LMX2332LSLB datasheet(2/21 Pages) NSC

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Connection Diagrams

Pin Descriptions

Pin No.

LMX233XLSLB

24-pinCSP

Package

Pin No.

LMX233XLTM

20-pin TSSOP

Package

Name

I/O

Description

CC1

—

Power supply voltage input for RF analog and RF digital circuits. Input

may range from 2.7V to 5.5V. V

CC1 must equal VCC2. 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

≥ V

CC.

o RF

Internal charge pump output. For connection to a loop filter for driving

the input of an external VCO.

GND

—

Ground for RF digital circuitry.

IN RF

RF prescaler input. Small signal input from the VCO.

IN RF

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.

GND

—

Ground for RF analog circuitry.

OSC

Oscillator input. The input has a V

CC/2 input threshold and can be

driven from an external CMOS or TTL logic gate.

GND

—

Ground for IF digital, MICROWIRE™,F

oLD, and oscillator circuits.

oLD

Multiplexed output of the RF/IF programmable or reference dividers,

RF/IF lock detect signals and Fastlock mode. CMOS output

(see

Programmable Modes).

Clock

High impedance CMOS Clock input. Data for the various counters is

clocked in on the rising edge, into the 22-bit shift register.

Data

Binary serial data input. Data entered MSB first. The last two bits are

the control bits. High impedance CMOS input.

Chip Scale Package (SLB)

(Top View)

DS012806-39

Order Number LMX2330LSLB, LMX2331LSLB or

LMX2332LSLB

NS Package Number SLB24A

Thin Shrink Small Outline Package (TM)

(Top View)

DS012806-2

Order Number LMX2330LTM, LMX2331LTM or

LMX2332LTM

NS Package Number MTC20

LMX2332LSLB Datasheet(PDF) 2 Page - National Semiconductor (TI)

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