-BAND CHARACTERISTICS 0.0 −10 −0.2 Amplitude − dB Amplitude − dB STOP-BAND CHARACTERISTICS 0 −20 −30 −0.4 −0.6 −0.8 −40 −50 1 10 100 1k 10k −1.0 0.01 0.1 1 10 100 f − Frequency − kHz f − Frequency − kHz G030 G029 Figure 29. Figure 30. Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 Submit Documentation Feedback 19 PCM2900 PCM2902 www.ti.com SLES035E – MARCH 2007 – REVISED MARCH 2008 USB INTERFACE Control data and audio data are transferred to the PCM2900/2902 via D+ (pin 1) and D– (pin 2). All data to/from the PCM2900/2902 is transferred at full speed. The device descriptor contains the information described in Table 1. The device descriptor can be modified on request; contact a Texas Instruments representative for details. Table 1. Device Description USB revision 1.1 compliant Device class 0x00 (device-defined interface level) Device subclass 0x00 (not specified) Device protocol 0x00 (not specified) Max packet size for end-point 0 8 bytes Vendor ID 0x08BB (default value, can be modified) Product ID 0x2900 / 0x2902 (default value, can be modified) Device release number 1.0 (0x0100) Number of configurations 1 Vendor strings String #1 (see Table 3) Product strings String #2 (see Table 3) Serial number Not supported The configuration descriptor contains the information described in Table 2. The configuration descriptor can be modified on request; contact a Texas Instruments representative for details. Table 2. Configuration Descriptor Interface Four interfaces Power attribute 0x80 (Bus powered, no remote wakeup) Max power 0x32 (100 mA. Default value, can be modified) The string descriptor contains the information described in Table 3. The string descriptor can be modified on request; contact a Texas Instruments representative for details. Table 3. String Descriptor #0 0x0409 #1 Burr-Brown from TI (default value, can be modified) #2 USB audio codec (default value, can be modified) A DEVICE CONFIGURATION Figure 31 illustrates the USB audio function topology. The PCM2900/2902 has four interfaces. Each interface is constructed by alternative settings. 20 Submit Documentation Feedback Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 PCM2900 PCM2902 www.ti.com SLES035E – MARCH 2007 – REVISED MARCH 2008 End-Point #0 Default End-Point FU Analog Out End-Point #2 (IF #1) IT TID1 OT TID2 Audio Streaming Interface UID3 Analog In End-Point #4 (IF #2) IT TID4 OT TID5 Audio Streaming Interface Standard Audio Control Interface (IF #0) End-Point #5 (IF #3) HID Interface PCM2900/2902 M0024-03 Figure 31. USB Audio Function Topology Interface #0 Interface #0 is defined as the control interface. Alternative setting #0 is the only possible setting for interface #0. Alternative setting #0 describes the standard audio control interface. A terminal constructs the audio control interface. The PCM2900/2902 has five terminals as follows: • Input terminal (IT #1) for isochronous-out stream • Output terminal (OT #2) for audio analog output • Feature unit (FU #3) for DAC digital attenuator • Input terminal (IT #4) for audio analog input • Output terminal (OT #5) for isochronous-in stream Input terminal #1 is defined as USB stream (terminal type 0x0101). Input terminal #1 can accept 2-channel audio streams constructed by left and right channels. Output terminal #2 is defined as a speaker (terminal type 0x0301). Input terminal #4 is defined as a microphone (terminal type 0x0201). Output terminal #5 is defined as a USB stream (terminal type 0x0101). Output terminal #5 can generate 2-channel audio streams constructed by left and right channels. Feature unit #3 supports the following sound control features. • Volume control • Mute control The built-in digital volume controller can be manipulated by an audio class specific request from 0 dB to -64 dB Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 Submit Documentation Feedback 21 PCM2900 PCM2902 www.ti.com SLES035E – MARCH 2007 – REVISED MARCH 2008 in 1-dB steps. Changes are made by incrementing or decrementing by one step (1 dB) for every 1/fS time interval until the volume level has reached the requested value. Each channel can be set for different values. The master volume control is not supported. A request to the master volume is stalled and ignored. The built-in digital mute controller can be manipulated by audio class specific request. A master mute control request is acceptable. A request to an individual channel is stalled and ignored. Interface #1 Interface #1 is the audio streaming