參數(shù)資料
型號: PCM1870RHFT
英文描述: 16-Bit Low-Power Stereo Audio ADC With Microphone Bias and Microphone Amplifier
中文描述: 16位低功耗立體聲音頻ADC,具有麥克風(fēng)偏置和麥克風(fēng)放大器
文件頁數(shù): 23/49頁
文件大?。?/td> 648K
代理商: PCM1870RHFT
www.ti.com
Timing Diagram
SDA
SCL
t
(BUF)
t
(D-SU)
t
(D-HD)
Start
t
(LOW)
t
(S-HD)
t
(SCL-F)
t
(SCL-R)
t
(HI)
t
(RS-SU)
t
(RS-HD)
t
(SDA-F)
t
(P-SU)
t
(SDA-R)
Stop
t
(SP)
T0050-03
PCM1870
SLAS544–MAY 2007
TIMING CHARACTERISTICS
SYMBOL
f
SCL
SCL clock frequency
t
(BUF)
Bus free time between a STOP and START condition
t
(LOW)
Low period of the SCL clock
t
(HI)
High period of the SCL clock
t
(RS-SU)
Setup time for START condition
t
(S-HD)
Hold time for START condition
t
(D-SU)
Data setup time
t
(D-HD)
Data hold time
t
(SCL-R)
Rise time of SCL signal
t
(SCL-F)
Fall time of SCL signal
t
(SDA-R)
Rise time of SDA signal
t
(SDA-F)
Fall time of SDA signal
t
(P-SU)
Setup time for STOP condition
C
B
Capacitive load for SDA and SCL line
t
(SP)
Pulse duration of spike suppressed
PARAMETER
CONDITIONS
Standard
Standard
Standard
Standard
Standard
Standard
Standard
Standard
Standard
Standard
Standard
Standard
Standard
MIN
MAX
100
UNIT
kHz
μ
s
μ
s
μ
s
μ
s
μ
s
ns
ns
ns
ns
ns
ns
μ
s
pF
ns
4.7
4.7
4
4.7
4
250
0
900
1000
1000
1000
1000
20 + 0.1 C
B
20 + 0.1 C
B
20 + 0.1 C
B
20 + 0.1 C
B
4
400
25
Figure 23. I
2
C Interface Timing
23
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