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参数资料
| 型号： | LMX2335UTM |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | XO, clock |
| 英文描述： | PLLatinum Ultra Low Power Dual Frequency Synthesizer for RF Personal Communications |
| 中文描述： | PLL FREQUENCY SYNTHESIZER, 1200 MHz, PDSO16 |
| 封装： | PLASTIC, TSSOP-16 |
| 文件页数： | 12/48页 |
| 文件大小： | 3127K |
| 代理商： | LMX2335UTM |
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Electrical Characteristics
(Continued)
V
CC
= V
P
RF1 = V
P
RF2 = 3.0V, 40C
≤
T
A
≤
+85C, unless otherwise specified
Symbol
Parameter
Conditions
Value
Typ
Units
Min
Max
PHASE NOISE CHARACTERISTICS
L
N
(f) RF2
RF2 Synthesizer Normalized Phase
Noise Contribution
(Note 10)
L(f) RF2
RF2 Synthesizer
Single Side Band
Phase Noise
Measured
TCXO Reference Source
ID
o
RF2 Bit = 1
-212.0
dBc/
Hz
LMX2335U
f
IN
RF2 = 900 MHz
f = 1 kHz Offset
F
φ
RF2
= 200 kHz
Loop Bandwidth = 12 kHz
N = 4500
F
OSC
= 10 MHz
V
OSC
= 0.632 V
PP
ID
o
RF2 Bit = 1
PWDN RF1 Bit = 1
T
A
= +25C
(Note 11)
f
IN
RF2 = 900 MHz
f = 1 kHz Offset
F
φ
RF2
= 200 kHz
Loop Bandwidth = 12 kHz
N = 4500
F
OSC
= 10 MHz
V
OSC
= 0.632 V
PP
ID
o
RF2 Bit = 1
PWDN RF1 Bit = 1
T
A
= +25C
(Note 11)
-85.94
dBc/
Hz
LMX2336U
-85.94
dBc/
Hz
Note 4:
Some of the values in this range are illegal divide ratios (B
<
A). To obtain continuous legal division, the Minimum Divide Ratio must be calculated. Use N
≥
P
*
(P1), where P is the value selected for the prescaler.
Note 5:
Refer to the LMX2335U and LMX2336U f
IN
Sensitivity Test Setup section
Note 6:
Refer to the LMX2335U and LMX2336U Charge Pump Test Setup section
Note 7:
Refer to the Charge Pump Current Specification Definitions for details on how these measurements are made.
Note 8:
Refer to the LMX2335U and LMX2336U OSC
in
Sensitivity Test Setup section
Note 9:
Refer to the LMX2335U and LMX2336U Serial Data Input Timing section
Note 10:
Normalized Phase Noise Contribution is defined as : L
N
(f) = L(f) 20 log (N) 10 log (F
φ
), where L(f) is defined as the single side band phase noise
measured at an offset frequency, f, in a 1 Hz bandwidth. The offset frequency, f, must be chosen sufficiently smaller than the PLL’s loop bandwidth, yet large enough
to avoid substantial phase noise contribution from the reference source. N is the value selected for the feedback divider and F
φ
is the RF1/RF2 phase detector
comparison frequency..
Note 11:
The synthesizer phase noise is measured with the LMX2335TMEB/LMX2335SLBEB or LMX2336TMEB/LMX2336SLBEB/LMX2336SLEEB Evaluation
boards and the HP8566B Spectrum Analyzer.
L
www.national.com
12
相关PDF资料 |
PDF描述 |
|---|---|
| LMX2335U | PLLatinum Ultra Low Power Dual Frequency Synthesizer for RF Personal Communications |
| LMX2336 | PLLatinum⑩ Low Power Dual Frequency Synthesizer for RF Personal Communications |
| LMX2336LSLB | PLLatinum⑩ Low Power Dual Frequency Synthesizer for RF Personal Communications |
| LMX2336LTM | PLLatinum⑩ Low Power Dual Frequency Synthesizer for RF Personal Communications |
| LMX2336TM | PLLatinum⑩ Dual Frequency Synthesizer for RF Personal Communications |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LMX2335UTM/NOPB | 功能描述:IC FREQ SYNTHESIZER DUAL 16TSSOP RoHS:是 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:* |
| LMX2335UTMX | 制造商:NSC 制造商全称:National Semiconductor 功能描述:PLLatinum Ultra Low Power Dual Frequency Synthesizer for RF Personal Communications |
| LMX2336 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:PLLatinum⑩ Dual Frequency Synthesizer for RF Personal Communications |
| LMX2336 WAF | 制造商:Texas Instruments 功能描述: |
| LMX2336L | 制造商:NSC 制造商全称:National Semiconductor 功能描述:PLLatinum⑩ Low Power Dual Frequency Synthesizer for RF Personal Communications |
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