SBFS038A June   2012  – September 2015 PCM2903C

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
      1. 7.6.1  Typical Characteristics: ADC
      2. 7.6.2  Typical Characteristics: DAC
      3. 7.6.3  Typical Characteristics: ADC Output Spectrum
      4. 7.6.4  Typical Characteristics: DAC Output Spectrum
      5. 7.6.5  Typical Characteristics: Supply Current
      6. 7.6.6  Typical Characteristics: ADC Digital Decimation Filter Frequency Response
      7. 7.6.7  Typical Characteristics: ADC Digital High-Pass Filter Frequency Response
      8. 7.6.8  Typical Characteristics: ADC Analog Antialiasing Filter Frequency Response
      9. 7.6.9  Typical Characteristics: DAC Digital Interpolation Filter Frequency Response
      10. 7.6.10 Typical Characteristics: DAC Analog Fir Filter Frequency Response
      11. 7.6.11 Typical Characteristics: DAC Analog Low-Pass Filter Frequency Response
  8. 8 Parameter Measurement Information
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 End-Points
      2. 9.3.2 Clock and Reset
      3. 9.3.3 Digital Audio Interface
      4. 9.3.4 Supported Input/Output Data
      5. 9.3.5 Channel Status Information
      6. 9.3.6 Copyright Management
    4. 9.4 Device Functional Modes
    5. 9.5 Programming
      1. 9.5.1 USB Interface
      2. 9.5.2 Device Configuration
        1. 9.5.2.1 Interface Number 0
        2. 9.5.2.2 Interface Number 1
        3. 9.5.2.3 Interface Number 2
        4. 9.5.2.4 Interface Number 3
      3. 9.5.3 Interface Sequence
        1. 9.5.3.1 Power On, Attach, and Playback Sequence
        2. 9.5.3.2 Play, Stop, and Detach Sequence
        3. 9.5.3.3 Record Sequence
        4. 9.5.3.4 Suspend and Resume Sequence
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
      3. 10.2.3 Application Curves
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Documentation Support
      1. 13.1.1 Related Documentation
    2. 13.2 Community Resources
    3. 13.3 Trademarks
    4. 13.4 Electrostatic Discharge Caution
    5. 13.5 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7 Specifications

7.1 Absolute Maximum Ratings

Over operating free-air temperature range (unless otherwise noted).(1)
MIN MAX UNIT
Supply voltage, VCCC, VCCP1, VCCP2, VCCX, VDD –0.3 4 V
Supply voltage differences, VCCC, VCCP1, VCCP2, VCCX, VDD ±0.1 V
Ground voltage differences, AGNDC, AGNDP, AGNDX, DGND, DGNDU ±0.1 V
Digital input voltage SEL0, SEL1, DIN –0.3 6.5 V
D+, D–, HID0, HID1, HID2, XTI, XTO, DOUT, SSPND –0.3 (VDD + 0.3) < 4 V
Analog input voltage VINL, VINR, VCOM, VOUTR, VOUTL –0.3 (VCCC + 0.3) < 4 V
Input current (any pins except supplies) ±10 mA
Ambient temperature under bias –40 125 °C
Junction temperature TJ 150 °C
Lead temperature (soldering, 5 s) 260 °C
Package temperature (IR reflow, peak) 250 °C
Storage temperature, Tstg –55 150 °C
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

7.2 ESD Ratings

VALUE UNIT
V(ESD) Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) ±2500 V
Charged-device model (CDM), per JEDEC specification JESD22-C101(2) ±1000
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

7.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)
MIN NOM MAX UNIT
Supply voltage 3 3.3 3.6 V
Supply current ADC, DAC operation 54 70 mA
USB suspend state 250 µA
Ambient temperature 0 25 85 °C

7.4 Thermal Information

THERMAL METRIC(1) PCM2903C UNIT
DB (SSOP)
28 PINS
RθJA Junction-to-ambient thermal resistance 64.5 °C/W
RθJC(top) Junction-to-case (top) thermal resistance 24.5 °C/W
RθJB Junction-to-board thermal resistance 25.4 °C/W
ψJT Junction-to-top characterization parameter 2.0 °C/W
ψJB Junction-to-board characterization parameter 25 °C/W
RθJC(bot) Junction-to-case (bottom) thermal resistance — °C/W
(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953.

