LMX2330-332A NSC [National Semiconductor], LMX2330-332A Datasheet - Page 2

• Manufacturer Part Number: LMX2330-332A
• Manufacturer: NSC [National Semiconductor]

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Connection Diagram
Pin Description
Pin
No.
10
11
12
13
14
15
16
17
18
19
1
2
3
4
5
6
7
8
9
D
Name
f
f
OSC
Clock
V
F
D
GND
IN
IN
GND
GND
GND
f
f
GND
Data
V
IN
IN
V
Pin
o
o
LE
CC
o
P
P
LD
RF
RF
RF
IF
IF
IF
1
2
1
in
I/O
—
—
—
—
—
—
—
—
O
O
O
I
I
I
I
I
I
I
I
Power supply voltage input for RF analog and RF digital circuits. Input may range from 2.7V to
5.5V. V
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
or TTL logic gate.
Ground for IF digital, MICROWIRE
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 complementry 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
Order Number LMX2330ATM, LMX2331ATM or LMX2332ATM
CC
1 must equal V
Thin Shrink Small Outline Package (TM)
NS Package Number MTC20
CC
2. Bypass capacitors should be placed as close as possible to this
2
CC
™
, F
/2 input threshold and can be driven from an external CMOS
o
LD, and oscillator circuits.
o
LD, and oscillator circuits.
Description
DS012331-2
V
V
CC
CC
.
.