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參數(shù)資料
型號: MC145193F
廠商: MOTOROLA INC
元件分類: XO, clock
英文描述: 1.1 GHZ PLL FREQUENCY SYNTHESIZER
中文描述: PLL FREQUENCY SYNTHESIZER, 1100 MHz, PDSO20
封裝: PLASTIC, SO-20
文件頁數(shù): 20/24頁
文件大?。?/td> 240K
代理商: MC145193F
MC145193
20
MOTOROLA WIRELESS SEMICONDUCTOR
SOLUTIONS – RF AND IF DEVICE DATA
Threshold
Detector
Low–pass
Filter
NC
1000 pF
UHF
VCO
Integrator
MCU
+3 V
General–purpose
Digital Output
+3 V
REFout
REFin
VCC
VDD
Gnd
LD
φ
R
φ
V
VPD
PDout
Rx
Test 1
fin
fin
Test 2
Output B
Output A
ENB
CLK
Din
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Q1
NC
+ 3 V
UHF Output
Buffer
Note 2
NOTES:
1
When used, the
φ
R and
φ
V outputs are fed to an external combiner/loop filter. See the Phase–
Locked Loop — Low–Pass Filter Design (Page 19) for additional information.
Transistor Q1 is required only if the standby feature is needed. Q1 permits the bipolar section
of the device to be shut down via use of the general–purpose digital pin, Output B. If the standby
feature is not needed, tie Pin 12 directly to the power supply.
For optimum performance, bypass the VCC, VDD, and VPD pins to Gnd with low–inductance ca-
pacitors.
The R counter is programmed for a divide value = REFin/fR. Typically, fR is the tuning resolution
required for the VCO. Also, the VCO frequency divided by fR = NT = N x 64 + A; this determines
the values (N, A) that must be programmed into the N and A counters, respectively.
2
3
4
Figure 21. Example Application
CMOS
MCU
Output A
(Data Out)
ENB
CLK
Din
Device #1
(MC145193 or MC145202–1)
Output A
(Data Out)
ENB
CLK
Din
Device #2
(MC145193 or MC145202–1)
Optional
NOTE: See related Figures 23, 24, and 25.
Figure 22. Cascading Two Devices
相關(guān)PDF資料
PDF描述
MC14521B 24-Stage Frequency Divider
MC14521 24-Stage Frequency Divider
MC14521BCP Non-inverting High-Speed MOSFET Driver 5-SOT-23 -40 to 125
MC14521BD 24-Stage Frequency Divider
MC14521BDR2 24-Stage Frequency Divider
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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MC14519BD 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC14519BF 制造商:Panasonic Industrial Company 功能描述:IC
MC1451CCP 制造商:PMD 功能描述:
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