IC DAC 24BIT STER 192KHZ 28-QSOP

PCM1680DBQR

Manufacturer Part NumberPCM1680DBQR
DescriptionIC DAC 24BIT STER 192KHZ 28-QSOP
ManufacturerTexas Instruments
PCM1680DBQR datasheet
 


Specifications of PCM1680DBQR

Number Of Bits24Data InterfaceSerial
Number Of Converters8Voltage Supply SourceAnalog and Digital
Power Dissipation (max)605mWOperating Temperature-25°C ~ 70°C
Mounting TypeSurface MountPackage / Case28-QSOP
Lead Free Status / RoHS StatusLead free / RoHS CompliantSettling Time-
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www.ti.com..................................................................................................................................................
24-Bit, 192-kHz Sampling, Enhanced Multilevel, Delta-Sigma, Audio
FEATURES
1
24-Bit Resolution
2345
Analog Performance:
– Dynamic Range: 105 dB Typical
– SNR: 105 dB Typical
– THD+N: 0.002% Typical
– Full-Scale Output: 3.9 V
PP
4x/8x Oversampling Interpolation Filter:
– Stop-Band Attenuation: –50 dB
– Passband Ripple: ±0.04 dB
Sampling Frequency: 5 kHz to 200 kHz
System Clock: 128 f
, 192 f
, 256 f
S
S
f
, 768 f
, or 1152 f
with Autodetect
S
S
S
Zero Flags for Selectable Channel
Combinations
2
Serial Port (SPI™/I
C™) for Mode Control
User-Programmable Functions:
– Flexible Audio Data Formats
2
– Right-Justified, I
S™, and Left-Justified
– 16-, 18-, 20-, and 24-Bit Audio Data
– 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
1
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.
System Two, Audio Precision are trademarks of Audio Precision, Inc.
2
SPI is a trademark of Motorola.
3
I2C, I2S are trademarks of NXP Semiconductors.
4
All other trademarks are the property of their respective owners.
5
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.
Digital-to-Analog Converter
APPLICATIONS
Integrated A/V Receivers
DVD Movie and Audio Players
HDTV Receivers
Car Audio Systems
DVD Add-On Cards for High-End PCs
Digital Audio Workstations
Typical
Other Multichannel Audio Systems
DESCRIPTION
The PCM1680 is a CMOS, monolithic integrated
circuit
digital-to-analog converters (DACs) and support
, 384 f
, 512
S
S
circuitry in a small SSOP-28. The DACs use TI's
enhanced multilevel delta-sigma (ΔΣ) architecture to
achieve excellent signal-to-noise performance and a
high tolerance to clock jitter.
The PCM1680 accepts industry-standard audio data
formats with 16-bit to 24-bit audio data. Sampling
rates up to 200 kHz are supported. The PCM1680
provides a full set of user-programmable functions
through a serial control port, using an SPI or I
interface.
PCM1680
SLES133B – MARCH 2005 – REVISED OCTOBER 2008
which
features
eight
24-bit
Copyright © 2005–2008, Texas Instruments Incorporated
audio
2
C

PCM1680DBQR Summary of contents

  • Page 1

    ... The PCM1680 provides a full set of user-programmable functions through a serial control port, using an SPI or I interface. PCM1680 SLES133B – MARCH 2005 – REVISED OCTOBER 2008 which features eight 24-bit Copyright © 2005–2008, Texas Instruments Incorporated audio 2 C ...

  • Page 2

    ... PCM1680 SLES133B – MARCH 2005 – REVISED OCTOBER 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 ...

  • Page 3

    ... Pins 14: MS/ADR, MC/SCL, MD/SDA, MSEL. (3) Pins 1, 28: ZERO1, ZERO2. (4) Pins 1, 4, 28: ZERO1, MD/SDA, ZERO2. (5) Analog performance characteristics are measured using the System Two™ Cascade audio measurement system by Audio Precision™. Copyright © 2005–2008, Texas Instruments Incorporated = kHz, system clock = 512 f DD ...

  • Page 4

    ... V 4.75 5 5.25 91 110 102 mA 106 455 605 510 mW 530 –25 +70 °C 70 °C/W ZERO2 V 1 OUT V 2 OUT V COM AGND2 OUT V 4 OUT V 5 OUT V 6 OUT AGND1 OUT V 8 OUT Copyright © 2005–2008, Texas Instruments Incorporated ...

