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參數(shù)資料
| 型號(hào)： | LMX2370TM/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 2500 MHz, PDSO20 |
| 封裝： | PLASTIC, TSSOP-20 |
| 文件頁數(shù)： | 19/25頁 |
| 文件大?。?/td> | 577K |
| 代理商： | LMX2370TM/NOPB |
Pin Descriptions (Continued)
Pin No.
Pin
Name
I/O
Description
24-Pin
CSP/
TCSP
20-Pin
TSSOP
66
f
IN1b
I
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.
7
GND
—
Ground for Main analog circuitry.
8
OSC
in
I
Oscillator input. The input has a V
CC/2 input
threshold and can be driven from an external
CMOS or TTL logic gate.
10
9
GND
—
Ground for Aux digital, MICROWIRE, FoLD, and
oscillator circuits.
11
10
Fo/LD
O
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).
12
11
Clock
I
High impedance CMOS Clock input. Data for the
various counters is clocked in on the rising edge,
into the 22-bit shift register.
14
12
Data
I
Binary serial data input. Data entered MSB first.
The last two bits are the control bits. High
impedance CMOS input.
15
13
LE
I
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).
16
14
Vc
—
Power supply for MICROWIRE circuitry. Must be
≤
V
CC. Typically connected to same supply level as
processor or baseband controller to enable
programming at low voltages.
17
15
GND
—
Ground for Aux analog circuitry.
18
16
f
IN2
I
Auxiliary prescaler input. Small signal input from
the VCO.
19
17
GND
—
Ground for Aux digital, MICROWIRE, FoLD, and
oscillator.
LMX2370
www.national.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LMX2370TMX | 功能描述:IC FREQ SYNTH DL 2.5GHZ 20-TSSOP RoHS:否 類別: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/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:* |
| 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:未知廠家 制造商全稱:未知廠家 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 類別: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/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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