DF1706_14 Datasheet, PDF (1/21 Pages) Texas Instruments – Stereo, 24-Bit, 192kHz 8x Oversampling Digital Interpolation Filter

49%
FPO
DF1706
DF1706
www.ti.com
Stereo, 24-Bit, 192kHz
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 192kHz
DESCRIPTION
The DF1706 is a high performance, stereo, 8X
oversampling digital interpolation filter designed for
high-end consumer and professional audio applica-
tions. The DF1706 supports 24-bit, 192kHz operation
and features user-programmable functions, including
q SYSTEM CLOCK: 128f_S, 192f_S, 256f_S,
384f_S, 512f_S, 768f_S
q ON-CHIP CRYSTAL OSCILLATOR
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 +3.3V SINGLE-SUPPLY OPERATION
q SMALL SSOP-28 PACKAGE
selectable filter response, de-emphasis, attenuation,
and input/output data formats.
The DF1706 is the ideal companion for Texas
Instruments’s PCM1704 24-bit audio Digital-to-Ana-
log (D/A) converter. This combination allows for the
construction of very high-performance audio systems
and components.
BCKIN
LRCIN
DIN
x4
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
BCKO
WCKO
DOL
DOR
SCK
Crystal/OSC
Power Supply
(SF0) (SF1) (SRO)
XTI XTO CLKO
V_DD DGND
Copyright © 2001, Texas Instruments Incorporated
SBAS182
Printed in U.S.A. January, 2001