Datasheet > QN8027

QN8027

更新时间： 2024-11-12 11:46:23

品牌	Logo	应用领域
昆腾 - QUANTUM		发射机便携式便携式设备
页数	文件大小	规格书
29页	993K
描述
High Performance Digital FM Transmitter for Portable Devices

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QN8027 数据手册

QN8027

High Performance Digital FM Transmitter for Portable Devices

________ General Description ________ ___________ Key Features __________

• Worldwide FM Band Transmit

The QN8027 is a high performance, low power, full-

featured single-chip stereo FM transmitter designed for

portable audio/video players, automotive accessories, cell

phones, and GPS personal navigation devices. The

QN8027 covers frequencies from 76 MHz to 108 MHz in

50/100/200 kHz step sizes for worldwide FM band support.

The QN8027 also supports RDS/RBDS data transmit.

• 76 MHz to 108 MHz full band tuning in

50/100/200 kHz step sizes

• 50/75μs pre-emphasis

• Ease of Integration

• Small footprint, 3 x 3 x 0.95mm MSOP10

• Only 2 external passive components required

• Adaptive antenna tuning

• Low cellular and GPS band spurs

• High Immunity to TDMA (GSM/GPRS) burst noise

• Multiple crystal frequencies supported

• I²C interface

The QN8027 integrates a complete transmitter function,

from stereo audio input to RF antenna port, for worldwide

FM band personal area broadcasting. It includes variable

input gain programming, selectable pre-emphasis, precision

low-spur MPX stereo encoding and pilot tone generation,

low-noise PLL-based modulation, and an on-chip power

amplifier with variable output level and RF band-pass

filtering to ensure optimum transmit spectrum purity.

• Low Power Consumption

• 7.0 mA of FCC output level

An integrated crystal oscillator and on-chip digital

calibration circuits eliminate external tuning components

and enable tuning-free manufacturing. Support for

12/24MHz reference clocks allows the chip to use readily

available system clocks. Integrated saturation detection and

a programmable audio interface eliminate distortion,

optimize audio fidelity, and support a wide range of input

audio levels. A low power IDLE mode extends battery life.

An integrated LDO enables direct connection to the battery

and provides high PSRR for superior noise suppression, in

particular TDMA noise from GSM/GPRS phones.

• Integrated voltage regulator, direct connect to battery

• Power saving IDLE mode

• High Performance FM Transmitter (FMT)

• 65dB Stereo SNR, 0.04% THD

• Maximum 119 dBuVp RF output level with 42dB

adjustable range

• Automatic Input Audio Sensing

• RF power automatically turned off if no input

audio signal for 60s

The QN8027’s small footprint, high integration with

minimum external component count, and support for

12/24MHz clock frequencies make it easy to integrate into

• RDS/RBDS Transmit

• Supports US and European data service,

variety of small form-factor low-power portable

including TMC (Traffic Messaging Channel)

applications. Integrated low-phase noise digital

synthesizers and extensive on-chip auto calibration ensures

robust consistent performance over temperature and

process variations. An integrated voltage regulator enables

direct connection to a battery and provides high PSRR for

superior noise suppression. A low-power IDLE mode

extends battery life.

• Robust Operation

• -25⁰C to +85⁰C operation

• ESD protection on all input and output pads

ESD protection is on all pins. The QN8027 is fabricated in

highly reliable CMOS technology.

_____________________________ Typical Applications __________________________

Cell Phones / PDAs / Smart Phones

Portable Audio & Media Players

GPS Personal Navigation Devices

Automotive and Accessories

Rev 1.1 (04/10)

Page 1

Confidential Information contained herein is covered under Non-Disclosure Agreement (NDA).

12 3 4 5 6 7...29

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与QN8027相关器件

型号	品牌	获取价格	描述	数据表
QN8035	QUANTUM	获取价格	Single-Chip Low-Power FM Receiver for Portable Devices
QN8041AH	INTEL	获取价格	Microcontroller, 8-Bit, MROM, 8048 CPU, 0.833MHz, NMOS, PQCC44, PLASTIC, LCC-44
QN8042AH	INTEL	获取价格	Microcontroller, 8-Bit, MROM, 8048 CPU, 0.833MHz, NMOS, PQCC44, PLASTIC, LCC-44
QN8096-90	ETC	获取价格	16-Bit Microcontroller
QN8096BH	INTEL	获取价格	Microcontroller, 16-Bit, 8096 CPU, 12MHz, CMOS, PQCC68
QN8097-90	ETC	获取价格	16-Bit Microcontroller
QN8097BH	INTEL	获取价格	Microcontroller, 16-Bit, 8096 CPU, 12MHz, CMOS, PQCC68
QN80C188-10	INTEL	获取价格	RISC Microprocessor, 16-Bit, 10MHz, CMOS, PQCC68
QN80C188-12	INTEL	获取价格	RISC Microprocessor, 16-Bit, 12.5MHz, CMOS, PQCC68
QN80C188-16	INTEL	获取价格	RISC Microprocessor, 16-Bit, 16MHz, CMOS, PQCC68

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