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UC3635 の電気的特性と機能

UC3635のメーカーはUnitrodeです、この部品の機能は「Phase Locked Frequency Controller」です。


製品の詳細 ( Datasheet PDF )

部品番号 UC3635
部品説明 Phase Locked Frequency Controller
メーカ Unitrode
ロゴ Unitrode ロゴ 




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UC3635 Datasheet, UC3635 PDF,ピン配置, 機能
Phase Locked Frequency Controller
UC1635
UC2635
UC3635
FEATURES
DESCRIPTION
Precision Phase Locked Frequency
Control System
The UC1635 family of integrated circuits was designed for use in preci-
sion speed control of DC motors. An extension to the UC1633 line of
Crystal Oscillator
Programmable Reference Frequency
Dividers
phase locked controllers, these devices provide access to both of the
digital phase detector’s inputs, and include a reference frequency di-
vider output pin. With this added flexibility, this family of controllers can
be used to obtain phase synchronization of multiple motors.
Phase Detector with Absolute Frequency
Steering
A reference frequency can be generated using the device’s crystal oscil-
lator and programmable dividers. The oscillator operates using a broad
Separate Divider Outputs and Phase
Detector Input Pins
range of crystals, or, can function as a buffer stage to an external fre-
quency source.
Double Edge Option on the Frequency
Feedback Sensing Amplifier
Two High Current Op Amps
The phase detector responds proportionally to the phase error between
the detector’s minus input pin and the sense amplifier output. This
phase detector includes absolute frequency steering to provide maxi-
5V Reference Output
mum drive signals when any frequency error exists. This feature allows
optimum start-up and lock times to be realized.
Two op-amps are included that can be configured to provide necessary
loop filtering. The outputs of these op-amps will source or sink in excess
of 16mA, so they can provide a low impedance control signal to driving
circuits.
BLOCK DIAGRAM
Additional features include a double edge option on the sense amplifier
that can be used to double the loop reference frequency for increased
loop bandwidths. A 5V reference output can be used to accurately set
DC operating levels.
7/97
UDG-92019

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UC3635 pdf, ピン配列
UC1635
UC2635
UC3635
ELECTRICAL CHARACTERISTICS: Unless otherwise stated, specifications hold for TA = 0°C to +70°C for the UC3635,
-25°C to +85°C for the UC2635 and -55°C to +125°C for the UC1635, +Vin = 12V. TA = TJ.
PARAMETER
TEST CONDITIONS
Oscillator
DC Voltage Gain
Oscillator Input to Oscillator Output
Input DC Level (VIB)
Oscillator Input Pin Open, TJ = 25°C
Input Impedance (Note 2)
VIN = VIB ±0.5V, TJ = 25°C
Output DC Level
Oscillator Input Pin Open, TJ = 25°C
Maximum Operating Frequency
Dividers
Maximum Input Frequency
Input = 1Vpp at Oscillator Input
Div 2/4 Input Current
Input = 5V (Div. by 2)
Input = 0V (Div. by 4)
Div 2/4 Threshold
Divider Output
High Level (w/6.8k Load to GND)
Low Level (Open Collector Leakage)
Sense Amplifier
Threshold Voltage
Percent of VREF
Threshold Hysteresis
Input Bias Current
Input = 1.5V
Double Edge Disable Input
Input Current
Input = 5V (Disabled)
Input = 0V (Enabled)
Threshold Voltage
Phase Detector
-Input Threshold
Detector Responds to Falling Edge
-Input Current
Input = 2.2V
High Output Level
Positive Phase/Freq. Error, Volts Below VREF
Low Output Level
Negative Phase/Freq. Error
Mid Output Level
Zero Phase/Freq. Error, Percent of VREF
High Level Maximum Source
Current
VOUT = 4.3V
Low Level Maximum Sink Current VOUT 0.7V
Mid Level Output Impedance
(Note 3)
IOUT = -200 to +200µA, TJ = 25°C
Loop Amplifier
Non-Inv Reference Voltage
Percent of VREF
Input Bias Current
Input = 2.5V
AVOL
PSRR
+VIN = 8 to 15V
Short Circuit Current
Source, VOUT = 0V
Sink, VOUT = 5V
MIN TYP MAX UNITS
12 16 20 dB
1.15 1.3 1.45 V
1.3 1.6 1.9 k
1.2 1.4 1.6
V
10 MHz
10 MHz
150 500 µA
-5.0 0.0 5.0 µA
0.5 1.6 2.2
V
4.0 4.5
V
10 µA
27 30 33 %
10 mV
-1.0 -0.2
µA
150 500
-5.0 0.0 5.0
0.5 1.6 2.2
µA
µA
V
0.5 1.6 2.2
V
100 250 µA
0.2 0.5
V
0.2 0.5
V
47 50 53 %
2.0 8.0
mA
2.0 5.0
mA
4.5 6.0 7.5 k
47 50 53 %
-0.8 -0.2
µA
60 75
dB
70 100
dB
16 35
mA
16 30
mA
Note 3: These impedance levels will vary with TJ at about 1700ppm/ °C.
3


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共有リンク

Link :


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