U4286BM-BFP

U4286BM TEMIC | Alldatasheet

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Technical content

Features

/C0068Reference oscillator up to 15 MHz /C0068Two programmable 16 bit dividers adjustable from 2 to 65535 /C0068Fine tuning steps: AM /C0121 1 kHz FM /C0121 2 kHz /C0068Two programmable switching outputs (open drain up to 20 V) /C0068Few external component requirements due to integrated loop-transistor for AM/FM /C0068High signal/ noise ratio Block Diagram Shift register Latch Latch Preamplifier R–Divider N–Divider Preamplifier:2 Oscillator Status Latch detector Phase Current sources Analogue outputs Switching outputs

11 PDFM

12 PDAM

10 PDFMO

13 PDAMO

I2C–BUS Interface Figure 1.

TELEFUNKEN SemiconductorsU4286BM Preliminary Information Rev. A1: 19.08.19962 (9) Pin Description 8 9 U 4286 BM SCL SDA AS SWO 1 SWO 2 FMOSC GND 2 GND OSCOUT OSCIN PDAMO PDAM PDFM PDFMO AMOSC V DD 94 7908 e Pin Symbol Function

1 V DD Supply voltage

2 SCL I2C bus clock

3 SDA I2C bus data

4 AS Address selection

5 SWO 1 Switching output 1

6 SWO 2 Switching output 2

7 FMOSC FM oscillator input

8 GND 2 Ground 2 (analog)

9 AMOSC AM oscillator input

10 PDFMO FM analogue output

11 PDFM FM current output

12 PDAM AM current output

13 PDAMO AM analogue output

14 OSCIN Oscillator input

15 OSCOUT Oscillator output

16 GND 1 Ground 1 (digital)

The U4286BM is controlled via the 2-wire I2C bus. For programming there are one module address byte, two subaddress bytes and five data bytes. The module address contains a programmable address bit A 1 which with address select input AS (Pin 4) makes it possible to operate two U4286BM-B in one system. If bit A 1 is 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. If subaddress of R - divider is transmitted, the sequence of the next data bytes is DB 0 (Status), DB 1 and DB 2. If subaddress of N - divider is transmitted, the sequence of the next data bytes is DB 3 and DB 4. The bit organisation of the module address, subaddress and 5 data bytes are shown in figure 2. Each transmission on the I 2C bus begins with the “START”- condition and has to be ended by the “STOP”- condition (see figure 3). The integrated circuit U4286BM has two separate inputs for AM and FM oscillator. Pre-amplified AM signal is directed to the 16 bit N-divider via AM/ FM switch, whereas (pre-amplified) FM signal is first divided by a fixed prescaler (:2). AM/ FM switch is controlled by software. Tuning steps can be selected by 16 bit R-divider. Further there is a digital memory phase detector. There are two separate current sources for AM and FM amplifier (charge pump) as given in electrical characteristics. It allows independent adjustment of gain, whereby providing high current for high speed tuning and low current for stable tuning.

TELEFUNKEN Semiconductors U4286BM Preliminary Information Rev. A1: 19.08.1996 3 (9) Bit Organisation MSB LSB Module address 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 X X Subaddress (N-divider) X X X X 1 1 X X MSB LSB Data byte 0 (Status) X SWO1 SWO2 X AM/ FM PD ANA PD POL PD CUR D7 D6 D5 D4 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 LOW HIGH AM/FM FM-operation AM-operation PD – ANA PD analogue TEST PD – POL Negative polarity Positive polarity PD – CUR Output current 2 Output current 1 Figure 2.

TELEFUNKEN SemiconductorsU4286BM Preliminary Information Rev. A1: 19.08.19964 (9) Transmission protocol MSB LSB S Address A7 A0 A Subaddress R-divider A Data 0 A Data 1 A Data 2 A P MSB LSB S Address A7 A0 A Subaddress N-divider A Data 3 A Data 4 A A P S = Start P = Stop A = Acknowledge Figure 3. Absolute Maximum Ratings Parameters Symbol Value Unit Supply voltage Pin 1 V DD –0 to +6 V Input voltage Pin 2, 3, 4, 7, 9, 14, 15 V I –0.3 to VDD + 0.3 V Output current Pin 3, 5, 6 IO –1 to +5 mA Output drain voltage Pin 5, 6 V OD 20 V Output voltage Pin 10, 13 VAO 15 V Output current Pin 10, 13 IAO –1 to +20 mA Ambient temperature range Tamb –25 to +85 /C0095C Storage temperature range Tstg –40 to +125 /C0095C Junction temperature Tj 125 /C0095C Electrostatic handling (MIL Standard 883C) /C0034V ESD 2000 V Thermal Resistance Parameters Symbol Value Unit Junction ambient R thJA 160 K/W

