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| TELEFUNKEN Semiconductors U2891B 2.5 GHz Quadrature Up-Converter Description The U2891B is a silicon monolithic IC made with TELEFUNKEN's advanced UHF process. The IC consists of a 500 MHz I/Q quadrature modulator and a 2.5 GHz mixer. Both parts can be connected via an external filter in order to suppress harmonics and spurious products. The device features 3 V operation, a low current consumption and furthermore two separate power-down functions for modulator and mixer. The RF ports are single ended and the device can be operated adjustment free, but for optimization also two pins for phase adjustment are provided. These features and the double conversion concept of U2891B make this device perfectly suited for all digital radio applications from 900 MHz up to 2.5 GHz (e.g., GSM, DCS 1800, JDC, PHP and WLAN). D Low power consumption: 25 mA / 3 V (typical at -8 dBm output level) D 2.5 GHz output frequency D Excellent sideband suppression by means of duty cycle regeneration and 90 phase control D Separate power-down mode for modulator and mixer D Low LO input level: - 10 dBm (typical) D LO and RF port 50-W single-ended D Extended talk time due to increased battery life D Few external components results in cost and board space saving D Adjustment free, hence saves time and cost D One TX Platform for different systems D Reduced costs and space for battery (3-V operation) Case: SSO-24 package Ordering Information: U2891B-AFS, U2891B-AFSG3 (see page 5) Block Diagram Ad ro nic C om po ne GND 24 GND 1 6 nt s SIF 14 18 LP 2 IFO 7 11 IFi 50 Features Benefits BBAi BBAi 2 3 LO 1 4 Gm bH PDIF PDRF VS 13 Voltage regulator 8, 21, 20 12 IFi 9 LO2 15 SRF Lo - Reg. f/2f 0 50 LO 1 5 90 o Control RFO 16 BBBi BBBi 22 23 10,17 19 LP 1 94 8141 e GND Rev. A2: 04.10.1995 Advanced Information 1 (6) U2891B Pin Description GND BBAi BBAi LO 1 LO 1 SIF IFO VS LO 2 GND IFi IFi 1 2 3 4 5 6 7 8 9 10 11 12 94 8581 e TELEFUNKEN Semiconductors 24 GND 23 BBBi 22 BBBi 21 VS 20 VS 19 LP 1 18 LP 2 17 GND 16 RFO 15 SRF 14 PDIF 13 PDRF Absolute Maximum Ratings Parameters Supply voltage Pins 8, 20 and 21 Input voltage Pins 2, 3, 4, 5, 9, 11, 12, 22 and 23 Junction temperature Storage temperature range Ad ro nic C om po ne 19 20 21 22 23 24 LP 1 VS VS BBBi BBBi GND Symbol VS, VSRF Vi Tj Tstg Symbol VS, VSRF Tamb Symbol Rthja Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Symbol GND BBAi BBAi LO 1 LO 1 SIF IFO VS LO 2 GND IFi IFi PDRF PDIF SRF RFO GND LP 2 nt s Operating Range Parameters Supply voltage Pins 8, 20 and 21 Ambient temperature range Thermal Resistance Junction ambient Parameters SSO-24 2 (6) Advanced Information Gm bH Function Ground Baseband input B inverse Baseband input B LO 1 input LO 1 input inverse Output symmetry IF IF output Supply voltage LO 2 input Ground IF input IF input inverse Power-down RF Power-down IF Output symmetry RF RF output Ground Filter and IF level adjustment Filter and IF level adjustment Supply voltage Supply voltage Baseband input B Baseband input B inverse Ground Value 6 0 to VS 125 - 40 to + 125 Unit V V C C Value 2.7 to 5.5 - 40 to + 85 Unit V C Value 140 Unit K/W Rev. A2: 04.10.1995 TELEFUNKEN Semiconductors U2891B Symbol VS, VSRF IS, ISRF Min. 2.7 Electrical Characteristics: General Data Parameters Power supply