Burr Brown PCM1732U, PCM1732U-1K Datasheet

24-Bit, 96kHz, Stereo Audio

DIGITAL-TO-ANALOG CONVERTER

With HDCD® Decoder

49%
FPO

PCM1732

®

TM

FEATURES

● ENHANCED MULTI-LEVEL ∆Σ DAC

● INPUT AUDIO DATA WORD: 16-, 20-, 24-Bit

● SAMPLING FREQUENCY (fs): 16kHz - 96kHz

● SYSTEM CLOCK: 256, 384, 512, 768f

S

● HIGH PERFORMANCE:

THD+N: –96dB
Dynamic Range: 104dB
SNR: 104dB

● AUDIO OUTPUT LEVEL: 0.57 x VCC (Vp-p)

● 8x OVERSAMPLING DIGITAL FILTER WITH

HDCD DECODER:
Stopband Attenuation: –120dB
Passband Ripple: ±0.00001dB
HDCD Filter Optimized for 44.1kHz to 48kHz
and 88.2kHz to 96kHz

● MULTI-FUNCTIONS:

Digital De-emphasis
Soft Mute
Digital Attenuation
Zero Detect
Digital Gain Scaling
Reversible Output Phase

● +5V SINGLE-SUPPLY OPERATION

● SMALL SO-28 PACKAGE

© 1999 Burr-Brown Corporation PDS-1522B Printed in U.S.A. August, 1999

For most current data sheet and other product

information, visit www.burr-brown.com

®

DESCRIPTION

The PCM1732 is designed for mid- to high-grade
digital audio applications which achieve 96kHz sam­pling rates with 24-bit audio data, such as High Defi­nition Compatible Digital (HDCD) CD players, DVD
players, mini-disc players and AV receivers.

PCM1732 uses a newly-developed “enhanced, multi­level delta-sigma modulator” architecture that im­proves audio dynamic performance and reduces jitter
sensitivity.

The internal digital filter operates at 8x oversampling
at a 96kHz sampling rate, with –120dB stopband
attenuation.

International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: [phone]

Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: [phone] • Immediate Product Info: [phone]

®

HDCD® is a registered trademark of Pacific Microsonics, Inc.

HDCD

®

technology is provided under license from Pacific Microsonics
Inc. The PCM1732’s design is covered by the following patents:
In the USA: 45,479,168, 5,638,074, 5,640,161, 5,808,574, 5,838,274
5,854,600, 5,864,311, 5,872,531.
In Australia: 669,114.
Other patents pending.

Serial

Input

I/F

Mode

Control

I/F

HDCD
Hidden

Code

Recovery

HDCD

8x

Oversampling

Digital Filter

Enhanced

Multi-Level

∆Σ

Modulator

Crystal/OSC

XTI

SCK

XTO CLKO V

CC1

AGND1 VDDDGND

HDCD
Amplitude
Decoding

V

OUT

L

V

CC2

L

V

CC2

R

AGND2R

AGND2L

EXTL

PCM1732

Open
Drain

DAC

Low-Pass

Filter

Low-Pass

Filter

BPZ Control

V

OUT

R

EXTR
ZERO

DAC

ML/I2S

MC/DEM

MD/FSS
CS/IWO

MODE

MUTE

RST

LRCIN

DIN

BCKIN

Power Supply

Power-On Reset

NOTE: An HDCD license from Pacific Microsonics, Inc. is
required to purchase the PCM1732.

®

2

PCM1732

SPECIFICATIONS

24-Bit Data Performance

All specifications at +25°C, +VCC = +V

DD

= +5V, fS = 44.1kHz, and SYSCLK = 384fS, unless otherwise noted.

PCM1732

PARAMETER CONDITIONS MIN TYP MAX UNITS
RESOLUTION 24 Bits

DATA FORMAT

Audio Data Interface Format Standard/I

2

S
Data Bit Length 16/20/24 Selectable
Audio Data Format MSB-First, Binary Two’s Complement
Sampling Frequency (f

S

) 16 96 kHz

System Clock Frequency

(1)

256/384/512/768f

S

System Clock Duty Cycle 40 60 %

DIGITAL INPUT/OUTPUT LOGIC LEVEL

Input Logic Level (except XTI): V

IH

2.0 V

V

IL

0.8 V

Output Logic Level (CLKO): V

OH

I

OH

= 2mA 4.5 V

V

OL

I

OL

= 4mA 0.5 V

CLKO PERFORMANCE

(2)

Output Rise Time 20 ~ 80% VDD, 10pF 5.5 ns
Output Fall Time 80 ~ 20% V

DD

, 10pF 4 ns

Output Duty Cycle 10pF Load 30 %

DYNAMIC PERFORMANCE

(3, 4)

