參數(shù)資料
型號(hào): TPA0172PWPR
廠商: TEXAS INSTRUMENTS INC
元件分類: 音頻控制
英文描述: 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO24
封裝: GREEN, PLASTIC, HTSSOP-24
文件頁(yè)數(shù): 19/36頁(yè)
文件大小: 885K
代理商: TPA0172PWPR
TPA0172
2W STEREO AUDIO POWER AMPLIFIER
WITH I2C BUS
SLOS327C AUGUST 2000 REVISED MAY 2001
26
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
A6
A0
ACK
Acknowledge
(From
Receiver)
I2C Device Address and
Read/Write Bit
R/W
D7
D0
ACK
Stop
Condition
Acknowledge
(From
Transmitter)
Last Data Byte
SDA
D7
D6
D1
D0 ACK
First Data
Byte
Start
Condition
Not
Acknowledge
(Transmitter)
Other
Data Bytes
Figure 31. Multiple Byte Read Transfer
timing characteristics for I2C interface
PARAMETER
STANDARD
MODE
FAST MODE
UNITS
PARAMETER
MIN
MAX
MIN
MAX
UNITS
fSCL
Clock frequency, SCL
0
100
0
400
kHz
tw(H)
Pulse duration, SCL high
4
0.6
s
tw(L)
Pulse duration, SCL low
4.7
1.3
s
tr
Rise time, SCL and SDA
1000
300
ns
tf
Fall time, SCL and SDA
300
ns
tsu(1)
Setup time, SDA to SCL
250
100
ns
th(1)
Hold time, SCL to SDA
0
ns
t(buf)
Bus free time between stop and start condition
4.7
1.3
s
tsu(2)
Setup time, SCL to start condition
4.7
0.6
s
th(2)
Hold time, start condition to SCL
4
0.6
s
tsu(3)
Setup time, SCL to stop condition
4
0.6
s
tw(H)
tw(L)
tr
tf
tsu(1)
th(1)
SCL
SDA
Figure 32. SCL and SDA Timing
tsu(2)
th(2)
tsu(3)
t(buf)
SCL
SDA
Start Condition
Stop Condition
Figure 33. Start and Stop Conditions
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