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參數(shù)資料
| 型號： | LMX2336UTMX/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 2000 MHz, PDSO20 |
| 封裝： | PLASTIC, TSSOP-20 |
| 文件頁數(shù)： | 1/48頁 |
| 文件大?。?/td> | 3127K |
| 代理商： | LMX2336UTMX/NOPB |
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LMX2335U/LMX2336U
PLLatinum Ultra Low Power Dual Frequency
Synthesizer for RF Personal Communications
LMX2335U
1.2 GHz/1.2 GHz
LMX2336U
2.0 GHz/1.2 GHz
General Description
The LMX2335U and LMX2336U devices are high perfor-
mance frequency synthesizers with integrated dual modulus
prescalers. The LMX2335U and LMX2336U devices are
designed
for
use
in
applications
requiring
two
RF
phase-locked loops.
A 64/65 or a 128/129 prescale ratio can be selected for each
RF synthesizer. Using a proprietary digital phase locked loop
technique, the LMX2335U and LMX2336U devices generate
very stable, low noise control signals for the RF voltage
controlled oscillators. Both RF synthesizers include a
two-level programmable charge pump. The RF1 synthesizer
has dedicated Fastlock circuitry.
Serial data is transferred to the devices via a three wire
interface (Data, LE, Clock). Supply voltages from 2.7V to
5.5V are supported. The LMX2335U and the LMX2336U
feature very low current consumption:
LMX2335U (1.2 GHz)– 3.0 mA, LMX2336U (2.0 GHz)–
3.5 mA at 3.0V.
The LMX2335U device is available in 16-pin TSSOP, and
16-pin Chip Scale Package (CSP) surface mount plastic
packages. The LMX2336U device is available in 20-Pin
TSSOP, 24-Pin CSP, and 20-Pin UTCSP surface mount
plastic packages.
Features
n
Ultra Low Current Consumption
n
Upgrade and Compatible to the LMX2335L and
LMX2336L devices
n
2.7V to 5.5V operation
n
Selectable Synchronous or Asynchronous Powerdown
Mode:
I
CC-PWDN = 1 A typical at 3.0V
n
Selectable Dual Modulus Prescaler
RF1: 64/65 or 128/129
RF2: 64/65 or 128/129
n
Selectable Charge Pump TRI-STATE Mode
n
Programmable Charge Pump Current Levels
RF1 and RF2: 0.95 or 3.8 mA
n
Selectable Fastlock Mode for the RF1 Synthesizer
n
Push-Pull Analog Lock Detect Mode
n
LMX2335U is available in 16-Pin TSSOP and 16-Pin
CSP
n
LMX2336U is available in 20-Pin TSSOP, 24-Pin CSP,
and 20-Pin UTCSP
Applications
n
Mobile Handsets
(GSM, GPRS, W-CDMA, CDMA, PCS, AMPS, PDC,
DCS)
n
Cordless Handsets (DECT, DCT)
n
Wireless Data
n
Cable TV Tuners
Thin Shrink Small Outline Package (MTC16)
Thin Shrink Small Outline Package (MTC20)
10136787
10136780
Chip Scale Package (SLB16A)
Chip Scale Package (SLB24A)
Ultra Thin Chip Scale Package
(SLE20A)
10136788
10136781
10136795
TRI-STATE is a registered trademark of National Semiconductor Corporation.
Fastlock, MICROWIRE and PLLatinum are trademarks of National Semiconductor Corporation.
November 2002
LMX2335U/LMX2336U
PLLatinum
Ultra
Low
Power
Dual
Frequency
Synthesizer
for
RF
Personal
Communications
2002 National Semiconductor Corporation
DS101367
www.national.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LMX2337 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinum⑩ Dual Frequency Synthesizer for RF Personal Communications |
| LMX2337M | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinum⑩ Dual Frequency Synthesizer for RF Personal Communications |
| LMX2337MX | 功能描述:IC FREQ SYNTH DUAL 1.1GHZ 16SOIC RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器，PLL，頻率合成器 系列:PLLatinum™ 標(biāo)準(zhǔn)包裝:39 系列:- 類型:* PLL:帶旁路 輸入:時鐘 輸出:時鐘 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/無 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:* 封裝/外殼:* 供應(yīng)商設(shè)備封裝:* 包裝:* |
| LMX2337TM | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinum⑩ Dual Frequency Synthesizer for RF Personal Communications |
| LMX2337TMX | 功能描述:IC FREQ SYNTH DL 1.1GHZ 16-TSSOP RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器，PLL，頻率合成器 系列:PLLatinum™ 標(biāo)準(zhǔn)包裝:39 系列:- 類型:* PLL:帶旁路 輸入:時鐘 輸出:時鐘 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/無 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:* 封裝/外殼:* 供應(yīng)商設(shè)備封裝:* 包裝:* |
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