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LMX2346 Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. LMX2346
Description  PLLatinum™ Frequency Synthesizer for RF Personal Communications
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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LMX2346 Datasheet(HTML) 3 Page - National Semiconductor (TI)

 
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Pin Descriptions (Continued)
Pin Name
Pin Number
I/O
Description
I/O Circuit Configuration
16-Pin
CSP
16-Pin
TSSOP
F
INB
5
7
I
RF prescaler complementary input. For
single ended operation, this pin should be
AC grounded. The LMX2346/7 can be
driven differentially when a bypass
capacitor is omitted.
F
IN
6
8
I
RF PLL prescaler input. Small signal
input from the VCO.
CLOCK
8
9
I
High impedance CMOS Clock input. Data
is clocked in on the rising edge, into the
18-bit shift register.
DATA
9
10
I
Binary serial data input. Data entered
MSB first. LSB is control bit. High
impedance CMOS input.
LE
10
11
I
Latch Enable input. When Latch Enable
transitions HIGH, data stored in the 18-bit
shift register is loaded into one of the 2
control registers, based on the address
bit. High impendance CMOS input.
CE
11
12
I
Chip Enable input. Provides logical
power-down control of the device. Pull-up
to V
CC if unused. High impedance CMOS
input.
www.national.com
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