參數(shù)資料
型號(hào)： LMX2312U
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類(lèi)： XO, clock
英文描述： PLLatinum⑩ Ultra Low Power Frequency Synthesizer for RF Personal Communications
中文描述： PLL FREQUENCY SYNTHESIZER, 1200 MHz, QCC20
封裝： THIN, CSP-20
文件頁(yè)數(shù)： 3/29頁(yè)
文件大小： 662K
代理商： LMX2312U
Pin Descriptions
Pin Number
1
2
Pin Name
NC
CP
o
I/O
— No Connect.
O Charge Pump output. For connection to a
loop filter for driving the voltage control
input of an external VCO.
Description
I/O Circuit Configuration
3
4
GND
F
IN
— Analog ground.
I
RF prescaler input. Small signal input
from the VCO.
5
F
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
8
NC
OSC
OUT
— No Connect.
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
μC
.
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
μC
.
L
www.national.com
3
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LMX2312USLDX 制造商:MAJOR 功能描述:
LMX2312USLDX/NOPB 功能描述:IC FREQ SYNTH 1.2GHZ 20LAMTCSP RoHS:是 類(lèi)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(lèi)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(wú)/無(wú) 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類(lèi)型:* 封裝/外殼:* 供應(yīng)商設(shè)備封裝:* 包裝:*
LMX2313U 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinum⑩ Ultra Low Power Frequency Synthesizer for RF Personal Communications
LMX2313USLDX 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinum⑩ Ultra Low Power Frequency Synthesizer for RF Personal Communications
LMX2313USLDX/NOPB 功能描述:IC FREQ SYNTH 600MHZ 20LAMTCSP RoHS:否 類(lèi)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(lèi)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(wú)/無(wú) 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類(lèi)型:* 封裝/外殼:* 供應(yīng)商設(shè)備封裝:* 包裝:*
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