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參數(shù)資料
| 型號(hào)： | LMX15010AM |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 1.1 GHz Frequency Synthesizer for RF Personal Communications(367.82 k) |
| 中文描述： | 1.1千兆赫頻率合成射頻個(gè)人通信（367.82十一） |
| 文件頁數(shù)： | 11/22頁 |
| 文件大?。?/td> | 367K |
| 代理商： | LMX15010AM |
Functional Description
(Continued)
PROGRAMMABLE DIVIDER (N COUNTER)
The N counter consists of the 7-bit swallow counter (A counter) and the 11-bit programmable counter (B counter). If the Control
Bit (last bit shifted into the Data Register) is LOW, data is transferred from the 19-bit shift register into a 7-bit latch (which sets
the 7-bit Swallow (A) Counter) and an 11-bit latch (which sets the 11-bit programmable (B) Counter). Serial data format is shown
below.
TL/W/12340–21
Note:
S8 to S18: Programmable counter divide ratio control bits (3 to 2047)
7-BIT SWALLOW COUNTER DIVIDE RATIO
(A COUNTER)
Divide
Ratio
A
S
7
S
6
S
5
S
4
S
3
S
2
S
1
0
0
0
0
0
0
0
0
1
#
0
#
0
#
0
#
0
#
0
#
0
#
1
#
127
1
1
1
1
1
1
1
Note:
Divide ratio: 0 to 127
B
t
A
11-BIT PROGRAMMABLE COUNTER DIVIDE RATIO
(B COUNTER)
Divide
Ratio
B
18
S
17
S
16
S
15
S
14
S
13
S
12
S
11
S
10
S
S
9
S
8
3
0
0
0
0
0
0
0
0
0
1
1
4
#
0
#
0
#
0
#
0
#
0
#
0
#
0
#
0
#
1
#
0
#
0
#
2047
1
1
1
1
1
1
1
1
1
1
1
Note:
Divide ratio: 3 to 2047 (Divide ratios less than 3 are prohibited)
B
t
A
PULSE SWALLOW FUNCTION
f
VCO
e
[
(P
c
B)
a
A
]
c
f
OSC
/R
f
VCO
: Output frequency of external voltage controlled oscil-
lator (VCO)
B:
Preset divide ratio of binary 11-bit programmable
counter (3 to 2047)
A:
Preset divide ratio of binary 7-bit swallow counter
(0
s
A
s
127, A
s
B)
f
OSC
: Output frequency of the external reference frequency
oscillator
R:
Preset divide ratio of binary 14-bit programmable ref-
erence counter (3 to 16383)
P:
Preset modulus of dual moduIus prescaler (64 or
128)
11
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相關(guān)代理商/技術(shù)參數(shù) |
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| LMX1501A | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinumTM 1.1 GHz Frequency Synthesizer for RF Personal Communications |
| LMX1501AM | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinumTM 1.1 GHz Frequency Synthesizer for RF Personal Communications |
| LMX1501AMX | 功能描述:IC FREQ SYNTHESIZR 1.1GHZ 16SOIC RoHS:否 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘發(fā)生器，PLL，頻率合成器 系列:PLLatinum™ 標(biāo)準(zhǔn)包裝:39 系列:- 類型:* PLL:帶旁路 輸入:時(shí)鐘 輸出:時(shí)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(yīng)商設(shè)備封裝:* 包裝:* |
| LMX1511 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinumTM 1.1 GHz Frequency Synthesizer for RF Personal Communications |
| LMX1511TM | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinumTM 1.1 GHz Frequency Synthesizer for RF Personal Communications |
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