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参数资料
| 型号： | LMX2312USLDX |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 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 |
| 封装： | THIN, CSP-20 |
| 文件页数： | 4/29页 |
| 文件大小： | 662K |
| 代理商： | LMX2312USLDX |
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Pin Descriptions
(Continued)
Pin Number
11
12
Pin Name
NC
Data
I/O
— No Connect.
I
High impedance CMOS Data input. Serial
Data is entered MSB first. The last two
bits are the address for the target
registers. The Data is internally referenced
to V
μC
.
Description
I/O Circuit Configuration
13
LE
I
High impedance CMOS LE input. When
Latch Enable goes HIGH, data stored in
the 22-bit shift register is loaded into one
the 3 control registers, based on the
address field. The Latch Enable is
internally referenced to V
μC
.
14
15
GND
CE
— Digital ground.
I
High impedance CMOS Chip Enable
input. Provides logical power-down control
of the device. Pull-up to V
μC
if unused.
The Chip Enable is internally referenced
to V
μC
.
16
V
μC
— Power supply for MICROWIRE
circuitry.
Must be
≤
V
CC
. Typically connected to
same supply level as microprocessor or
baseband controller to enable
programming at low voltages.
— No Connect.
— Power supply voltage input. Input may
range from 2.7V to 5.5V. Bypass
capacitors should be placed as close as
possible to this pin and be connected
directly to the ground plane.
O Fastlock mode output. In Fastlock mode
this pin is at logic low. When not in
Fastlock mode, this pin is in TRI-STATE
mode. This pin can also be forced to
TRI-STATE, forced low or forced high by
the programming of the first two-bits of the
Timeout Counter.
— Power supply for charge pump. Must be
≥
V
CC
.
17
18
NC
V
CC
19
FL
20
V
P
L
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相关代理商/技术参数 |
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|---|---|
| LMX2312USLDX/NOPB | 功能描述:IC FREQ SYNTH 1.2GHZ 20LAMTCSP 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:* |
| LMX2313U | 制造商:NSC 制造商全称:National Semiconductor 功能描述:PLLatinum⑩ Ultra Low Power Frequency Synthesizer for RF Personal Communications |
| LMX2313USLDX | 制造商:NSC 制造商全称: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 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:* |
| LMX2314 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:1.2 GHz Frequency Synthesizer for RF Personal Communications |
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