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LMX2377U Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. LMX2377U
Description  PLLatinum™ Ultra Low Power Dual Frequency Synthesizer for RF Personal Communications
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
Logo NSC - National Semiconductor (TI)

LMX2377U Datasheet(HTML) 3 Page - National Semiconductor (TI)

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