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PDF ( 数据手册 , 数据表 ) U4286BM-BFPG3

零件编号 U4286BM-BFPG3
描述 AM / FM-PLL
制造商 TEMIC Semiconductors
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U4286BM-BFPG3 数据手册, 描述, 功能
TELEFUNKEN Semiconductors
U4286BM
AM / FM-PLL
Description
The U4286BM is an integrated circuit in BICMOS
technology for frequency synthesizer. It performs all the
functions of a PLL radio tuning system and is controlled
by I2C bus. The device is designed for all frequency
synthesizer applications of radio receivers, as well as
RDS ( Radio Data System ) applications.
Features
D Reference oscillator up to 15 MHz
D Two programmable 16 bit dividers
adjustable from 2 to 65535
yD Fine tuning steps: AM 1 kHz
yFM 2 kHz
D Two programmable switching outputs (open drain up
to 20 V)
D Few external component requirements due to
integrated loop-transistor for AM/FM
D High signal/ noise ratio
Block Diagram
OSCIN
OSCOUT
14
Oscillator
15
R–Divider
SWO 1 SWO 2
56
Switching outputs
SCL
SDA
AS
2
3
4
I2C–BUS
Interface
FMOSC 7 Preamplifier : 2
Latch
Shift register
Latch
Latch
Status
Phase
detector
9
AMOSC
Preamplifier
AM/FM
switch
8
GND 2
N–Divider
1
VDD
16
GND 1
11
Current
sources
12
10
Analogue
outputs 13
PDFM
PDAM
PDFMO
PDAMO
93 7581 e
Figure 1.
Rev. A1: 19.08.1996
Preliminary Information
1 (9)







U4286BM-BFPG3 pdf, 数据表
U4286BM
Ordering and Package Information
Extended Type Number
U4286BM-BFP
U4286BM-BFPG3
Package
SO16 plastic
SO16 plastic
Dimensions in mm
Package: SO16
TELEFUNKEN Semiconductors
Remarks
Taping according to
IEC-286-3
8 (9)
Preliminary Information
Rev. A1: 19.08.1996














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