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参数资料
| 型号： | MM5369 |
| 厂商： | National Semiconductor Corporation |
| 英文描述： | MM5369 17 Stage Oscillator/Divider |
| 中文描述： | MM5369 17期振荡器/除法 |
| 文件页数： | 2/6页 |
| 文件大小： | 110K |
| 代理商： | MM5369 |
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
Voltage at Any Pin
b
0.3V to V
DD
a
0.3V
0
§
C to
a
70
§
C
b
65
§
C to
a
150
§
C
Operating Temperature
Storage Temperature
Package Dissipation
500 mW
Maximum V
CC
Voltage
Operating V
CC
Range
Lead Temperature (Soldering, 10 seconds)
16V
3V to 15V
300
§
C
Electrical Characteristics
T
A
within operating temperature range, V
SS
e
GND, 3V
s
V
DD
s
15V unless otherwise specified.
Parameter
Conditions
Min
Typ
Max
Units
Quiescent Current Drain
V
DD
e
15V
10
m
A
Operating Current Drain
V
DD
e
10V, f
IN
e
4.19 MHz
1.2
2.5
mA
Frequency of Oscillation
V
DD
e
10V
V
DD
e
6V
DC
DC
4.5
2
MHz
MHz
Output Current Levels
V
DD
e
10V
V
O
e
5V
Logical ‘‘1’’ Source
Logical ‘‘0’’ Sink
500
500
m
A
m
A
Output Voltage Levels
V
DD
e
10V
I
O
e
10
m
A
Logical ‘‘1’’
Logical ‘‘0’’
9.0
V
V
1.0
Note:
For 3.58 MHz operation, V
DD
must be
t
10V.
Functional Description
A connection diagram for the MM5369 is shown inFigure 1
and a block diagram is shown in Figure 2.
TIME BASE
A precision time base is provided by the interconnection of
a 3,579,545 Hz quartz crystal and the RC network shown in
Figure 3 together with the CMOS inverter/amplifier provided
between the OSC IN and the OSC OUT terminals. Resistor
R1 is necessary to bias the inverter for class A amplifier
operation. Capacitors C1 and C2 in series provide the paral-
lel load capacitance required for precise tuning of the quartz
crystal.
The network shown provides
l
100 ppm tuning range when
used with standard crystals trimmed for C
L
e
12 pF. Tuning
to better than
g
2 ppm is easily obtainable.
DIVIDER
A pulse is genertaed when divider stages 1 through 4, 16
and 17 are in the correct state. By mask options, this pulse
is used to set or reset individual stages of the counter. Fig-
ure 4 shows the relationship between the duty cycle and the
programmed modulus.
OUTPUTS
The Tuner Output is a buffered output at the crystal oscilla-
tor frequency. This output is provided so that the crystal
frequency can be obtained without disturbing the crystal os-
cillator. The Divide Output is the input frequency divided by
the mask programmed number. Both outputs are push-pull
outputs.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MM5369AA/M | 制造商:NSC 制造商全称:National Semiconductor 功能描述:MM5369 17 Stage Oscillator/Divider |
| MM5369AA/N | 制造商:NSC 制造商全称:National Semiconductor 功能描述:MM5369 17 Stage Oscillator/Divider |
| MM5369AAN | 制造商:Texas Instruments 功能描述: |
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| MM5387AA | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Digital Alarm Clocks |
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