參數(shù)資料
型號(hào): TLV320DAC23IGQE
廠商: TEXAS INSTRUMENTS INC
元件分類: DAC
英文描述: SERIAL INPUT LOADING, 32-BIT DAC, PBGA80
封裝: PLASTIC, MICRO, BGA-80
文件頁(yè)數(shù): 7/39頁(yè)
文件大小: 664K
代理商: TLV320DAC23IGQE
26
2.4.3
Three-Wire Control Interface (SDI)
PARAMETER
MIN
TYP
MAX
UNIT
tw(5)
Clock pulse duration, SCLK
High
20
ns
tw(6)
Clock pulse duration, SCLK
Low
20
ns
tc(3)
Clock period, SCLK
80
ns
tsu(4)
Clock rising edge to CS rising edge, SCLK
60
ns
tsu(5)
Setup time, SDIN to SCLK
20
ns
th(4)
Hold time, SCLK to SDIN
20
ns
tw(7)
Pulse duration, CS
High
20
ns
tw(8)
Pulse duration, CS
Low
20
ns
LSB
tw(8)
tc(3)
tw(6)
tw(5)
tsu(4)
th(4)
tsu(5)
CS
SCLK
DIN
Figure 24. Three-Wire Control Interface Timing Requirements
2.4.4
Two-Wire Control Interface
PARAMETER
MIN
TYP
MAX
UNIT
tw(9)
Clock pulse duration, SCLK
High
1.3
s
tw(10)
Clock pulse duration, SCLK
Low
600
ns
f(sf)
Clock frequency, SCLK
0
400
kHz
th(5)
Hold time (start condition)
600
ns
tsu(6)
Setup time (start condition)
600
ns
th(6)
Data hold time
900
ns
tsu(7)
Data setup time
100
ns
tr
Rise time, SDIN, SCLK
300
ns
tf
Fall time, SDIN, SCLK
300
ns
tsu(8)
Setup time (stop condition)
600
ns
SCLK
DIN
tw(9)
tw(10)
th(5)
th(6)
tsu(7)
tsu(8)
Figure 25. Two-Wire Control Interface Timing Requirements
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