LND-TRN902 データシートの表示（PDF） - Linear Dimensions Semiconductor

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LND-TRN902

PLL-FREQUENCY SYNTHESIZER

Linear Dimensions Semiconductor 

DATA SHEET

LND-TRN902

PLL-FREQUENCY SYNTHESIZER

LND-TRN902

PLL-FREQUENCY SYNTHESIZER

Block Diagram

DATA

CLK

EN

SERIAL

CONTROL

LOGIC

RFI

16 BIT

R

COUNTER

DRFI

PHASE

7 BIT

A

COUNTER

DETECTOR

MODULUS

VFI

CONTROL

14 BIT

CHARGE

N

COUNTER

DVFI

ANALOG

CONTROL

LOGIC

PUMP

Features

• Low operating curremt consumption

(typical 4 mA)

• High input sensetivity, high input

frequencies ( 50 MHz)

• Synchronous programming of the

counters (n-, n/a, r-counters)

• Switchable modulus trigger edge

• Large dividing ratios for small channel

spacing

A counter 0 to 127

N counter 3 to 16,380

R counter 3 to 65,535

• Serial control:

• 3-wire bus: data, clock (<10 MHz), enable

• Switchable polarity and programmable

phase detector current

• 2 programmable outputs

• Digital phase detector output signals (e.g.

for external charge pump)

• DRFIN, DVFI outputs (e.g. for prescalar

standby)

• External current setting for PD output

PD • Lock detect outpuut with gated anti-backlash

pulse (quasi digital lock detect)

• ESD protection in accordance with MIL-

PO1

STDs

LOCK

LD

DETECT

PO2

VDD VSS AVDD AVSS

MOD

Linear Dimensions, Inc. 445 East Ohio Street, Chicago, IL 60611 p 312.3211810 f 312.321.1830

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