U2762B 900-MHz ISM Band Receiver Description The receiver IC U2762B-B is specifically designed for cordless telephone applications in the 900-MHz ISM band. It is manufactured using TEMIC’s advanced UHF process. The IC consists of a 900-MHz RF amplifier and mixer, 10.7-MHz IF amplifier, limiter, RSSI, quadrature demodulator and comparator for the bit-slicer function. The device features 2.9-V operation. In conjunction with TEMIC’s transmitter IC U2763B-B and the PLL U2781B, a complete ISM RF IC kit is available which fits perfectly with AMD’s PhoX controllers AM79C432A and AM79C433. Features Benefits D Single-conversion receiver with 10.7-MHz IF D Comparator for bit slicer integrated D Temperature-compensated RSSI with 65 dB D Low filter costs due to 10.7-MHz single conversion D Very low count of external components saves PCB dynamic range Supply-voltage range 2.7 V to 3.3 V Only 17 mA typical current consumption Few external components SSO28 package D Low current consumption results in very long D D D D Electrostatic sensitive device. Observe precautions for handling. space and costs stand-by time of approximately 7 days Block Diagram VCC1 LO REF LO in GND1 A2 out VCC2 Lim1 in Lim1 REF Lim1 out GND3 Lim2 in Lim2 REF DEM NTank DEM Tank 28 27 26 25 24 23 22 21 20 19 18 17 16 15 Mix A2 Demo– dulator RSSI Vcc/2 A1 + – Compa– rator 10 k Ω 1 2 3 4 5 6 7 8 9 10 11 12 13 14 NC RSSI A1 REF A1 in GND2 Mix out VCC3 A2 in A2 REF Data out Com Nin Com in SL in DEM out 13951 Figure 1. Block diagram Ordering Information Extended Type Number U2762B-BFS U2762B-BFSG3 Package SSO28 SSO28 Remarks Tubes, MOQ 600 pcs Taped and reeled, MOQ 4000 pcs Rev. A3, 10-Jun-98 1 (9) Preliminary Information U2762B Pin Description NC 1 28 VCC1 RSSI 2 27 LO REF 26 LO in A1 REF 3 A1 in 4 25 GND1 GND2 5 24 A2 out Mix out 6 23 VCC2 VCC3 7 22 Lim1 in A2 in 8 21 Lim1 REF 20 Lim1 out A2 REF 9 19 GND3 Data out 10 Com Nin Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 18 Lim2 in 11 Com in 12 17 Lim2 REF 16 DEM NTank SL in 13 15 DEM Tank DEM out 14 13960 Figure 2. Pinning 17 18 19 20 21 22 23 24 25 26 27 28 Symbol NC RSSI A1 REF A1 in GND2 Mix out VCC3 A2 in A2 REF Data out Com Nin Com in SL in DEM out DEM Tank DEM NTank Lim2 REF Lim2 in GND3 Lim1 out Lim1 REF Lim1 in VCC2 A2 out GND1 LO in LO REF VCC1 Function Not connected Signal-strength indicator RF reference RF input IF ground Mixer output IF and AF power supply IF amplifier A2 input IF amplifier A2 reference Data output Comparator reference Comparator input / slicer output Slicer input Demodulator output Quadrature filter Quadrature filter Limiter2 reference Limiter2 input IF and AF Ground Limiter1 output Limiter1 reference Limiter1 input IF power supply 1 IF amplifier A2 output RF ground Local oscillator input Local oscillator reference RF power supply Functional Description RF Amplifier / Mixer Demodulator The RF amplifier / mixer down-converts the antenna signal to the IF frequency. It has asymmetrical RF and IF ports. The LO input includes an amplifier for good sensitivity and can be used in a symmetrical- as well as an asymmetrical configuration. The quadrature demodulator in the receiving path contains an internal 7-pF quadrature capacitor to couple the IF signal to the external tank providing the 90-degree phase shift. The tank may be either an LC-tank circuit or an alignment-free discrete ceramic resonator. IF Amplifier A2 Bit-Slicer Amplifier and Comparator An additional gain stage enables an application-specific insertion point for IF filtering. The bit-slicer limits the baseband signal. Furthermore it eliminates the DC-offset by an AC-coupled lowpass filter to the demodulator output. A second lowpass filter recovers the exact comparator threshold value of the bit-slicer’s output. The time constants of both lowpass filters can be selected independently from each other to optimize power-up timing. Limiter 1 / 2 The two-stage limiting amplifier is designed to be directly coupled to low-cost 10.7-MHz ceramic IF filters in front of each stage. The total dynamic range is 65 dB. 2 (9) Rev. A3, 10-Jun-98 Preliminary Information U2762B Absolute Maximum Ratings