Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsData collecting ICsData acquisition IC - DA converter (DAC) QSOP 28

FEATURES APPLICATIONS

DESCRIPTION

PCM1680

www.ti.com

.................................................................................................................................................. SLES133B – MARCH 2005 – REVISED OCTOBER 2008

24-Bit, 192-kHz Sampling, Enhanced Multilevel, Delta-Sigma, Audio

Digital-to-Analog Converter

• Integrated A/V Receivers

2345

• 24-Bit Resolution

• DVD Movie and Audio Players

• Analog Performance:

• HDTV Receivers

– Dynamic Range: 105 dB Typical

• Car Audio Systems

– SNR: 105 dB Typical

• DVD Add-On Cards for High-End PCs

– THD+N: 0.002% Typical

• Digital Audio Workstations

– Full-Scale Output: 3.9 V

Typical

• Other Multichannel Audio Systems

• 4x/8x Oversampling Interpolation Filter:

– Stop-Band Attenuation: – 50 dB

– Passband Ripple: ± 0.04 dB

The PCM1680 is a CMOS, monolithic integrated

• Sampling Frequency: 5 kHz to 200 kHz

circuit which features eight 24-bit audio

digital-to-analog converters (DACs) and support

• System Clock: 128 f

, 192 f

, 256 f

, 384 f

, 512

circuitry in a small SSOP-28. The DACs use TI's

, 768 f

, or 1152 f

with Autodetect

enhanced multilevel delta-sigma ( Δ Σ ) architecture to

• Zero Flags for Selectable Channel

achieve excellent signal-to-noise performance and a

Combinations

high tolerance to clock jitter.

• Serial Port ( SPI™/ I

C™) for Mode Control

The PCM1680 accepts industry-standard audio data

• User-Programmable Functions:

formats with 16-bit to 24-bit audio data. Sampling

rates up to 200 kHz are supported. The PCM1680

– Flexible Audio Data Formats

provides a full set of user-programmable functions

– Right-Justified, I

S™, and Left-Justified

through a serial control port, using an SPI or I

– 16-, 18-, 20-, and 24-Bit Audio Data

interface.

– Digital Attenuation: Mode Selectable

– 0 dB to – 63 dB, 0.5-dB/step

– 0 dB to – 100 dB, 1-dB/step

– Soft Mute

– Digital De-Emphasis

– Digital Filter Roll-Off: Sharp or Slow

• Single Power-Supply Operation: 5-V Analog,

5-V Digital

• Package: SSOP-28 (150 mil)

• Pin-Compatible with PCM1780

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.

2 System Two, Audio Precision are trademarks of Audio Precision, Inc.

3 SPI is a trademark of Motorola.

4 I2C, I2S are trademarks of NXP Semiconductors.

5 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.

Summary of content (38 pages)