7.5 Electrical Characteristics

All specifications at TA = 25°C, VCCC = VCCP1 = VCCP2 = VCCX = VDD = 3.3 V, fS = 44.1 kHz, fIN = 1 kHz, 16-bit data, unless otherwise noted.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
DIGITAL INPUT/OUTPUT
Host interface Apply USB Revision 2.0, full speed
Audio data format USB isochronous data format
INPUT LOGIC
VIH High-level input voltage D+, D– 2 VDD VDC
XTI, HID0, HID1, and HID2 0.7 VDD VDD
SEL0, SEL1 2 5.25
DIN 0.7 VDD 5.25
VIL Low-level input voltage D+, D– 0.8 VDC
XTI, HID0, HID1, and HID2 0.3 VDD
SEL0, SEL1 0.8
DIN 0.3 VDD
IIH High-level input current D+, D–, XTI, SEL0, SEL1 VIN = 3.3 V ±10 μA
HID0, HID1, and HID2 VIN = 3.3 V 50 80
DIN VIN = 3.3 V 65 100
IIL Low-level input current D+, D–, XTI, SEL0, SEL1 VIN = 0 V ±10 μA
HID0, HID1, and HID2 VIN = 0 V ±10
DIN VIN = 0 V ±10
OUTPUT LOGIC
VOH High-level output voltage D+, D– 2.8 VDC
DOUT IOH = –4 mA 2.8
SSPND IOH = –2 mA 2.8
VOL Low-level output voltage D+, D– 0.3 VDC
DOUT IOL = 4 mA 0.5
SSPND IOL = 2 mA 0.5
CLOCK FREQUENCY
Input clock frequency, XTI 11.994 12 12.006 MHz
ADC CHARACTERISTICS
Resolution 8, 16 Bits
Audio data channel 1, 2 Channel
ADC CLOCK FREQUENCY
fS Sampling frequencies 8, 11.025, 16, 22.05, 32, 44.1, 48 kHz
ADC DC ACCURACY
Gain mismatch, channel-to-channel ±1 ±5 % of FSR
Gain error ±2 ±10 % of FSR
Bipolar zero error ±0 % of FSR
ADC DYNAMIC PERFORMANCE(1)
THD+N Total harmonic distortion plus noise VIN = –1 dB 0.01% 0.02%
VIN = –60 dB 5%
Dynamic range A-weighted 81 89 dB
SNR Signal-to-noise ratio A-weighted 81 89 dB
Channel separation 80 85 dB
ANALOG INPUT
Input voltage 0.6 VCCC VPP
Center voltage 0.5 VCCC V
Input impedance 30 kΩ
Antialising filter frequency response –3 dB 150 kHz
fIN = 20 kHz –0.08 dB
ADC DIGITAL FILTER PERFORMANCE
Passband 0.454 fS Hz
Stop band 0.583 fS Hz
Passband ripple ±0.05 dB
Stop-band attenuation –65 dB
td Delay time 17.4/fS s
HPF frequency response –3 dB 0.078 fS/1000 Hz
DAC CHARACTERISTICS
Resolution 8, 16 Bits
Audio data channel 1, 2 Channel
DAC CLOCK FREQUENCY
fS Sampling frequencies 32, 44.1, 48 kHz
DAC DC ACCURACY
Gain mismatch channel-to-channel ±1 ±5 % of FSR
Gain error ±2 ±10 % of FSR
Bipolar zero error ±2 % of FSR
DAC DYNAMIC PERFORMANCE(2)
THD+N Total harmonic distortion plus noise VOUT = 0 dB 0.005% 0.016%
VOUT = –60 dB 3%
Dynamic range EIAJ, A-weighted 87 93 dB
SNR Signal-to-noise ratio EIAJ, A-weighted 90 96 dB
Channel separation 86 92 dB
ANALOG OUTPUT
VO Output voltage 0.6 VCCC VPP
Center voltage 0.5 VCCC V
Load impedance AC coupling 10 kΩ
LPF frequency response –3 dB 250 kHz
f = 20 kHz –0.03 dB
DAC DIGITAL FILTER PERFORMANCE
Passband 0.445 fS Hz
Stop band 0.555 fS Hz
Passband ripple ±0.1 dB
Stop-band attenuation –43 dB
td Delay time 14.3/fS s
POWER-SUPPLY REQUIREMENTS
VDD, VCCC, VCCP1, VCCP2, VCCX Voltage range 3 3.3 3.6 VDC
Supply current ADC, DAC operation 54 70 mA
Suspend mode(3) 250 μA
PD Power dissipation ADC, DAC operation 178 252 mW
Suspend mode(3) 0.83 mW
TEMPERATURE RANGE
Operating temperature range –25 85 °C
(1) fIN = 1 kHz, using a System Two™ audio measurement system by Audio Precision™ in RMS mode with a 20-kHz LPF and 400-Hz HPF in the calculation.
(2) fOUT = 1 kHz, using a System Two audio measuerment system by Audio Precision in RMS mode with a 20-kHz LPF and 400-Hz HPF.
(3) Under USB suspend state.

