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부품번호 | CE2826 기능 |
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기능 | 6-Channel Audio Codec | ||
제조업체 | CEI Microelectronics | ||
로고 | |||
전체 20 페이지수
Microelectronics
CE2826
6-Channel Audio Codec, 24-bit, 192kHz
DESCRIPTION
The CE2826 is a mixed signal CMOS monolithic audio
Codec. It contains six multi-bit sigma delta DAC and a
stereo ADC, Ideal for DVD and audio processing
application.
The DAC consists of 128-time interpolation filters, 3rd
order multi-bit Σ∆ modulators, switch capacitors and
analog reconstruction filters. The Σ∆ converter offers
superior differential linearity, with minimum distortion due
to component mis-match. high tolerance to clock jitter.
Additionally it includes separated digital volume control
for each channel.
FEATURES
• Six Channel Audio DAC.
- 104 dB SNR (A Weighted).
- -91 dB THD + N Ratio (A Weighted).
- 32K - 192 KHz. Sampling Rates.
- On -chip Reconstruction Filters.
- Independent Digital Volume Control.
• Stereo Audio ADC.
- Up to 96K sampling Rate.
• I2S, Left and Right Justified Digital I/F Formats.
• 2-wire Serial Control Interface.
• 3.3 Volt Power Supply.
The ADC utilizes cascaded Σ∆ architecture. The internal
digital filter has a 20K bandwidth. It support sampling
frequency up to 96K Hz.
Applications
• Digital Surround Sound For Home Theatre
• DVD
• Car Audio.
XCK
LRCK
BCK
77
78
DIN1
DIN2
DIN3
80
80
77
DOUT
77
Clock Rate
Detect'n
DIGITAL
AUDIO
I/F
SDA SCL
Control Interface
CE2826
Σ∆
Mod.
D/A
D/A
INTERPOLATION
FILTER
Σ∆
Mod.
D/A
D/A
Σ∆
Mod.
D/A
D/A
HIGH PASS
FILTER
DECIMATION
FILTER
A/D
AR1
AL1
AR2
AL2
AR3
AL3
AINR
AINL
CEI Microelectronics Co. Ltd.
1-20
February 3, 2005
PIN ASSIGNMENT
CE2826
DVDD
XCK
BCK
LRCK
DIN1
DIN2
DIN3
DOUT
DGND
SDA
SCL
AVDD
AGND
VCM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28 DAVH
27 DAVL
26 AR1
25 AL1
24 AR2
23 AL2
22 AR3
21 AL3
20 AVDD
19 AGND
18 AINR
17 AINL
16 ADVH
15 ADVL
PIN DESCRIPTION
Pin Name
DIGITAL
DVDD
XCK
BCK
LRCk
DIN1
DIN2
DIN3
DOUT
DGND
SDA
SCL
Pin # Type
Description
1 +3.3V Digital power supply, 3.3 Volt.
2 I External Master Clock Input.
3 I Audio Serial Data Clock Input.
4 I Left/Right channel clock pin. Please refer to Figure 1, Input data format for its definition
5 I Channel 1 or TDM serial audio data input.
6 I Channel 2 serial audio data input.
7 I Channel 3 serial audio data input.
8 O Serial ADC output
9 GND Digital ground
10 I/O Serial command port data line.
11 I Serial command port clock line.
4-20 February 3, 2005
4페이지 Figure 1. Audio Serial Input Data Format
CE2826
LRCK
BCK
DIN[1:3]
LRCK
BCK
MSB
DIN[1:3]
left Channel
1/fs
right channel
MSB LSB MSB
n
210
n
Right Justified Input Format
LSB
210
left Channel
right channel
LSB
321
MSB
Left Justified Input Format
LSB
321
LRCK
BCK
DIN[1:3]
left Channel
right channel
MSB LSB MSB LSB
321
321
I2S Input Format
LRCK
BCK
DIN[1]
MSB LSB MSB
LSB
n 321n 321
Channel 0
Channel 1
MSB LSB
n 21
Last Channel
TDM Input Format
data = 0
7-20 February 3, 2005
7페이지 | |||
구 성 | 총 20 페이지수 | ||
다운로드 | [ CE2826.PDF 데이터시트 ] |
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부품번호 | 상세설명 및 기능 | 제조사 |
CE2826 | 6-Channel Audio Codec | CEI Microelectronics |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |