HT9015 datasheet(1/23 Pages) HOLTEK

부품명	HT9015

상세설명	RF Single Chip for Cordless Phone

PDF	23 Pages

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제조업체	HOLTEK [Holtek Semiconductor Inc]

홈페이지	http://www.holtek.com

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HT9015

RF Single Chip for Cordless Phone

1

April 10, 2000

Features

·

Operating voltage: 2.7V~6V

·

Extremely low power consumption current

-

ICC=0mA (typ.) in battery-saving mode

-

ICC= 8.5mA (typ.) in standby mode

-

ICC= 13.5mA (typ.) for communication

·

Built-in IF decoder, compander and PLL

·

IF decoder

-

1st/2nd Mixers, RX VCO

-

RSSI quadrature detector, IF AMP

-

Noise detector

·

Compander

-

Expander, Compressor, Limiter

-

Receive AMP, MIC AMP, PRE AMP

·

PLL

-

RX PLL, TX PLL

-

Local oscillator

-

Data latch control

-

Unlock detector

·

Four threshold variable battery alarms

General Description

The HT9015 is an RF single chip for cordless

phone systems. Internally these are three major

parts, a PLL, an IF decoder and a compander.

The PLL provides radio channel selection for

either the transmitter or receiver. Frequency

locking status of the selected channel can be

monitored by a control register.

The IF decoder provides two frequency down

converters that let high frequency signals pass

through a mixer and local oscillator to be low-

ered for frequency even base band signals. It

also provides an RSSI (receiver signal strength

indicator) function to detect the IF output sig-

nal strength and built-in noise detector for S/N

quality.

The compander provides better S/N ratio for

audio signal processing.

The HT9015 has a wide-range applications in

FM/FSK, Transmitting/Receiving of VHF

bandwidth including cordless phone, narrow

band voice and data transceiver systems.

The most significant advantage of the HT9015

is in the reduction of many external compo-

nents making it well suited for cordless phone

baseset, handset radio section.

Preliminary

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HT9015 데이터시트(PDF) 1 Page - Holtek Semiconductor Inc

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