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零件编号 | BK1089 | ||
描述 | SINGLE-CHIP BROADCAST FM RADIO RECEIVER | ||
制造商 | BEKEN | ||
LOGO | |||
1 Page
BK1089
SINGLE-CHIP BROADCAST FM RADIO RECEIVER
Features
Support 64~108 MHz band 1
Automatic gain control(AGC)
Automatic frequency control(AFC)
Seek tuning
Channel quality assessment
Digital FM stereo decoder
Automatic stereo/mono switching
Automatic noise suppression
75us de-emphasis
2.3 ~ 5.5 V supply voltage
Active current 22 mA
32.768KHz crystal oscillator
4x4 mm 24-pin QFN package and 16-pin
SOP package
Notes
1. Band is selected by internal bonding ,
default is 87.5-108MHz.
Applications
Toys
24 23 22 21 20 19
GND 1
18 VA
FMIN 2
17 GND
GND 3
FMIP 4
(BK1089)
GND
16 LOUT
15 ROUT
GND 5
14 GND
VUP 6
13 VD
7 8 9 10 11 12
QFN 24 Pin Assignments (Top View)
GND 1
GND 2
FMIN 3
GND 4
VUP 5
VDM 6
SUP 7
SDM 8
BK1089
16 PWD
15 VDD
14 GND
13 LOUT
12 ROUT
11 VDD
10 AMODE
9 RCLK
General Description
The BK1089 single-chip FM receiver employs
a low-IF architecture, mixed signal image
rejection and all digital demodulation
technology. The station scan of BK1089
searches radio stations based on both the
channel RSSI estimation and signal quality
assessment, increases the number of receivable
stations while avoids false stops. BK1089
enables FM radio reception with low power,
small board space and minimum number of
external components.
SOP 16 Pin Assignments (Top View)
Functional Block Diagram
FMIN
FMIP
32.768KHz
RCLK
2.2-3.6 V
VDD
LNA PGA
RF/Analog
APLL
ADC
AGC
FM
DEMOD
Stereo Decoder
DPLL
Tuning system
REG
BK1089
DAC
LOUT
DAC
ROUT
GPIO
ST
STC
VL
Interface
VUP
VDM
SUP
SDM
RST
PWD
Preliminary Rev.0.2
Copyright©2010 by Beken Corporation
BK1089
Beken Confidential. Information contained herein is covered under non-disclosure agreement (NDA).
BK1089
GND 1
GND 2
FMIN 3
GND 4
VUP 5
VDM 6
SUP 7
SDM 8
BK1089
16 PWD
15 VDD
14 GND
13 LOUT
12 ROUT
11 VDD
10 AMODE
9 RCLK
Figure 3 Pin assignment for BK1089 SOP16 package (top view)
Table 5 BK1089 SOP16 pin assignment
Pin Number(s) Name
Type Description
1,2,4,11,14
GND
GND Ground. Connect to ground plane on PCB
3
FMIN
RF FM RF input
5
VUP
I Volume up. Negative pulse trigger
6
VDM
I Volume down. Negative pulse trigger
7 SUP I Seek up. Negative pulse trigger
8
SDM
I Seek down. Negative pulse trigger
9
RCLK
I 32.768kHz reference input/32.768kHz crystal
10
AMODE
I Audio output mode selection, high volumn mode = 0
11,15
12
13
VDD
ROUT1
LOUT1
P Power supply
AC Right audio output.
AC Left audio output.
16
PWD
I Global power down when PWD=1
Notes:
1. When use speaker mode, ROUT and LOUT are defined as the differential mono audio signal.
Proprietary and Confidential
Page 8 of 14
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页数 | 14 页 | ||
下载 | [ BK1089.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
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