PCM1690

Manufacturer Part NumberPCM1690
DescriptionThe PCM1690 is a high-performance, single-chip, 24-bit, eight-channel, audio digital-to-analog converter (DAC) with differential outputs
ManufacturerTexas Instruments
PCM1690 datasheet
 


Specifications of PCM1690

# Dacs8# Inputs / # Outputs0 / 8
ArchitectureCurrent Segment DACResolution(bits)24
Sampling Rate(max)(khz)192Control InterfaceSPI,I2C,H/W
Digital Audio InterfaceL,R,I2S,TDM,DSPThd+n(typ)(%)0.002
Dac Snr(typ)(db)113Power Consumption(typ)(mw)558
Additional FeaturesAnalog Mute,TDM InterfaceOperating Temperature Range(c)-40 to 85
Analog Voltage Av/dd(min)(v)4.5Analog Voltage Av/dd(max)(v)5.5
Pin/package48HTSSOP  
1
Page 1
2
Page 2
3
Page 3
4
Page 4
5
Page 5
6
Page 6
7
Page 7
8
Page 8
9
Page 9
10
Page 10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
Page 1/45

Download datasheet (2Mb)Embed
Next
Burr-Brown Audio
www.ti.com..............................................................................................................................................
24-Bit, 192-kHz Sampling, Enhanced Multi-Level ΔΣ,
Eight-Channel Audio Digital-to-Analog Converter
FEATURES
1
24-Bit Delta-Sigma DAC
2345
8-Channel DAC:
– High Performance: Differential, f
– THD+N: –94 dB
– SNR: 113 dB
– Dynamic Range: 113 dB
– Sampling Rate: 8 kHz to 192 kHz
– System Clock: 128 f
, 192 f
S
512 f
, 768 f
, 1152 f
S
S
S
– Differential Voltage Output: 8 V
– Analog Low-Pass Filter Included
– 4x/8x Oversampling Digital Filter:
– Passband Ripple: ±0.0018 dB
– Stop Band Attenuation: –75 dB
– Zero Flag
Flexible Audio Interface:
2
– I/F Format: I
S™, Left-/Right-Justified, DSP,
TDM
– Data Length: 16, 20, 24, 32 Bits
Flexible Mode Control:
2
– 3-Wire SPI™, 2-Wire I
C™-Compatible
Serial Control Interface, or
Hardware Control
2
Multi Functions via SPI or I
C I/F:
– Audio I/F Format Select: I
Right-Justified, DSP, TDM
– Digital Attenuation and Soft Mute
– Digital De-Emphasis: 32 kHz, 44.1 kHz,
48 kHz
– Data Polarity Control
– Power Down
Multi Functions via H/W Control:
– Audio I/F Format Select: I
– Digital De-Emphasis Filter: 44.1 kHz
Analog Mute by Clock Halt Detection
External RESET Pin
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.
Blu-ray is a trademark of Blu-ray Disk Association.
2
SPI is a trademark of Motorola.
3
I2S, I2C 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.
Power Supplies:
– 5 V for Analog and 3.3 V for Digital
Package: HTSSOP-48
= 48 kHz
Operating Temperature Range:
S
– –40°C to +85°C
APPLICATIONS
Blu-ray™ DVD Players
HD DVD Players
, 256 f
, 384 f
,
S
S
S
AV Receivers
Home Theaters
PP
Car Audio External Amplifiers
Car Audio AVN Applications
DESCRIPTION
The PCM1690 is a high-performance, single-chip,
24-bit, eight-channel, audio digital-to-analog converter
(DAC) with differential outputs. The eight-channel,
24-bit
delta-sigma (ΔΣ) modulator and supports 8-kHz to
192-kHz sampling rates and a 16-/20-/24-/32-bit width
digital audio input word on the audio interface. The
audio interface of the PCM1690 supports the
time-division-multiplexed (TDM) format in addition to
the standard I
formats.
The PCM1690 can be controlled through a three-wire,
SPI-compatible interface, or two-wire, I
2
S, Left-Justified,
serial interface in software, which provides access to
all functions including digital attenuation, soft mute,
de-emphasis, and so forth. Also, hardware control
mode provides a subset of user-programmable
functions through two control pins. The PCM1690 is
available in a 12-mm × 8-mm (12-mm × 6-mm body)
HTSSOP-48 package.
2
S, TDM
SBAS448A – OCTOBER 2008 – REVISED JANUARY 2009
DAC
employs
an
enhanced,
2
S, left-justified, right-justified, and DSP
2
C-compatible
Copyright © 2008–2009, Texas Instruments Incorporated
PCM1690
multi-level