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PCM1680 www.ti.com.................................................................................................................................................. SLES133B – MARCH 2005 – REVISED OCTOBER 2008 24-Bit, 192-kHz Sampling, Enhanced Multilevel, Delta-Sigma, Audio Digital-to-Analog Converter FEATURES APPLICATIONS • 24-Bit Resolution • Analog Performance: – Dynamic Range: 105 dB Typical – SNR: 105 dB Typical – THD+N: 0.002% Typical – Full-Scale Output: 3.
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PCM1680 SLES133B – MARCH 2005 – REVISED OCTOBER 2008.................................................................................................................................................. 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.
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PCM1680 www.ti.com.................................................................................................................................................. SLES133B – MARCH 2005 – REVISED OCTOBER 2008 ELECTRICAL CHARACTERISTICS (continued) All specifications at TA = +25°C, VCC = VDD = 5 V, fS = 48 kHz, system clock = 512 fS, and 24-bit data, unless otherwise noted.
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PCM1680 SLES133B – MARCH 2005 – REVISED OCTOBER 2008.................................................................................................................................................. www.ti.com ELECTRICAL CHARACTERISTICS (continued) All specifications at TA = +25°C, VCC = VDD = 5 V, fS = 48 kHz, system clock = 512 fS, and 24-bit data, unless otherwise noted.
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PCM1680 www.ti.com.................................................................................................................................................. SLES133B – MARCH 2005 – REVISED OCTOBER 2008 TERMINAL FUNCTIONS TERMINAL NAME NO.
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PCM1680 SLES133B – MARCH 2005 – REVISED OCTOBER 2008.................................................................................................................................................. www.ti.
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PCM1680 www.ti.com.................................................................................................................................................. SLES133B – MARCH 2005 – REVISED OCTOBER 2008 TYPICAL CHARACTERISTICS: DIGITAL FILTER (DE-EMPHASIS OFF) All specifications at TA = +25°C, VCC = 5 V, fS = 48 kHz, system clock = 512 fS, and 24-bit data, unless otherwise noted. FREQUENCY RESPONSE (SHARP ROLL-OFF) PASSBAND FREQUENCY RESPONSE (SHARP ROLL-OFF) 0.05 0 0.04 −20 0.03 0.
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PCM1680 SLES133B – MARCH 2005 – REVISED OCTOBER 2008.................................................................................................................................................. www.ti.com TYPICAL CHARACTERISTICS: DE-EMPHASIS FILTER All specifications at TA = +25°C, VCC = 5 V, fS = 48 kHz, system clock = 512 fS, and 24-bit data, unless otherwise noted. DE-EMPHASIS DE-EMPHASIS ERROR 0.5 0 fS = 32 kHz −1 0.3 De-Emphasis Error – dB −2 De-Emphasis Level – dB fS = 32 kHz 0.
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PCM1680 www.ti.com.................................................................................................................................................. SLES133B – MARCH 2005 – REVISED OCTOBER 2008 TYPICAL CHARACTERISTICS: DE-EMPHASIS FILTER (continued) All specifications at TA = +25°C, VCC = 5 V, fS = 48 kHz, system clock = 512 fS, and 24-bit data, unless otherwise noted. DE-EMPHASIS DE-EMPHASIS ERROR 0.5 0 fS = 48 kHz −1 0.
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PCM1680 SLES133B – MARCH 2005 – REVISED OCTOBER 2008.................................................................................................................................................. www.ti.com TYPICAL CHARACTERISTICS: ANALOG DYNAMIC PERFORMANCE All specifications at TA = 25C, VCC = 5 V, fS = 48 kHz, system clock = 512 fS, and 24-bit data, unless otherwise noted Supply Voltage Characteristics TOTAL HARMONIC DISTORTION + NOISE vs SUPPLY VOLTAGE DYNAMIC RANGE vs SUPPLY VOLTAGE 0.
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PCM1680 www.ti.com.................................................................................................................................................. SLES133B – MARCH 2005 – REVISED OCTOBER 2008 TYPICAL CHARACTERISTICS: ANALOG DYNAMIC PERFORMANCE (continued) All specifications at TA = 25C, VCC = 5 V, fS = 48 kHz, system clock = 512 fS, and 24-bit data, unless otherwise noted Temperature Characteristics TOTAL HARMONIC DISTORTION + NOISE vs TEMPERATURE DYNAMIC RANGE vs TEMPERATURE 0.
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PCM1680 SLES133B – MARCH 2005 – REVISED OCTOBER 2008.................................................................................................................................................. www.ti.com SYSTEM CLOCK INPUT The PCM1680 requires a system clock for operating the digital interpolation filters and multilevel ΔΣ modulators. The system clock is applied at the SCK (pin 5) input. Table 1 shows examples of system clock frequencies for common audio sampling rates.
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PCM1680 www.ti.com.................................................................................................................................................. SLES133B – MARCH 2005 – REVISED OCTOBER 2008 POWER-ON-RESET FUNCTION The PCM1680 includes a power-on-reset function. Figure 21 shows the operation of this function. With the system clock active and VCC > 3 V (typical, 2.2 V to 3.7 V), the power-on-reset function is enabled.
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PCM1680 SLES133B – MARCH 2005 – REVISED OCTOBER 2008.................................................................................................................................................. www.ti.com AUDIO DATA FORMATS AND TIMING The PCM1680 supports industry-standard audio data formats, including right-justified, I2S, and left-justified. The data formats are shown in Figure 22. Data formats are selected using the format bits, FMT[2:0], located in control register 9 of the PCM1680.
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PCM1680 www.ti.com..................................................................................................................................................
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PCM1680 SLES133B – MARCH 2005 – REVISED OCTOBER 2008.................................................................................................................................................. www.ti.com 1.4 V LRCK t(BCH) t(BCL) t(LS) 1.4 V BCK t(BCY) t(LH) DATA1, DATA2, DATA3, DATA4 1.
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PCM1680 www.ti.com.................................................................................................................................................. SLES133B – MARCH 2005 – REVISED OCTOBER 2008 MODE CONTROL The PCM1680 has many programmable functions which can be controlled in the software control mode. The functions are controlled by programming and reading the internal registers using the SPI or I2C interface. These two interfaces for mode control can be selected by MSEL (pin 14).
