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LMX2330L Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. LMX2330L
Description  PLLatinum™ Low Power Dual Frequency Synthesizer for RF Personal Communications
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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LMX2330L Datasheet(HTML) 3 Page - National Semiconductor (TI)

 
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Pin Descriptions (Continued)
Pin No.
LMX233XLSLB
24-pinCSP
Package
Pin No.
LMX233XLTM
20-pin TSSOP
Package
Pin
Name
I/O
Description
15
13
LE
I
Load enable high impedance CMOS input. When LE goes HIGH, data
stored in the shift registers is loaded into one of the 4 appropriate
latches (control bit dependent).
16
14
GND
Ground for IF analog circuitry.
17
15
f
IN IF
I
IF prescaler complementary input. A bypass capacitor should be placed
as close as possible to this pin and be connected directly to the ground
plane. Capacitor is optional with some loss of sensitivity.
18
16
f
IN IF
I
IF prescaler input. Small signal input from the VCO.
19
17
GND
Ground for IF digital, MICROWIRE, F
oLD, and oscillator circuits.
20
18
D
o IF
O
IF charge pump output. For connection to a loop filter for driving the
input of an external VCO.
22
19
V
P2
Power Supply for IF charge pump. Must be
≥ V
CC.
23
20
V
CC2
Power supply voltage input for IF analog, IF digital, MICROWIRE,
F
oLD, and oscillator circuits. Input may range from 2.7V to 5.5V. VCC2
must equal V
CC1. Bypass capacitors should be placed as close as
possible to this pin and be connected directly to the ground plane.
1, 9, 13, 21
X
NC
No connect.
www.national.com
3


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