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參數(shù)資料
| 型號(hào)： | LMX2372TMX |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類(lèi)： | XO, clock |
| 英文描述： | PLLatinum⑩ Dual Frequency Synthesizer for RF Personal Communications |
| 中文描述： | PLL FREQUENCY SYNTHESIZER, 1200 MHz, PDSO20 |
| 封裝： | PLASTIC, TSSOP-20 |
| 文件頁(yè)數(shù)： | 2/16頁(yè) |
| 文件大小： | 217K |
| 代理商： | LMX2372TMX |
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Connection Diagrams
Pin Descriptions
Pin No.
Pin
Name
I/O
Description
24-Pin
CSP
24
20-Pin
TSSOP
1
V
CC
1
—
Power supply voltage input for RF analog and RF digital circuits. Input may range
from 2.7V to 5.5V. V
CC
1 must equal V
CC
2. Bypass capacitors should be placed as
close as possible to this pin and be connected directly to the ground plane.
Power supply for Main charge pump. Must be
≥
V
CC
.
Internal Main charge pump output. For connection to a loop filter for driving the
input of an external VCO.
Ground for Main digital circuitry.
Main prescaler input. Small signal input from the VCO.
Main prescaler complementary input. For single ended operation, a bypass
capacitor should be placed as close as possible to this pin and be connected
directly to the ground plane.
Ground for Main analog circuitry.
Oscillator input. The input has a V
CC
/2 input threshold and can be driven from an
external CMOS or TTL logic gate.
Ground for Aux digital, MICROWIRE, FoLD, and oscillator circuits.
Multiplexed output of the Main/Aux programmable or reference dividers,
Main/Auxiliary lock detect signals and Fastlock mode. CMOS output (see
Programmable Modes in the Datasheet).
High impedance CMOS Clock input. Data for the various counters is clocked in on
the rising edge, into the 22-bit shift register.
Binary serial data input. Data entered MSB first. The last two bits are the control
bits. High impedance CMOS input.
Load enable. High impedance CMOS input. When LE goes HIGH, data stored in
the shift registers is loaded into one of the 4 appropriate latches (control bit
dependent).
2
3
2
3
Vp1
CP
o
1
—
O
4
5
6
4
5
6
GND
f
IN
1
f
IN
1b
—
I
I
7
8
7
8
GND
OSC
in
—
I
10
11
9
GND
Fo/LD
—
O
10
12
11
Clock
I
14
12
Data
I
15
13
LE
I
TSSOP 20-Pin Package
DS101026-2
Top View
Order Number LMX2370TM, LMX2370TMX,
LMX2371TM, LMX2371TMX,
LMX2372TM or LMX2372TMX
See NS Package Number MTC20
CSP 24-Pin Package
DS101026-3
Top View
Order Number LMX2370SLBX,
LMX2371SLBX or LMX2372SLBX
See NS Package Number SLB24A
www.national.com
2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LMX2372TM | PLLatinum⑩ Dual Frequency Synthesizer for RF Personal Communications |
| LMX2377UTMX | PLLatinum⑩ Ultra Low Power Dual Frequency Synthesizer for RF Personal Communications |
| LMX2377UTM | Enclosed Switches Series LS: Side Rotary with 1.5" to 3.5" Adjustable Length Lever; Nylon Roller; 1NC 1NO SPDT Snap Action, Double Break; 0.5 in - 14NPT conduit; Plug-in |
| LMX2377USLBX | PLLatinum⑩ Ultra Low Power Dual Frequency Synthesizer for RF Personal Communications |
| LMX2377USLEX | POSITIONER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LMX2377U | 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:PLLatinum⑩ Ultra Low Power Dual Frequency Synthesizer for RF Personal Communications |
| LMX2377U WAF | 制造商:Texas Instruments 功能描述: |
| LMX2377USLBX | 功能描述:IC FREQ SYNTH DUAL 24LAMINATECSP 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:* |
| LMX2377USLEX | 功能描述:IC FREQ SYNTH DUAL 20LAMUCSP 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:* |
| LMX2377UTM | 功能描述:IC FREQ SYNTH DUAL 20TSSOP 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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