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STW5094 数据表(PDF) 21 Page - STMicroelectronics

部件名 STW5094
功能描述  18 BIT 8kHz TO 48kHz LOW POWER STEREO AUDIO DAC WITH INTEGRATED POWER AMPLIFIERS AND VOICE CODEC
PDF  37 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STW5094 数据表(HTML) 21 Page - STMicroelectronics

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STw5094
Figure 6. Control Interface (I2C I/F) formats
Figure 7. Control Interface (I2C I/F) Timing
Figure 8. A.C. TESTING INPUT, OUTPUT WAVEFORM
WRITE
SINGLE BYTE
START
DEVICE ADDRESS
REG n ADDRESS
REG n DATA IN
ACK
ACK
ACK
STOP
WRITE
MULTI BYTE
START
DEVICE ADDRESS
REG n ADDRESS
REG n DATA IN
ACK
ACK
ACK
STOP
REG n+m DATA IN
ACK
m+1 data bytes
CURRENT ADDR
START
DEVICE ADDRESS
Current REG DATA OUT
ACK
NO ACK
STOP
READ
SINGLE BYTE
CURRENT ADDR
START
DEVICE ADDRESS
Current REG DATA OUT
ACK
NO ACK
STOP
READ
MULTI BYTE
Curr REG+m DATA OUT
ACK
ACK
ACK
m+1 data bytes
START
DEVICE ADDRESS
REG n ADDRESS
ACK
ACK
START
DEVICE ADDRESS
REG n DATA OUT
111000
11
ACK
NO ACK
STOP
RANDOM ADDR
READ
SINGLE BYTE
RANDOM ADDR
READ
MULTI BYTE
START
DEVICE ADDRESS
REG n ADDRESS
ACK
ACK
START
DEVICE ADDRESS
111000
11
NO ACK
STOP
REG n+m DATA OUT
ACK
ACK
m+1 data bytes
REG n DATA OUT
ACK
11 10 00 11
11 10 00 11
11 10 00 10
11 10 00 10
11 10 00 10
11 10 00 10
(STO)
tSU
(STA)
tSU
(STA)
tHD
(DAT)
tSU
tHIGH
tBUF
(DAT)
tHD
tF
tR
tLOW
(STA)
tHD
P
S
P
Sr
SCL
SDA
P = STOP
S = START
Sr = START repeated
AC Testing: inputs are driven at 0.8VCCIO for a logic "1" and 0.2VCCIO for a logic "0".
Timing measurements are made at 0.7VCCIO for a logic "1" and 0.3VCCIO for a logic "0".
TEST POINTS
0.7VCCIO
0.3VCCIO
0.7VCCIO
0.3VCCIO
0.8VCCIO
0.2VCCIO
INPUT
⁄ OUTPUT



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