參數(shù)資料
型號(hào)： MC145192
廠商： Motorola, Inc.
英文描述： Low-Voltage 1.1 GHz PLL Frequency Synthesizer
中文描述： 低電壓1.1 GHz PLL頻率合成器
文件頁(yè)數(shù)： 19/24頁(yè)
文件大?。?/td> 348K
代理商： MC145192
MC145192
MOTOROLA
19
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
ENABLE
CLOCK
DATA IN
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 for additional information.
2. 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.
3. For optimum performance, bypass the VCC, VDD, and VPD pins to GND with low–inductance capacitors.
4. 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.
Figure 23. Example Application
CMOS
MCU
OUTPUT A
(DATA OUT)
ENABLE
CLOCK
DATA IN
DEVICE #1
OUTPUT A
(DATA OUT)
ENABLE
CLOCK
DATA IN
DEVICE #2
OPTIONAL
NOTE: See related Figures 25, 26, and 27.
Figure 24. Cascading Two Devices
相關(guān)PDF資料
PDF描述
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MC145192F Low-Voltage 1.1 GHz PLL Frequency Synthesizer
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC14519BCL 制造商:Motorola Inc 功能描述: 制造商:Motorola Inc 功能描述:LOGIC MUX, QUAD, 2-INPUT, CMOS, 16 Pin, Ceramic, DIP
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:
MC14520B 制造商:Motorola Inc 功能描述: 制造商:ON Semiconductor 功能描述:
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