THD+N VO = 0dB fS = 44.1kHz –96 –90 dB

f

S

= 96kHz –94 dB

V

O

= –60dB fS = 44.1kHz –42 dB

Dynamic Range f

S

= 44.1kHz, EIAJ A-weighted 98 104 dB

f

S

= 96kHz, A-weighted 103 dB

Signal-to-Noise Ratio

(5)

fS = 44.1kHz, EIAJ A-weighted 98 104 dB

f

S

= 96kHz, A-weighted 103 dB

Channel Separation f

S

= 44.1kHz 96 104 dB

f

S

= 96kHz 101 dB

DC ACCURACY

Gain Error ±1.0 ±3.0 % of FSR
Gain Mismatch Channel-to-Channel ±1.0 ±3.0 % of FSR
Bipolar Zero Error V

O

= 0.5VCC at Bipolar Zero ±30 ±60 mV

ANALOG OUTPUT

Output Voltage

(6)

Full Scale (0dB) 0.57 V

CC

Vp-p

Center Voltage 0.5 V

CC

V

Load Impedance AC Load 5 kΩ

DIGITAL FILTER PERFORMANCE
Filter Characteristics 1

(f

S

= 44.1kHz/48kHz optimal)

Passband ±0.002dB 0.471f

S

–3dB 0.487f

S

Stopband 0.515f

S

Passband Ripple < 0.453f

S

±0.0001 dB

Stopband Attenuation Stopband = 0.515f

S

–109 dB

Stopband = 0.520f

S

–123 dB

Delay Time 81/f

S

sec

Filter Characteristics 2

(f

S

= 88.2kHz/96kHz optimal)

Passband ±0.005dB 0.395f

S

–3dB 0.441f

S

Stopband 0.538f

S

Passband Ripple < 0.341f

S

±0.0001 dB

Stopband Attenuation Stopband = 0.538f

S

–132 dB

Delay Time 31/f

S

sec

De-Emphasis Error ±0.1 dB

INTERNAL ANALOG FILTER

–3dB Bandwidth 100 kHz
Passband Response f = 20kHz –0.16 dB

POWER SUPPLY REQUIREMENTS

Voltage Range V

DD, VCC

4.5 5 5.5 VDC

Supply Current: I

CC

+ I

DD

fS = 44.1kHz 85 105 mA

f

S

= 96kHz 93 mA

Power Dissipation f

S

= 44.1kHz 425 525 mW

f

S

= 96kHz 465 mW

TEMPERATURE RANGE

Operating –25 +70 °C
Storage –55 +100 °C
Thermal Resistance,

θ

JA

67 °C/W

NOTES: (1) Refer to the System Clock section of this data sheet. (2) An external buffer is recommended. (3) Dynamic performance specifications are tested with 20kHz low-pass
filter and THD+N specifications are tested with 30kHz LPF, 400Hz HPF, Average Mode. (4) Dynamic performance specifications are tested with HDCD gain scaling set to analog
gain scaling. (5) SNR is tested with infinite zero detection off. (6) Output level is for sine wave. DAC outputs 0.64 V

CC

(peak-to-peak) due to filter response as transient.

®

3 PCM1732

SPECIFICATIONS

16-Bit Data Performance

All specifications at +25°C, +VDD = +V

CC

= +5V, fS = 44.1kHz, and SYSCLK = 384fS, unless otherwise noted. For discussion of HDCD scaling options, see the

Applications Considerations section of this data sheet.

PCM1732U
PARAMETER CONDITIONS MIN TYP MAX UNITS
DYNAMIC ANALOG PERFORMANCE,

STANDARD CD, ANALOG HDCD SCALING

(1)

Total Harmonic Distortion + Noise

V

O

= 0dB 0dBFS –95 dB

V

O

= –60dB –37 dB
Dynamic Range EIAJ A-Weighted 99 dB
Output Voltage, Sine Wave 0dBFS

(2)

0.57V

CC

Vp-p

DYNAMIC ANALOG PERFORMANCE,
HDCD CD, ANALOG HDCD SCALING

(3)

Total Harmonic Distortion + Noise

VO = 0dB 0dBFS –94 dB
V

O

= –60dB –38 dB
Dynamic Range EIAJ A-Weighted

(4)

104 dB

Output Voltage, Sine Wave 0dBFS, Without Peak Extend

(2)

0.57V

CC

Vp-p

0dBFS, With Peak Extend

(5)

0.285V

CC

Vp-p

+6dBFS

(5, 6)

0.57V

CC

Vp-p

DYNAMIC ANALOG PERFORMANCE,
Standard CD, Digital HDCD SCALING

(1)

