|
|
零件编号 | BK1088 | ||
描述 | (BK1086 / BK1088) BROADCAST AM/FM/SW/LW RADIO RECEIVER | ||
制造商 | BEKEN | ||
LOGO | |||
1 Page
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
Applications
Table and portable radios
CD/DVD players
Modules
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.
24 23 22 21 20 19
GND 1
18 VA
FMI 2
RFGND 3
GND PAD
17 GND
16 LOUT
AMI 4
BK1086/88
15 ROUT
GND 5
14 GND
NC 6
13 VD
7 8 9 10 11 12
QFN 24 Pin Assignments (Top View)
Functional Block Diagram
FM ANT
FM LNA
MIXER
RFGND
AM LNA
MIXER
I
PGA
Q
PGA
ADC
ADC
RDS
DSP
DAC LOUT
DAC ROUT
32.768KHz
VDD
AUTO
TUNE
0/90
DPLL
APLL
REG BK1086/88
GPIO
SDIO
SEN
SCLK
VIO
Rev.1.0
Copyright©2010 by Beken Corporation
BK1086/88
Beken Confidential. Information contained herein is covered under non-disclosure agreement (NDA).
Free Datasheet http://www.datasheet4u.net/
BK1086/88
3 Design Specification
3.1 Recommended Operating Conditions
Table 1 Recommended Operating Conditions
Parameter
Symbol
Test Condition Min Typ Max Unit
Digital Supply Voltage
VD
2.4 — 5.5
V
Analog Supply Voltage
VA
2.4 — 5.5
V
Interface Supply Voltage
VIO
1.6 — 3.6
V
Ambient Temperature
TA
–20 25 85 °C
Notes:
All minimum and maximum specifications are guaranteed and apply across the recommended operating conditions. Typical values
apply at VD = VA = 3.3 V and 25 °C unless otherwise stated. Parameters are tested in production unless otherwise stated.
3.2 Power Consumption Specification
Table 2 Power Consumption Specification
Parameter
Supply Current (FM Mode)
Supply Current (AM Mode)
Power down Current
Interface Power down Current
Symbol
IS
IS
IPD
IpIO
Test Condition
ENABLE = 1
DISABLE = 0
ENABLE = 1
DISABLE = 0
ENABLE = 0
DISABLE = 1
SCLK, RCLK inactive
ENABLE = 0
Min
—
—
—
—
Typ
25
24
10
1.9
Max
27
26
20
5
Unit
mA
mA
μA
μA
Proprietary and Confidential
Page 8 of 30
Free Datasheet http://www.datasheet4u.net/
[4:0]
VOLUME
[4:0]
5’h1f
BK1086/88
AM: 0: 1e3
FM: 0: 10e3
1: 5e3
1: 50e3
2: 9e3
2: 100e3
3: 10e3
3: 200e3
Volume
0x00 is the lowest and 0x1F is highest (0dBFS). 2dB each
Register 06h. System Configuration3 (0x01ef)
BIT
[15:14]
[13:12]
[11]
[10:4]
[3:0]
NAME
SMUTER[1:0]
SMUTEA[1:0]
CLKSEL
SKSNR[6:0]
SKCNT[3:0]
DEFAULT
2’h0
2’h0
1’h0
7’h1e
4’hf
DESCRIPTION
Soft mute Attack/Recover Rate
00 = fastest
01 = fast
10 = slow
11= slowest
Soft mute Attenuation.
00 = 16db.
01 = 14db
10 = 12db,
11 = 10db
Clock Select
0 = External clock input,
1= Internal oscillator input.
Seek SNR Threshold.
Required channel SNR for a valid seek channel
Seek Impulse Detection Threshold
Allowable number of impulse for a valid seek channel while
setting all zeros means not use Impulse number to judge the
channel’s validity.
Register 07h. Test1 (0x0900)
BIT
[15:14]
[13]
[12]
[11]
[10]
[9:8]
NAME
Reserved
MODE
SIQ
IMPEN
BPDE
IMPTH[1:0]
DEFAULT
2’h0
1’h0
1’h0
1’h1
1’h0
2’h1
DESCRIPTION
Reserved
Receiver Mode Select
0 = FM receiver
1 = AM receiver
IF I/Q Signal switch.
0 = Normal operation
1 = Reversed I/Q signal
Impulse Remove Enable
0 = Disable
1 = Enable
De-emphasis Bypass
0 = Normal operation
1 = Bypass de-emphasis
Threshold of Impulse Detect.
00 = toughest
Proprietary and Confidential
Page 16 of 30
Free Datasheet http://www.datasheet4u.net/
|
|||
页数 | 30 页 | ||
下载 | [ BK1088.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
BK1080 | FM Receiver IC | BEKEN |
BK1081 | FM STEREO TRANSMITTER | Beken |
BK1085 | FM STEREO TRANSMITTER | Beken |
BK1086 | (BK1086 / BK1088) BROADCAST AM/FM/SW/LW RADIO RECEIVER | BEKEN |
零件编号 | 描述 | 制造商 |
STK15C88 | 256-Kbit (32 K x 8) PowerStore nvSRAM | Cypress Semiconductor |
NJM4556 | DUAL HIGH CURRENT OPERATIONAL AMPLIFIER | New Japan Radio |
EL1118-G | 5 PIN LONG CREEPAGE SOP PHOTOTRANSISTOR PHOTOCOUPLER | Everlight |
DataSheet8.cn | 2020 | 联系我们 | 搜索 | Simemap |