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| U4289BM AM / FM - PLL Description The U4289BM is an integrated circuit in BICMOS technology for frequency synthesizers. It performs all the functions of a PLL radio tuning system and is controlled by an I2C bus. The device is designed for all frequency synthesizer applications in 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 D Fine tuning steps: AM FM D High signal/noise ratio D Few external component required due to integrated loop-push-pull stage for AM/FM y 1 kHz y 2 kHz Ordering and Package Information Extended Type Number U4289BM-AFP U4289BM-AFPG3 Package SO16 plastic SO16 plastic Remarks Taping according to IEC-286-3 Block Diagram OSCIN 14 Oscillator OSCOUT 15 SCL SDA AS FMOSC 2 3 4 6 Phase detector I2C bus interface Current sources 9 10 N-divider 1 VDD Figure 1. 16 GND1 12 13 PDAMO VA R-divider Switching output 5 11 SWO1 PDAM PDFMO PDFM AMOSC 8 AM/FM switch 7 GND2 95 10822 TELEFUNKEN Semiconductors Rev. A2, 14-May-97 1 (10) U4289BM Pin Description VDD SCL 1 2 3 4 5 6 7 8 95 10823 16 15 14 13 12 11 9 10 GND1 OSCOUT OSCIN VA PDAMO PDAM PDFM PDFMO SDA AS SWO1 FMOSC GND 2 AMOSC Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Symbol VDD SCL SDA AS SWO1 FMOSC GND 2 AMOSC PDFMO PDFM PDAM PDAMO VA OSCIN OSCOUT GND1 Function Supply voltage I2C bus clock I2C bus data Address selection Switching output FM oscillator input Ground 2 (analogue) AM oscillator input FM analogue output FM current output AM current output AM analogue output Analogue supply voltage Oscillator input Oscillator output Ground 1 (digital) Functional Description The U4289BM 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 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 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 I2C 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 signals 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 digital memory phase detector. There are two separate current sources for AM and FM amplifier (charge pump) as given in electrical characterisitics. It allows independent adjustment of gain, whereby providing high current for high speed tuning and low current for stable tuning. 2 (10) TELEFUNKEN Semiconductors Rev. A2, 14-May-97 U4289BM Bit Organization Module address MSB 1 A7 1 A6 0 A5 0 A4 1 A3 0 A2 0/1 A1 LSB 0 A0 Subaddress (R-divider) X X X 0 0 1 X X Subaddress (N-divider) X X X X 1 1 X X Data byte 0 (Status) MSB SWO1 D7 D6 D5 D4 AM/ FM D3 PD ANA D2 PD POL D1 LSB PD CUR 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 TELEFUNKEN Semiconductors Rev. A2, 14-May-97 3 (10) U4289BM Transmission Protocol MSB S A7 Address A0 LSB A Subaddress R-divider A Data 0 A Data 1 A Data 2 A P MSB S A7 S = Start Address LSB A A0 P = Stop Subaddress N-divider A Data 3 A Data 4 A A P A = Acknowledge Figure 3. Absolute Maximum Ratings Parameters Supply voltage Pin 1 Input voltage Pins 2, 3, 4, 6, 8, 14 and 15 Output current Pins 3 and 5 Output drain voltage Pin 5 Analogue supply voltage Pin 13 with 220 W seriell resistance 2 minutes 1) Output current Pins 9 and 12 Ambient temperature range Storage temperature range Junction temperature Electrostatic handling (modified MIL STD 883 D method 3015.7: all supply pins connected together) 1) "V Symbol VDD VI IO VOD VA VA IAO Tamb Tstg Tj ESD Value -0.3 to +6 -0.3 to VDD + 0.3 -1 to +5 15 6 to 15 24 -1 to +20 -30 to +85 -40 to +125 125 1000 Unit V V mA V V V mA _C _C _C V corresponding our application circuit (page 7) Thermal Resistance Parameters Junction ambient Symbol