參數(shù)資料
型號(hào)： LMX2470
廠商： National Semiconductor Corporation
英文描述： 2.6 GHz Delta-Sigma Fractional-N PLL with 800 MHz Integer-N PLL
中文描述： 2.6 GHz的Δ-Σ分?jǐn)?shù)N與800兆赫整數(shù)N分頻PLL鎖相環(huán)
文件頁(yè)數(shù)： 2/36頁(yè)
文件大?。?/td> 453K
代理商： LMX2470
Connection Diagram
24-Pin CSP (SLE) Package
20059322
Pin Descriptions
Pin
#
Pin
Name
CPoutRF
GND
GND
GND
FinRF
FinRF*
I/O
Pin Description
1
2
3
4
5
6
O
-
-
-
I
I
RF charge pump output.
Ground
RF Ground
Ground for RF PLL digital circuitry.
RF prescaler input. Small signal input from the VCO.
RF prescaler complimentary 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.
RF PLL power supply voltage input. Must be equal to VccIF . May range from 2.25V to
2.75V. Bypass capacitors should be placed as close as possible to this pin and be
connected directly to the ground plane.
Chip enable input. High impedance CMOS input. When EN is high, the chip is powered
up, otherwise it is powered down.
This pin should be grounded for normal operation.
MICROWIRE Clock. High impedance CMOS Clock input. Data for the various counters is
clocked into the 24 bit shift register on the rising edge.
MICROWIRE Data. High impedance binary serial data input.
MICROWIRE Load Enable. High impedance CMOS input. Data stored in the shift
registers is loaded into the internal latches when LE goes HIGH
Test frequency output / Lock Detect
Digital power supply for IF PLL
IF power supply voltage input. Must be equal to VccRF. Input may range from 2.25 V to
2.75 V. Bypass capacitors should be placed as close as possible to this pin and be
connected directly to the ground plane.
Ground for RF PLL digital circuitry.
IF prescaler input. Small signal input from the VCO.
Digital ground for IF PLL
IF PLL charge pump output
IF Fastlock Output. Also functions as Programmable TRI-STATE CMOS output.
Complementary reference input or oscillator output.
Reference input
Digital power supply for RF PLL
RF Fastlock Output. Also functions as Programmable TRI-STATE CMOS output.
7
VccRF
8
EN
I
9
10
ENOSC
CLK
I
I
11
12
DATA
LE
I
13
14
15
Ftest/LD
VddIF
VccIF
O
-
-
16
17
18
19
20
21
22
23
24
GND
FinIF
GND
CPoutIF
FLoutIF
OSCout*
OSCin
VddRF
FLoutRF
-
I
-
O
O
I/O
I
-
O
L
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相關(guān)PDF資料
PDF描述
LMX2470SLEX 2.6 GHz Delta-Sigma Fractional-N PLL with 800 MHz Integer-N PLL
LMX2485 50 MHz - 3.0 GHz High Performance Delta-Sigma Low Power Dual PLLatinum⑩ Frequency Synthesizers with 800 MHz Integer PLL
LMX2485E 50 MHz - 3.0 GHz High Performance Delta-Sigma Low Power Dual PLLatinum⑩ Frequency Synthesizers with 800 MHz Integer PLL
LMX2485ESQ 50 MHz - 3.0 GHz High Performance Delta-Sigma Low Power Dual PLLatinum⑩ Frequency Synthesizers with 800 MHz Integer PLL
LMX2485ESQX 50 MHz - 3.0 GHz High Performance Delta-Sigma Low Power Dual PLLatinum⑩ Frequency Synthesizers with 800 MHz Integer PLL
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LMX2470EVAL 功能描述:時(shí)鐘和定時(shí)器開(kāi)發(fā)工具 LMX2470 EVAL BOARD RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Modules 類型:Clock Conditioners 工具用于評(píng)估:LMK04100B 頻率:122.8 MHz 工作電源電壓:3.3 V
LMX2470SLEX 功能描述:鎖相環(huán) - PLL RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數(shù)量:1 最大輸入頻率:710 MHz 最小輸入頻率:0.002 MHz 輸出頻率范圍:0.002 MHz to 808 MHz 電源電壓-最大:3.63 V 電源電壓-最小:1.71 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:QFN-36 封裝:Tray
LMX2470SLEX/NOPB 功能描述:鎖相環(huán) - PLL RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數(shù)量:1 最大輸入頻率:710 MHz 最小輸入頻率:0.002 MHz 輸出頻率范圍:0.002 MHz to 808 MHz 電源電壓-最大:3.63 V 電源電壓-最小:1.71 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:QFN-36 封裝:Tray
LMX2471 制造商:NSC 制造商全稱:National Semiconductor 功能描述:3.6 GHz Delta-Sigma Fractional-N PLL with 1.7 GHz Integer-N PLL
LMX2471 WAF 制造商:Texas Instruments 功能描述:
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