Supply voltage range Supply current Test Conditions / Pin Pin 8, 20 and 21 Pin 8, 20 and 21, VS = 3 V Gm bH Typ. Max. 5.5 25 Typ. -8 40 1.4 45 500 150 200 30 - 10 tbd. 500 -2 0.6 <5 10 Max. 2 900 VS +0.5 VS +0.5 1 0.15 <1 Unit V mA Electrical Characteristics: I/Q Modulator Test conditions (unless otherwise specified): VS = 3 V, Tamb = 25C, referred to test circuit. System impedance Zo = 50 W, fLO1 = 100 MHz, PLO1 = -10 dBm. Parameters Test Conditions / Pin IF output Pin 7 Output level RLP = R LO1 suppression Voltage standing wave ratio Sideband suppression Baseband inputs Pins 2, 3, 22 and 23 Input voltage range (differential) Input impedance Input frequency LO1 input Pins 4 and 5 Frequency range Input level 1) Input impedance Duty cycle range Power-down mode Supply current VPD v 0.5 V Pin 14 Settling time CSPD 100 pF, CLO = 100 pF, CRFo = 1 nF Power down voltage Pin 14 "Power on" VS = 3.5 to 5.5 V VS = 2.7 to 3.5 V "Power down" Power down current Power on Power down Symbol nt s Min. 0.4 IPD tS VS - 0.5 VS Unit dBm dB dB mVpp kW MHz MHz dBm W Ad ro nic C om po ne VBBi ZBBi fBBi fLOi PLOi ZiLO DCRLO1 PIFo LORFo VSWRIFo SBSIFo mA ms VPON VPDN IPON IPDN V V V mA mA Note: 1) Required LO level is a function of the LO frequency Rev. A2: 04.10.1995 Advanced Information 3 (6) U2891B Electrical Characteristics: Mixer TELEFUNKEN Semiconductors VS = 3 V, fLO2 = 800 MHz, fIF = 100 MHz, PLO2 = - 10dBm, system impedance Zo = 50 W, Tamb = 25 C, reference point Pin 10, unless otherwise specified Parameters Operating frequencies RFO frequency LO2 frequency Isolation LO2 spurious at RFo Test Conditions / Pin Pin 16 Pin 9 Pin 9-16 PiLO = - 10 to 0 dBm Pin 16-9 Symbol RFO fLO2 ISLO2-RFo ISRFo-LO2 Min. 50 50 Typ. Max. 2500 2500 Unit Ad ro nic C RFo to LO2 Output level Output compression point Pin 16 RPo = R Input level Input compression point 1) Pins 11 and 12 Input LO2 Pin 9 Third order input Pins 11 and 12 intercept point 1) Voltage standing wave ratio (VSWR) Input IF Pins 11 and 12 Input LO2 Pin 9 Output RF Pin 16 Conversion power gain RL = 50 W Noise Figure (SSB) 2) PiLO = - 6 dBm Power-down mode Supply current VPD v 0.5 V Pin 13 Settling time CSPD 100 pF, CLO = 100 pF, CRFo = 1 nF Power down voltage Pin 13 "Power on" VS = 3.5 to 5.5 V VS = 2.7 to 3.5 V "Power down" Power down current Power on Power down Note: 1) with 50 W termination resistor at Pin 11 2) without termination resistor CPo - 1 dB CPi - 1dB PLO2 PiIIP3 nt s VS - 0.5 VS om po ne VSWRIFi VSWRLO2 VSWRRF PGC NF50 IPD tS VPON VPDN IPON IPDN 4 (6) Advanced Information Gm bH - 30 tbd. -7 -15 -10 -6 tbd. tbd. tbd. 9 13 <5 10 VS +0.5 VS +0.5 1 0.15 <1 MHz MHz dBm dB dBm dBm dBm dBm dB dB mA ms V V V mA mA Rev. A2: 04.10.1995 TELEFUNKEN Semiconductors U2891B Package SSO24 SSO24 Remarks Rail, MOQ 690 pcs. Tape & reel, MOQ 4000 pcs. Ordering Information Extended Type Number U2891B-AFS U2891B-AFSG3 Dimensions in mm Package: SSO-24 om po ne Rev. A2: 04.10.1995 nt s 95 9943 Ad ro nic C Gm bH 5 (6) Advanced Information U2891B Ozone Depleting Substances Policy Statement It is the policy of TEMIC TELEFUNKEN microelectronic GmbH to TELEFUNKEN Semiconductors 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 6 (6) Ad ro nic C om po ne nt s Advanced Information Gm bH Rev. A2: 04.10.1995 |
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