The PCM1602A is a CMOS, monolithic integrated circuit that features six 24-bit audio digital-to-analog converters (DACs) and support circuitry in a small LQFP-48 package

PCM1602A

Manufacturer Part NumberPCM1602A
DescriptionThe PCM1602A is a CMOS, monolithic integrated circuit that features six 24-bit audio digital-to-analog converters (DACs) and support circuitry in a small LQFP-48 package
ManufacturerTexas Instruments
PCM1602A datasheet
 


Specifications of PCM1602A

# Dacs6# Inputs / # Outputs0 / 6
ArchitectureMultilevel Delta-SigmaResolution(bits)24
Sampling Rate(max)(khz)192Control InterfaceSPI
Digital Audio InterfaceL,R,I2SThd+n(typ)(%)0.004
Dac Snr(typ)(db)105Power Consumption(typ)(mw)171
Operating Temperature Range(c)-25 to 85Analog Voltage Av/dd(min)(v)4.5
Analog Voltage Av/dd(max)(v)5.5Pin/package48LQFP
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24-Bit, 192-kHz Sampling, 6-Channel, Enhanced Multilevel,
Delta-Sigma Digital-to-Analog Converter
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: 3.1 V
PP
4×/8× Oversampling Interpolation Filter:
– Stop-Band Attenuation: –55 dB
– Pass-Band Ripple: ±0.03 dB
Sampling Frequency:
– 5 kHz to 200 kHz (Channels 1 and 2)
– 5 kHz to 100 kHz (Channels 3, 4, 5, and 6)
Accepts 16-, 18-, 20-, and 24-Bit Audio Data
2
Data Formats: Standard, I
S™, and
Left-Justified
System Clock: 128 f
, 192 f
, 256 f
S
S
f
, or 768 f
S
S
User-Programmable Functions:
– Digital Attenuation: 0 dB to –63 dB,
0.5 dB/Step
– Soft Mute
– Zero Flags Can Be Used As General-
Purpose Logic Output
– Digital De-Emphasis
– Digital Filter Rolloff: Sharp or Slow
Dual-Supply Operation:
– 5-V Analog
– 3.3-V Digital
5-V Tolerant Digital Logic Inputs
Package: LQFP-48
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.
FilterPro is a trademark of Texas Instruments.
2
System Two, Audio Precision are trademarks of Audio Precision, Inc.
3
2
I
S is a trademark 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.
Check for Samples:
PCM1602A
APPLICATIONS
Integrated A/V Receivers
DVD Movie and Audio Players
HDTV Receivers
Car Audio Systems
DVD Add-On Cards for High-End PCs
, Typical
Digital Audio Workstations
Other Multichannel Audio Systems
DESCRIPTION
The PCM1602A is a CMOS, monolithic integrated
circuit that features six 24-bit audio digital-to-analog
converters (DACs) and support circuitry in a small
LQFP-48 package. The DACs use Texas Instruments'
enhanced multilevel, delta-sigma architecture that
employs fourth-order noise shaping and 8-level
amplitude
signal-to-noise performance and a high tolerance to
, 384 f
, 512
S
S
clock jitter.
The PCM1602A accepts industry-standard audio data
formats with 16- to 24-bit audio data. Sampling rates
up to 200 kHz (channels 1 and 2) or 100 kHz
(channels 3, 4, 5, and 6) are supported. A full set of
user-programmable functions is accessible through a
4-wire serial control port that supports register write
and read functions.
PCM1602A
SLES146A – AUGUST 2005 – REVISED OCTOBER 2010
quantization
to
achieve
excellent
Copyright © 2005–2010, Texas Instruments Incorporated

PCM1602A Summary of contents

  • Page 1

    ... Digital Audio Workstations • Other Multichannel Audio Systems DESCRIPTION The PCM1602A is a CMOS, monolithic integrated circuit that features six 24-bit audio digital-to-analog converters (DACs) and support circuitry in a small LQFP-48 package. The DACs use Texas Instruments' enhanced multilevel, delta-sigma architecture that ...

  • Page 2

    ... V 2 OUT OUT OUT OUT OUT OUT Product Folder Link(s): PCM1602A www.ti.com –0 –0 6 – V < ±0.1 V –0 6.5 V ±10 mA –40°C to 125°C –55°C to 150°C 150°C 260° ...

  • Page 3

    ... 192 kHz –90 dB OUT bipolar zero OUT CC , DAC3 through DAC6 disabled in register 8, and oversampling rate = Product Folder Link(s): PCM1602A PCM1602A MIN TYP MAX UNIT 24 Bits 2 Standard left-justified 16-, 18-, 20-, 24-bit, selectable MSB-first, binary 2s complement 5 200 kHz 5 100 ...

