HPLL-8001 Datasheet

IC型號(hào)：
HPLL-8001
PDF描述：
PLL Frequency Synthesizer (92K in pdf)
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12頁(yè)
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PLL Frequency Synthesizer

Technical Data

HPLL-8001

Features

鈥?Low Operating Current

Consumption (4 mA, typ.)

鈥?High Input Sensitivity, High

Input Frequencies (50 MHz)

鈥?Synchronous Programming of

the Counters (n-, n/a-,

r-counters)

鈥?Switchable Modulus Trigger

Edge

鈥?Large Dividing Ratios for

Small Channel Spacing,

A counter 0 to 127, N counter

3 to 16,380, R counter 3 to

65,535

鈥?Serial Control 3-wire Bus:

Data, Clock (<10 MHz), Enable

鈥?Switchable Polarity and

Programmable Phase Detector

Current

鈥?2 Programmable Outputs

鈥?Digital Phase Detector

Output Signals (e.g. for

External Charge Pump)

鈥?DRFI, DVFI Outputs (e.g. for

Prescaler Standby)

鈥?Lock Detect Output with

Gated Anti-backlash Pulse

(quasi digital lock detect)

Plastic SOP-14

800 LL

YY 1

Description

The HPLL-8001 is a phase-locked

loop (PLL) frequency synthesizer

intended for use in a frequency

generation loop with an external

dual modulus prescaler and VCO.

The VCO frequency is divided by

the dual modulus prescaler, which

is then fed to the internal A and N

counters. The reference frequency

is fed to an internal R counter to

define the channel spacing. Both

frequencies are compared in the

phase detector which drives the

charge pump. A lock detect is

provided to monitor the lock state

of the loop. All blocks are

programmed by a serial 3-wire

bus interface.

Pin Configuration

REFI

HPLL

8001

YYWW

VSS

DATA

CLK

VDD

MOD

PO2

PO1

AVDD

AVSS

VCOI

Functional Block Diagram

DATA

CLOCK

ENABLE

Serial

Control Logic

16 bit R

counter

7 bit A

counter

VCOI

14 bit N

counter

Analog

Control

Logic

VDD VSS AVDD AVSS

MOD

DRFI

Phase

PO1

Detector

Modulus

Control

DVFI

Charge

Pump

PO2

Lock

Detect

REFI

Applications

鈥?GSM Handsets and Base

Stations

鈥?PCS/PCN

鈥?DECT

鈥?Wireless LAN

型號(hào)

版本

描述

廠商

下載
HPLL-8001

英文版

PLL Frequency Synthesizer (92K in pdf)

ETC

HPLL-8001
HPLL-8001-...

英文版

Serial-Input Frequency Synthesizer

ETC

HPLL-8001-TR1

HPLL-8001 Datasheet

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