data-out interface. Interface #1 has the following seven alternative settings. Alternative setting #0 is the zero bandwidth setting. All other alternative settings are operational settings. ALTERNATIVE SETTING DATA FORMAT 00 TRANSFER MODE SAMPLING RATE (kHz) Zero Bandwidth 01 16 bit Stereo 2s complement (PCM) Adaptive 32, 44.1, 48 02 16 bit Mono 2s complement (PCM) Adaptive 32, 44.1, 48 03 8 bit Stereo 2s complement (PCM) Adaptive 32, 44.1, 48 04 8 bit Mono 2s complement (PCM) Adaptive 32, 44.1, 48 05 8 bit Stereo Offset binary (PCM8) Adaptive 32, 44.1, 48 06 8 bit Mono Offset binary (PCM8) Adaptive 32, 44.1, 48 Interface #2 Interface #2 is the audio streaming data-in the interface. Interface #2 has the following 19 alternative settings. Alternative setting #0 is the zero bandwidth setting. All other alternative settings are operational settings. ALTERNATIVE SETTING DATA FORMAT 00 TRANSFER MODE SAMPLING RATE (kHz) 48 Zero Bandwidth 01 16 bit Stereo 2s complement (PCM) Asynchronous 02 16 bit Mono 2s complement (PCM) Asynchronous 48 03 16 bit Stereo 2s complement (PCM) Asynchronous 44.1 04 16 bit Mono 2s complement (PCM) Asynchronous 44.1 05 16 bit Stereo 2s complement (PCM) Asynchronous 32 06 16 bit Mono 2s complement (PCM) Asynchronous 32 07 16 bit Stereo 2s complement (PCM) Asynchronous 22.05 08 16 bit Mono 2s complement (PCM) Asynchronous 22.05 09 16 bit Stereo 2s complement (PCM) Asynchronous 16 0A 16 bit Mono 2s complement (PCM) Asynchronous 16 0B 8 bit Stereo 2s complement (PCM) Asynchronous 16 0C 8 bit Mono 2s complement (PCM) Asynchronous 16 0D 8 bit Stereo 2s complement (PCM) Asynchronous 8 0E 8 bit Mono 2s complement (PCM) Asynchronous 8 0F 16 bit Stereo 2s complement (PCM) Synchronous 11.025 10 16 bit Mono 2s complement (PCM) Synchronous 11.025 11 8 bit Stereo 2s complement (PCM) Synchronous 11.025 12 8 bit Mono 2s complement (PCM) Synchronous 11.025 Interface #3 Interface #3 is the interrupt data-in interface. Alternative setting #0 is the only possible setting for interface #3. Interface #3 constructs the HID consumer control device and reports the following three key statuses. • Mute (0xE209) • Volume up (0xE909) • Volume down (0xEA09) 22 Submit Documentation Feedback Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 PCM2900 PCM2902 www.ti.com SLES035E – MARCH 2007 – REVISED MARCH 2008 End-Points The PCM2900/2902 has the following four end-points. • Control end-point (EP #0) • Isochronous-out audio data stream end-point (EP #2) • Isochronous-in audio data stream end-point (EP #4) • HID end-point (EP #5) The control end-point is a default end-point. The control end-point is used to control all functions of the PCM2900/2902 by the standard USB request and USB audio class specific request from the host. The isochronous-out audio data stream end-point is an audio sink end-point, which receives the PCM audio data. The isochronous-out audio data stream end-point accepts the adaptive transfer mode. The isochronous-in audio data stream end-point is an audio source end-point, which transmits the PCM audio data. The isochronous-in audio data stream end-point uses asynchronous transfer mode. The HID end-point is an interrupt-in end-point. HID end-point reports HID0, HID1, and HID2 pin status every 32 ms. The human interface device (HID) pins are defined as consumer control devices. The HID function is designed as an independent end-point from both isochronous-in and -out end-points. This means that the result of affection for the HID operation depends on the host software. Typically, the HID function is affected for the primary audio-out device. Clock and Reset The PCM2900/2902 requires a 12-MHz (±500 ppm) clock for the USB and audio function, which can be generated by a built-in crystal oscillator with a 12-MHz crystal resonator. The 12-MHz crystal resonator must be connected to XTI (pin 21) and XTO (pin 20) with one high (1-MΩ) resistor and two small capacitors, the capacitance of which depends on the load capacitance of the crystal resonator. The external clock can be supplied from XTI (pin 21). If the external clock is supplied, XTO (pin 20) must be left open. Because of no clock-disabling signal, it is not recommended to use the external clock supply. SSPND (pin 28) is unable to use clock disabling. The PCM2900/2902 has an internal power-on reset circuit, which works automatically when VBUS (pin 3) exceeds 2.5 V typical (2.7 V–2.2 V), and about 700 µs is required until internal reset release. Digital Audio