參數(shù)資料
型號(hào): VPX3214C
廠商: Electronic Theatre Controls, Inc.
英文描述: Video Pixel Decoders
中文描述: 視頻解碼器像素
文件頁數(shù): 60/80頁
文件大?。?/td> 752K
代理商: VPX3214C
PRELIMINARY DATA SHEET
VPX 3220 A, VPX 3216 B, VPX 3214 C
MICRONAS INTERMETALL
60
6.6.4. Characteristics, Reset
at T
A
= 0 to 65
°
C, V
SUP
= 4.75 to 5.25 V, f = 20.25 MHz for min./max. values
at T
C
= 60
°
C, V
SUP
= 5 V, f = 20.25 MHz for typical values
Symbol
Parameter
Min.
Typ.
Max.
Unit
Test Conditions
t
RES EXT
External Reset Hold Time
50
ns
t
RES INT
Internal Reset Hold Time
3.2
μ
s
xtal osc. is working
t
RES INT2
Internal Register Setup after Reset (I
2
C Ini-
tialization)
200
μ
s
6.6.5. Input Characteristics of RES and OE
Symbol
Parameter
Min.
Typ.
Max.
Unit
Test Conditions
V
IL
Input Voltage LOW
–0.5
0.8
V
V
IH
Input Voltage HIGH
2.0
6
V
V
TRHL
Trigger Level at Transition High to Low
1.2
V
V
TRLH
Trigger Level at Transition Low to High
1.6
V
6.6.6. Recommended Crystal Characteristics
Symbol
Parameter
Min.
Typ.
Max.
Unit
Test Conditions
T
A
Operating Ambient Temperature
0
65
°
C
f
P
Resonance Frequency
20.250
MHz
C
L
= 13 pF,
T
A
= 25
°
C
f
P
/f
P
Accuracy of Adjustment
±
20
ppm
T
A
= 25
°
C
f
P
/f
P
Frequency Temperature Drift
±
30
ppm
over operating temperature
range with respect to fre-
quency at 25
°
C
C
0
Shunt Capacitance
3
7
pF
C
1
Motional Capacitance
18
fF
R
r
Series Resistance
30
6.6.7. XTAL Input Characteristics
Symbol
Parameter
Min.
Typ.
Max.
Unit
Test Conditions
V
I
Clock Input Voltage, XTAL1
1.3
V
PP
capacitive coupling of
XTAL1, XTAL2 open
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