  • Page 5

    ... Zero-flag output 1 ZERO2 28 O Zero-flag output 2 (1) Schmitt-trigger input. (2) Pull-down in SPI mode. 2 (3) Open-drain output mode. (4) Pull-down. Copyright © 2005–2008, Texas Instruments Incorporated SLES133B – MARCH 2005 – REVISED OCTOBER 2008 TERMINAL FUNCTIONS DESCRIPTION (1) (1) 1 and V 2 OUT OUT (1) 3 and V ...

  • Page 6

    ... Output Amp and COM Low-Pass Filter V OUT Output Amp and Low-Pass Filter V OUT Output Amp and Low-Pass Filter V OUT Output Amp and Low-Pass Filter V OUT Output Amp and Low-Pass Filter V OUT Power Supply B0033-01 Copyright © 2005–2008, Texas Instruments Incorporated ...

  • Page 7

    ... Frequency [ f Figure 1. FREQUENCY RESPONSE (SLOW ROLL-OFF) 0 −20 −40 −60 −80 −100 −120 −140 Frequency [ f Figure 3. Copyright © 2005–2008, Texas Instruments Incorporated = kHz, system clock = 512 f S 0.05 0.04 0.03 0.02 0.01 0.00 −0.01 −0.02 −0.03 −0.04 −0.05 0 G001 5 ...

  • Page 8

    ... G007 Product Folder Link(s): PCM1680 www.ti.com , and 24-bit data, unless otherwise noted. S DE-EMPHASIS ERROR – Frequency – kHz Figure 6. DE-EMPHASIS ERROR – Frequency – kHz Figure 8. Copyright © 2005–2008, Texas Instruments Incorporated 14 G006 20 G008 ...

  • Page 9

    ... Frequency – kHz Figure 9. TYPICAL CHARACTERISTICS: ANALOG FILTER All specifications 25C −10 −20 −30 −40 −50 −60 −70 Copyright © 2005–2008, Texas Instruments Incorporated = 48 kHz, system clock = 512 f , and 24-bit data, unless otherwise noted 0 kHz kHz S S 0.4 0.3 0.2 ...

  • Page 10

    ... Product Folder Link(s): PCM1680 www.ti.com , and 24-bit data, unless otherwise noted S DYNAMIC RANGE vs SUPPLY VOLTAGE 5.00 V – Supply Voltage – Figure 13. CHANNEL SEPARATION vs SUPPLY VOLTAGE 5.00 V – Supply Voltage – Figure 15. Copyright © 2005–2008, Texas Instruments Incorporated 5.25 G013 5.25 G015 ...

  • Page 11

    ... TEMPERATURE 110 108 106 104 102 100 98 96 − − Free-Air Temperature − Figure 18. Copyright © 2005–2008, Texas Instruments Incorporated = 48 kHz, system clock = 512 f , and 24-bit data, unless otherwise noted S S 110 108 106 104 102 100 98 96 − G016 ...

  • Page 12

    ... Figure 20 shows the timing requirements for the system clock input. For optimal performance important to use a clock source with low phase jitter and noise. Texas Instruments’ PLL170x multi-clock generator is an excellent choice for providing the PCM1680 system clock source. Table 1. System Clock Frequencies for Common Audio Sampling Frequencies ...

  • Page 13

    ... LRCK, is changed or when SCK and/or BCK is interrupted at least for a 3-bit clock cycle. If SCK, BCK, and LRCK are provided continuously after this suspended condition, the internal operation is resynchronized automatically within the following 3/f Copyright © 2005–2008, Texas Instruments Incorporated Figure 21 shows the operation of this function. With the > ...

  • Page 14

    ... Right Left Right Left Right Left Right Product Folder Link(s): PCM1680 www.ti.com 2 S, and left-justified. The ANALOG OUTPUT V 1 OUT V 2 OUT V 3 OUT V 4 OUT V 5 OUT V 6 OUT V 7 OUT V 8 OUT Copyright © 2005–2008, Texas Instruments Incorporated ...

