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RTC6685, RTC6689H, RTC6701

Table of contents:
Info of RTC6685
Info of RTC6689H
Info of RTC6701

RTC6685, RTC6689H, RTC6701 Selling Leads, Datasheet

MFG:RICHWAVE Package Cooled:QFN D/C:0911NOPB

RTC6685, RTC6689H, RTC6701 Datasheet download

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Part Number: RTC6685

MFG: RICHWAVE

Package Cooled: QFN

D/C: 0911NOPB

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RTC6701 General Description

The RTC6701 is a FM/FSK transmitter intended for application on 2.4GHz ISM band analog FM r digital FSK transmission. The chip includes a RF modulator, two channels of audio modulator nd a power amplifier with up to +11.5dBm power output. The RF modulator block, which is requency-synthesizer based with an integrated 2.4GHz VCO, generates the 2.4GHz FM signal odulated from stereo audio L(left)/R(left) signals. On-chip two audio modulators with stereo
audio input signals provide the FM audio modulated signal at 6 MHz and 6.5MHz, respectively. onaural application is also possible by turning off one of two audio modulators.

Transmission frequency can be set by internal register via SPI programming, or by selecting mong 4 fixed channels using three dedicated pins. Output power of +1.5dBm or +11.5dBm can e configured via pins 28 and 29 to fit CE/FCC requirement easily. The device is available in a 2-pin QFN package.

RTC6701 Maximum Ratings

SYMBOL	PARAMETER	Ratings	UNIT
Tstr	Storage Temperature Range	-65 to +150	°C
Totr	Operating Temperature Range	-40 to +85	°C
Vdd	Supply Voltage	-0.5 to +5	V
Vlog	Logic control signal	-0.5 to +5	V
VRX	RX input	-2 to +2	V

The maximum rating must not be exceeded at any time. Do not operate the device under conditions outside the above Ratings.

RTC6701 Features

3.3V power supply
2.4GHz ISM band FM modulator
FM/FSK transmitter operation
Simple three digital pins setting 4 fixed channels to eliminate external micro-controller
Output Power +1.5dBm or +11.5dBm, selected by pin connection
FM sound carriers at 6 and 6.5MHz
CMOS technology
On-chip VCO and PLL
Transmitter frequency programmability by SPI
32-pin leadless QFN package

RTC6701 Typical Application

AV Sender
FSK transmitter
Baby Monitor
Wireless Camera
Wireless Audio
Wireless Earphone

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