Total Harmonic Distortion + Noise

V

O

= 0dB 0dBFS –92 dB

V

O

= –60dB –33 dB
Dynamic Range EIAJ A-Weighted 96 dB
Output Voltage, Sine Wave 0dBFS 0.285V

CC

Vp-p

DYNAMIC ANALOG PERFORMANCE
HDCD CD, Digital HDCD SCALING

(2)

Total Harmonic Distortion + Noise

VO = 0dB 0dBFS –91 dB
V

O

= –60dB –34 dB
Dynamic Range EIAJ A-Weighted

(4)

104 dB

Output Voltage, Sine Wave 0dBFS 0.285V

CC

Vp-p

+6dBFS

(5)

0.57V

CC

Vp-p

NOTES: (1) Without dither. (2) Gain pin is LOW. (3) With the rectangular PDF dither. (4) Including Peak Extend to +6dBFS. (5) Gain pin is HIGH. (6) +6dBFS is
the full Peak Extend, while dynamic range numbers are with Peak Extend.

The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes
no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.

®

4

PCM1732

PIN NAME I/O DESCRIPTION

1 LRCIN IN Left and Right Clock Input. This clock is equal to

the sampling rate, fS.

(1)

2 DIN IN Serial Audio Data Input

(1)

3 BCKIN IN Bit Clock Input for Serial Audio Data

(1)

4 CLKO OUT Buffered System Clock Output.
5 XTI IN Oscillator Input/External Clock Input

(2)

6 XTO OUT Oscillator Output
7 DGND — Digital Ground
8V

DD

— Digital Power +5V
9 HDCD OUT HDCD Encoded Data Detect
10 V

CC

2R — Analog Power +5V, Rch
11 AGND2R — Analog Ground, Rch
12 EXTR — Common Mode Voltage for Analog Output Amp,

Rch

13 V

OUT

R OUT Analog Voltage Output, Rch
14 AGND1 — Analog Ground
15 V

CC

1 — Analog Power +5V

16 V

OUT

L OUT Analog Voltage Output, Lch
17 EXTL — Common Mode Voltage for Analog Output Amp,

Lch
18 AGND2L OUT Analog Ground, Lch
19 V

CC

2L — Analog Power +5V, Lch
20 GAIN OUT External (analog) Gain Scaling
21 ZERO OUT Zero Data Flag
22 RST IN Reset. When this pin is LOW, the digital filter

and modulators are held in reset.

(3)

23 CS/IW0 IN Chip Select/Input Format Selection. When this

pin is LOW, the Mode Control interface is en­abled.

(4)

24 MODE IN

Mode Control Select: H = Software; L =
Hardware

(3)

25 MUTE IN Mute Control

(3)

26 MD/FSS IN Mode Data/Sampling Rate Range Select

(3)

27

MC/DEM

IN Mode Clock/De-Emphasis Select

(3)

28 ML/I2S IN Mode Latch/Input Format Select

(3)

NOTES: (1) Schmitt Trigger input. (2) CMOS logic level input. (3) Schmitt
Trigger input with pull-up resister. (4) Schmitt Trigger input with pull-down
resistor.

PIN ASSIGNMENTSPIN CONFIGURATION

ELECTROSTATIC
DISCHARGE SENSITIVITY

This integrated circuit can be damaged by ESD. Burr-Brown
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.

Power Supply Voltage ...................................................................... +6.5V

+V

CC

to +VDD Difference ................................................................... ±0.1V

Input Logic Voltage .................................................. –0.3V to (V

DD

+ 0.3V)

Input Current (except power supply)............................................... ±10mA

Power Dissipation .......................................................................... 750mW

Operating Temperature Range ......................................... –25°C to +70°C

Storage Temperature...................................................... –55°C to +125°C

Lead Temperature (soldering, 5s)................................................. +260°C

(reflow, 10s) .................................................... +235°C

ABSOLUTE MAXIMUM RATINGS

LRCIN

DIN

BCKIN

CLKO

XTI

XTO

DGND

V

DD

HDCD

V

CC

2R

AGND2R

EXTR

V

OUT

R

AGND1

ML/I

2

S
MC/DEM
MD/FSS
MUTE
MODE
CS/IWO
RST
ZERO
GAIN
V

CC

2L
AGND2L
EXTL
V

OUT

L

V

CC

1

1
2
3
4
5
6
7
8

9
10
11
12
13

14

28
27
26
25
24
23
22
21
20
19
18
17
16
15

PCM1732U

Top View SO-28

PACKAGE SPECIFIED
DRAWING TEMPERATURE PACKAGE ORDERING TRANSPORT

PRODUCT PACKAGE NUMBER

(1)

RANGE MARKING NUMBER

(2)

MEDIA

PCM1732U SO-28 217 –25°C to +70°C PCM1732U PCM1732U Rails

"""""PCM1732U/1K Tape and Reel

NOTES: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book. (2) Models with a slash (/ ) are
available only in Tape and Reel in the quantities indicated (e.g., /1K indicates 1000 devices per reel). Ordering 1000 pieces of “PCM1732U/1K” will get a single
1000-piece Tape and Reel. For detailed Tape and Reel mechanical information, refer to Appendix B of Burr-Brown IC Data Book.

