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U4286BM-BFPG3 の電気的特性と機能

U4286BM-BFPG3のメーカーはTEMIC Semiconductorsです、この部品の機能は「AM / FM-PLL」です。


製品の詳細 ( Datasheet PDF )

部品番号 U4286BM-BFPG3
部品説明 AM / FM-PLL
メーカ TEMIC Semiconductors
ロゴ TEMIC Semiconductors ロゴ 




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U4286BM-BFPG3 Datasheet, U4286BM-BFPG3 PDF,ピン配置, 機能
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)

1 Page





U4286BM-BFPG3 pdf, ピン配列
TELEFUNKEN Semiconductors
U4286BM
Bit Organisation
Module address
MSB
LSB
1 1 0 0 1 0 0/1 0
A7 A6 A5 A4 A3 A2 A1 A0
Subaddress (R-divider)
X X X X 0 1 XX
Subaddress (N-divider)
X X X X 1 1 XX
Data byte 0 (Status)
MSB
X SWO1 SWO2
D7 D6 D5
X
D4
LSB
AM/ PD PD PD
FM ANA POL CUR
D3 D2 D1 D0
Data byte 1
215
R-divider
28
Data byte 2
27
R-divider
20
Data byte 3
215
N-divider
28
Data byte 4
27
N-divider
20
AM/FM
PD – ANA
PD – POL
PD – CUR
LOW
FM-operation
PD analogue
Negative polarity
Output current 2
Figure 2.
HIGH
AM-operation
TEST
Positive polarity
Output current 1
Rev. A1: 19.08.1996
Preliminary Information
3 (9)


3Pages


U4286BM-BFPG3 電子部品, 半導体
U4286BM
Parameters
Setup Time
Start condition
Data
Stop condition
Time the bus must be free
before a new transmission
can be started
Hold time
Start condition
DATA
Bus Timing
TELEFUNKEN Semiconductors
Test Conditions / Pins Symbol Min. Typ. Max. Unit
tsSTA
tsDAT
tsSTOP
twSTA
4.7
250
4.7
4.7
ms
ns
ms
ms
thSTA
thDAT
4.0
0
ms
ms
SDA
twSTA
tr tf
thSTA
SCL
P S thSTA tL
thDAT
tH tsSTA
P = Stop, S = Start
Figure 4.
thDAT
tsSTOP P
93 7671 e
The Following Hints are Recommended:
D C3 = 100 nF should be very close to Pin 1 (VDD) and
Pin 16 (GND 1)
D GND 2 (Pin 8 – analog ground) and GND 1 (Pin 16 –
digital ground) must be connected according to
Figure 6
D 4 MHz quartz must be very close to Pin 14 and Pin 15
D Components of the charge pump (C1/R1 for AM and
C2/R2 for FM) should be very close to Pin 12 with
respect to Pin 11.
6 (9)
Preliminary Information
Rev. A1: 19.08.1996

6 Page



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部品番号部品説明メーカ
U4286BM-BFPG3

AM / FM-PLL

TEMIC Semiconductors
TEMIC Semiconductors


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