  • Page 4

    ... 192 kHz 44.1 kHz kHz 192 kHz S , DAC3 through DAC6 disabled in register 8, and oversampling rate = Copyright © 2005–2010, Texas Instruments Incorporated Product Folder Link(s): PCM1602A www.ti.com MIN TYP MAX UNIT 0. 0.5 V Vdc CC 5 kΩ 20/f S ± ...

  • Page 5

    ... Multilevel With Delta-Sigma Function Modulator DAC Controller DAC DAC Zero Detect Product Folder Link(s): PCM1602A PCM1602A SLES146A – AUGUST 2005 – REVISED OCTOBER 2010 V Output Amp and Low-Pass Filter Output Amp and V Low-Pass Filter V Output Amp and Low-Pass Filter V Output Amp and ...

  • Page 6

    ... Left and right clock input. This clock is equal to the sampling rate, f (2) Shift clock for serial control port (2) Serial data input for serial control port (3) Serial data output for serial control port (2) Latch enable for serial control port Product Folder Link(s): PCM1602A www.ti.com AGND3 ...

  • Page 7

    ... Can also be used as GPO pin. OUT Zero-data flag for V 6. Can also be used as GPO pin. OUT Zero-data flag. Logical AND of ZERO1 through ZERO6 Product Folder Link(s): PCM1602A PCM1602A SLES146A – AUGUST 2005 – REVISED OCTOBER 2010 , 192 f , 256 f , 384 f , 512 768 f S ...

  • Page 8

    ... G001 −1 −2 −3 −4 − 0.0 ] G003 Product Folder Link(s): PCM1602A www.ti.com , and 24-bit input data, unless S PASS-BAND FREQUENCY RESPONSE (SHARP ROLLOFF) 0.1 0.2 0.3 0.4 Frequency [ Figure 2. TRANSITION CHARACTERISTICS (SLOW ROLLOFF) 0.1 0.2 0.3 0.4 Frequency [ Figure 4. Copyright © 2005–2010, Texas Instruments Incorporated ...

  • Page 9

    ... G007 Product Folder Link(s): PCM1602A PCM1602A SLES146A – AUGUST 2005 – REVISED OCTOBER 2010 , and 24-bit input data, unless S DE-EMPHASIS ERROR ( kHz − Frequency − kHz G006 Figure 6. ...

  • Page 10

    ... S 106 104 S 102 0 dB/96 kHz, 384 f S 100 4.0 5.5 6.0 G011 Product Folder Link(s): PCM1602A www.ti.com , and 24-bit input data, unless S DE-EMPHASIS ERROR ( kHz − Frequency − kHz Figure 10. ...

  • Page 11

    ... S 104 102 192 kHz, 128 f S 100 98 96 5.5 6.0 4.0 G013 Product Folder Link(s): PCM1602A PCM1602A SLES146A – AUGUST 2005 – REVISED OCTOBER 2010 (set by OVER S CHANNEL SEPARATION 3 44.1 kHz, 384 kHz, 384 f S 192 kHz, 128 ...

  • Page 12

    ... G015 ) A 110 108 106 S 104 102 100 100 −50 G017 Product Folder Link(s): PCM1602A www.ti.com (set by OVER S DYNAMIC RANGE vs TEMPERATURE ( 44.1 kHz, 384 kHz, 384 f S 192 kHz, 128 f S − 100 T − ...

  • Page 13

    ... SYSTEM CLOCK AND RESET FUNCTIONS SYSTEM CLOCK INPUT The PCM1602A requires a system clock for operating the digital interpolation filters and multilevel delta-sigma modulators. The system clock is applied at the SCKI input (pin 38). frequencies for common audio sampling rates. Figure 19 shows the timing requirements for the system clock input. For optimal performance important to use a clock source with low phase jitter and noise ...

  • Page 14

    ... RST should be set to a logic-1. The external reset operation and timing is shown in 20 ns. After the initialization sequence is completed, the PCM1602A is set to its reset default state, as described in the Mode Control Registers section of this data sheet. During the reset period (1024 system clocks), the analog outputs are forced to the bipolar zero level (or V ...

  • Page 15

    ... DATA1, DATA2, and DATA3 into the audio interface serial shift register. Serial data is clocked into the PCM1602A on the rising edge of BCK. LRCK is the serial audio left/right clock used to latch serial data into the serial audio interface internal registers. ...

  • Page 16

    ... L-Channel N–2 N–1 LSB MSB 1/f S L-Channel N–2 N–1 LSB MSB Figure 22. Audio Data Input Formats Product Folder Link(s): PCM1602A www.ti.com R-Channel LSB MSB LSB MSB LSB ...

