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參數(shù)資料
| 型號(hào)： | LM2316SLBX |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 1200 MHz, CQCC16 |
| 封裝： | CSP-16 |
| 文件頁(yè)數(shù)： | 17/19頁(yè) |
| 文件大?。?/td> | 300K |
| 代理商： | LM2316SLBX |
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1.0 Functional Description
The simplified block diagram below shows the 21-bit data register, a 14-bit R Counter, an 18-bit N Counter, and a 18-bit Function
Latch (intermediate latches are not shown). The data stream is shifted (on the rising edge of LE) into the DATA input, MSB first.
The last two bits are the Control Bits. The DATA is transferred into the counters as follows:
Control
DATA Location
C1
C2
0
R Counter
1
0
N Counter
0
1
Function Latch
1
Initialization
1.1 PROGRAMMABLEREFERENCE DIVIDER
If the Control Bits are [C
1,C2] = [0,0], data is transferred from the 21-bit shift register into a latch that sets the 14-bit R Counter.
The 4 bits R15–R18 are for test modes, and should be set to 0 for normal use. The LD precision bit, R19, is described in the
LOCK DETECT OUTPUT CHARACTERISTICS section. Serial data format is shown below.
1.1.1 14-BIT PROGRAMMABLE REFERENCE DIVIDER RATIO (R COUNTER)
Divide
RRRRR
RRRRRRRRR
Ratio
14
13
12
11
10
987654321
3
00000
000000011
4
00000
000000100
16383
11111
111111111
Notes: Divide ratios less than 3 are prohibited.
Divide ratio: 3 to 16383
R1 to R14: These bits select the divide ratio of the programmable reference divider.
DS100127-4
DS100127-5
Note: R15 to R18 are test modes and should be zero for normal operation.
Data is shifted in MSB first.
LMX2306/LMX2316/LMX2326
www.national.com
7
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| LM231A | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Precision Voltage-to-Frequency Converters |
| LM231AN | 功能描述:電壓頻率轉(zhuǎn)換及頻率電壓轉(zhuǎn)換 RoHS:否 制造商:Texas Instruments 全標(biāo)度頻率:4000 KHz 線性誤差:+/- 1 % FSR 電源電壓-最大: 電源電壓-最小: 最大工作溫度:+ 85 C 最小工作溫度:- 25 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-14 封裝:Tube |
| LM231AN/A+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-to-Frequency Converter |
| LM231AN/B+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-to-Frequency Converter |
| LM231AN/NOPB | 功能描述:電壓頻率轉(zhuǎn)換及頻率電壓轉(zhuǎn)換 RoHS:否 制造商:Texas Instruments 全標(biāo)度頻率:4000 KHz 線性誤差:+/- 1 % FSR 電源電壓-最大: 電源電壓-最小: 最大工作溫度:+ 85 C 最小工作溫度:- 25 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-14 封裝:Tube |
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