參數(shù)資料
型號: LMX2515LQ1321/NOPB
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: PLL合成/DDS/VCOs
英文描述: PLL FREQUENCY SYNTHESIZER, 26 MHz, QCC28
封裝: 5 X 5 MM, 0.75 MM HEIGHT, LLP-28
文件頁數(shù): 10/17頁
文件大?。?/td> 254K
代理商: LMX2515LQ1321/NOPB
Connection Diagrams
28-Pin 5x5 LLP (LQ) Package
(LMX2515LQ0701 - Top View)
28-Pin 5x5 LLP (LQ) Package
(LMX2515LQ1321 - Top View)
20068802
20068811
Pin Descriptions
Pin Number
LMX2515LQ0701
Pin Number
LMX2515LQ1321
Name
I/O
Description
1
OSCin
I
Reference frequency input
2
GND
Ground for digital circuitry
33
V
DD
Supply voltage for analog circuitry
4
GND
Ground for analog circuitry
5
NC
Do not connect to any node on the printed circuit board.
6
NC
Do not connect to any node on the printed circuit board.
77
V
DD
Supply voltage for RF analog circuitry
8
NC
Do not connect to any node on the printed circuit board.
9
L1
RF VCO tank pin. An external inductor is required
between pins L1 and L2 to set the resonant frequency of
LMX2515LQ0701 RF VCO.
9
NC
Do not connect to any node on the printed circuit board.
10
L2
RF VCO tank pin. An external inductor is required
between pins L1 and L2 to set the resonant frequency of
LMX2515LQ0701 RF VCO.
10
NC
Do not connect to any node on the printed circuit board.
11
NC
Do not connect to any node on the printed circuit board.
12
NC
Do not connect to any node on the printed circuit board.
13
V
DD
Supply voltage for RF analog circuitry
14
NC
Do not connect to any node on the printed circuit board.
14
RFout
O
RF VCO output for LMX2515LQ1321
15
V
DD
Supply voltage for RF analog circuitry
16
RFout
O
RF VCO output for LMX2515LQ0701
16
NC
Do not connect to any node on the printed circuit board.
17
V
DD
Supply voltage for analog circuitry
18
GND
Ground for digital circuitry
19
V
CC
Supply voltage for digital circuitry
20
GND
Ground for digital circuitry
21
V
CC
Supply voltage for digital circuitry
22
LE
I
MICROWIRE Latch Enable
23
DATA
I
MICROWIRE Data
LMX2515
www.national.com
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