參數(shù)資料
型號(hào): PCM4222PFBR
英文描述: High-Performance, Two-Channel, 24-Bit, 216kHz Sampling Multi-Bit Delta-Sigma Analog-to-Digital Converter
中文描述: 高性能,雙通道,24位,216kHz的采樣多位Δ-Σ模擬到數(shù)字轉(zhuǎn)換器
文件頁(yè)數(shù): 23/38頁(yè)
文件大?。?/td> 604K
代理商: PCM4222PFBR
www.ti.com
LRCK
BCK
DATA
LRCK
BCK
DATA
LRCK
BCK
LRCK
BCK
LRCK
BCK
LRCK
BCK
LRCK
BCK
LRCK
BCK
LRCK
BCK
LRCK
BCK
DATA
DATA
DATA
DATA
DATA
DATA
DATA
DATA
SUB0
SUB1
SUB0
SUB1
SUB0
SUB1
SUB0
SUB1
SUB0
SUB1
SUB0
SUB1
SUB0
SUB1
SUB0
SUB1
PCM4222
(sub-frame 0)
Slave
PCM4222
(sub-frame 1)
Slave
PCM4222
(sub-frame 2)
Slave
PCM4222
(sub-frame 3)
Slave
PCM4222
(sub-frame 0)
Master
PCM4222
(sub-frame 1)
Slave
PCM4222
(sub-frame 2)
Slave
PCM4222
(sub-frame 3)
Slave
LO
LO
HI
LO
LO
HI
HI
HI
LO
LO
HI
LO
LO
HI
HI
HI
(a) All devices are Slaves.
(b) One device is the Master while all other devices are Slaves.
Normal Mode
LRCK
L
Sub-frame 0 Sub-frame 1
One Frame, 1/f
S
Sub-frame 2 Sub-frame 3
R
L
R
L
R
L
R
L
Sub-frame 0 Sub-frame 1
One Frame, 1/f
S
One Frame, 1/f
S
Sub-frame 0 Sub-frame 1
R
L
R
L
R
L
R
L
One Frame One Frame
1/f
S
1/f
S
1/f
S
1/f
S
One Frame One Frame
R
L
R
L
R
L
R
DATA
LRCK
DATA
LRCK
DATA
Double Speed Mode
Quad Speed Mode
PCM4222
SBAS399A–OCTOBER 2006–REVISED MARCH 2007
Figure 43. TDM Mode Interface Connections (PCM Normal Mode Shown)
Each L or R channel time slot is 32-bits long, with 24-bit data Left-Justified in the time slot. Audio data is MSB first.
Sub-frame assignments for each PCM4222 device are selected by the corresponding SUB0 and SUB1 pin settings.
Figure 44. TDM Data Formats: Slave Mode
23
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