U4289BM

U4289BM ETC | Alldatasheet

Document overview

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Technical content

Features

/C0068Reference oscillator up to 15 MHz /C0068Two programmable 16 bit dividers adjustable from 2 to 65535 /C0068High signal/noise ratio /C0068Fine tuning steps: AM /C0121 1 kHz FM /C0121 2 kHz /C0068Few external component required due to integrated loop-push-pull stage for AM/FM Ordering and Package Information Extended Type Number Package Remarks U4289BM-AFP SO16 plastic U4289BM-AFPG3 SO16 plastic Taping according to IEC-286-3 Block Diagram R-divider N-divider I2C bus interface Oscillator Phase Current sources AM/FM OSCOUT OSCIN SCL AS FMOSC AMOSC SDA 71 1 6 SWO1 PDAM PDAMO VA PDFMO PDFM GND2 GND1 DDV 95 10822 switch Switching output detector Figure 1.

Rev. A2, 14-May-97 2 (10) Pin Description SCL SDA AS SWO1 GND1 OSCOUT OSCIN VA PDAMO PDAM PDFM V DD FMOSC GND 2 PDFMOAMOSC 10 95 10823 Pin Symbol Function

1 V DD Supply voltage

2 SCL I2C bus clock

3 SDA I2C bus data

4 AS Address selection

5 SWO1 Switching output

6 FMOSC FM oscillator input

7 GND 2 Ground 2 (analogue)

8 AMOSC AM oscillator input

9 PDFMO FM analogue output

10 PDFM FM current output

11 PDAM AM current output

12 PDAMO AM analogue output

13 VA Analogue supply voltage

14 OSCIN Oscillator input

15 OSCOUT Oscillator output

16 GND1 Ground 1 (digital)

The U4289BM is controlled via the 2-wire I2C bus. For programming there are one module address byte, two sub- address 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 U4289BM 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 trans- mitted, 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 U4289BM has two separate inputs for AM and FM oscillator. Pre-amplified AM and FM sig- nals are fed to the 16 bit N-divider via AM/FM switch. AM/FM switch is controlled by software. Tuning steps can be selected by 16 bit R-divider. Further there is a digi- tal memory phase detector. There are two separate current sources for AM and FM amplifier (charge pump) as given in electrical characterisitics. It allows independent ad- justment of gain, whereby providing high current for high speed tuning and low current for stable tuning.

Rev. A2, 14-May-97 3 (10) Bit Organization 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 0 0 1 X X Subaddress (N-divider) X X X X 1 1 X X MSB LSB Data byte 0 (Status) SWO1 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.

Rev. A2, 14-May-97 4 (10) 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 –0.3 to +6 V Input voltage Pins 2, 3, 4, 6, 8, 14 and 15 V I –0.3 to VDD + 0.3 V Output current Pins 3 and 5 IO –1 to +5 mA Output drain voltage Pin 5 V OD 15 V Analogue supply voltage Pin 13 with 220 /C0087 seriell resistance 2 minutes 1) VA VA 6 to 15 V V Output current Pins 9 and 12 IAO –1 to +20 mA Ambient temperature range Tamb –30 to +85 /C0095C Storage temperature range Tstg –40 to +125 /C0095C Junction temperature Tj 125 /C0095C Electrostatic handling (modified MIL STD 883 D method 3015.7: all supply pins connected together) /C0034V ESD 1000 V 1) corresponding our application circuit (page 7) Thermal Resistance Parameters Symbol Value Unit Junction ambient R thJA 160 K/W

Rev. A2, 14-May-97 5 (10)

Electrical Characteristics

V DD = 5 V , VA = 10 V , Tamb = 25°C, unless otherwise specified Parameters Test conditions / Pin Symbol Min. Typ. Max. Unit Supply voltage Pin 1 V DD 4.5 5.0 5.5 V Quiescent supply currentAM-mode Pin 1 FM-mode IDD 4.0 4.0 7.0 7.0 mA FM input sensitivity, RG = 50 /C0087 FMOSC fi = 70 to 120 MHz Pin 6 V SFM 40 mV rms fi = 160 MHz Pin 6 V SFM 150 mV rms AM input sensitivity, RG = 50 /C0087 AMOSC fi = 0.6 to 35 MHz Pin 8 V SAM 40 mV rms Oscillator input sensitivity, RG = 50 /C0087 OSCIN fi = 0.1 to 15 MHz Pin 14 V SOSC 100 mV rms Phase detector PDFM Output current 1 Output current 2 Pin 10 Pin 10 /C0034IPDFM /C0034IPDFM 1600 400 2000 500 2400 600 /C0109A /C0109A Leakage current Pin 10 /C0034IPDFML 20 nA Phase detector PDAM Output current 1 Output current 2 Pin 11 Pin 11 /C0034IPDAM /C0034IPDAM 160 200 240 /C0109A /C0109A Leakage current Pin 11 /C0034IPDAML 20 nA Analogue output PDFMO, PDAMO Saturation voltage LOW HIGH Pins 9 and 12 I = 15 mA V satL V satH 9.5 200 9.95 400 mV V I2C bus SCL, SDA, AS Input voltage HIGH LOW Pins 2, 3 and 4V iBUS 3.0 V DD 1.5 V V Output voltage Acknowledge LOW Pin 3 ISDA = 3 mA V O 0.4 V Clock frequency Pin 2 fSCL 100 kHz Rise time SDA, SCL Pins 2 and 3 tr 1 /C0109s Fall time SDA, SCL Pins 2 and 3 tf 300 ns Period of SCL HIGH LOW Pin 2 HIGH LOW tH tL 4.0 4.7 /C0109s /C0109s Setup time Start condition Data Stop condition Time space tsSTA tsDAT tsSTOP twSTA 4.7 250 4.7 4.7 /C0109s ns /C0109s /C0109s Hold time Start condition DATA thSTA thDAT 4.0 /C0109s /C0109s 1) This is a space of time where the bus must be free from data transmission and before a new transmission can be started.

Figure 6. AM input sensitivity

4 MHz

Rev. A2, 14-May-97 9 (10)

Package Information

10.0 9.85 8.89 0.4 1.27 1.4 0.25 0.10 5.2 4.8 3.7 3.8 6.15 5.85 0.2 16 9

Rev. A2, 14-May-97 10 (10) 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