PCM1690 Summary of contents

  • Page 1

    ... S, Left-Justified, serial interface in software, which provides access to all functions including digital attenuation, soft mute, de-emphasis, and so forth. Also, hardware control mode provides a subset of user-programmable functions through two control pins. The PCM1690 is available in a 12-mm × 8-mm (12-mm × 6-mm body) HTSSOP-48 package TDM SBAS448A – OCTOBER 2008 – REVISED JANUARY 2009 ...

  • Page 2

    ... Digital input clock frequency System clock frequency, SCKI Analog output voltage Differential To ac-coupled GND Analog output load resistance To dc-coupled GND Analog output load capacitance Digital output load capacitance Operating free-air temperature PCM1690 consumer grade 2 Submit Documentation Feedback 2009.............................................................................................................................................. (1) ORDERING INFORMATION SPECIFIED TEMPERATURE PACKAGE RANGE MARKING – ...

  • Page 3

    ... – OUT (5) ( OUT Product Folder Link(s): PCM1690 PCM1690 SBAS448A – OCTOBER 2008 – REVISED JANUARY 2009 , 24-bit data, and Sampling S PCM1690 MIN TYP MAX UNIT LJ, RJ, DSP, TDM 16, 20, 24, Bits 32 MSB first, twos complement 8 48 192 kHz 2 ...

  • Page 4

    ... Audio Precision System II, Average mode with 20-kHz LPF and 400-Hz HPF. (dual 192 kHz : SCKI = 128 Figure 41 Product Folder Link(s): PCM1690 www.ti.com , 24-bit data, and Sampling S PCM1690 MIN TYP MAX UNIT 16 24 Bits ±2.0 ± FSR ± ...

  • Page 5

    ... DD S (1) Full power-down kHz 192 kHz S (1) Full power-down PCM1690 Consumer grade HTSSOP-48 JA Product Folder Link(s): PCM1690 PCM1690 SBAS448A – OCTOBER 2008 – REVISED JANUARY 2009 , 24-bit data, and Sampling S PCM1690 MIN TYP MAX UNIT 0.328 × f ...

  • Page 6

    ... Audio data input for DAC1 and DAC2 No No Audio data input for DAC3 and DAC4 No No Audio data input for DAC5 and DAC6 No No Audio data input for DAC7 and DAC8 Product Folder Link(s): PCM1690 www.ti.com RSV2 48 47 VCC2 AGND2 46 RSV2 45 44 ...

  • Page 7

    ... Analog ground 2 — — Analog power supply — — Reserved, tied to analog ground Product Folder Link(s): PCM1690 PCM1690 DESCRIPTION (1) with active low 2 ( de-emphasis control for hardware 2 C, format select for hardware control mode 2 C, reserve (set low) for ...

  • Page 8

    ... Submit Documentation Feedback 2009.............................................................................................................................................. FUNCTIONAL BLOCK DIAGRAM Audio Interface SCK Manager Digital Filter and Volume Control Interface 2 (SPI/I C/HW) Power Supply and Common Voltage Product Folder Link(s): PCM1690 www.ti.com VOUT1+ DAC VOUT1- VOUT2+ DAC VOUT2- VOUT3+ DAC VOUT3- VOUT4+ DAC VOUT4- ...