Parameters Supply voltage Input voltages Input voltages Pins 7, 23, 28 Pins 1, 2, 6, 10, 14, 20 and 24 Pins 3, 4, 8, 9, 11, 12, 13,15, 16, 18, 21, 22, 26 and 27 Junction temperature Storage temperature Symbol VCC Vin Vin Value 0 to 3.5 0 to VCC 0 to VCC – 1 V Unit V V V Tj Tstg 125 –40 to +125 _C _C Symbol RthJA Value 130 Unit K/W Symbol VS Tamb Value 2.7 to 3.3 0 to 70 Unit V _C Thermal Resistance Parameters Junction ambient SSO28 Operating Range Parameters Supply voltage Ambient temperature Electrical Characteristics Cascaded A1 and MX1 Temperature range: 0_C to 70_C ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ m ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ Á ÁÁÁ ÁÁÁÁ Á ÁÁÁ ÁÁÁÁ Á ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ W ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ W ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ m ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ m W ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ Parameters Supply-voltage range Supply current A1MX1 turn-on time RF input impedance RF input SWR RF input frequency LO input impedance LO input frequency A1/MX1 cascaded insertion voltage gain Noise figure 1-dB compression point Output voltage @ 1 dB compression 3rd-order intercept point LO to RF leakage LO to IF leakage IF output impedance Test Conditions / Pins Pin 28 Pin 4 Pin 4 Symbol VCC ISA1on tA1MX1on ZA1in fin Min. 2.7 800 Pins 26, 27 Max. 3.3 1200 2 fLOin MX1LO = 916.8 MHz MX1RF = 927.5 MHz Pin = –40 dBm PLOin = –20 dBm SSB Input Pin 4 MX1LO = 916.8 MHz, MX1RF = 927.5 MHz, Pin 6 fLO = 980 MHz PLO = –20 dBm fRF1 = 1 GHz fRF2 = 995 MHz PRF = –40 dBm, Pin 4 PLO = –20 dBm Pin 4 PLO = –20 dBm Pin 6 @10.7-MHz IF single ended Pin 6 Typ. 2.9 6.5 2.5 50 < 2:1 GVA1MX1 800 21 24 1200 27 Unit V mA s VSWR MHz k MHz dB NF P1dB P1dBout 11.5 –27 104 dB dBm dB V IIP3 –15 dBm dBm dB V LMX1Zout –50 62 330 Rev. A3, 10-Jun-98 3 (9) Preliminary Information U2762B Electrical Characteristics A2 ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ W ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ m ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ Á ÁÁÁÁ ÁÁÁ ÁÁÁÁ Á ÁÁÁÁ ÁÁÁ m ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ m ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ W ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ Parameters A2 turn-on time IF input impedance Input frequency Output frequency Gain Noise figure 1-dB compression point 3rd-order intercept point Output voltage @ 1 dB compression Output load Test Conditions / Pins Min. @10.7 MHz Pin 8 Pin 8 Pin 24 Symbol tA2on ZMX2in fMX2in fMX2out Gp NF P1dB IIP3 P1dBout Single ended Pin 24 LMX2out @10.7 MHz Pin 8 Pin 24 @10.7 MHz Typ. 2.5 330 10.7 10.7 10 8 95 112 104 Max. 260 330 400 Min. 2.7 Typ. 2.9 4.9 6.0 Max. 3.3 260 8 400 22 22 12 Unit ms MHz MHz dB dB dB V dB V dB V Common Electrical Characteristics IF/AF System Parameters Supply-voltage range Supply current Supply current Test Conditions / Pins Pins 7, 23 Pin 7 Pin 23 Symbol V7, V23 I7 I23 Unit V mA mA ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁ Electrical Characteristics RSSI/Lim1 and Lim2 ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ m ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ W ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ W ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ W ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ m m m m ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ m ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ W ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ Parameters –3 dB limiting at Lim1 input Lim1/Lim2 cascaded voltage gain Limiter 1 Lim1 input impedance Lim1 input frequency Lim1 output impedance Voltage gain Limiter 2 Lim2 input impedance Lim2 input frequency RSSI Dynamic range Output voltage RSSI fall time RSSI rise time Output impedance Test Conditions / Pins Valid for –5 dB insertion loss for 2nd IF filter Pin 22 fIF = 10.7 MHz, PIFin = –110 dBm Symbol P3dB Pin 22 Pin 22 Pin 22 ZLIM1in fLIM1BW fLIM1out GLIM1 260 1 260 ZLIM2in fLIM2BW 260 1 DRSSI Vout 20 0.1 1.7 Pin 18 Pin 18 @ 20 dB V @ 85 dB V