单芯片立体声收音ic bk1080
| 品牌 |
beken博通 |
型号 |
bk1080 |
| 封装 |
sop-16/qfn-16 |
批号 |
2010+ |
| 营销方式 |
现货 |
产品性质 |
热销 |
| 处理信号 |
模拟信号 |
工艺 |
半导体集成 |
| 导电类型 |
双极型 |
集成程度 |
小规模 |
| 工作温度 |
-40~125（℃） |
类型 |
其他ic |
一、 产品概述：
1080全数字单晶片集成电路。接收灵敏度高、if中频选择性好、通用i2c总线控制、搜台速度快、内置功放电路、外围元件少、噪声系数极小。具有体积小、低功耗、低成本、应用简单、使用范围广等优点。是一款简单易用且具极高性价比的单芯片fm立体声收音芯片。
二. 功能特点：
a,灵敏度高、噪声小、抗干扰能力强、外接元件极少、使用极其简单。
b, i2c串行数据总线接口通讯。
c, 采用先进的seek硬件搜台方式，全频段搜索只需4-5sec，大幅提高搜台速度。
d, 内置ldo调整、低功耗、超宽电压使用范围（2.8-5.5vdc）。
g, 内置噪声消除、软静音、低音增强电路设计。
h, fm及mpx立体声采用dsp处理器。
i, 内置功放,可以驱动负载为32欧的耳机.
1 general description
the bk1080 fm receiver employs a
low-if architecture, mixed signal image
rejection and all digital demodulation
technology. the station scan of bk1080
searches radio stations based on both the
channel rssi estimation and signal
quality assessment, increases the number
of receivable stations while avoids false
stops. bk1080 enables fm radio
reception with low power, small board
space and minimum number of external
components.
all functions are controlled through a
simple 3-wire serial interface or i2c
serial interface. the device operates
from a power supply of 2.7 – 5.5 volts.
the bk1080 is available in a 24-pin 4x4
mm qfn package.
2 features
z support 76~108 mhz band
z automatic gain control
z automatic frequency control
z seek tuning
z receive signal strength indicator
z channel quality assessment
z stereo decoder
z automatic stereo/mono switching
z automatic noise suppression
z 50us/75us de-emphasis
z 2.7 ~ 5.5 v supply voltage
z active current 19 ma
z 32.768 khz,12mhz,24mhz,13mhz,
26mhz,19.2mhz and 38.4mhz
reference clock
z i2c and 3-wires control interface
z 4x4 mm 24-pin qfn package
3 applications
z cellular handset
z mp3 player
z pdas and notebook