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參數(shù)資料
| 型號： | LMX2313USLDX/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 600 MHz, QCC20 |
| 封裝： | LEAD FREE, THIN, CSP-20 |
| 文件頁數(shù)： | 23/29頁 |
| 文件大小： | 662K |
| 代理商： | LMX2313USLDX/NOPB |
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Pin Descriptions
Pin Number
Pin Name
I/O
Description
I/O Circuit Configuration
1
NC
— No Connect.
2CP
o
O Charge Pump output. For connection to a
loop filter for driving the voltage control
input of an external VCO.
3
GND
— Analog ground.
4F
IN
I
RF prescaler input. Small signal input
from the VCO.
5F
INB
I
RF prescaler complementary input. For
single ended operation, this pin should be
AC grounded. The LMX2310/1/2/3U can
be driven differentially when a bypass
capacitor is omitted.
6
OSC
IN
I
Oscillator input. An input to a CMOS low
noise inverting buffer. The input can be
driven from an external CMOS or TTL
logic gate.
7
NC
— No Connect.
8
OSC
OUT
O
Oscillator output. The OSC
IN low noise
buffer drives an independent oscillator
buffer. Its output is connected to the
OSC
OUT pin. It can be used as a buffer to
provide the reference oscillator frequency
to other circuitry or as a crystal oscillator.
9
FoLD
O
Multi-function CMOS output pin that
provides multiplexed access to digital lock
detect, open drain analog lock detect, as
well as the outputs of the R and N
counters. The FoLD pin is internally
referenced to V
C.
10
Clock
I
High impedance CMOS Clock input. Data
for the counters is clocked in on the rising
edge, into the 22-bit shift register. The
Clock is internally referenced to V
C.
LMX2310U/LMX231
1U/LMX2312U/LMX2313U
www.national.com
3
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LMX2314 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:1.2 GHz Frequency Synthesizer for RF Personal Communications |
| LMX2314M | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:1.2 GHz Frequency Synthesizer for RF Personal Communications |
| LMX2314MX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:1.2 GHz Frequency Synthesizer for RF Personal Communications |
| LMX2315 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:1.2 GHz Frequency Synthesizer for RF Personal Communications |
| LMX2315D WAF | 制造商:Texas Instruments 功能描述: |
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