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參數(shù)資料
| 型號： | LC7444 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Dual VCO（Voltage Controlled Oscillator）Circuit(雙電壓控制振蕩器電路) |
| 中文描述： | 雙VCO（壓控振蕩器）電路（雙電壓控制振蕩器電路） |
| 文件頁數(shù)： | 1/3頁 |
| 文件大小： | 42K |
| 代理商： | LC7444 |
CMOS LSI
LC7444
Ordering number : EN4305A
52295TH (OT) No. 4305-1/3
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Dual VCO
Overview
The LC7444 consists of two independent VCO (voltage
controlled oscillator) circuits.
These circuits support VCO operation with only the
addition of external resistors that determine the oscillation
range.
Features
Two independent VCO circuits
The oscillator frequency range can be set with external
resistors.
Good linearity in the voltage - frequency conversion
characteristics
High-impedance oscillator control voltage input
CMOS clock output
Fabricated in a CMOS process for lower power
Oscillator frequency range: 8 to 32 MHz
Operating supply voltage: 5 V ± 10%
Package: DIP14
Package Dimensions
unit: mm
3003A-DIP14
Specifications
Absolute Maximum Ratings
at Ta = 25 ± 2°C, V
SS
1 = V
SS
2 = 0 V, V
DD
= V
DD
1, V
DD
2
Allowable Operating Ranges
at Ta = –10 to +70°C, V
SS
1 = V
SS
2 = 0 V, V
DD
= V
DD
1, V
DD
2
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
V
DD
max
V
IN
max
V
OUT
max
Pd max
–0.3 to +7.0
V
Maximum input voltage
–0.3 to V
DD
+ 0.3
–0.3 to V
DD
+ 0.3
V
Maximum output voltage
V
Allowable power dissipation
300
mW
Operating temperature
Topr
–10 to +70
°C
Storage temperature
Tstg
–55 to +125
°C
Parameter
Symbol
Conditions
min
typ
max
Unit
Supply voltage
V
DD
V
IH
V
IL
Rrng
4.5
5.0
5.5
V
Input high level voltage
ENA1, ENA2
0.7 V
DD
V
Input low level voltage
ENA1, ENA2
0.3 V
DD
V
k
Oscillator range resistors
R1, R2
6.8
13
[LC7444]
SANYO: DIP14
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