  • Page 9

    ... FREQUENCY RESPONSE PASSBAND 0.010 Sharp 0.008 Slow 0.006 0.004 0.002 0 0.002 - 0.004 - 0.006 - 0.008 - 0.010 - 2.0 1 Product Folder Link(s): PCM1690 PCM1690 , 24-bit data, and Sampling S (Single Rate) Sharp Slow 0.1 0.2 0.3 0.4 0.5 Normalized Frequency ( Figure 2. (Dual Rate) Sharp Slow 0.2 0.3 0.4 0.5 0.1 Normalized Frequency ( Figure 4. ...

  • Page 10

    ... Product Folder Link(s): PCM1690 www.ti.com , 24-bit data, and Sampling S DE-EMPHASIS CHARACTERISTIC (f = 44.1 kHz Frequency (kHz) Figure 8. ANALOG FILTER CHARACTERISTIC 10k 100k 1M Frequency (Hz) Figure 10. Copyright © 2008–2009, Texas Instruments Incorporated ...

  • Page 11

    ... Product Folder Link(s): PCM1690 PCM1690 , 24-bit data, and Sampling S DYNAMIC RANGE AND SNR vs TEMPERATURE Dynamic Range SNR Temperature ( C) ° Figure 12. DYNAMIC RANGE AND SNR vs SUPPLY VOLTAGE Dynamic Range SNR 4 ...

  • Page 12

    ... OUTPUT SPECTRUM (BPZ 32768 Frequency (kHz) Figure 17. Product Folder Link(s): PCM1690 www.ti.com , 24-bit data, and Sampling S OUTPUT SPECTRUM (–60 dB 32768 Frequency (kHz) Figure 16. 20 Copyright © 2008–2009, Texas Instruments Incorporated ...

  • Page 13

    ... DIN3 DIN4 VOLTAGE REFERENCE VCOM The PCM1690 includes a pin for the common-mode voltage output, VCOM. This pin should be connected to the analog ground via a decoupling capacitor. This pin can also be used to bias external high-impedance circuits, if they are required. Copyright © 2008–2009, Texas Instruments Incorporated ...

  • Page 14

    ... PCM1690 SBAS448A – OCTOBER 2008 – REVISED JANUARY SYSTEM CLOCK INPUT The PCM1690 requires an external system clock input applied at the SCKI input for DAC operation. The system clock operates at an integer multiple of the sampling frequency include 128 f , 192 f , 256 f , 384 f ...

  • Page 15

    ... SAMPLING MODE The PCM1690 supports three sampling modes (single rate, dual rate, and quad rate) in DAC operation. In single rate mode, the DAC operates at an oversampling frequency of x128 (except when SCKI = 128 f This mode is supported for sampling frequencies less than 50 kHz. In dual rate mode, the DAC operates at an oversampling frequency of x64 ...

  • Page 16

    ... At the same time, VOUT is immediately forced into the AGND1 level. To begin normal operation again, toggle RST high; the same power-up sequence is performed as the power-on reset shown in The PCM1690 does not require particular power-on sequences for VCC and VDD; it allows VDD on and then VCC on, or VCC on and then VDD on. From the viewpoint of the simultaneous power-on is recommended for avoiding unexpected responses on VOUTx ...

  • Page 17

    ... AUDIO SERIAL PORT OPERATION The PCM1690 audio serial port consists of six signals: BCK, LRCK, DIN1, DIN2, DIN3, and DIN4. BCK is a bit clock input. LRCK is a left/right word clock input or frame synchronization clock input. DIN1/2/3/4 are the audio data inputs for VOUT1–8. ...

  • Page 18

    ... Ch 2 (DIN1 (DIN2 (DIN3 (DIN4 LSB 1/f (64 BCKs (DIN1 (DIN2 (DIN3 (DIN4 Product Folder Link(s): PCM1690 www.ti.com LSB LSB MSB LSB ...

  • Page 19

    ... BCKs 32 BCKs (SCKI = 128 f and 256 f Only Product Folder Link(s): PCM1690 PCM1690 SBAS448A – OCTOBER 2008 – REVISED JANUARY 2009 BCKs 32 BCKs 32 BCKs 23 22 ...

