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參數(shù)資料
| 型號： | MC33689DWB |
| 廠商： | Motorola, Inc. |
| 英文描述： | Single Output LDO, 400mA, Fixed(2.85V), Low Noise, Fast Transient Response 8-MSOP -40 to 85 |
| 中文描述： | 系統(tǒng)基礎(chǔ)芯片收發(fā)器和LIN |
| 文件頁數(shù)： | 18/18頁 |
| 文件大小： | 229K |
| 代理商： | MC33689DWB |
MC33689
9
MC33689
note 1: Vsup from 7V to 18V, bus load R0 and C0 1nF/1k, 6.8nF/660, 10nF/500. Measurement thresholds: 50% of Tx signal to LIN signal
threshold defined in the column “condition”
note 1: Vsup from 7V to 18V, bus load R0 and C0 1nF/1k, 6.8nF/660, 10nF/500. Measurement thresholds: 50% of Tx signal to LIN signal
threshold defined in the column “condition”
note 2: Measured between LIN signal threshold “Lin-vil” or “Lin-vih” and 50% of Rx signal.
note 3: Twake is typically 2 internal clock cycles after LIN rising edge detected. Ref to “LIN bus wake up behavior” figure. In sleep mode the
Vdd rise time is strongly dependant upon the decoupling capacitor at Vdd pin.
Figure 3. Test circuit for timing measurements
Prop delay symmetry: tdom max - trec
min
dt2
-
11
us
LIN physical layer: bus driver timing characteristics for slow slew rate (note 1)
Dominant propagation delay Tx to LIN
tdom min
100
us
Measurement threshold
61.6% Vsup
Dominant propagation delay Tx to LIN
tdom max
100
us
Measurement threshold
25.1% Vsup
Recessive propagation delay Tx to LIN
trec min
100
us
Measurement threshold
38.9% Vsup
Recessive propagation delay Tx to LIN
trec max
100
us
Measurement threshold
77.8% Vsup
Prop delay symmetry: tdom min - trec
max
dt1s
-22
-
us
Prop delay symmetry: tdom max - trec
min
dt2s
-
23
us
LIN physical layer: bus driver fast slew rate
LIN high slew rate (programming mode)
Dv/Dt fast
13
V/us
Fast slew rate
LIN physical layer: receiver characteristics and wake up timings
Receiver dominant propagation delay
TrL
3.5
6
us
LIN low to Rx low. Note 2
Receiver recessive propagation delay
TrH
3.5
6
us
LIN high to Rx high. note 2
Receiver prop delay symmetry
Tr-sym
-2
2
us
TrL - TrH
Bus wake up deglitcher
TpropWL
30
70
90
us
Sleep and stop mode
Bus wake up event reported
Twake
20
us
Note 3
LIN
Gnd
C0
R0
Vsup
R0 and C0: 1k/1nF, 660ohms/6.8nF and 500ohms/10nF
Tx
Rx
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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