BK1086/88
BROADCAST AM/FM/SW/LW RADIO RECEIVER
Features
Worldwide 64~108 MHz FM band support Worldwide 520~1710kHz A...
BK1086/88
BROADCAST AM/FM/SW/LW RADIO RECEIVER
Features
Worldwide 64~108 MHz FM band support Worldwide 520~1710kHz AM band support SW band support(2.3-21.85MHz, BK1088 only) LW band support(153-279kHz,BK1088 only) Automatic gain control(AGC) Automatic frequency control(AFC) Digital FM stereo decoder Automatic FM stereo/mono blend Automatic noise suppression 50us/75us de-emphasis RDS/RBDS decoder 2.4 ~ 5.5 V supply
voltage Wide range reference clock support 32.768KHz crystal oscillator 4x4 mm 24-pin QFN package
GPIO1 GPIO2 20 GPIO3 19 18 VA 17 GND GND PAD BK1086/88 16 LOUT 15 ROUT 14 GND 13 VD 7 MODE 8
SEN
GND
NC 23
24 GND FMI RFGND AMI GND NC 1 2 3 4 5 6
22
NC 9 SCLK
21
10 SDIO
11 RCLK
12 VIO
QFN 24 Pin Assignments (Top View)
Applications
Table and portable radios CD/DVD players Modules
Functional Block Diagram
FM ANT
MIXER FM LNA RDS
General Description
The BK1086/88 AM/FM receiver employs a low-IF architecture, mixed signal image rejection and all digital demodulation technology. The station scan of BK1086/88 searches radio stations based on both the channel RSSI estimation and signal quality assessment, increases the number of receivable stations while avoids false stops. BK1086/88 enables FM/AM/SW/LW radio reception with low power, small board space and minimum number of external component.
MW ANT RFGND
MIXER AM LNA PGA PGA
I Q
ADC
DAC
LOUT ROUT
DSP
ADC DAC
AUTO TUNE
32.768KHz
0/90
GPIO
SDIO SEN SCLK VIO
VDD
REG
...