參數(shù)資料
型號: LMX2372MDC
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: PLL合成/DDS/VCOs
英文描述: PLL FREQUENCY SYNTHESIZER, 1200 MHz, UUC
封裝: DIE
文件頁數(shù): 12/27頁
文件大?。?/td> 550K
代理商: LMX2372MDC
Connection Diagrams
Pin Descriptions
Pin No.
Pin
Name
I/O
Description
24-Pin
CSP
20-Pin
TSSOP
24
1
V
CC1
Power supply voltage input for RF analog and
RF digital circuits. Input may range from 2.7V to
5.5V. V
CC1 must equal VCC2. Bypass capacitors
should be placed as close as possible to this pin
and be connected directly to the ground plane.
2
Vp1
Power supply for Main charge pump. Must be
V
CC.
33
CP
o1
O
Internal Main charge pump output. For
connection to a loop filter for driving the input of
an external VCO.
4
GND
Ground for Main digital circuitry.
55
f
IN1
I
Main prescaler input. Small signal input from the
VCO.
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.
TSSOP 20-Pin Package
DS101026-2
Top View
Order Number LMX2370TM, LMX2370TMX,
LMX2371TM, LMX2371TMX,
LMX2372TM or LMX2372TMX
See NS Package Number MTC20
CSP 24-Pin Package
DS101026-3
Top View
Order Number LMX2370SLBX,
LMX2371SLBX or LMX2372SLBX
See NS Package Number SLB24A
LMX2370/LMX2371/LMX2372
www.national.com
2
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