  • Page 15

    ... MSB 2 ( Data Format; L-Channel = LOW, R-Channel = HIGH LRCK BCK (= DATA MSB (3) Left-Justified Data Format; L-Channel = HIGH, R-Channel = LOW LRCK BCK (= DATA MSB Copyright © 2005–2008, Texas Instruments Incorporated 1/f S L-Channel LSB MSB MSB LSB MSB LSB MSB LSB LSB 1/f ...

  • Page 16

    ... ZERO1 (PIN 1) DATA1 L-ch N/A DATA4 DATA1 Product Folder Link(s): PCM1680 www.ti.com 1 (LS) 1.4 V 1.4 V T0010-04 MIN UNIT (1) 1/( 1/( 1/( 768 512-f system clock; 32x 128-f system clock ZERO2 (PIN 28) DATA1 R-ch DATA[1:4] DATA[1:3] DATA[2:4] Copyright © 2005–2008, Texas Instruments Incorporated ...

  • Page 17

    ... MSB IDX6 IDX5 IDX4 IDX3 Register Index (or Address) Figure 24. Control Data Word Format for IDX6 IDX5 IDX4 IDX3 Copyright © 2005–2008, Texas Instruments Incorporated 4. Table 4. Interface Mode Control PIN FUNCTION INTERFACE MODE PIN 2 PIN 3 SPI ADR SCL Figure 24 IDX2 IDX1 ...

  • Page 18

    ... MS and MC clocks, t (MCL) t (MCY) t (MDS) t (MDH) PARAMETER Figure 26. Interface Timing 1 1 Product Folder Link(s): PCM1680 www.ti.com t (MHH) t (MSH) LSB T0013-03 MIN UNIT 100 ( LSB 0 ADR R/W Copyright © 2005–2008, Texas Instruments Incorporated ...

  • Page 19

    ... A master can read any PCM1680 register using a single access. The master sends a PCM1680 slave address with a read bit after transferring the register address. Then the PCM1680 transfers the data in the register specified. Figure diagram of the read operation. Copyright © 2005–2008, Texas Instruments Incorporated 8 9 1−8 9 ...

  • Page 20

    ... Figure 30. Interface Timing Product Folder Link(s): PCM1680 www.ti.com ACK Read Data NACK t (SDA- (SDA-R) (P-SU) MIN MAX 100 4.7 4.7 4 4.7 4 250 0 900 1000 B 1000 B 1000 B 1000 B 1000 B 4 400 0 Copyright © 2005–2008, Texas Instruments Incorporated M Sp R0002-02 Stop T0050-01 UNIT kHz ...

  • Page 21

    ... Oversampling rate control Zero-flag combination select Digital attenuation mode select 2 Zero-detect status (read-only interface only) Copyright © 2005–2008, Texas Instruments Incorporated Table 6. The MSB of all registers is fixed to 0. Each register also RESET DEFAULT REGISTER 0 dB, no attenuation 1–6, 16, 17 Mute disabled 7, 18 DAC1– ...

  • Page 22

    ... AT82 AT81 (1) (1) (1) (1) (1) RSV RSV RSV RSV RSV MUT8 (1) (1) (1) (1) (1) RSV RSV RSV RSV RSV DAC8 Copyright © 2005–2008, Texas Instruments Incorporated B0 AT10 AT20 AT30 AT40 AT50 AT60 MUT1 DAC1 FMT0 DMC (1) RSV (1) RSV AT70 AT80 MUT7 DAC7 ...

  • Page 23

    ... The attenuation data for each channel can be set individually. The attenuation level can be calculated using the following formula: Attenuation level (dB × (ATx[7:0] Where ATx[7: through 255. For ATx[7:0] DEC through 154 with DAMS = 1, the attenuation is set to infinite attenuation (mute). Copyright © 2005–2008, Texas Instruments Incorporated B11 B10 ...

  • Page 24

    ... Product Folder Link(s): PCM1680 www.ti.com MUT6 MUT5 MUT4 MUT3 MUT2 MUT1 RSV RSV RSV RSV MUT8 MUT7 DAC6 DAC5 DAC4 DAC3 DAC2 DAC1 RSV RSV RSV RSV DAC8 DAC7 1 through V 8. When OUT OUT Copyright © 2005–2008, Texas Instruments Incorporated B0 B0 ...