  • Page 20

    ... LRS t LRH t t DIS DIH Figure 30 MIN BCY t BCY Product Folder Link(s): PCM1690 www.ti.com 1.4 V 1 Data Formats TYP MAX UNIT 1 LRW 1.4 V TYP MAX UNIT BCY 1/f – ...

  • Page 21

    ... VOUTX± Figure 31. DAC Outputs During Loss of Synchronization ZERO FLAG The PCM1690 has two ZERO flag pins (ZERO1 and ZERO2) that can be assigned to the combinations shown in Table 8. Zero flag combinations are selected through control register settings. If the input data of the left and right channel of all assigned channels remain at '0' for 1024 sampling periods (LRCK clock periods), the ZERO1/2 bits are set to a high level, logic '1' state ...

  • Page 22

    ... SBAS448A – OCTOBER 2008 – REVISED JANUARY AMUTE CONTROL The PCM1690 has an AMUTE control input, status output pins, and functionality. AMUTEI is the input control pin of the internal analog mute circuit. An AMUTEI low input causes the DAC output to cut-off from the digital input and forces it to the center level (0 ...

  • Page 23

    ... MS is set high to latch the data into the indexed mode control register. Also, the PCM1690 supports multiple write operations in addition to single write operations, which can be performed by sending the following N-times of the 8-bit register data after the first 16-bit register address and register data while keeping the MC clocks and low state ...

  • Page 24

    ... The next two bits of the address byte are selectable bits that can be set by MS/ADR0/RSV and TEST/ADR1/RSV. A maximum of four PCM1690s can be connected on the same bus at any one time. Each PCM1690 responds when it receives its own slave address. MSB ...

  • Page 25

    ... Figure 37. Framework for Write Operation READ OPERATION A master device can read the registers of the PCM1690. The value of the register address is stored in an indirect index register in advance. The master sends the PCM1690 slave address with a read bit after storing the register address. Then the PCM1690 transfers the data that the index register points to. ...

  • Page 26

    ... Figure 39. Repeated START t D-HD D- SCL-R S-HD t LOW t t S-SU HI Figure 39 STANDARD MODE MIN 4.7 4.7 4.0 4.7 4.0 250 0 4.0 0.2 × VDD 0.1 × VDD N/A Product Folder Link(s): PCM1690 www.ti.com STOP t t SDA-R P-SU t SDA-F FAST MODE MAX MIN MAX UNIT 100 400 kHz 1.3 s 1.3 s 0.6 s 0.6 s 0.6 s 100 ns 3450 0 900 ns 1000 ...

  • Page 27

    ... CONTROL REGISTER DEFINITIONS (SOFTWARE MODE ONLY) The PCM1690 has many user-programmable functions that are accessed via control registers, and are 2 programmed through the SPI or I along with reset default conditions and associated register address. Table 15. User-Programmable Mode Control Functions ...

  • Page 28

    ... System reset This bit controls system reset, the resynchronization between the system clock and sampling clock, and DAC operation restart. The mode control register is not reset and the PCM1690 does not go into a power-down state. Returning the SRST bit to '1' is unnecessary automatically set to '1' after triggering a system reset ...

  • Page 29

    ... S format format (default mode DSP format 2 S mode TDM format 2 S mode TDM format Product Folder Link(s): PCM1690 PCM1690 SBAS448A – OCTOBER 2008 – REVISED JANUARY 2009 , and quad rate for 128 f and 192 FMTDA2 FMTDA1 ...

  • Page 30

    ... DAC5/6 slow roll-off 0xxx DAC7/8 sharp roll-off 1xxx DAC7/8 slow roll-off 30 Submit Documentation Feedback 2009.............................................................................................................................................. OPEDA2 OPEDA1 OPEDA0 section of this data sheet. Product Folder Link(s): PCM1690 www.ti.com FLT3 FLT2 FLT1 FLT0 Copyright © 2008–2009, Texas Instruments Incorporated ...