7.6 Typical Characteristics

7.6.1 Typical Characteristics: ADC

All specifications at TA = +25°C, VDD = VCCC = VCCP1 = VCCP2 = VCCx = 3.3 V, fs = 44.1 kHz, fIN = 1 kHz, 16-bit data, unless otherwise noted.
PCM2903C g001_bfs038.gif Figure 1. Total Harmonic Distortion + Noise at –1 dB vs Free-Air Temperature
PCM2903C g003_bfs038.gif Figure 3. Total Harmonic Distortion + Noise at –1 dB vs Supply Voltage
PCM2903C g005_bfs038.gif Figure 5. Total Harmonic Distortion + Noise at –1 dB vs Sampling Frequency
PCM2903C g002_bfs038.gif Figure 2. Dynamic Range and SNR vs Free-Air Temperature
PCM2903C g004_bfs038.gif Figure 4. Dynamic Range and SNR vs Supply Voltage
PCM2903C g006_bfs038.gif Figure 6. Dynamic Range and SNR vs Sampling Frequency

7.6.2 Typical Characteristics: DAC

All specifications at TA = +25°C, VDD = VCCC = VCCP1 = VCCP2 = VCCx = 3.3 V, fs = 44.1 kHz, fIN = 1 kHz, 16-bit data, unless otherwise noted.
PCM2903C g007_bfs038.gif Figure 7. Total Harmonic Distortion + Noise at 0 dB vs Free-Air Temperature
PCM2903C g009_bfs038.gif Figure 9. Total Harmonic Distortion + Noise at 0 dB vs Supply Voltage
PCM2903C g011_bfs038.gif Figure 11. Total Harmonic Distortion + Noise at 0 dB vs Sampling Frequency
PCM2903C g008_bfs038.gif Figure 8. Dynamic Range and SNR vs Free-Air Temperature
PCM2903C g010_bfs038.gif Figure 10. Dynamic Range and SNR vs Supply Voltage
PCM2903C tc_dac_dr_snr-frq_bfs038.gif Figure 12. Dynamic Range and SNR vs Sampling Frequency

7.6.3 Typical Characteristics: ADC Output Spectrum

All specifications at TA = 25°C, VDD = VCCC = VCCP1 = VCCP2 = VCCx = 3.3 V, fs = 44.1 kHz, fIN = 1 kHz, 16-bit data, unless otherwise noted.
PCM2903C g013_bfs038.gif Figure 13. Output Spectrum (–1 dB, N = 8192)
PCM2903C g014_bfs038.gif Figure 14. Output Spectrum (–60 dB, N = 8192)