Interface (PCM2902) The PCM2902 employs both S/PDIF input and output. Isochronous-out data from the host is encoded to the S/PDIF output and the DAC analog output. Input data is selected as either S/PDIF or ADC analog input. When the device detects an S/PDIF input and successfully locks the received data, the isochronous-in transfer data source is automatically selected from S/PDIF itself; otherwise, the data source is selected to ADC analog input. Supported Input Data (PCM2902) The following data formats are accepted by the S/PDIF input and output. All other data formats are unable to use S/PDIF. • 48-kHz 16-bit stereo • 44.1-kHz 16-bit stereo • 32-kHz 16-bit stereo Mismatch between input data format and host command may cause unexpected results except in the following conditions. • Record monaural format from stereo data input at the same data rate • Record 8-bit format from 16-bit data input at the same data rate A combination between the above conditions is not accepted. For the playback, all possible data rate source is converted to 16-bit stereo format at the same source data rate. Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 Submit Documentation Feedback 23 PCM2900 PCM2902 www.ti.com SLES035E – MARCH 2007 – REVISED MARCH 2008 Channel Status Information (PCM2902) The channel status information is fixed as consumer application, PCM mode, copyright, and digital/digital converter. All other bits are fixed as 0s except for the sample frequency, which is set automatically according to the data received through the USB. Copyright Management (PCM2902) Isochronous-in data is affected by the serial copy management system (SCMS). Where receiving digital audio data that is indicated as original data in the control bit, input digital audio data transfers to the host. If the data is indicated as first generation or higher, transferred data is selected to analog input. Digital audio data output is always encoded as original with SCMS control. The implementation of this feature is an option for the customer. Note that it is the user's responsibility whether they implement this feature in their product or not. INTERFACE SEQUENCE Power On, Attach, and Playback Sequence The PCM2900/2902 is ready for setup when the reset sequence has finished and the USB bus is attached. After connection has been established by setup, the PCM2900/2902 is ready to accept USB audio data. While waiting, the audio data (idle state) and analog output are set to bipolar zero (BPZ). When receiving the audio data, the PCM2900/2902 stores the first audio packet, which contained 1-ms audio data, into the internal storage buffer. The PCM2900/2902 starts playing the audio data when detecting the following start of frame (SOF) packet. 5 V (Typ) VBUS (Pin 3) 2.5 V (Typ) 0V Bus Reset st 1 Audio Data Set Configuration 2 nd Audio Data Bus Idle D+/D– SOF SOF SOF SSPND BPZ VOUTL VOUTR 700 ms Device Setup 1 ms Internal Reset Ready for Setup Ready for Playback T0055-02 Figure 32. Initial Sequence 24 Submit Documentation Feedback Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 PCM2900 PCM2902 www.ti.com SLES035E – MARCH 2007 – REVISED MARCH 2008 Play, Stop, and Detach Sequence When the host finishes or aborts the playback, the PCM2900/2902 stops playing after the last audio data has played. Record Sequence The PCM2900/2902 starts the audio capture into the internal memory after receiving the SET_INTERFACE command. Suspend and Resume Sequence The PCM2900/2902 enters the suspend state after it sees a constant idle state on the USB bus, approximately 5 ms. While the PCM2900/2902 enters the suspend state, SSPND flag (pin 28) is asserted. The PCM2900/2902 wakes up immediately when detecting the non-idle state on the USB bus. VBUS (Pin 3) Audio Data Audio Data Last Audio Data D+/D– SOF SOF SOF SOF SOF VOUTL VOUTR Detach 1 ms T0056-02 Figure 33. Play, Stop, and Detach Audio Data SET_INTERFACE IN Token Audio Data IN Token Audio Data IN Token D+/D– SOF SOF SOF SOF SOF VINL VINR 1 ms T0259-01 Figure 34. Record Sequence Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 Submit Documentation Feedback 25 PCM2900 PCM2902 www.ti.com SLES035E – MARCH 2007 – REVISED MARCH 2008 Idle D+/D– SSPND Active 5 ms Suspend Active T0057-02 Figure 35. Suspend and Resume 26 Submit Documentation Feedback Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 PCM2900 PCM2902 www.ti.com SLES035E – MARCH 2007 – REVISED MARCH 2008 PCM2900 TYPICAL CIRCUIT CONNECTION 1 Figure 36 illustrates a typical circuit connection for a high-performance application. The circuit illustrated is for information only. The whole board design should be considered to meet the USB specification as a USB-compliant product. 