lmx2377u National Semiconductor Corporation, lmx2377u Datasheet - Page 3

• Manufacturer Part Number: lmx2377u
• Description: Lmx2377u Pllatinum? Ultra Low Power Dual Frequency Synthesizer For Rf Personal Communications 2.5 Ghz/1.2 Ghz
• Manufacturer: National Semiconductor Corporation

V
D
f
IN
Name
P
o
GND
Connection Diagrams
Pin Descriptions
V
Pin
Main
Main
Main
CC
20-Pin UTCSP
Thin Shrink Small Outline Package (TM)
Ultra Thin Chip Scale Package (SLE)
Pin No.
20
1
2
3
4
(Top View)
(Top View)
24-Pin CSP
Pin No.
24
2
3
4
5
Pin No.
TSSOP
20-Pin
20022602
1
2
3
4
5
20022696
I/O
— Power supply bias for the Main PLL analog and digital circuits. V
— Main PLL charge pump power supply. Must be ≥ V
— Ground for the Main PLL digital circuitry.
O
I
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.
Main PLL charge pump output. The output is connected to the
external loop filter, which drives the input of the VCO.
Main PLL prescaler input. Small signal input from the VCO.
3
Chip Scale Package (SLB)
Description
(Top View)
20022603
CC
.
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CC