digital audio applications which achieve 96kHz sam-
pling rates with 24-bit audio data. PCM1728 uses a
newly developed, enhanced multi-level delta-sigma
modulator architecture that improves audio dynamic
performance and reduces jitter sensitivity in actual
applications. The internal digital filter operates at 8X
oversampling at a 96kHz sampling rate.
The PCM1728 has superior audio dynamic perfor-
mance, 24-bit resolution, and 96kHz sampling, mak-
ing it ideal for mid- to high-grade audio applications
such as CD, DVD, and musical instruments.
AGND2L
V
CC2
R
AGND2L
V
CC2
L
BCKIN
LRCIN
DIN
Serial
Input
I/F
DAC
8X Oversampling
Digital Filter with
Function
Controller
Enhanced
Multi-level
Delta-Sigma
Modulator
DAC
Low-pass
Filter
V
OUT
L
EXTL
I
2
S
DM1
DM0
IW0
IW1
MUTE
RST
Crystal/OSC
Mode
Control
I/F
Low-pass
Filter
V
OUT
R
EXTR
ZERO
SCK
Open Drain
Power Supply
XTI
XTO
CLKO
V
CC1
AGND1
V
DD
DGND
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111
NOTES: (1) Refer section of system clock. (2) External buffer is recommended. (3) Dynamic performance specs are tested with 20kHz low pass filter and THD+N
specs are tested with 30kHz LPF, 400Hz HPF, Average Mode.
®
PCM1728
2
PIN CONFIGURATION
PIN ASSIGNMENTS
PIN
1
NAME
LRCIN
DIN
BCKIN
CLKO
XTI
XTO
DGND
V
DD
V
CC
2R
AGND2R
EXTR
NC
V
OUT
R
AGND1
V
CC
1
V
OUT
L
NC
EXTL
AGND2L
V
CC
2L
ZERO
RST
IW0
IW1
MUTE
DM0
DM1
I
2
S
I/O
IN
IN
IN
OUT
IN
OUT
—
—
—
—
OUT
—
OUT
—
—
OUT
—
OUT
—
—
OUT
IN
IN
IN
IN
IN
IN
IN
DESCRIPTION
Left and Right Clock Input. This clock is equal to
the sampling rate - f
S
.
(1)
Serial Audio Data Input
(1)
Bit Clock Input for Serial Audio Data.
(1)
Buffered Output of Oscillator. Equivalent to
System Clock.
Oscillator Input (External Clock Input)
Oscillator Output
Digital Ground
Digital Power +5V
Analog Power +5V
Analog Ground
Rch, Common Pin of Analog Output Amp
No Connection
Rch, Analog Voltage Output of Audio Signal
Analog Ground
Analog Power +5V
Lch, Analog Voltage Output of Audio Signal
No Connection
Lch, Common Pin of Analog Output Amp
Analog Ground
Analog Power +5V
Zero Data Flag
Reset. When this pin is LOW, the DF and
modulators are held in reset.
(2)
Input Format Selection
(3)
Input Format Selection
(3)
Mute Control
De-emphasis Selection 1
(2)
De-emphasis Selection 2
(2)
Input Format Selection
(2)
LRCIN
DIN
BCKIN
CLKO
XTI
XTO
DGND
V
DD
V
CC
2R
1
2
3
4
5
6
7
PCM1728E
8
9
28 I
2
S
27
26
25
24
23
22
21
20
19
18
17
16
15
DM1
DM0
2
3
4
5
MUTE
IW1
IW0
RST
ZERO
V
CC
2L
AGND2L
EXTL
NC
V
OUT
L
V
CC
1
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
AGND2R 10
EXTR 11
NC 12
V
OUT
R 13
AGND1 14
PACKAGE INFORMATION
PRODUCT
PCM1728E
PACKAGE
28-Pin SSOP
PACKAGE DRAWING
NUMBER
(1)
324
24
25
26
27
28
NOTE: (1) For detailed drawing and dimension table, please see end of data
Input Logic Voltage .................................................. –0.3V to (V
DD
+ 0.3V)
Input Current (except power supply) ...............................................
±10mA
Power Dissipation .......................................................................... 400mW
Operating Temperature Range ......................................... –25°C to +85°C
Storage Temperature ...................................................... –55°C to +125°C
Lead Temperature (soldering, 5s) ................................................. +260°C
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.
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.
I received a call from Sasha today. When talking about the balancing car project, it seemed like it happened a long time ago. I have been too busy recently and always feel that I don’t have enough tim...
Hardware designers have begun to adopt FPGA technology in high-performance DSP designs because it can provide 10-100 times faster computing than PC-based or microcontroller-based solutions. Previou...[Details]
Assume that data is read from 8-bit AD (if it is a higher-bit AD, the data type can be defined as int), the subroutine is get_ad();
1. Limited secondary filtering
/* A value can be adjust...[Details]
Today, with the increasing integration of functions, mobile phones can also be used as portable media players (PMP), digital cameras, handheld computers (PDAs), and even global positioning systems ...[Details]
introduction
Throughout the history of automotive lighting, power has always played an important role. Initially, cars only needed headlights to see the road in the dark. Later, other light so...[Details]
Floating-point digital signal processing has become a constant requirement for precision technology, often in applications requiring high accuracy in areas such as aviation, industrial machinery, a...[Details]
The Portable Digital Data Acquisition System (PDDAS) uses LabVIEW Real-Time and PXI to control the wind tunnel test and record air pressure data from 128 different channels.
"The LabVIEW Real-...[Details]
1 Introduction
Solar street lights are mainly composed of four parts: solar photovoltaic cell components, batteries, charge and discharge controllers, and lighting fixtures. The bo...[Details]
introduction
For the voltage regulator modules (VRMs) that power the latest computer central processing units (CPUs), power supply designers have historically used multiphase interleaved b...[Details]
My colleague and I spent the day chatting in the hotel bar. We had met with several customers. We were both wondering how come these engineers we were meeting knew almost nothing about analog techn...[Details]
1. Principle of displacement angle sensor
The angle sensor is used to detect angles. It has a hole in its body that fits the LEGO axle. When connected to the RCX, the angle sensor counts once ...[Details]
In the analysis of electronic circuits, static analysis (also known as DC analysis) is the basis of circuit analysis. However, it is well known that electronic components are nonlinear, so the anal...[Details]
RS-422 and RS-485 are both serial data interface standards, which were developed and published by the Electronic Industries Association (EIA). RS-422 defines a balanced communication interface with a ...[Details]
I've been studying dot matrix recently. It looks simple, but it takes a while to master it completely! The 8*8 dot matrix hardware circuit I'm making now is like this. The row is driven by 74HC138 + t...[Details]
Overview
In spectral measurement, photomultiplier tubes (PMT) and charge-coupled devices (CCD) are often used as photoelectric converters. PMT is used in slow-changing, high-precision spectral...[Details]
Continuity test
A variety of devices need to be checked for continuity, including cable assemblies, printed circuit boards, and connectors to ensure that these components have the expected contin...[Details]
Analogue and Mixed Signal
京公网安备 11010802033920号
EEWORLD