1.5 kW ´ 3 1.5 kW PCM2900 22 W D+ 1 D+ SSPND 28 2 D– VDDI 27 3 VBUS DGND 26 4 DGNDU TEST1 25 5 HID0 TEST0 24 6 HID1 VCCXI 23 7 HID2 AGNDX 22 8 SEL0 XTI 21 9 SEL1 XTO 20 10 VCCCI VCCP2I 19 11 AGNDC AGNDP 18 12 VINL VCCP1I 17 13 VINR VOUTL 16 14 VCOM VOUTR 15 22 W D– C3 2.2 W VBUS 1 mF GND IC1 IN OUT GND ADJ EN 5 3 4 1 2 C13 3.6 V– 3.85 V + D1 C1 C9 C10 + 27 kW C2 + C5 1 MW C6 12 MHz 13 kW + C4 C7 MUTE/ Power Down C8 + C11 + C12 LPF, Amp LPF, Amp S0264-03 NOTE: C1, C2: 10 µF C3, C4, C7, C8, C13: 1 µF (These capacitors must be less than 2 µF.) C5, C6: 10 pF to 33 pF (depending on crystal resonator) C9, C10, C11, C12: The capacitance may vary depending on design. IC1: REG103xA-A (TI) or equivalent. Analog performance may vary depending on IC1. D1: Schottky barrier diode (VF ≤ 350 mV at 10 mA, IR ≤ 2 µA at 4 V) Figure 36. Bus-Powered Configuration for High-Performance Application Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 Submit Documentation Feedback 27 PCM2900 PCM2902 www.ti.com SLES035E – MARCH 2007 – REVISED MARCH 2008 PCM2902 TYPICAL CIRCUIT CONNECTION 1 Figure 37 illustrates a typical circuit connection for a high-performance application. The circuit illustrated is for information only. The whole board design should be considered to meet the USB specification as a USB-compliant product. 1.5 kW ´ 3 1.5 kW PCM2902 22 W D+ 1 D+ SSPND 28 2 D– VDDI 27 3 VBUS DGND 26 4 DGNDU DOUT 25 5 HID0 DIN 24 6 HID1 VCCXI 23 7 HID2 AGNDX 22 8 SEL0 XTI 21 9 SEL1 XTO 20 10 VCCCI VCCP2I 19 11 AGNDC AGNDP 18 12 VINL VCCP1I 17 13 VINR VOUTL 16 14 VCOM VOUTR 15 22 W D– C3 2.2 W VBUS 1 mF GND IC1 IN OUT GND ADJ EN 5 3 4 1 2 C13 D1 C1 C9 C10 3.6 V– 3.85 V + + 27 kW C2 + C5 1 MW C6 12 MHz 13 kW + C4 C7 MUTE/ Power Down C8 + C11 + C12 LPF, Amp LPF, Amp S0264-04 NOTE: C1, C2: 10 µF C3, C4, C7, C8, C13: 1 µF (These capacitors must be less than 2 µF.) C5, C6: 10 pF to 33 pF (depending on crystal resonator) C9, C10, C11, C12: The capacitance may vary depending on design. IC1: REG103xA-A (TI) or equivalent. Analog performance may vary depending on IC1. D1: Schottky barrier diode (VF ≤ 350 mV at 10 mA, IR ≤ 2 µA at 4 V) Figure 37. Bus-Powered Configuration for High-Performance Application 28 Submit Documentation Feedback Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 PCM2900 PCM2902 www.ti.com SLES035E – MARCH 2007 – REVISED MARCH 2008 PCM2900 TYPICAL CIRCUIT CONNECTION 2 Figure 38 illustrates a typical circuit connection for a simple application. The circuit illustrated is for information only. The whole board design should be considered to meet the USB specification as a USB-compliant product. 1.5 kW ´ 4 PCM2900 22 W D+ 1 D+ SSPND 28 2 D– VDDI 27 3 VBUS DGND 26 4 DGNDU TEST1 25 5 HID0 TEST0 24 6 HID1 VCCXI 23 7 HID2 AGNDX 22 8 SEL0 XTI 21 9 SEL1 XTO 20 10 VCCCI VCCP2I 19 11 AGNDC AGNDP 18 12 VINL VCCP1I 17 13 VINR VOUTL 16 14 VCOM VOUTR 15 22 W D– C3 2.2 W VBUS 1 mF GND C1 + C9 C10 + + C2 + C4 C5 1 MW C6 12 MHz C7 MUTE/ Power Down C8 + C11 + C12 LPF, Amp LPF, Amp S0265-03 NOTE: C1, C2: 10 µF C3, C4, C7, C8: 1 µF (These capacitors must be less than 2 µF.) C5, C6: 10 pF to 33 pF (depending on crystal resonator) C9, C10, C11, C12: The capacitance may vary depending on design. In this case, the analog performance of the A/D converter may be degraded. Figure 38. Bus-Powered Configuration Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 Submit Documentation Feedback 29 PCM2900 PCM2902 www.ti.com SLES035E – MARCH 2007 – REVISED MARCH 2008 PCM2902 TYPICAL CIRCUIT CONNECTION 2 Figure 39 illustrates a typical circuit connection for a simple application. The circuit illustrated is for information only. The whole board design should be considered to meet the USB specification as a USB-compliant product. 