PACKAGE/ORDERING INFORMATION

®

5 PCM1732

TYPICAL PERFORMANCE CURVES

All specifications at +25°C, +VCC = +V

DD

= +5V, fS = 44.1kHz, and 24-bit input data, SYSCLK = 384fS, unless otherwise noted.

108
107
106
105
104
103
102
101
100

99
98

DYNAMIC RANGE vs SUPPLY VOLTAGE

Power Supply Voltage (V)

4.25 4.50 4.75 5.00 5.25 5.50 5.75

Dynamic Range (dB)

fS = 44.1kHz, 24-Bit

fS = 44.1kHz, 16-Bit

HDCD with Peak Extend

–86
–88
–90
–92
–94
–96

98

100

–102

THD+N vs SUPPLY VOLTAGE

Power Supply Voltage (V)

4.25 4.50 4.75 5.00 5.25 5.50 5.75

THD+N at 0dB (dB)

fS = 44.1kHz, 16-Bit

HDCD With Peak Extend

fS = 44.1kHz, 24-Bit

–60
–70
–80

–90
–100
–110
–120
–130
–140

0246810

Frequency (kHz)

–60dB AMPLITUDE vs FREQUENCY

24-Bit Data

Amplitude (dB)

12 14 16 18 20

–60
–70
–80

–90
–100
–110
–120
–130
–140

–60dB AMPLITUDE vs FREQUENCY

16-Bit Data

Frequency (kHz)

0 2 4 6 8 101214161820

Amplitude (dB)

–60
–70
–80

–90
–100
–110
–120
–130
–140

–60dB AMPLITUDE vs FREQUENCY

HDCD Without Peak Extend

Frequency (kHz)

0 2 4 6 8 101214161820

Amplitude (dB)

–60
–70
–80

–90
–100
–110
–120
–130
–140

–60dB AMPLITUDE vs FREQUENCY

HDCD With Peak Extend

Frequency (kHz)

0 2 4 6 8 101214161820

Amplitude (dB)

®

6

PCM1732

TYPICAL PERFORMANCE CURVES

DIGITAL FILTER

06

Frequency (kHz)

DE-EMPHASIS FREQUENCY RESPONSE (32kHz)

Level (dB) Level (dB)

DE-EMPHASIS FREQUENCY RESPONSE (44.1kHz)

02468101214161820

0
–2
–4
–6
–8

–10

Level (dB)

DE-EMPHASIS FREQUENCY RESPONSE (48kHz)

0 2 4 6 8 10121416182022

Frequency (kHz)

0
–2
–4
–6
–8

–10

0

2

4 6 8 10 12 14

Frequency (kHz)

0
–2
–4
–6
–8

–10

Level (dB)

0

DE-EMPHASIS ERROR (32kHz)

DE-EMPHASIS ERROR (44.1kHz)

DE-EMPHASIS ERROR (48kHz)

0 2 4 6 8 10121416182022

Frequency (kHz)

2

468101214

Frequency (kHz)

0.02

0.01
0

–0.01
–0.02

0

2

4 6 8 101214161820

Level (dB)

0.02

0.01
0

–0.01
–0.02

Level (dB)

0.04

0.02
0

–0.02
–0.04

Level (dB)

0
–20
–40
–60
–80

–100
–120
–140
–160
–180
–200

FREQUENCY RESPONSE

(De-Emphasis Off, f

S

= 44.1kHz)

Frequency (x f

S

Hz)

0 3.50.5 1.0 1.5 2.0 2.5 3.0 4.0

Amplitude (dB)

0
–20
–40
–60
–80

–100
–120
–140
–160
–180
–200

FREQUENCY RESPONSE

(FSS High, 96kHz Filter)

Frequency (x f

S

Hz)

0 3.50.5 1.0 1.5 2.0 2.5 3.0 4.0

Amplitude (dB)

0.003

0.002

0.001

0

–0.001

–0.002

–0.003

PASSBAND RIPPLE CHARACTERISTICS

Frequency (x f

S

Hz)

0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5

Amplitude (dB)