DF1704E Datasheet, PDF (1/20 Pages) Texas Instruments – Stereo, 24-Bit, 96kHz 8X Oversampling Digital Interpolation Filter

DF1704
49%
FPO
DF1704
SBAS099A – MARCH 2001
TM _{Stereo, 24-Bit, 96kHz}
8X Oversampling Digital Interpolation Filter
FEATURES
q COMPANION DIGITAL FILTER FOR THE PCM1704
24-BIT AUDIO DAC
q HIGH PERFORMANCE FILTER:
Stopband Attenuation: –115dB
Passband Ripple: ±0.00005dB
q AUDIO INTERFACE:
Input Data Formats: Standard, Left-
Justified, and I²S
Input Word Length: 16, 20, or 24 Bits
Output Word Length: 16, 18, 20, or 24 Bits
Sampling Frequency: 32kHz to 96kHz
q PROGRAMMABLE FUNCTIONS:
Hardware or Software Control Modes
Sharp or Slow Roll-Off Filter Response
Soft Mute
Digital De-Emphasis
Independent Left/Right Digital Attenuation
q SYSTEM CLOCK: 256f_S, 384f_S, 512f_S, 768f_S
q ON-CHIP CRYSTAL OSCILLATOR
q +5V SINGLE-SUPPLY OPERATION
q SMALL SSOP-28 PACKAGE
DESCRIPTION
The DF1704 is a high-performance, stereo, 8X oversampling
digital interpolation filter designed for high-end consumer
and professional audio applications. The DF1704 supports
24-bit, 96kHz operation and features user-programmable
functions, including selectable filter response, de-emphasis,
attenuation, and input/output data formats.
The DF1704 is the ideal companion for Texas Instruments’
PCM1704 24-bit audio digital-to-analog converter. This
combination allows for construction of very high-perfor-
mance audio systems and components.
BCKIN
LRCIN
DIN
MD/CKO
MC/LRIP
ML/RESV
MODE
(MUTE)
RST
(DEM)
Serial
Input
I/F
Mode
Control
I/F
8X Oversampling
Digital Filter with
Function
Controller
Output I/F
SCK
Crystal/OSC
Power Supply
BCKO
WCKO
DOL
DOR
(SF0) (SF1) (SRO)
XTI XTO CLKO
V_DD
V_SS
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.
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.
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Copyright © 1998, Texas Instruments Incorporated