LB1823 查看數據表（PDF） - SANYO -> Panasonic
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LB1823 Datasheet PDF : 11 Pages
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LB1823
External Crystal Oscillator Circuit
Pin Functions
External Constants (reference value, VCC = 6.3 V)
Xtal (MHz)
3 to 4
4 to 5
5 to 7
7 to 10
C1(pF)
39
39
39
39
C2(pF)
120
120
82
68
R(Ω)
390
560
820
2200
External Constants (reference value, VCC = 5 V)
Xtal (MHz)
C1(pF)
C2(pF)
R(Ω)
3 to 4
39
180
330
4 to 5
39
150
390
5 to 7
39
100
560
7 to 10
39
68
1200
Note: However, an oscillator element with crystal fundamental frequency fO impedance to 3fO
impedance ratio = 1:5 or greater must be used.
Pin No.
30, 29
28, 27
26, 25
19
21
23
18
20
22
17
16
24
4
9
10
7
6
8
11
12
13
14
5
15
1
2
3
Symbol
IN1+, IN1–
IN2+, IN2–
IN3+, IN3–
UH
VH
WH
UL
VL
WL
VCC
VREG
GND
CR
INTIN
INTOUT
DOUT
POUT
LD
FGIN+
FGIN–
FGOUT
FGSOUT
X’tal
RF
S/S
F/R
BR
Function
Hall input pin
Hall input pin
Hall input pin
Output pin, constant current source output
Output pin, constant current source output
Output pin, constant current source output
Output pin, open collector sink output
Output pin, open collector sink output
Output pin, open collector sink output
Power supply
7 V shunt regulator output
Ground
PWM oscillator frequency setting
Integrator input
Integrator output (speed control pin)
Speed discriminator output. High on overspeed.
PLL output
Lock detector
Low when the motor speed is in the lock range (±6.25%)
FG pulse input (1/2 of the VCC voltage)
FG pulse input
FG amplifier output
FG amplifier output (following the Schmitt circuit)
Crystal oscillator. Connect a crystal oscillator element to this pin.
Output current detection
Start/stop control pin
Low for start, high or open for stop
Forward/reverse control
Low or open for forward, high for reverse
Brake, short brake
Low or open for start, high for brake. The S/S pin must be set to the stop state when releasing the brake.
No. 4263-6/11
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