  • Page 17

    ... MIN 1/( Figure 23. Audio Interface Timing CHANNEL ANALOG OUTPUT Left Right Left Right Left Right Product Folder Link(s): PCM1602A PCM1602A SLES146A – AUGUST 2005 – REVISED OCTOBER 2010 1 (LB) 1.4 V 1.4 V T0010-06 MAX UNITS ) ( OUT ...

  • Page 18

    ... D5 D4 IDX2 IDX1 IDX0 Figure 25. Write Operation Timing Figure 24. For read operations, the R/W bit is set Figure 26. First, control register 11 must be written with the index Product Folder Link(s): PCM1602A www.ti.com shows the control data word LSB Register Data R0001-02 ...

  • Page 19

    ... INDEX “Y” INDEX “N” Figure 26. Read Operation Timing Product Folder Link(s): PCM1602A PCM1602A SLES146A – AUGUST 2005 – REVISED OCTOBER 2010 High Impedance ...

  • Page 20

    ... MC rising edge for LSB to ML rising edge. 20 Submit Documentation Feedback , which define minimum delays between the edges of the ML and MC (MLH) t (MCL) t (MCY) t (MDS) t (MDH) PARAMETER Figure 27. Control Interface Timing Product Folder Link(s): PCM1602A www.ti.com t (MHH) 1 (MLH) 1.4 V LSB LSB 1.4 V LSB 50 T0013-05 MIN ...

  • Page 21

    ... MODE CONTROL REGISTERS User-Programmable Mode Controls The PCM1602A includes a number of user-programmable functions that are accessed via control registers. The registers are programmed using the serial control interface that is previously discussed in this data sheet. Table 3 lists the available mode control functions, along with their reset default conditions and associated register index ...

  • Page 22

    ... RSV IDX4 IDX3 IDX2 IDX1 IDX0 ) IDX4 IDX3 IDX2 IDX1 IDX0 INC IDX4 IDX3 IDX2 IDX1 IDX0 OVER GPOE GPO6 Product Folder Link(s): PCM1602A www.ti.com AT16 AT15 AT14 AT13 AT12 AT11 AT26 AT25 AT24 AT23 AT22 AT21 ...

  • Page 23

    ... Alternatively, – 255) DEC DECIMAL VALUE 255 254 253 : 131 130 129 128 : 0 Product Folder Link(s): PCM1602A PCM1602A SLES146A – AUGUST 2005 – REVISED OCTOBER 2010 AT15 AT14 AT13 AT12 AT11 AT25 AT24 AT23 AT22 ...

  • Page 24

    ... RSV RSV x. OUT 6. The soft mute function is incorporated into the digital attenuators. When B11 B10 RSV RSV x. OUT ), equal to V /2. COM CC Product Folder Link(s): PCM1602A www.ti.com MUT6 MUT5 MUT4 MUT3 MUT2 MUT1 DAC6 DAC5 ...

  • Page 25

    ... The FMT[2:0] bits are used to select the data format for the serial audio interface. Copyright © 2005–2010, Texas Instruments Incorporated B11 B10 RSV RSV Product Folder Link(s): PCM1602A PCM1602A SLES146A – AUGUST 2005 – REVISED OCTOBER 2010 FLT CLKD CLKE FMT2 FMT1 ...

  • Page 26

    ... Setting all three DMC bits to 0 disables digital de-emphasis for all channels. 26 Submit Documentation Feedback B11 B10 RSV ZREV Product Folder Link(s): PCM1602A www.ti.com DREV DMF1 DMF0 DMC DMC DMC Copyright © 2005–2010, Texas Instruments Incorporated ...

  • Page 27

    ... Copyright © 2005–2010, Texas Instruments Incorporated B11 B10 INC REG6 Product Folder Link(s): PCM1602A PCM1602A SLES146A – AUGUST 2005 – REVISED OCTOBER 2010 REG5 REG4 REG3 REG2 REG1 ...

  • Page 28

    ... When general-purpose outputs are disabled (GPOE = 0), they default to the zero-flag function, ZERO1 through ZERO6. 28 Submit Documentation Feedback B11 B10 768 Product Folder Link(s): PCM1602A www.ti.com 192 Copyright © 2005–2010, Texas Instruments Incorporated B0 ...

  • Page 29

    ... OUT The output amplifiers include an RC continuous-time filter, which helps to reduce the out-of-band noise energy present at the DAC outputs due to the noise-shaping characteristics of the PCM1602A delta-sigma DACs. The frequency response of this filter is shown in out-of-band noise to an acceptable level for most applications. An external low-pass filter is required to provide sufficient out-of-band noise rejection ...

