CE2746 Datasheet, PDF (1/18 Pages) List of Unclassifed Manufacturers – 6-Channel Audio DAC, 24-bit, 192kHz

Microelectronics
CE2746
6-Channel Audio DAC, 24-bit, 192kHz
DESCRIPTION
The CE2746 is a mixed signal CMOS monolithic audio
digital to analog converter. It contains six 1-bit sigma delta
DAC. The system consists of 128-time interpolation filters,
4^th order Σ∆ modulators, switch capacitors and analog
reconstruction filters. The one bit Σ∆ converter offers
superior differential linearity, with no distortion due to
component mis-match. high tolerance to clock jitter.
The CE2746 support data conversion from 32K to
192KHz. The analog section operates at 5 volt while the
digital section at 3.3 volt. This dual voltage system reduces
not only the power consumption but also the noise caused
by the digital circuit switching. The CE2746 is ideal for
DVD player, AV receiver and set-top box application.
The CE2746 support 24, 20, 18 and 16-bit input data. It
also support multiple sampling frequency data. Each DAC
has its own individual volume control.
FEATURES
• Six Channel Audio DAC.
- 104 dB SNR (A Weighted).
- -94 dB THD + N Ratio (A Weighted).
- 8K - 192 KHz. Sampling Rates.
- Independent Digital Volume Control.
- I²S, Left and Right Justified Digital Input Formats.
- On -chip Reconstruction Filters.
• 3.3 -volt Digital Interface.
• 2-wire Serial Control Interface.
• 3.3 Volt Digital. 5 Volt Analog Power Supply.
Applications
• Digital Surround Sound For Home Theatre
• DVD
• Car Audio.
XCK
PLL
DIN1
80
DIN2
80
DIN3
77
LRCK
77
BCK
78
DIGITAL
AUDIO
INPUT
Format
Detect'n
CEI Microelectronics Co. Ltd.
CE2746
Σ∆
D/A
AR1
Mod.
D/A
AL1
INTERPOLATION
Σ∆
D/A
AR2
FILTER
Mod.
D/A
AL2
Σ∆
D/A
AR3
Mod.
D/A
AL3
Control Interface
SDA
SCL
15
RST
15
VCM
1-18
March 24, 2004