TELEFUNKEN Semiconductors U4286BM Preliminary Information Rev. A1: 19.08.1996 5 (9)

Electrical Characteristics

V DD = 5 V , Tamb = 25°C, unless otherwise specified Parameters Test Conditions / Pins Symbol Min. Typ. Max. Unit Supply voltage Pin 1 V DD 4.5 5.0 5.5 V Quiescent supply current Pin 1 IDD 6.0 11.6 mA FM Input Sensitivity, RG = 50 /C0087 FMOSC fi = 70 to 120 MHz Pin 7 V SFM 25 mV fi = 120 to 130 MHz Pin 7 V SFM 50 mV AM Input Sensitivity, RG = 50 /C0087 AMOSC fi = 0.5 to 35 MHz Pin 9 V SAM 25 mV Oscillator Input Sensitivity, RG = 50 /C0087 OSCIN fi = 0.1 to 15 MHz Pin 14 V SOSC 100 mV Switching Output SWO 1, SWO 2 (Open Drain) Output voltage LOW LOW Output leakage current HIGH Pin 5, 6 IL = 1 mA IL = 0.1 mA Pin 5, 6 V5, V6 = 20 V V SWOL V SWOL IOHL 200 400 100 100 mV mV nA Phase Detector PDFM Output current 1 Output current 2 Pin 11 Pin 11 /C0034IPDFM /C0034IPDFM 400 100 500 125 600 150 /C0109A /C0109A Phase Detector PDAM Output current 1 Output current 2 Pin 12 Pin 12 /C0034IPDAM /C0034IPDAM 100 125 /C0109A /C0109A Analogue Output PDFMO, PDAMO Saturation voltage I = 15 mA Pin 10, 13 V sat 270 400 mV Leakage current Pin 10, 13 ILEAK 1 /C0109A I2C Bus SCL, SDA, AS Input voltage HIGH LOW Pin 2, 3, 4 V iBUS 3.0 V DD 1.5 V V Output voltage Acknowledge LOW ISDA = 3 mA Pin 3 V O 0.4 V Clock frequency Pin 2 fSCL 100 kHz Rise time SDA, SCL Pin 2, 3 tr 1 /C0109s Fall time SDA, SCL Pin 2, 3 tf 300 ns Period of SCL HIGH LOW Pin 2 tH tL 4.0 4.7 /C0109s /C0109s

TELEFUNKEN Semiconductors U4286BM Preliminary Information Rev. A1: 19.08.1996 7 (9) Application Circuit 16 15 14 13 12 11 10 9 1 3 42 57 86

4 MHz

6.8 n 10 k AMOSC 3 k 100 n 10 k 1 n220 1 k 16 V 12 V 2.2 n FMOSC 100 n 6.3 V 27 12 k 12 k 22 k 22 k 5 V 15 V 93 7582 e U 4286 BM 220 /C0109 100 /C0109 1 n C 3 C 1 R 1 R 2 C 2 C 4 C 5 Figure 5. PCB-Layout 16 15 14 13 12 11 10 9 13 42 57 86 GND DDV 93 7583 e C 1 C 2 C 4 C 3 Figure 6.

TELEFUNKEN SemiconductorsU4286BM Preliminary Information Rev. A1: 19.08.19968 (9) Ordering and Package Information Extended Type Number Package Remarks U4286BM-BFP SO16 plastic U4286BM-BFPG3 SO16 plastic Taping according to IEC-286-3 Dimensions in mm

TELEFUNKEN Semiconductors U4286BM Preliminary Information Rev. A1: 19.08.1996 9 (9) Ozone Depleting Substances Policy Statement It is the policy of TEMIC TELEFUNKEN microelectronic GmbH to 1. Meet all present and future national and international statutory requirements. 2. Regularly and continuously improve the performance of our products, processes, distribution and operating systems with respect to their impact on the health and safety of our employees and the public, as well as their impact on the environment. It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as ozone depleting substances (ODSs). The Montreal Protocol (1987) and its London Amendments (1990) intend to severely restrict the use of ODSs and forbid their use within the next ten years. Various national and international initiatives are pressing for an earlier ban on these substances. TEMIC TELEFUNKEN microelectronic GmbH semiconductor division has been able to use its policy of continuous improvements to eliminate the use of ODSs listed in the following documents. 1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively 2. Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental Protection Agency (EPA) in the USA 3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C (transitional substances) respectively. TEMIC can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain such substances. We reserve the right to make changes to improve technical design and may do so without further notice. Parameters can vary in different applications. All operating parameters must be validated for each customer application by the customer. Should the buyer use TEMIC products for any unintended or unauthorized application, the buyer shall indemnify 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 unauthorized use. TEMIC TELEFUNKEN microelectronic GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone: 49 (0)7131 67 2831, Fax number: 49 (0)7131 67 2423