  • Page 31

    ... DAC8 normal output 1xxx xxxx DAC8 inverted output Copyright © 2008–2009, Texas Instruments Incorporated REVDA7 REVDA6 REVDA5 REVDA4 Product Folder Link(s): PCM1690 PCM1690 SBAS448A – OCTOBER 2008 – REVISED JANUARY 2009 REVDA3 REVDA2 REVDA1 Submit Documentation Feedback 31 ...

  • Page 32

    ... DAC7 Mute enabled 0xxx xxxx DAC8 Mute disabled 1xxx xxxx DAC8 Mute enabled 32 Submit Documentation Feedback 2009.............................................................................................................................................. MUTDA7 MUTDA6 MUTDA5 MUTDA4 Product Folder Link(s): PCM1690 www.ti.com MUTDA3 MUTDA2 MUTDA1 Copyright © 2008–2009, Texas Instruments Incorporated ...

  • Page 33

    ... DAC8 zero input not detected 1xxx xxxx DAC8 zero input detected Copyright © 2008–2009, Texas Instruments Incorporated ZERO7 ZERO6 ZERO5 ZERO4 Product Folder Link(s): PCM1690 PCM1690 SBAS448A – OCTOBER 2008 – REVISED JANUARY 2009 ZERO3 ZERO2 ZERO1 Submit Documentation Feedback 33 ...

  • Page 34

    ... ZREV Zero flag polarity selection 0 High for zero detect (default) 1 Low for zero detect 34 Submit Documentation Feedback 2009.............................................................................................................................................. RSV DEMP1 DEMP0 RSV Product Folder Link(s): PCM1690 www.ti.com AZRO1 AZRO0 ZREV Copyright © 2008–2009, Texas Instruments Incorporated ...

  • Page 35

    ... Mute ... ... 0 Mute Product Folder Link(s): PCM1690 PCM1690 SBAS448A – OCTOBER 2008 – REVISED JANUARY 2009 RSV RSV RSV RSV ATDA12 ATDA11 ATDA10 ATDA22 ATDA21 ATDA20 ATDA32 ATDA31 ATDA30 ATDA42 ...

  • Page 36

    ... SCKI, LRCK, BCK, DIN1, DIN2, DIN3, and DIN4 for electromagnetic interference (EMI) reduction. POWER SUPPLY AND GROUNDING The PCM1690 requires +5 V for the analog supply and +3.3 V for the digital supply. The +5-V supply is used to power the DAC analog and output filter circuitry, and the +3.3-V supply is used to power the digital filter and serial interface circuitry ...

  • Page 37

    ... VCOM 23 TEST/ADR1/RSV 26 VCC1 24 MODE 25 through C are 10- F electrolytic capacitors less than 10 kΩ. 10 Figure 40. Basic Connection Diagram Product Folder Link(s): PCM1690 PCM1690 SBAS448A – OCTOBER 2008 – REVISED JANUARY 2009 C 3 LPF and Buffer through R are 22-Ω ...

  • Page 38

    ... Because the overall system performance is defined by the quality of the DACs and the associated analog output circuitry, high-quality audio op amps are recommended for the active filters. Texas Instruments’ OPA2134, OPA2353, and NE5532A dual op amps are shown in with the PCM1690. VOUT VOUT- ...

  • Page 39

    ... The PCM1690 should be oriented with the digital I/O pins facing the ground plane split/cut to allow for short, direct connections to the digital audio interface and control signals originating from the digital section of the board ...

  • Page 40

    ... NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Original (October 2008) to Revision A Changed Figure 40 ............................................................................................................................................................. 37 40 Submit Documentation Feedback 2009.............................................................................................................................................. Revision History .................................................................................................... Product Folder Link(s): PCM1690 www.ti.com Page Copyright © 2008–2009, Texas Instruments Incorporated ...

  • Page 41

    ... Status PCM1690DCA ACTIVE HTSSOP PCM1690DCAR ACTIVE HTSSOP PCM1690DCARG4 ACTIVE HTSSOP (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 42

    ...

  • Page 43

    ...

  • Page 44

    ...

  • Page 45

    ... 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’ ...