RthJA Value 160 Unit K/W 4 (10) TELEFUNKEN Semiconductors Rev. A2, 14-May-97 U4289BM Electrical Characteristics VDD = 5 V, VA = 10 V, Tamb = 25C, unless otherwise specified Parameters Supply voltage Quiescent supply current Test conditions / Pin Pin 1 AM-mode Pin 1 FM-mode FM input sensitivity, RG = 50 W FMOSC fi = 70 to 120 MHz Pin 6 fi = 160 MHz Pin 6 AM input sensitivity, RG = 50 W AMOSC fi = 0.6 to 35 MHz Pin 8 Oscillator input sensitivity, RG = 50 W OSCIN fi = 0.1 to 15 MHz Pin 14 Phase detector PDFM Output current 1 Pin 10 Output current 2 Pin 10 Leakage current Pin 10 Phase detector PDAM Output current 1 Pin 11 Output current 2 Pin 11 Leakage current Pin 11 Analogue output PDFMO, PDAMO Saturation voltage Pins 9 and 12 LOW I = 15 mA HIGH I2C bus SCL, SDA, AS Input voltage Pins 2, 3 and 4 HIGH LOW Output voltage Pin 3 Acknowledge LOW ISDA = 3 mA Clock frequency Pin 2 Rise time SDA, SCL Pins 2 and 3 Fall time SDA, SCL Pins 2 and 3 Period of SCL Pin 2 HIGH HIGH LOW LOW Setup time Start condition Data Stop condition Time space 1) Hold time Start condition DATA 1) Symbol VDD IDD Min. 4.5 Typ. 5.0 4.0 4.0 Max. 5.5 7.0 7.0 Unit V mA VSFM VSFM VSAM VSOSC 40 150 40 100 1600 400 2000 500 2400 600 20 240 60 20 mVrms mVrms mVrms mVrms "I "I "I "I "I "I PDFM PDFM mA mA nA PDFML PDAM PDAM 160 40 200 50 mA mA nA mV V PDAML VsatL VsatH ViBUS 9.5 200 9.95 400 3.0 0 VO fSCL tr tf tH tL tsSTA tsDAT tsSTOP twSTA thSTA thDAT 4.0 4.7 4.7 250 4.7 4.7 4.0 0 VDD 1.5 0.4 100 1 300 V V V kHz ms ns ms ms ms ns ms ms ms ms This is a space of time where the bus must be free from data transmission and before a new transmission can be started. TELEFUNKEN Semiconductors Rev. A2, 14-May-97 5 (10) U4289BM Bus Timing SDA twSTA tr tf thSTA SCL P S thSTA tL thDAT tH tsSTA thDAT tsSTOP P P = Stop, S = Start Figure 4. 95 10122 14 12 10 VSFM ( mV ) VSFM ( mV ) 8 6 4 2 0 20 13354 14 T = 85C 12 10 VDD = 5.5 V 5.0 V 4.5 V 8 6 4 2 0 20 13355 T = -30C VDD = 5.5 V 5.0 V 4.5 V 40 60 80 100 120 40 60 80 100 120 fiFM ( MHz ) fiFM ( MHz ) Figure 5. FM input sensitivity 6 (10) TELEFUNKEN Semiconductors Rev. A2, 14-May-97 U4289BM 100 T = 85C 100 T = -30C V SAM ( mV ) 10 V SAM ( mV ) VDD = 5.5 V 5.0 V 4.5 V 10 VDD = 5.5 V 5.0 V 4.5 V 1 0.1 13353 1.0 10.0 fiAM ( MHz ) 100.0 13356 1 0.1 1.0 10.0 fiAM ( MHz ) 100.0 Figure 6. AM input sensitivity Application Circuit 6 to 15 V 110 100 m 16 V 110 3k C6* C1 * 27 p 4 MHz 16 15 14 13 12 27 p C5 R1 * 11 * R2* C2 * 10 9 FMOSC C3 100 n 1 2 3 U4289BM 4 5 6 7 8 2.2 n 1n AMOSC 27 5V 12 k 12 k * Values depend on the step frequency and used varicaps Figure 7. 100 m 6.3 V C4 100 n 95 10824 TELEFUNKEN Semiconductors Rev. A2, 14-May-97 7 (10) U4289BM Recommendations for Applications D C3 = 100 nF should be very close to Pin 1 (VDD) and Pin 16 (GND 1) D 4 MHz crystal 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 11 with respect to Pin 10. D GND 2 (Pin 7 - analog ground) and GND 1 (Pin 16 - digital ground) must be connected according to figure 8 PCB-Layout GND 16 15 14 13 12 C1 11 10 C2 9 C4 VDD C3 1 2 3 4 5 6 7 8 95 10825 Figure 8. 8 (10) TELEFUNKEN Semiconductors Rev. A2, 14-May-97 U4289BM Package Information Package SO16 Dimensions in mm 10.0 9.85 5.2 4.8 3.7 1.4 0.4 1.27 8.89 16 9 0.25 0.10 0.2 3.8 6.15 5.85 technical drawings according to DIN specifications 13036 1 8 TELEFUNKEN Semiconductors Rev. A2, 14-May-97 9 (10) U4289BM 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 10 (10) TELEFUNKEN Semiconductors Rev. A2, 14-May-97 |
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