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參數(shù)資料
| 型號： | TB1274BFG |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封裝： | 10 X 14 MM, 0.80 MM PITCH, QFP-48 |
| 文件頁數(shù)： | 18/37頁 |
| 文件大?。?/td> | 839K |
| 代理商： | TB1274BFG |
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TB1274BFG
2005-08-18
25
MAXIMUM RATINGS (Ta＝25℃)
ITEM
SYMBOL
RATING
UNIT
Supply voltage
VCC/DDmax
5.5
V
Signal voltage at each input pin
einmax
5
Vp-p
Power consumption
PD (Note1)
1644
mW
Power consumption reduction ratio
1/θja
13.16
mW/℃
Operating temperature
Topr
-20～65
℃
Storage temperature
Tstg
-55～150
℃
(Note1) Put on the circuit board. Refer to the figure below.
1644
1118
0
25
65
150
Power
cons
um
pt
ion
P
D
(
m
W)
Ambient temperature Ta (℃)
13.16mW/℃
Fig. Power consumption reduction against ambient temperature.
(Note2)CAUTION
1.
Since this device is susceptible to surge, handle with care. Especially, pin 39 is most weak to surge.
2.
Confirm that pins connection is correct. Don’t connect plus pins and minus pins to be opposite polarity.
Refer to
Handling Guide to handle ICs properly.
3.
This device is not proof enough against a strong E-M field by CRT which may cause function errors and / or
poor characteristics. Keeping the distance from CRT to the device longer than 20cm, or if cannot, placing
shield metal over the device, is recommended in an application.
4.
APC characteristics is sensitive to external conditions, please care floating capacitor by patterning and
stray capacitor to X’tal.
4.4315
4.4320
4.4325
4.4330
4.4335
4.4340
4.4345
4.4350
2.6
2.8
3
3.2
3.4
3.6
3.8
4
APC terminal voltage [V]
Occi
lla
ti
o
n
fr
eq
uen
cy
[M
H
z]
C1=9pF
C1=10pF
C1=11pF
4.4315
4.4320
4.4325
4.4330
4.4335
4.4340
4.4345
4.4350
2.6
2.8
3
3.2
3.4
3.6
3.8
4
APC terminal voltage [V]
Os
ci
lla
ti
o
n
fr
eq
uen
cy
[M
H
z]
C2=0pF
C2=0.5pF
C2=1pF
Fig. APC characteristics according to stray capacitor
38
C1
16.2MHz X'tal
38
10pF
16.2MHz
X'tal
C2
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