  • Page 30

    ... The active polarity of the zero-flag output can be inverted by setting to 1 the ZREV bit of control register 10. The reset default is active-high output, or ZREV = 0. 30 Submit Documentation Feedback ZERO FLAG Copyright © 2005–2010, Texas Instruments Incorporated Product Folder Link(s): PCM1602A www.ti.com ...

  • Page 31

    ... PCM1602A ZERO1−6 Figure 30. Basic Connection Diagram Product Folder Link(s): PCM1602A PCM1602A SLES146A – AUGUST 2005 – REVISED OCTOBER 2010 Figure 30 for all designs. Microcontroller 5-V Power Supply AGND3 AGND4 ...

  • Page 32

    ... See the Application Information section of this datasheet for more information. 32 Submit Documentation Feedback + AGND2 AGND1 MDO MDI MC ML Figure 31. Typical Application Diagram Product Folder Link(s): PCM1602A www.ti.com + + + + + + V 3 OUT V 4 OUT V 5 OUT V 6 OUT NC NC ...

  • Page 33

    ... POWER SUPPLIES AND GROUNDING The PCM1602A requires a 5-V analog supply and a 3.3-V digital supply. The 5-V supply is used to power the DAC analog and output filter circuitry, whereas the 3.3-V supply is used to power the digital filter and serial interface circuitry ...

  • Page 34

    ... The PCM1602A 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 35

    ... Power Supplies +5V AGND +V REG DGND PCM1602A AGND Analog Section Figure 35. Single-Supply PCB Layout Product Folder Link(s): PCM1602A PCM1602A SLES146A – AUGUST 2005 – REVISED OCTOBER 2010 Figure 35 shows the − Output Circuits Common Ground B0032-06 Submit Documentation Feedback 35 ...

  • Page 36

    ... PCM1602A SLES146A – AUGUST 2005 – REVISED OCTOBER 2010 The DAC section of the PCM1602A is based on a multi-bit delta-sigma architecture. This architecture uses a fourth-order noise shaper and an 8-level amplitude quantizer, followed by an analog low-pass filter. A block diagram of the delta-sigma modulator is shown in improved jitter tolerance, when compared to traditional 1-bit (2-level) delta-sigma designs. ...

  • Page 37

    ... Frequency [f S Figure 38 illustrates the simulated jitter sensitivity of the PCM1602A. To achieve best performance, the system clock jitter should be less than 300 picoseconds. This is easily achieved using a quality clock generation IC, like the PLL170x from Texas Instruments. 125 120 115 110 ...

  • Page 38

    ... Required for THD+N test Figure 39. Test Setup for THD+N Measurements For the PCM1602A DACs, THD+N is measured with a full-scale, 1-kHz digital sine wave as the test stimulus at the input of the DAC. The digital generator is set to a 24-bit audio word length and a sampling frequency of 44.1 kHz or 96 kHz ...

  • Page 39

    ... The SNR test provides a measure of the noise of the DAC. The input to the DAC is in all-0s data, and the DAC infinite-zero-detect mute function must be disabled (default condition at power up for the PCM1602A). This ensures that the delta-sigma modulator output is connected to the output amplifier circuit so that idle tones (if present) can be observed at the output ...

  • Page 40

    ... NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Original (August, 2005) to Revision A • Deleted lead temperature specification from • Added Differences Between the PCM1602APTR and PCM1602AMPTR 40 Submit Documentation Feedback REVISION HISTORY Absolute Maximum Ratings table .................................................................. ...

  • Page 41

    ... LQFP PCM1602APTG4 ACTIVE LQFP PCM1602APTR ACTIVE LQFP PCM1602APTRG4 ACTIVE LQFP (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

    ... TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Type Drawing PCM1602APTR LQFP PT PACKAGE MATERIALS INFORMATION Pins SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 48 1000 330.0 16.4 9.6 Pack Materials-Page 1 5-Oct-2010 Pin1 (mm) (mm) (mm) (mm) Quadrant 9.6 1.9 12.0 16.0 Q2 ...

  • Page 43

    ... Device Package Type PCM1602APTR LQFP PACKAGE MATERIALS INFORMATION Package Drawing Pins SPQ Length (mm 1000 Pack Materials-Page 2 5-Oct-2010 Width (mm) Height (mm) 346.0 346.0 33.0 ...

  • Page 44

    PT (S-PQFP-G48) 0, 5,50 TYP 7,20 SQ 6,80 9,20 SQ 8,80 1,45 1,35 1,60 MAX NOTES: A. All linear dimensions are in millimeters. B. This drawing is subject to change without notice. C. Falls within JEDEC ...

  • 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’ ...