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參數(shù)資料
| 型號： | LMC568 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Low Power Phase-Locked Loop |
| 中文描述： | 低功耗鎖相環(huán) |
| 文件頁數(shù)： | 2/6頁 |
| 文件大?。?/td> | 161K |
| 代理商： | LMC568 |
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Input Voltage, Pin 3
Supply Voltage, Pin 4
Output Voltage, Pin 8
Voltage at All Other Pins
Output Current, Pin 8
Package Dissipation
Operating Temperature Range (T
A
)
Storage Temperature Range
2 V
p–p
10V
13V
V
s
to Gnd
30 mA
500 mW
25C to +125C
55C to +150C
Soldering Information
Dual-In-Line Package
Soldering (10 seconds)
Small Outline Package
Vapor Phase (60 seconds)
Infrared (15 seconds)
See AN-450 “Surface Mounting Methods and their Effect
on Product Reliability” for other methods of soldering
surface mount devices.
Note 1:
“Absolute Maximum Ratings” indicate limits beyond which damage
to the device may occur. Operating Ratings indicate conditions for which the
device is functional, but do not guarantee specific performance limits.
260C
215C
220C
Electrical Characteristics
Test Circuit, T
A
= 25C, V
S
= 5V, RtCt
#
2, Sw. 1 Pos. 0; and no input unless otherwise noted.
Symbol
Parameter
I4
Power Supply Current
RtCt
#
1, Quiescent or Activated
Conditions
Min
Typ
0.35
0.75
1.2
0
40
1
98
103
105
Max
Units
V
S
= 2V
V
S
= 5V
V
S
= 9V
mAdc
1.5
2.4
V3
R3
I8
f
0
Input D.C. Bias
Input Resistance
Output Leakage
Center Frequency F
osc
÷
2
mVdc
k
nAdc
100
RtCt #2, Measure Oscillator
Frequency and Divide by 2
V
S
= 2V
V
S
= 5V
V
S
= 9V
kHz
90
115
f
0
Center Frequency Shift
with Supply
1.0
2.0
%/V
V
in
Input Threshold
Set Input Frequency Equal to f
0
Measured Above, Increase Input
Level until Pin 8 Goes Low.
V
S
= 2V
V
S
= 5V
V
S
= 9V
8
16
26
45
25
42
mVrms
15
V
in
Input Hysteresis
Starting at Input Threshold, Decrease Input Level
until Pin 8 Goes High
Input Level
>
Threshold Choose RL
for Specified I8
1.5
mVrms
V8
Output
″
Sat
″
Voltage
I8 = 2 mA
I8 = 20 mA
V
S
= 2V
0.06
0.7
0.15
Vdc
L.D.B.W. Largest Detection
Bandwidth
Measure F
osc
with Sw. 1 in Pos. 0, 1,
and 2;
30
%
V
S
= 5V
40
55
V
S
= 9V
60
BW
Bandwidth Skew
1
±
5
%
V
out
Recovered Audio
Typical Application Circuit
Input = 100 mVrms, F = 100 kHz
F
mod
= 400 Hz,
±
10 kHz Dev.
V
S
= 2V
V
S
= 5V
V
S
= 9V
170
270
400
mVrms
THD
Total Harmonic
Distortion
Signal to Noise Ratio
Typical Application Circuit as Above, Measure V
out
Distortion.
Typical Application Circuit
Remove Modulation, Measure V
n
(S + N)/N = 20 log (V
out
/V
n
).
RtCt #3, Measure Oscillator Frequency and Divide by
2
0.5
%
65
dB
f
max
Highest Center Freq.
700
kHz
www.national.com
2
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