U4280BM TEMIC Semiconductors, U4280BM Datasheet

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U4280BM

Manufacturer Part Number
U4280BM
Description
AM / FM - PLL
Manufacturer
TEMIC Semiconductors
Datasheet

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TELEFUNKEN Semiconductors
Rev. A1, 10-Apr-97
AM / FM - PLL
Description
The U4280BM is an integrated circuit in BICMOS
technology for frequency synthesizer. It performs all the
functions of a PLL radio tuning system and is controlled
Features
D
D
D
D
Ordering Information
Block Diagram
Frequency range up to 150 MHz
Pre-amplifier for AM and FM
Fine tuning steps:
Two programmable 16-bit divider,
adjustable from 2 to 65535
Extended Type Number
AMOSC
OSCOUT
FMOSC
U4280BM-BFL
OSCIN
U4280BM-B
SDA
SCL
AS
18
19
2
3
4
12
10
Preamplifier
Preamplifier : 2
I
Oscillator
AM
FM
2
interface
C – BUS
y
y
2 kHz
1kHz
Preliminary Information
AM / FM–
switch
11
GND2
Figure 1. Block diagram
Package
DIP20
SO20
Shift register
R – Divider
N – Divider
Latch
Latch
1
V
DD
by I
synthesizer applications of radio receivers, as well as
RDS (Radio Data System) applications.
D
D
D
D
Reference oscillator up to 15 MHz
5 programmable switching outputs,
4 are open drain outputs up to 15 V
Phase detector with separate outputs for AM and FM
Controlled via I
2
C bus. The device is designed for all frequency
20
GND1
PRT SWO1 SWO2 SWO3 AM/FM
detector
Status
Latch
Phase
5
2
Switching outputs
C bus
6
7
Remarks
U4280BM
8
detector
Current
sources
Analog
outputs
Lock
9
13346
14
15
13
16
17
PDFM
PDAM
PDFMO
PDAMO
LD
1 (9)

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U4280BM Summary of contents

Page 1

... PLL Description The U4280BM is an integrated circuit in BICMOS technology for frequency synthesizer. It performs all the functions of a PLL radio tuning system and is controlled Features D Frequency range up to 150 MHz D Pre-amplifier for AM and Fine tuning steps: AM 1kHz FM 2 kHz D Two programmable 16-bit divider, ...

Page 2

... The module address contains a programmable address bit A 1 which with address select input AS (Pin 4) makes it possible to operate two U4280BM-B in one system. If bit identical with the status of the address select input AS, the chip is selected. The subaddress determines which one of the data bytes is transmitted first ...

Page 3

... PD - ANA PD - POL PD - CUR TELEFUNKEN Semiconductors Rev. A1, 10-Apr-97 Preliminary Information SWO1 SWO2 SWO3 R-divider 7 2 R-divider 15 N-divider 7 2 N-divider LOW FM-operation PD analog Negative polarity Output current 2 Figure 3. U4280BM LSB LSB AM ANA POL CUR HIGH AM-operation TEST Positive polarity Output current 1 3 (9) ...

Page 4

... U4280BM Transmission Protocol MSB LSB S Address A Subaddress A7 A0 R-divider MSB LSB S Address A Subaddress A7 A0 N-divider S = Start P = Stop A = Acknowledge Absolute Maximum Ratings Parameters Supply voltage Pin 1 Input voltages Pins 10, 12, 18 and 19 Output currents Pins and 9 Output drain voltage Pins and 9 Ambient temperature range ...

Page 5

... Pin 14 I 400 O1 I 100 O2 Pin 13,16 I 0.1 13, Pin 2 f SCL 4 wSTA t hSTA t 4.7 sSTA t 250 sDAT t hDAT U4280BM Typ. Max. Unit 5.0 5.5 V 6.0 11 65535 – 0.4 V 0.4 V 0.1 V 0.4 V 0 500 600 A m 125 150 100 100 –1 – ...

Page 6

... U4280BM Bus Timing t wSTA SDA t sSTA SCL t hSTA START CLOCK PDFM 13 PDFMA PDAM 16 PDAMA 22 k Figure 6. Analog outputs PDFMA, PDAMA 6 (9) Preliminary Information t t HIGH LOW r t sDAT DATACHANGE Figure 5. Bus timing 13401 t sSTO t hDAT STOP 13347 TELEFUNKEN Semiconductors Rev. A1, 10-Apr-97 ...

Page 7

... Application Circuit 4 1 MHz 100 – Master –Transmitter 2 TELEFUNKEN Semiconductors Rev. A1, 10-Apr-97 Preliminary Information LD Test out AM input C 7 100 180 U4280BM 3 750 R 3 300 Figure 7. Application circuit U4280BM tune FM–Tuner VCO LED 13348 7 (9) ...

Page 8

... U4280BM Package Information Package DIP20 (CEI) Dimensions in mm 1.65 1. Package SO20 Dimensions in mm 12.95 12.70 0.4 1.27 11. (9) Preliminary Information 26.42 25.40 3.80 3.05 0.89 0.38 3.81 3.18 2.54 22.86 11 technical drawings according to DIN specifications 10 2.35 0.25 0.10 11 technical drawings according to DIN ...

Page 9

... TEMIC against all claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal damage, injury or death associated with such unintended or TEMIC TELEFUNKEN microelectronic GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone 7131 67 2831, Fax number 7131 67 2423 TELEFUNKEN Semiconductors Rev. A1, 10-Apr-97 Preliminary Information unauthorized use. U4280BM 9 (9) ...

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