7.6.4 Typical Characteristics: DAC Output Spectrum

All specifications at TA = 25°C, VDD = VCCC = VCCP1 = VCCP2 = VCCx = 3.3 V, fs = 44.1 kHz, fIN = 1 kHz, 16-bit data, unless otherwise noted.
PCM2903C g015_bfs038.gif Figure 15. Output Spectrum (0 dB, N = 8192)
PCM2903C g016_bfs038.gif Figure 16. Output Spectrum (–60 dB, N = 8192)

7.6.5 Typical Characteristics: Supply Current

All specifications at TA = 25°C, VDD = VCCC = VCCP1 = VCCP2 = VCCx = 3.3 V, fs = 44.1 kHz, fIN = 1 kHz, 16-bit data, unless otherwise noted.
PCM2903C g017_bfs038.gif Figure 17. Operational and Suspend Supply Current vs Supply Voltage
PCM2903C g018_bfs038.gif Figure 18. Operational Supply Current vs Sampling Frequency

7.6.6 Typical Characteristics: ADC Digital Decimation Filter Frequency Response

All specifications at TA = 25°C, VDD = VCCC = VCCP1 = VCCP2 = VCCx = 3.3 V, fs = 44.1 kHz, fIN = 1 kHz, 16-bit data, unless otherwise noted.
PCM2903C g019_bfs038.gif Figure 19. Overall Characteristics
PCM2903C g021_bfs038.gif Figure 21. Passband Ripple
PCM2903C g020_bfs038.gif Figure 20. Stop-Band Attenuation
PCM2903C g022_bfs038.gif Figure 22. Transition-Band Response

7.6.7 Typical Characteristics: ADC Digital High-Pass Filter Frequency Response

All specifications at TA = 25°C, VDD = VCCC = VCCP1 = VCCP2 = VCCx = 3.3 V, fs = 44.1 kHz, fIN = 1 kHz, 16-bit data, unless otherwise noted.
PCM2903C g023_bfs038.gif Figure 23. Stop-Band Characteristics
PCM2903C g024_bfs038.gif Figure 24. Passband Characteristics

7.6.8 Typical Characteristics: ADC Analog Antialiasing Filter Frequency Response

All specifications at TA = 25°C, VDD = VCCC = VCCP1 = VCCP2 = VCCx = 3.3 V, fs = 44.1 kHz, fIN = 1 kHz, 16-bit data, unless otherwise noted.
PCM2903C g025_bfs038.gif Figure 25. Stop-Band Characteristics
PCM2903C g026_bfs038.gif Figure 26. Passband Characteristics

7.6.9 Typical Characteristics: DAC Digital Interpolation Filter Frequency Response

All specifications at TA = 25°C, VDD = VCCC = VCCP1 = VCCP2 = VCCx = 3.3 V, fs = 44.1 kHz, fIN = 1 kHz, 16-bit data, unless otherwise noted.
PCM2903C g027_bfs038.gif Figure 27. Stop-Band Attenuation
PCM2903C g029_bfs038.gif Figure 29. Transition-Band Response
PCM2903C g028_bfs038.gif Figure 28. Passband Ripple

7.6.10 Typical Characteristics: DAC Analog Fir Filter Frequency Response

All specifications at TA = 25°C, VDD = VCCC = VCCP1 = VCCP2 = VCCx = 3.3 V, fs = 44.1 kHz, fIN = 1 kHz, 16-bit data, unless otherwise noted.
PCM2903C g030_bfs038.gif Figure 30. Stop-Band Characteristics
PCM2903C g031_bfs038.gif Figure 31. Passband Characteristics

7.6.11 Typical Characteristics: DAC Analog Low-Pass Filter Frequency Response

All specifications at TA = 25°C, VDD = VCCC = VCCP1 = VCCP2 = VCCx = 3.3 V, fs = 44.1 kHz, fIN = 1 kHz, 16-bit data, unless otherwise noted.
PCM2903C g032_bfs038.gif Figure 32. Stop-Band Characteristics
PCM2903C g033_bfs038.gif Figure 33. Passband Characteristics