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參數(shù)資料
| 型號： | MC145157P2 |
| 廠商： | MOTOROLA INC |
| 元件分類： | XO, clock |
| 英文描述： | Parallel-Input PLL Frequency Synthesizer |
| 中文描述： | PLL FREQUENCY SYNTHESIZER, 22 MHz, PDIP16 |
| 封裝： | PLASTIC, DIP-16 |
| 文件頁數(shù)： | 4/36頁 |
| 文件大?。?/td> | 718K |
| 代理商： | MC145157P2 |
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MC145151–2 through MC145158–2
4
MOTOROLA
φ
R,
φ
V
Phase Detector B Outputs (Pins 8, 9)
These phase detector outputs can be combined externally
for a loop–error signal. A single–ended output is also avail-
able for this purpose (see
PDout
).
If frequency fV is greater than fR or if the phase of fV is
leading, then error information is provided by
φ
V pulsing low.
φ
R remains essentially high.
If the frequency fV is less than fR or if the phase of fV is
lagging, then error information is provided by
φ
R pulsing low.
φ
V remains essentially high.
If the frequency of fV = fR and both are in phase, then both
φ
V and
φ
R remain high except for a small minimum time
period when both pulse low in phase.
fV
N Counter Output (Pin 10)
This is the buffered output of the
÷
N counter that is inter-
nally connected to the phase detector input. With this output
available, the
÷
N counter can be used independently.
LD
Lock Detector Output (Pin 28)
Essentially a high level when loop is locked (fR, fV of same
phase and frequency). Pulses low when loop is out of lock.
POWER SUPPLY
VDD
Positive Power Supply (Pin 3)
The positive power supply potential. This pin may range
from + 3 to + 9 V with respect to VSS.
VSS
Negative Power Supply (Pin 2)
The most negative supply potential. This pin is usually
ground.
TYPICAL APPLICATIONS
Figure 1. 5 MHz to 5.5 MHz Local Oscillator Channel Spacing = 1 kHz
0 1 1 1 0 0 0 1 0 0 0 = 5 MHz
1 0 1 0 1 1 1 1 1 0 0 = 5.5 MHz
5 – 5.5 MHz
VOLTAGE
CONTROLLED
OSCILLATOR
NC
NC
PDout
RA0
RA1
RA2
N13
N0
N1
N2
N3
N4
N5
N6
N7
N8
N9
N10
N11
N12
MC145151–2
fin
OSCout
OSCin
2.048 MHz
Figure 2. Synthesizer for Land Mobile Radio UHF Bands
NOTES:
1. fR = 4.1667 kHz;
÷
R = 2410; 21.4 MHz low side injection during receive.
2. Frequency values shown are for the 440 – 470 MHz band. Similar implementation applies to the 406 – 440 MHz band.
For 470 – 512 MHz, consider reference oscillator frequency X9 for mixer injection signal (90.3750 MHz).
60.2500 MHz
“0”
“1”
“1”
CHOICE OF
DETECTOR
ERROR
SIGNALS
LOCK DETECT SIGNAL
T: 13.0833 – 18.0833 MHz
R: 9.5167 – 14.5167 MHz
T: 73.3333 – 78.3333 MHz
R: 69.7667 – 74.7667 MHz
X6
VCO
LOOP
FILTER
DOWN
MIXER
X6
T/R
VSS
VDD
CHANNEL PROGRAMMING
÷
N = 2284 TO 3484
TRANSMIT
(ADDS 856 TO
÷
N VALUE)
RECEIVE
REF. OSC.
10.0417 MHz
(ON–CHIP OSC.
OPTIONAL)
“1”
“0”
“0”
fV
LD
RA0
RA1
RA2
OSCin
OSCout
MC145151–2
+ V
TRANSMIT: 440.0 – 470.0 MHz
RECEIVE: 418.6 – 448.6 MHz
(25 kHz STEPS)
PDout
φ
R
fV
fin
MC145151–2 Data Sheet Continued on Page 23
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PDF描述 |
|---|---|
| MC145157DW2 | Parallel-Input PLL Frequency Synthesizer |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MC145158-2 | 制造商:Motorola Inc 功能描述: |
| MC145158DW2 | 功能描述:IC SER-IN PLL FREQ SYNTH 16-SOIC RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器，PLL，頻率合成器 系列:- 標準包裝:39 系列:- 類型:* PLL:帶旁路 輸入:時鐘 輸出:時鐘 電路數(shù):1 比率 - 輸入:輸出:1:10 差分 - 輸入:輸出:是/是 頻率 - 最大:170MHz 除法器/乘法器:無/無 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:* 封裝/外殼:* 供應商設備封裝:* 包裝:* |
| MC145158DW2R2 | 制造商: 功能描述: 制造商:undefined 功能描述: |
| MC145159FN1R2 | 制造商:Motorola Inc 功能描述: |
| MC145159P1 | 制造商:Motorola Inc 功能描述: |
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