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参数资料
| 型号： | LC72146V |
| 元件分类： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 40 MHz, PDSO24 |
| 封装： | SSOP-24 |
| 文件页数： | 17/22页 |
| 文件大小： | 157K |
| 代理商： | LC72146V |
Continued from preceding page.
Note: 1. Period measurement
2. Recommended crystal oscillator CI values:
CI
≤ 120 (For a 4.5 MHz crystal)
CI
≤ 70 (For a 7.2 MHz crystal)
3. See the description of the structure of the programmable divider.
4. With the CTC bit in the serial data set to 0
5. With the CTC bit in the serial data set to 1
6. See the description of the serial data timing.
Electrical Characteristics at Ta = –40 to +85°C, VSS = 0 V
No. 4922-4/22
LC72146, 72146M, 72146V
Parameter
Symbol
Conditions
min
typ
max
Unit
Clock low-level time
tCL
CL*5
0.45
s
Clock high-level time
tCH
CL*5
0.45
s
CE wait time
tEL
CE, CL*5
0.45
s
CE setup time
tES
CL, CE*5
0.45
s
CE hold time
tEH
CE, CL*5
0.45
s
Chip enable to data latch time
tLC
*5
0.45
s
Data output time
tDC
DO, CL; Depends on pull-up resistor
0.2
s
Parameter
Symbol
Conditions
min
typ
max
Unit
Rf1
XIN
1.0
M
Rf2
FMIN
500
k
Internal feedback resistance
Rf3
AMIN
500
k
Rf4
HCTR/I-6
250
k
Rf5
LCTR/I-7
250
k
Sub charge pump
R1S
AIN
100
internal resistance
Hysteresis
VHIS
CE, CL, DI, LCTR/I-7
0.1 VDD
V
IO = 0.5 mA
VDD – 0.5
V
Output high-level voltage
VOH1
PD0, PD1, I/O-4, I/O-5, O-6
IO = 1 mA
VDD – 1.0
V
IO = 2 mA
VDD – 2.0
V
VOH2
AIN: IO = 1 mA
VDD – 0.6
VDD – 0.3
V
IO = 0.5 mA
0.5
V
VOL1
PD0, PD1, I/O-4,
IO = 1 mA
1.0
V
I/O-5, O-6, O-7
IO = 2 mA
2.0
V
VOL2
AIN: IO = 1 mA
0.3
0.6
V
Output low-level voltage
IO = 1 mA
0.2
V
VOL3
I/O-1 to I/O-3
IO = 2.5 mA
0.5
V
IO = 5 mA
1.0
V
IO = 9 mA
1.8
V
VOL4
DO; IO = 5 mA
1.0
V
VOL5
AOUT; IO = 1 mA, AIN = 1.3 V
0.5
V
IIH1
CE, CL, DI; VI = 6.5 V
5.0
A
IIH2
I/O-1 to I/O-3; VI = 13 V
5.0
A
Input high-level current
IIH3
I/O-4, I/O-5, HCTR/I-6, LCTR/I-7; VI = VDD
5.0
A
IIH4
XIN; VI = VDD
2.0
11
A
IIH5
FMIN, AMIN; VI = VDD
4.0
22
A
IIH6
HCTR/I-6, LCTR/I-7; VI = VDD
8.0
44
A
IIL1
CE, CL, DI; VI = 0 V
5.0
A
IIL2
I/O-1 to I/O5; VI = 0 V
5.0
A
Input low-level current
IIL3
HCTR/I-6, LCTR/I-7; VI = 0 V
5.0
A
IIL4
XIN; VI = 0 V
2.0
11
A
IIL5
FMIN, AMIN; VI = 0 V
4.0
22
A
IIL6
HCTR/I-6, LCTR/I-7; VI = 0 V
8.0
44
A
Continued on next page.
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