  • Page 25

    ... ZREV: Zero-Flag Polarity Select Default value: 0 ZREV = 0 Zero-flag pins high at a zero detect (default) ZREV = 1 Zero-flag pins low at a zero detect The ZREV bit allows the user to select the polarity of the zero-flag pins. Copyright © 2005–2008, Texas Instruments Incorporated B11 B10 ...

  • Page 26

    ... 384 f and sampling clock frequency ≤ 48 kHz S or 192 f and sampling clock frequency ≤ 96 kHz S Product Folder Link(s): PCM1680 www.ti.com RSV RSV RSV RSV RSV RSV Copyright © 2005–2008, Texas Instruments Incorporated B0 ...

  • Page 27

    ... ZERO[8:1]: Zero-Detect Status (Read-Only, I Default value: N/A The ZERO[8:1] bits show the status of zero detect for each channel. The status is set to '1' by detecting a zero state without regard to the ZREV bit setting. Copyright © 2005–2008, Texas Instruments Incorporated B11 B10 B9 B8 ...

  • Page 28

    ... – OPA2134 Additional Low-Pass OPA337 Filter Circuits − 3 for External Biasing Applications COM Product Folder Link(s): PCM1680 www.ti.com 1 through V 8. These channels are OUT = 5 V. The internal Application pin for COM S0056-01 Copyright © 2005–2008, Texas Instruments Incorporated ...

  • Page 29

    ... CONNECTION DIAGRAMS A basic connection diagram is shown in components. Texas Instruments’ PLL170x is used to generate the system clock input at SCK, as well as generating the clock for the audio signal processor. The use of series resistors (22 Ω to 100 Ω) is recommended for SCK, LRCK, BCK, DATA1, DATA2, DATA3, and DATA4. The series resistor combines with the stray printed circuit board (PCB) capacitance and device input capacitance to form a low-pass filter that removes high-frequency noise from the digital signal, thus reducing high-frequency emission ...

  • Page 30

    ... – 1 OPA2134 Figure 33. Dual-Supply Filter Circuit Figure 34. A ground plane is recommended, with the Product Folder Link(s): PCM1680 www.ti.com /2. The out-of-band noise S Figure 31 and Figure 33, and are OUT S0053-01 Figure 35 Copyright © 2005–2008, Texas Instruments Incorporated ...

  • Page 31

    ... D Digital Logic and Audio Processor Digital Section RF Choke or Ferrite Bead V DD Digital Logic and Audio Processor Digital Section Copyright © 2005–2008, Texas Instruments Incorporated Analog Power AGND +5VA + DGND PCM1680 AGND Analog Section Return Path for Digital Signals Figure 34. Recommended PCB Layout ...

  • Page 32

    ... Changes from Revision A (August 2006) to Revision B Changed 0. 0.486 V in the DC Accuracy section of the Electrical Characteristics table CC CC Corrected footnote 1 in Figure 26 ........................................................................................................................................ 18 32 Submit Documentation Feedback 2008.................................................................................................................................................. Revision History ................................................................................................ Product Folder Link(s): PCM1680 www.ti.com Page .................................... 3 Copyright © 2005–2008, Texas Instruments Incorporated ...

  • Page 33

    ... PCM1680DBQ ACTIVE PCM1680DBQG4 ACTIVE PCM1680DBQR ACTIVE PCM1680DBQRG4 ACTIVE (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 ...

  • Page 34

    ... TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Type Drawing PCM1680DBQR SSOP/ DBQ QSOP PACKAGE MATERIALS INFORMATION Pins SPQ Reel Reel A0 (mm) Diameter Width (mm) W1 (mm) 28 2000 330.0 16.4 6.5 Pack Materials-Page 1 20-Oct-2008 B0 (mm) K0 (mm Pin1 (mm) ...

  • Page 35

    ... Device Package Type PCM1680DBQR SSOP/QSOP PACKAGE MATERIALS INFORMATION Package Drawing Pins SPQ Length (mm) DBQ 28 2000 Pack Materials-Page 2 20-Oct-2008 Width (mm) Height (mm) 346.0 346.0 33.0 ...

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    ... 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. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’ ...