- 您现在的位置：买卖IC网 > Datasheet目录396 > ATR4258-ILQH 19 (Atmel)IC RCVR AM/FM 3WIRE BUS 44SSOP Datasheet资料下载
参数资料
| 型号： | ATR4258-ILQH 19 |
| 厂商： | Atmel |
| 文件页数： | 5/38页 |
| 文件大小： | 0K |
| 描述： | IC RCVR AM/FM 3WIRE BUS 44SSOP |
| 产品变化通告： | ATR425x Obsolescence 03/Apr/2012 |
| 标准包装： | 2,000 |
| 频率： | 10.7MHz |
| 调制或协议： | AM，FM |
| 应用： | AM/FM 无线电接收器 |
| 电流 - 接收： | 45mA |
| 数据接口： | PCB，表面贴装 |
| 天线连接器： | PCB，表面贴装 |
| 电源电压： | 8 V ~ 10 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 44-SSOP（0.291"，7.40mm 宽） |
| 供应商设备封装： | 44-SSO |
| 包装： | 带卷 (TR) |
| 其它名称： | ATR4258-ILQH ATR4258-ILQH-ND |
第1页第2页第3页第4页当前第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页
ATR4258
4. Functional Description
The ATR4258 implements an AM up/down-conversion reception path from the RF input signal to
the AM-demodulated audio frequency output signal, and for FM/WB reception a double-conver-
sion reception path from the RF input signal to the FM-demodulated multiplex signal (MPX). A
VCO and an LO prescaler for AM are integrated to generate the LO frequency for the 1 st mixer.
Automatic gain control (AGC) circuits are implemented to control the preamplifier and IF stages
in the AM and FM reception path.
For improved FM performance, an integrated IF filter with adjustable bandwidth, a softmute fea-
ture and an automatic multipath noise cancellation (MNC) circuit are fully integrated. A powerful
set of sensors is provided for receiving condition analysis and stop signal generation.
Several register bits (bit 0 to bit 93) are used to control circuit operation and to adapt certain cir-
cuit parameters to the specific application. The control bits are organized in two 8-bit and three
24-bit registers that can be programmed by the 3-wire bus protocol. The bus protocol and the
bit-to-register mapping is described in the section “3-wire Bus Description” on page 20 . The
meaning of the control bits is mentioned in the following sections.
The integrated VCO has a high frequency range. Additionally the VCO has a special VCO
divider which allows (in connection with the VCO) the reception of all analog world bands.
4.1
Reception Mode
The IC can be operated in four different modes. Mode AM, FM, WB, and Standby are selected
by means of bit 92 and bit 93 according to Table 4-1 on page 6 .
Additionally to the operating modes, the signal paths can be set separately. Bit 62 selects the
first mixer and AGC, bit 63 selects the 1 st amplifier stage. The recommended settings of bit 62
and bit 63 are included in Table 4-1 on page 6 .
In AM mode the AM mixer, the AM RF-AGC and the 1 st IF AM amplifier at pin 33 are activated.
The input of the 2 nd IF amplifier is connected to pin 28 and the output of the 2 nd IF amplifier is fed
to the AM demodulator. The output of the AM demodulator is available at MPX output pin 11.
In FM mode the FM mixer, the FM RF-AGC and the 1 st IF FM amplifier at pin 38 are activated.
The bandwidth of the output tank at pin 23, pin 24 is increased and the input of the 2 nd IF ampli-
fier can be switched between pin 23 and pin 24 and pin 28. The output of the 2 nd IF amplifier is
fed to the integrated band filter and FM demodulator. The output of the FM demodulator is avail-
able at MPX output pin 11.
The WB mode is similar to the FM mode, but to reduce the bandwidth the AM IF amplifier with
the AM filter (bit 63 = 1) can be used. In WB mode the range of the integrated filter bandwidth
control is shifted to lower bandwidth and the gain of the FM demodulator is increased.
In standby mode the mixers, IF amplifiers and AGC circuits are deactivated to reduce current
consumption.
5
4838B–AUDR–05/05
相关PDF资料 |
PDF描述 |
|---|---|
| ATR7040-PVQG | IC PWR AMP 5.8GHZ WDCT 16-QFN |
| ATREB232ED-EK | AT86RF232 EVAL KIT |
| ATZB-900-B0 | KIT MOD 802.15.4/ZIGB 900MHZ RF |
| AUIRF7640S2TR1 | MOSFET N-CH 60V 77A DIRECTFET-S2 |
| AUIRF7665S2TR1 | MOSFET N-CH 100V 77A DIRECTFET2 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ATR4258-ILSH | 功能描述:射频接收器 COM.RADIO - AM/FM RECEIVER RoHS:否 制造商:Skyworks Solutions, Inc. 类型:GPS Receiver 封装 / 箱体:QFN-24 工作频率:4.092 MHz 工作电源电压:3.3 V 封装:Reel |
| ATR4258-ILSH 19 | 功能描述:IC RCVR AM/FM 3WIRE BUS 44SSOP RoHS:是 类别:RF/IF 和 RFID >> RF 接收器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS 产品变化通告:Product Discontinuation 09/Jan/2012 标准包装:50 系列:* 频率:850MHz ~ 2.175GHz 灵敏度:- 数据传输率 - 最大:- 调制或协议:- 应用:* 电流 - 接收:* 数据接口:PCB，表面贴装 存储容量:- 天线连接器:PCB，表面贴装 特点:- 电源电压:4.75 V ~ 5.25 V 工作温度:0°C ~ 85°C 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（6x6） 包装:托盘 |
| ATR4258-ILSH19 | 功能描述:射频接收器 COM.RADIO - AM/FM Receiver RoHS:否 制造商:Skyworks Solutions, Inc. 类型:GPS Receiver 封装 / 箱体:QFN-24 工作频率:4.092 MHz 工作电源电压:3.3 V 封装:Reel |
| ATR4262-EK | 功能描述:射频开发工具 Eval Board RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V |
| ATR4262M1 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Broadcast Radio Front-end IC for AM/FM/DRM/HD Radio |
发布紧急采购，3分钟左右您将得到回复。