LMX2332L National Semiconductor, LMX2332L Datasheet - Page 3

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LMX2332L

Manufacturer Part Number
LMX2332L
Description
(LMX2330L - LMX2332L) PLLatinumTM Low Power Dual Frequency Synthesizer
Manufacturer
National Semiconductor
Datasheet

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LMX233XLSLD
CSP Package
20-pin Thin
Pin Descriptions
Pin No.
www.DataSheet4U.com
20
10
11
12
13
14
15
16
17
18
19
1
2
3
4
5
6
7
8
9
X
LMX233XLSLB
24-pin CSP
1, 9, 13, 21
Package
Pin No.
24
10
11
12
14
15
16
17
18
19
20
22
23
2
3
4
5
6
7
8
20-pin TSSOP
LMX233XLTM
Package
Pin No.
10
11
12
13
14
15
16
17
18
19
20
X
1
2
3
4
5
6
7
8
9
V
V
D
GND
f
f
GND
OSC
GND
F
Clock
Data
LE
GND
f
f
GND
D
V
V
NC
IN
IN
IN
IN
Name
CC
P
o
P
CC
o
o
Pin
LD
1
2
RF
RF
IF
RF
RF
IF
1
2
in
I/O
O
O
O
I
I
I
I
I
I
I
I
3
Power supply voltage input for RF analog and RF digital circuits.
Input may range from 2.7V to 5.5V. V
Bypass capacitors should be placed as close as possible to this
pin and be connected directly to the ground plane.
Power Supply for RF charge pump. Must be
Internal charge pump output. For connection to a loop filter for
driving the input of an external VCO.
Ground for RF digital circuitry.
RF prescaler input. Small signal input from the VCO.
RF 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.
Ground for RF analog circuitry.
Oscillator input. The input has a V
be driven from an external CMOS or TTL logic gate.
Ground for IF digital, MICROWIRE
circuits.
Multiplexed output of the RF/IF programmable or reference
dividers, RF/IF lock detect signals and Fastlock mode. CMOS
output (see Programmable Modes).
High impedance CMOS Clock input. Data for the various
counters is clocked in on the rising edge, into the 22-bit shift
register.
Binary serial data input. Data entered MSB first. The last two bits
are the control bits. High impedance CMOS input.
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).
Ground for IF analog circuitry.
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.
IF prescaler input. Small signal input from the VCO.
Ground for IF digital, MICROWIRE, F
IF charge pump output. For connection to a loop filter for driving
the input of an external VCO.
Power Supply for IF charge pump. Must be
Power supply voltage input for IF analog, IF digital,
MICROWIRE, F
2.7V to 5.5V. V
be placed as close as possible to this pin and be connected
directly to the ground plane.
No connect.
CC
o
LD, and oscillator circuits. Input may range from
2 must equal V
Description
CC
CC
1. Bypass capacitors should
/2 input threshold and can
, F
o
CC
LD, and oscillator circuits.
o
1 must equal V
LD, and oscillator
V
V
CC
CC
.
.
www.national.com
CC
2.

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