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PCM1680 SLES133B – MARCH 2005 – REVISED OCTOBER 2008.................................................................................................................................................. www.ti.com INTERFACE TIMING REQUIREMENTS Figure 26 shows a detailed timing diagram for the serial control interface. Special attention to the setup and hold times is required. Also, t(MSS) and t(MSH), which define minimum delays between edges of the MS and MC clocks, require special attention.
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PCM1680 www.ti.com.................................................................................................................................................. SLES133B – MARCH 2005 – REVISED OCTOBER 2008 PACKET PROTOCOL A master device must control packet protocol, which consists of a start condition, slave address, read/write bit, data if writing or acknowledge if reading, and a stop condition. The PCM1680 supports only slave receivers and slave transmitters.
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PCM1680 SLES133B – MARCH 2005 – REVISED OCTOBER 2008.................................................................................................................................................. www.ti.
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PCM1680 www.ti.com.................................................................................................................................................. SLES133B – MARCH 2005 – REVISED OCTOBER 2008 MODE CONTROL REGISTERS USER-PROGRAMMABLE MODE CONTROLS The PCM1680 includes a number of user-programmable functions which are accessed via control registers. The registers are programmed using the serial control interface which is discussed in the Mode Control section of this data sheet.
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PCM1680 SLES133B – MARCH 2005 – REVISED OCTOBER 2008.................................................................................................................................................. www.ti.com Table 6.
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PCM1680 www.ti.com..................................................................................................................................................
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PCM1680 SLES133B – MARCH 2005 – REVISED OCTOBER 2008.................................................................................................................................................. www.ti.
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PCM1680 www.ti.com..................................................................................................................................................
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PCM1680 SLES133B – MARCH 2005 – REVISED OCTOBER 2008.................................................................................................................................................. www.ti.com DREV: Output Phase Select Default value: 0 DREV = 0 Normal output (default) DREV = 1 Inverted output The DREV bit is the output analog signal phase control. DMF[1:0]: Sampling Frequency Selection for the De-Emphasis Function Default value: 00b DMF[1:0] De-Emphasis Sampling Rate Selection 00 44.
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PCM1680 www.ti.com.................................................................................................................................................. SLES133B – MARCH 2005 – REVISED OCTOBER 2008 B15 B14 B13 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 0 IDX6 IDX5 IDX4 IDX3 IDX2 IDX1 IDX0 DAMS AZRO1 AZRO0 RSV RSV RSV RSV RSV REGISTER 13 DAMS: Digital Attenuation Mode Select Default value: 0 DAMS = 0 Fine step, 0.
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PCM1680 SLES133B – MARCH 2005 – REVISED OCTOBER 2008.................................................................................................................................................. www.ti.com ANALOG OUTPUTS The PCM1680 includes eight independent output channels, VOUT1 through VOUT8. These channels are unbalanced outputs, each capable of driving 3.9 VPP typical into a 5-kΩ ac load with VCC = 5 V.
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PCM1680 www.ti.com.................................................................................................................................................. SLES133B – MARCH 2005 – REVISED OCTOBER 2008 APPLICATION INFORMATION CONNECTION DIAGRAMS A basic connection diagram is shown in Figure 32, with the necessary power-supply bypassing and decoupling components.
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PCM1680 SLES133B – MARCH 2005 – REVISED OCTOBER 2008.................................................................................................................................................. www.ti.com POWER SUPPLY AND GROUNDING The PCM1680 requires 5 V for the analog supply and digital supply. The 5-V supply is used to power not only the DAC analog and output filter circuitry, but also the digital filter and serial interface circuitry.
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PCM1680 www.ti.com.................................................................................................................................................. SLES133B – MARCH 2005 – REVISED OCTOBER 2008 Digital Power +VD Analog Power DGND AGND +5VA VDD Digital Logic and Audio Processor +VS –VS VCC Output Circuits DGND PCM1680 Digital Ground AGND Digital Section Analog Ground Analog Section Return Path for Digital Signals B0031-02 Figure 34.
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PCM1680 SLES133B – MARCH 2005 – REVISED OCTOBER 2008.................................................................................................................................................. www.ti.com Revision History Changes from Revision A (August 2006) to Revision B ................................................................................................ Page • • 32 Changed 0.49 VCC to 0.486 VCC in the DC Accuracy section of the Electrical Characteristics table ........................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE MATERIALS INFORMATION www.ti.com 16-Aug-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device PCM1680DBQR Package Package Pins Type Drawing SSOP DBQ 28 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 2000 330.0 16.4 Pack Materials-Page 1 6.5 B0 (mm) K0 (mm) P1 (mm) 10.3 2.1 8.0 W Pin1 (mm) Quadrant 16.
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PACKAGE MATERIALS INFORMATION www.ti.com 16-Aug-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) PCM1680DBQR SSOP DBQ 28 2000 367.0 367.0 38.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46C and to discontinue any product or service per JESD48B. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.