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型号： ADAU1445YSVZ-3A-RL
厂商： Analog Devices Inc
文件页数： 19/92页
文件大小： 0K
描述： IC SIGMADSP 175MHZ 100TQFP
标准包装： 1,000
系列： SigmaDSP®
类型： 音频处理器
应用： 车载音频
安装类型： 表面贴装
封装/外壳： 100-TQFP 裸露焊盘
供应商设备封装： 100-TQFP-EP（14x14）
包装： 带卷 (TR)
ADAU1445/ADAU1446
Rev. A | Page 26 of 92
SCL
SDA
(CONTINUED)
SCL
(CONTINUED)
SDA
(CONTINUED)
SCL
(CONTINUED)
START BY
MASTER
FRAME 2
SUBADDRESS BYTE 1
FRAME 3
SUBADDRESS BYTE 2
FRAME 4
CHIP ADDRESS BYTE
FRAME 1
CHIP ADDRESS BYTE
FRAME 6
READ DATA BYTE 2
FRAME 5
READ DATA BYTE 1
STOP BY
MASTER
ACK BY
MASTER
ACK BY
MASTER
REPEATED
START BY
MASTER
R/W
0
SDA
11
1
ADR
SEL
00
R/W
01
1
ADR
SEL
00
07
69
6-
0
14
ACK BY
ADAU1445/ADAU1446
ACK BY
ADAU1445/ADAU1446
ACK BY
ADAU1445/ADAU1446
ACK BY
ADAU1445/ADAU1446
Figure 14. I2C Read Clocking
S
AS
SUBADDRESS,
LOW
AS
...
AS
P
CHIP ADDRESS,
R/W = 0
DATA
BYTE 1
DATA
BYTE 2
DATA
BYTE N
SUBADDRESS,
HIGH
S = START BIT, P = STOP BIT, AM = ACKNOWLEDGE BY MASTER, AS = ACKNOWLEDGE BY SLAVE.
SHOWS A ONE-WORD WRITE, WHERE EACH WORD HAS N BYTES.
07
696
-015
Figure 15. Single-Word I2C Write Sequence
S
AS
ASAS
AS
ASAS
AS
...
P
CHIP
ADDRESS,
R/W = 0
SUBADDRESS,
HIGH
SUBADDRESS,
LOW
DATA-WORD 1,
BYTE 1
DATA-WORD 1,
BYTE 2
DATA-WORD 2,
BYTE 1
DATA-WORD 2,
BYTE 2
DATA-WORD N,
BYTE 1
DATA-WORD N,
BYTE 2
S = START BIT, P = STOP BIT, AM = ACKNOWLEDGE BY MASTER, AS = ACKNOWLEDGE BY SLAVE.
SHOWS AN N-WORD WRITE, WHERE EACH WORD HAS TWO BYTES. (OTHER WORD LENGTHS ARE POSSIBLE, RANGING FROM ONE TO FIVE BYTES.)
0
76
96
-0
16
Figure 16. Burst Mode I2C Write Sequence
S
AM
AS
AM
AS
S
AS
...
P
CHIP ADDRESS,
R/W = 0
CHIP ADDRESS,
R/W = 1
DATA
BYTE N
DATA
BYTE 2
DATA
BYTE 1
SUBADDRESS,
HIGH
SUBADDRESS,
LOW
S = START BIT, P = STOP BIT, AM = ACKNOWLEDGE BY MASTER, AS = ACKNOWLEDGE BY SLAVE.
SHOWS A ONE-WORD WRITE, WHERE EACH WORD HAS N BYTES.
0
76
96
-0
17
Figure 17. Single-Word I2C Read Sequence
S
SAS
AS
AM
...
P
CHIP
ADDRESS,
R/W = 0
SUBADDRESS,
HIGH
SUBADDRESS,
LOW
DATA-WORD 1,
BYTE 1
DATA-WORD 1,
BYTE 2
DATA-WORD N,
BYTE 1
DATA-WORD N,
BYTE 2
CHIP
ADDRESS,
R/W = 1
S = START BIT, P = STOP BIT, AM = ACKNOWLEDGE BY MASTER, AS = ACKNOWLEDGE BY SLAVE.
SHOWS AN N-WORD WRITE, WHERE EACH WORD HAS TWO BYTES. (OTHER WORD LENGTHS ARE POSSIBLE, RANGING FROM ONE TO FIVE BYTES.)
07
69
6-
0
18
Figure 18. Burst Mode I2C Read Sequence
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