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Burr-Brown Corporation

PCM1723 Datasheet Preview

PCM1723 Datasheet

DIGITAL-TO-ANALOG CONVERTER

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49%
FPO
PCM1723
PCM1723E
SBAS057A – JANUARY 1996 – REVISED MAY 2007
TM Stereo Audio
DIGITAL-TO-ANALOG CONVERTER
With Programmable PLL
FEATURES
q ACCEPTS 16-, 20-, OR 24-BIT INPUT DATA
q COMPLETE STEREO DAC: Includes Digital Filter
and Output Amp
q DYNAMIC RANGE: 94dB
q MULTIPLE SAMPLING FREQUENCIES:
16kHz, 22.05kHz, 24kHz
32kHz, 44.1kHz, 48kHz
64kHz, 88.2kHz, 96kHz
q PROGRAMMABLE PLL CIRCUIT:
256fS/384fS from 27MHz Master Clock
q NORMAL OR I2S™ DATA INPUT FORMATS
q SELECTABLE FUNCTIONS:
Soft Mute
Digital Attenuator (256 Steps)
Digital De-emphasis
q OUTPUT MODE: Left, Right, Mono, Mute
DESCRIPTION
The PCM1723 is a complete, low-cost, stereo audio
digital-to-analog converter (DAC) with a phase-locked
loop (PLL) circuit included. The PLL derives either a
256fS or 384fS system clock from an external 27MHz
reference frequency. The DAC contains a 3rd-order
delta-sigma (∆Σ) modulator, a digital interpolation filter,
and an analog output amplifier. The PCM1723 can
accept 16-, 20-, or 24-bit input data in either normal or
I2S formats.
The digital filter performs an 8X interpolation function
and includes selectable features such as soft mute,
digital attenuation and digital de-emphasis. The PLL
can be programmed for sampling at standard digital
audio frequencies as well as one-half and double
sampling frequencies.
The PCM1723 is ideal for applications which combine
compressed audio and video data such as DVD, DVD-
ROM, set-top boxes and MPEG sound cards.
BCKIN
LRCIN
DIN
ML
MC
MD
RSTB
Serial
Input
I/F
8X Oversampling
Digital Filter
with Function
Controller
Multi-level
Delta-Sigma
Modulator
Multi-level
Delta-Sigma
Modulator
Mode
Control
I/F
256fS/384fS
BPZ-Cont.
PLL OSC
DAC
Low-Pass
Filter
DAC
Low-Pass
Filter
Open Drain
Power Supply
VOUTL
CAP
VOUTR
ZERO
SCKO
MCKO XTI XTO
VCP PGND VCC AGND VDD DGND
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.
SoundPLUS is a trademark of Texas Instruments.
I2S is a trademark of NXP Semiconductors.
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
www.ti.com
Copyright © 1996-2007, Texas Instruments Incorporated




Burr-Brown Corporation

PCM1723 Datasheet Preview

PCM1723 Datasheet

DIGITAL-TO-ANALOG CONVERTER

No Preview Available !

ELECTROSTATIC
DISCHARGE SENSITIVITY
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 degrada-
tion 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.
ABSOLUTE MAXIMUM RATINGS(1)
Power Supply Voltage ...................................................................... +6.5V
+VCC to +VDD Difference ................................................................... ±0.1V
Input Logic Voltage .................................................. –0.3V to (VDD + 0.3V)
Input Current (except power supply) ............................................... ±10mA
Power Dissipation .......................................................................... 530mW
Operating Temperature Range ......................................... –25°C to +85°C
Storage Temperature ...................................................... –55°C to +125°C
Lead Temperature (soldering, 5s) .................................................. +260°C
Thermal Resistance, θJA ....................................................................................... +70°C/W
NOTE: (1) Stresses above those listed under Absolute Maximum Ratings may
cause permanent damage to the device. Exposure to absolute maximum
conditions for extended periods may affect device reliability.
PACKAGE INFORMATION(1)
PRODUCT
PCM1723E
PACKAGE
24-Pin SSOP
PACKAGE
DESIGNATOR
DB
NOTE: (1) For the most current package and ordering information, see the
Package Option Addendum at the end of this data sheet, or see the TI web
site at www.ti.com
PIN CONFIGURATION
TOP VIEW
XTI 1
SCKO 2
VCP 3
NC 4
MCKO 5
ML 6
MC 7
MD 8
RSTB 9
ZERO 10
VOUTR 11
AGND 12
SSOP
24 XTO
23 PGND
22 DGND
21 VDD
20 RES
19 NC
18 LRCIN
17 DIN
16 BCKIN
15 CAP
14 VOUTL
13 VCC
PIN ASSIGNMENTS
PIN NAME TYPE
1 XTI IN
2 SCKO OUT
3 VCP PWR
4 NC N/A
5 MCKO Out
6(1) ML
IN
7(1) MC
IN
8(1) MD
IN
9(1) RSTB
IN
10 ZERO OUT
11
12
13
14
15
16(2)
17(2)
18(2)
19
20
21
22
23
24
VOUTR
AGND
VCC
VOUTL
CAP
BCKIN
DIN
LRCIN
NC
RES
VDD
DGND
PGND
XTO
OUT
GND
PWR
OUT
IN
IN
IN
N/A
N/A
PWR
GND
GND
Out
FUNCTION
Master Clock Input.
System Clock Out. This output is 256fS or 384fS.
system clock generated by the internal PLL.
PLL Power Supply (+5V).
No connection.
Buffered clock output of crystal oscillator.
Latch for serial control data.
Clock for serial control data.
Data for serial control.
Reset Input. When this pin is low, the digital
filters and modulators are held in reset.
Zero Data Flag. This pin is low when the input
data is continuously zero for more than 65, 535
cycles of BCKIN.
Right Channel Analog Output.
Analog Ground.
Analog Power Supply (+5V).
Left Channel Analog Output.
Common pin for analog output amplifiers.
Bit clock for clocking in the audio data.
Serial audio data input.
Left/Right Word Clock. Frequency is equal to fS.
No connection.
Reserved for factory use, do not connect.
Analog Power Supply (+5V).
Digital Ground.
PLL Ground.
Crystal oscillator output.
NOTES: (1) Schmitt trigger input with internal pull-up resistors.
(2) Schmitt triger input.
2 PCM1723
www.ti.com
SBAS057A


Part Number PCM1723
Description DIGITAL-TO-ANALOG CONVERTER
Maker Burr-Brown Corporation
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PCM1723 Datasheet PDF






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