- 您现在的位置：买卖IC网 > PDF目录44574 > LMX2370TM/NOPB (NATIONAL SEMICONDUCTOR CORP) PLL FREQUENCY SYNTHESIZER, 2500 MHz, PDSO20 PDF资料下载
参数资料
| 型号： | LMX2370TM/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 2500 MHz, PDSO20 |
| 封装： | PLASTIC, TSSOP-20 |
| 文件页数： | 1/25页 |
| 文件大小： | 577K |
| 代理商： | LMX2370TM/NOPB |
LMX2370
PLLatinum Dual Frequency Synthesizer for RF
Personal Communications
LMX2370
2.5 GHz/1.2 GHz
General Description
The LMX2370 monolithic, integrated dual frequency synthe-
sizer, including prescalers, is designed to be used as a first
and second local oscillator for dual mode or dual conversion
transceivers. It is fabricated using National’s 0.5u ABiCV
silicon BiCMOS process. The LMX2370 contains two dual
modulus prescalers. A 32/33 or a 16/17 prescaler can be
selected for the Main synthesizer and a 16/17 or 8/9 pres-
caler can be selected for the Aux synthesizer. Using a digital
phase locked loop technique, the LMX2370 generates very
stable, low noise control signals for UHF and VHF voltage
controlled oscillators (VCOs). Serial data is transferred into
the LMX2370 via a 1.8 V three wire interface (Data, Enable,
Clock) compatible with low voltage baseband processors.
Supply voltage can range from 2.7V to 5.5V. The LMX2370
features very low current consumption typically: - 6.0 mA at
3V.
The LMX2370 is available in a 24-pad chip scale (CSP),
24-pad thin chip scale (TCSP) or 20-pin TSSOP surface
mount plastic packages.
Features
n
2.7V–5.5V operation
n
Ultra low current consumption
n
Low phase detector noise floor
n
Low voltage MICROWIRE interface (1.8V up to V
CC)
n
Low prescaler values
32/33 at f
IN
≤ 2.5 GHz
16/17 at f
IN
≤ 1.2 GHz
n
Selectable charge pump current levels
n
Selectable FastLock mode
n
Enhanced ESD protection
n
Available in small 24-pad chip scale package (3.5 x 4.5
x 1.0 mm)
n
Available in small 24-pad chip thin scale package (3.5 x
4.5 x 0.8 mm)
Applications
n
Portable wireless communications (PCS/PCN, cordless)
n
Dual mode cellular telephone systems
n
Spread spectrum communication systems (CDMA)
n
Cable TV tuners (CATV)
Functional Block Diagram
10102604
FastLock, PLLatinum and MICROWIRE are trademarks of National Semiconductor Corporation.
TRI-STATE is a registered trademark of National Semiconductor Corporation.
November 2003
LMX2370
PLLatinum
Dual
Frequency
Synthesizer
for
RF
Personal
Communications
LMX2370
2.5
GHz/1.2
GHz
2003 National Semiconductor Corporation
DS101026
www.national.com
相关PDF资料 |
PDF描述 |
|---|---|
| LMX2512LQX0967/NOPB | PLL FREQUENCY SYNTHESIZER, 19.68 MHz, QCC28 |
| LMX2515LQX0701/NOPB | PLL FREQUENCY SYNTHESIZER, 26 MHz, QCC28 |
| LMX2525LQ1321/NOPB | PLL FREQUENCY SYNTHESIZER, 26 MHz, QCC24 |
| LMZ12001EXTTZE | SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PSSO7 |
| LMZ12001TZE-ADJ | SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PSSO7 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LMX2370TMX | 功能描述:IC FREQ SYNTH DL 2.5GHZ 20-TSSOP RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器，PLL，频率合成器 系列:PLLatinum™ 标准包装:39 系列:- 类型:* PLL:带旁路 输入:时钟 输出:时钟 电路数:1 比率 - 输入:输出:1:10 差分 - 输入:输出:是/是 频率 - 最大:170MHz 除法器/乘法器:无/无 电源电压:2.375 V ~ 3.465 V 工作温度:0°C ~ 70°C 安装类型:* 封装/外壳:* 供应商设备封装:* 包装:* |
| LMX2370TMX/NOPB | 制造商:Texas Instruments 功能描述:PLL Frequency Synthesizer Dual 45MHz to 2500MHz 20-Pin TSSOP T/R |
| LMX2371 | 制造商:未知厂家 制造商全称:未知厂家 功能描述: |
| LMX2371 WAF | 制造商:Texas Instruments 功能描述: |
| LMX2371SLBX | 功能描述:IC FREQ SYNTH DUAL 24LAMINATECSP RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器，PLL，频率合成器 系列:PLLatinum™ 标准包装:39 系列:- 类型:* PLL:带旁路 输入:时钟 输出:时钟 电路数:1 比率 - 输入:输出:1:10 差分 - 输入:输出:是/是 频率 - 最大:170MHz 除法器/乘法器:无/无 电源电压:2.375 V ~ 3.465 V 工作温度:0°C ~ 70°C 安装类型:* 封装/外壳:* 供应商设备封装:* 包装:* |
发布紧急采购，3分钟左右您将得到回复。