Pin 2 Pin 2 Pin 2 Min. GLIM12 Typ. Max. 8 110 tfRSSI trRSSI ZRSSI 4 (9) 330 330 45 330 0.2 1.8 10 || 3 Unit dB V dB 400 22 400 MHz dB 400 22 85 0.3 1.9 50 50 MHz dB V V V s s k || pF Rev. A3, 10-Jun-98 Preliminary Information U2762B Electrical Characteristics Demodulator ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ W ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ Electrical Characteristics Comparator ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ W ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ W ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ W W ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ W ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ Electrical Characteristics Slicer Amplifier ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ W ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ Parameters Demodulator 3 db BW Demodulator total harmonic distortion Symbol fDEMODBW THD DC output voltage Output load Test Conditions / Pins Pin 14 fmod = 36 kHz fdev = 40 kHz Pin 14 fIFin = 10.7 MHz fmod = 36 kHz Pin 14 fdev = 40 kHz fIFin = 10.7 MHz Pin 14 Pin 14 LDout 10 Parameters Ref. input impedance Output voltage ‘high’ Output voltage ‘low’ Output low-to-high rise time Output high-to-low fall time Hysteresis Test Conditions / Pins Pin 11 RLOAD > 10 k Pin 10 RLOAD > 10 k Pin 10 RLOAD = 10 k Pin 10 CLOAD = 10 pf RLOAD = 10 k Pin 10 CLOAD = 10 pf Pin 12 Symbol ZCOMPin VoutH VoutL tr Min. Parameters Open loop gain Output load Output swing Test Conditions / Pins Pin 13 to 12 AC load Pin 12 Pin 12 Symbol GSol LSout Demodulator output voltage Min. VDout Typ. 200 <3 Max. Unit kHz % 150 mVrms 1.5 V k Typ. 100 Max. 0.3 500 Unit k V V ns 500 ns VCC–0.3 tf VHYST 25 Min. Typ. 40 mV Max. 10 0.7 Unit dB k V Internal Pin Configuration VCC VCC 5 kΩ 1 kΩ 2 3.3 pF 1 kΩ 3 10 kΩ 13956 4 800 Ω 13957 Figure 3. Pin 2: Signal strength indicator (RSSI) Figure 4. Pins 3/4: RF reference / RF input Rev. A3, 10-Jun-98 5 (9) Preliminary Information U2762B VCC VCC 10 µA 296 Ω 6 11 13963 1 mA Figure 8. Pin 11: Comparator reference 13958 VCC VCC Figure 5. Pin 6: Mixer output 10 kΩ 12 VCC 290 µA 9 8 10 pF 257 Ω 13 80 µA 800 Ω 13964 13959 Figure 6. Pins 8/9: IF amplifier A2 input / reference Figure 9. Pin 12: Comparator input / Slicer output Pin 13: Slicer input . VCC VCC 180 µA 20 kΩ 10 14 13962 13965 Figure 7. Pin 10: Data output Figure 10. Pin 14: Demodulator output 6 (9) Rev. A3, 10-Jun-98 Preliminary Information U2762B VCC 20 kΩ 7 pF 21 100 kΩ 330 Ω 15,16 22 140 µA 11 µA 13966 13969 Figure 11. Pin 15/16: Quadrature filter Figure 14. Pins 21/22: Limiter 1 input / reference VCC 17 272 Ω 330 Ω 24 18 1.1 mA 13970 13967 Figure 12. Pins 17/18: Limiter 2 input / reference Figure 15. Pin 24: IF amplifier A2 output 26 VCC 27 240 Ω 20 1 kΩ 1 kΩ 440 µA 13971 13968 Figure 13. Pin 20: Limiter 1 output Figure 16. Pins 26/27: Local oscillator input / reference Rev. A3, 10-Jun-98 7 (9) Preliminary Information U2762B Application Circuit C51 C52 C53 100pF 0.1µF C54 1nF C47 1nF 1nF R87 560Ω Y2 FL4 LO in C90 C58 100pF R88 560Ω 1nF 100pF VCC FCD1070MB115 TDK Ceramic Discriminator DEM out C0 8.2pF 1µF C65 C64 28 27 26 25 24 23 22 21 20 19 18 17 16 15 0.1µF 100pF U2762B 1 A1 in 2 3 4 5 6 7 8 SL in 9 10 11 12 13 C72 1µF 14 R75 C71 Data out 5.6kΩ 100pF C77 C76 C78 100pF 0.01µF 100pF RSSI R99 10kΩ R97 10kΩ 1nF FL5 C83 4.7µF 10kΩ 10kΩ C79 FL4/5: SFE10.7MS3C10-A R100 0.1µF 13972 Figure 17. Application circuit Package Information Package SSO28 Dimensions in mm 5.7 5.3 9.10 9.01 4.5 4.3 1.30 0.15 0.15 0.05 0.25 6.6 6.3 0.65 8.45 28 15 technical drawings according to DIN specifications 13018 1 14 8 (9) Rev. A3, 10-Jun-98 Preliminary Information U2762B Ozone Depleting Substances Policy Statement It is the policy of TEMIC Semiconductor 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 Semiconductor 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 Semiconductor GmbH 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 Semiconductor GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone: 49 ( 0 ) 7131 67 2831, Fax number: 49 ( 0 ) 7131 67 2423 Rev. A3, 10-Jun-98 9 (9) Preliminary Information