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PCM1740E/2K Datasheet

  • PCM1740E/2K

  • Audio Digital-to-Analog Converter

  • 21頁

  • ETC

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廬
PC
M1
PCM1740
740
For most current data sheet and other product
information, visit www.burr-brown.com
Stereo Audio
DIGITAL-TO-ANALOG CONVERTER
with VCXO and PLL
TM
FEATURES
COMPLETE DELTA-SIGMA STEREO DAC
VOLTAGE-CONTROLLED CRYSTAL
OSCILLATOR: 27MHz
鹵
150ppm Output with
0V to 3V Input
PROGRAMMABLE PLL
256f
S
or 384f
S
Audio System Clock Output
DYNAMIC PERFORMANCE:
Dynamic Range: 94dB
SNR: 94dB
THD+N: 89dB
SAMPLING FREQUENCIES:
16kHz, 22.05kHz, 24kHz
32kHz, 44.1kHz, 48kHz
64kHz, 88.2kHz, 96kHz
SERIAL AUDIO INTERFACE:
Standard or I
2
S Data Formats
16-, 20-, or 24-Bit Data
I
2
C-BUS
簍
INTERFACE FOR CONTROL
REGISTERS
(1)
:
Slave Receiver Operation
7-Bit Addressing
Standard Transfer Rate (up to 100kbps)
PROGRAMMABLE CONTROLS:
Digital Attenuation (256 steps)
Soft Mute
Infinite Zero Detect Mute
De-Emphasis (32kHz, 44.1kHz, 48kHz)
DAC Output Mode
SINGLE +5V SUPPLY
SMALL SSOP-24 PACKAGE
NOTE: (1) I
2
C-Bus
簍
is a registered trademark of Philips Semiconductor.
DESCRIPTION
The PCM1740 is a complete stereo audio digital-to-analog
converter with on-chip PLL and VCXO. The PCM1740 is
designed specifically for set-top box applications requiring
high-quality audio playback, a precision tuned 27MHz mas-
ter clock source, and support for multiple audio-sampling
frequencies.
The stereo D/A converter utilizes multi-bit, delta-sigma
architecture, which includes an 8x interpolation filter, third-
order noise shaping, 5-level amplitude quantization, and an
analog low-pass filter. The PCM1740 includes a number of
user-programmable functions, which are accessed via a
standard I
2
C-Bus interface.
APPLICATIONS
SET-TOP BOXES
DIGITAL BROADCAST RECEIVERS
BCK
LRCK
DATA
PCM
Audio
I/F
8x
Oversampling
Digital Filter
and
Sub-Functions
Process
DAC
(L)
DAC
(R)
V
OUT
L
Low-Pass
Filter
and Amp
V
COM
V
OUT
R
ZERO
SCL
SDA
AD1
AD0
XTUN
XT1
27MHz
Crystal
XT2
RST
I
2
C
I/F
and
REGs
Counter N
Counter M
VCXO
Phase
Detector
LPF
VCO
SCKO
(256f
S
/384f
S
)
MCKO
(27MHz)
Reset
Power Supply
V
PP
PGND V
CC
AGND V
DD
DGND
International Airport Industrial Park 樓 Mailing Address: PO Box 11400, Tucson, AZ 85734 樓 Street Address: 6730 S. Tucson Blvd.,Tucson, AZ 85706 樓 Tel: (520) 746-1111
Twx: 910-952-1111 樓 Internet: http://www.burr-brown.com/ 樓 Cable: BBRCORP 樓 Telex: 066-6491 樓 FAX: (520) 889-1510 樓 Immediateroduct Info: (800) 548-6132
P
廬
漏 2000 Burr-Brown Corporation
PDS-1551A
1
Printed in U.S.A. February, 2000--Revised August 2001
PCM1740
SBAS128A

PCM1740E/2K 產(chǎn)品屬性

  • Texas Instruments

  • 音頻數(shù)/模轉(zhuǎn)換器 IC

  • 96 KHz

  • 24 bit

  • Serial (3-Wire)

  • 5 V

  • + 85 C

  • SSOP-24

  • Reel

  • SMD/SMT

  • 2

  • 94 dB

  • 2000

  • 30 mA

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