1.5 kW ´ 4 PCM2902 22 W D+ 1 D+ SSPND 28 2 D– VDDI 27 3 VBUS DGND 26 4 DGNDU DOUT 25 5 HID0 DIN 24 6 HID1 VCCXI 23 7 HID2 AGNDX 22 8 SEL0 XTI 21 9 SEL1 XTO 20 10 VCCCI VCCP2I 19 11 AGNDC AGNDP 18 12 VINL VCCP1I 17 13 VINR VOUTL 16 14 VCOM VOUTR 15 22 W D– C3 2.2 W VBUS 1 mF GND C1 + C9 C10 + + C2 + C4 C5 1 MW C6 12 MHz C7 MUTE/ Power Down C8 + C11 + C12 LPF, Amp LPF, Amp S0265-04 NOTE: C1, C2: 10 µF C3, C4, C7, C8: 1 µF (These capacitors must be less than 2 µF.) C5, C6: 10 pF to 33 pF (depending on crystal resonator) C9, C10, C11, C12: The capacitance may vary depending on design. In this case, the analog performance of the A/D converter may be degraded. Figure 39. Bus-Powered Configuration 30 Submit Documentation Feedback Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 PCM2900 PCM2902 www.ti.com SLES035E – MARCH 2007 – REVISED MARCH 2008 APPLICATION INFORMATION OPERATING ENVIRONMENT For current information on the PCM2900/2902 operating environment, see the Updated Operating Environments for PCM270X, PCM290X Applications application report, SLAA374. xxxxxx xxxxxx xxxxxx xxxxxx REVISION HISTORY Changes from Original (March 2002) to Revision A ....................................................................................................... Page • Changed the status from Product Preview to Production Provided the full data sheet......................................................... 1 Changes from Revision A (May 2002) to Revision B ...................................................................................................... Page • • • • Changed the description. ....................................................................................................................................................... 1 Changed Interface #2 to include lines 0F, 10, 11, and 12................................................................................................... 22 Added Channel Status Information (PCM2902). ................................................................................................................. 24 Deleted Note: The circuit illustrated above is for information only. The whole board design should be considered to meet the USB specification as a USB compliant product. From Figure 36, Figure 37, and Figure 38 ............................... 27 Changes from Revision B (June 2004) to Revision C .................................................................................................... Page • Changed Figure 36, Figure 37, and Figure 38 .................................................................................................................... 27 Changes from Revision C (March 2007) to Revision D .................................................................................................. Page • Deleted operating environment information from data sheet and added reference to application report ........................... 31 Changes from Revision D (November 2007) to Revision E ........................................................................................... Page • Changed the Packageing Ordering Information Table to correct the Specified Temperature Range From 25°C to –25°C for the PCM2900 and PCM2902. ............................................................................................................................... 2 Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 Submit Documentation Feedback 31 PACKAGE OPTION ADDENDUM www.ti.com 28-Feb-2008 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty PCM2900E ACTIVE SSOP DB 28 PCM2900E/2K ACTIVE SSOP DB PCM2900E/2KG4 ACTIVE SSOP PCM2900EG4 ACTIVE PCM2902E 47 Lead/Ball Finish MSL Peak Temp (3) Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM 28 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM DB 28 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SSOP DB 28 47 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM ACTIVE SSOP DB 28 47 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM PCM2902E/2K ACTIVE SSOP DB 28 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM PCM2902E/2KG4 ACTIVE SSOP DB 28 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM PCM2902EG4 ACTIVE SSOP DB 28 CU NIPDAU Level-1-260C-UNLIM 47 Green (RoHS & no Sb/Br) (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. Addendum-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 13-Jun-2008 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel Diameter Width (mm) W1 (mm) A0 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant PCM2900E/2K SSOP DB 28 2000 330.0 17.4 8.5 10.8 2.4 12.0 16.0 Q1 PCM2902E/2K SSOP DB 28 2000 330.0 17.4 8.5 10.8 2.4 12.0 16.0 Q1 Pack Materials-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 13-Jun-2008 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) PCM2900E/2K SSOP DB 28 2000 336.6 336.6 28.6 PCM2902E/2K SSOP DB 28 2000 336.6 336.6 28.6 Pack Materials-Page 2 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. 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