TR F1 TRF1222 222 www.ti.com SLWS171A – APRIL 2005 – REVISED DECEMBER 2005 3.5-GHz Integrated Up-Converter FEATURES KEY SPECIFICATIONS • • • • • • • • • • Performs Up-Conversion in 3.5-GHz Radios (3300-3800 MHz) Integrated IF amplifier, Mixer and LO Buffer Amplifier Provision for external Image Reject / Band-Pass Filter TTL Switched Attenuator For Gain Control TTL Controlled Amplifier Power Down RF Frequency Range: 3300-3800 MHz 18 dB of Gain with 16-dB Digital Attenuator Output P-1dB: +14 dBm, Typical Output IP3: +24 dBm, Typical LO Drive Level = 0 dBm, Typical DESCRIPTION The TRF1222 up-converts a UHF IF signal to an RF signal in the 3300 to 3800 MHz range for 3.5-GHz radio applications. The TRF1222 has 18 dB of gain and an output P-1dB of 14 dBm, typical. A TTL compatible, 1-bit 16-dB digital attenuator is provided for gain control and the IF and RF amplifiers can be shut off via a TTL control signal for power critical or TDD applications. In order to provide system requirements for LO/spurious rejection, the TRF1222 offers a signal path to an off-chip band-pass filter. Specifications are provided assuming an in-band 2-dB insertion loss filter. The TRF1222 is designed to complete the second up-conversion in Texas Instruments complete 3.5-GHz chip set. The linear nature of the up-converter makes it ideal for complex modulations schemes such as high order QAM or OFDM. BPF RFI MXRO Mixer RF AMPLIFIER VGA IFIP BALUN RFO IFIN LOP Power Supply LON LO Buffer −VNEG VDD UCEN UCATTN Figure 1. Block Diagram Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2005, Texas Instruments Incorporated TRF1222 www.ti.com SLWS171A – APRIL 2005 – REVISED DECEMBER 2005 DEVICE INFORMATION 32 31 30 29 28 27 26 IFADJ VDDIF RFI GND GND GND VDD1 GND LPCC−32 PACKAGE (TOP VIEW) 25 MXRADJ VDD2 2 23 UCEN GND 3 22 MXRO UCATTN 4 21 GND GND 5 20 IFIN RFO 6 19 IFIP LOADJ1 7 18 VDDIFP VNEG 8 17 VDDIFN 13 14 15 16 LON 12 LOP 11 GND LOADJ2 10 GND 9 GND 24 GND 1 VDDLO IADJ TERMINAL FUNCTIONS TERMINAL NO. NAME 1 IADJ 2 VDD2 3, 5, 9, 11, 15, 16, 21, 28,29, 30, 32 GND I/O TYPE DESCRIPTION Not connected for normal operation. Amplifier bias adjustment. Do not ground this pin or connect to any other pin. I Power RF amplifier bias 5 V Ground 4 UCATTN I Digital Logic high is high gain; logic low reduces gain by 16 dB. Normally set high. 6 RFO O Analog RF output from RF amplifier 7 LOADJ1 8 VNEG 10 LOADJ2 12 LOP I Analog LO input, positive, internally ac-coupled 13 LON I Analog LO input, negative, internally ac-coupled 14 VDDLO I Power Positive power for LO amplifier, 5 V 17 VDDIFN I Analog VDD supply for IF amplifier, negative, 5 V 18 VDDIFP I Analog VDD supply for IF amplifier, positive, 5 V 19 IFI P I Analog IF input, positive, dc-coupled, typical dc voltage is 1.2 V 2 Not connected for normal operation. LO common gate bias adjustment. Do not ground this pin or connect to any other pin. I Power Negative bias used for enable circuitry -5 V. This pin can be grounded if the user does not use the UCEN pin to turnoff the amplifier. If the VNEG is grounded the UCEN pin should be tied high. Not connected for normal operation. LO amplifier bias adjustment. Do not ground this pin or connect to any other pin. TRF1222 www.ti.com SLWS171A – APRIL 2005 – REVISED DECEMBER 2005 TERMINAL FUNCTIONS (continued) TERMINAL NO. NAME I/O TYPE DESCRIPTION 20 IFI N I Analog IF input, negative, dc-coupled typical dc voltage is 1.2 V 22 MXRO O Analog Output of mixer (after balun) 50-Ω impedance with high impedance dc ground. 23 UCEN I Digital Set high to enable IF amplifier and RF amplifiers 24 MXRADJ O Analog Normally grounded. Provide 0-Ω jumper to ground. 25 IFADJ 26 VDDIF I Power Positive supply for IF bias circuitry 5 V 27 RFI I Analog Input to RF amplifier, 50-Ω impedance, internally ac-coupled 31 VDD1 I Power RF amplifier bias 5 V Back GND Not connected for normal operation. IF amplifier bias adjustment. Do not ground this pin or connect to any other pin. Back of package has metal base that must be grounded for thermal and RF performance. ABSOLUTE MAXIMUM RATINGS over operating free-air temperature range (unless otherwise noted) VALUE UNIT VDD Positive dc supply voltage 0 to 5.5 V -VDD Negative dc supply voltage -5.5 to 0 V PIN RF input power 10 dBm TJ Junction temperature 200 °C PD Power dissipation 1 W Digital input pins -0.3 to 5.5 V 9.01 °C/W θjc Thermal resistance junction-to-case (1) Tstg Storage temperature -40 to 105 °C Top Operating temperature -40 to 85 °C 260 °C Lead temperature (40 Sec Max) (1) Thermal resistance is junction to ambient assuming thermal pad with 16 thermal vias under package metal base. See the recommended PCB layout. ELECTRICAL CHARACTERISTICS PARAMETER TEST CONDITIONS MIN TYP MAX UNIT DC CHARACTERISTICS VDD Positive supply voltage IDD Positive supply current (total) 4.75 VNEG Negative supply voltage INEG Negative supply current IVDD2 Supply current RF 2, pin 2 50 mA ILO Supply current, LO, pin 14 50 mA IIF Supply current, IF 47 mA IVDD1 Supply current RF1, pin 31 28 mA VIH Input high voltage VIL Input low voltage 0.8 V IIH Input high current 300 µA IIL Input low current –50 µA -5.25 Pin 17, 18, and 26 combined 2.5 5 5.25 V 175 200 mA -5 -4.75 3 6 5 V mA V 3 TRF1222 www.ti.com SLWS171A – APRIL 2005 – REVISED DECEMBER 2005 ELECTRICAL CHARACTERISTICS Unless otherwise stated VDD = 5 V, FRF = 3500 MHz, IDD = 160 mA, VNEG = -5 V, FRF = 3.5 GHz, TA = 25°C PARAMETER TEST CONDITIONS MIN TYP MAX IF input frequency IRF RF output frequency G Gain UCATTN = TTL high, input IF impedance is 100-Ω differential 22 dB ∆ATTN Switched attenuator range UCATTN from high-to-low 16 dB GNB Gain flatness / 6 MHz OP-1dB Output power at 1-dB compression, high gain UCATTN = TTL high 14 OIP3 Output 3rd order intercept point, high gain UCATTN = TTL high 24 Gain - IF to MXRO UCATTN = TTL high 1 dB Gain - RFI to RFO UCATTN = TTL high 21 dB LO input power Referenced to 100-Ω differential LO to RFO leakage (1) LO input = 0 dBm PLO (1) 4 325 UNIT FIF 3300 MHz 3800 0.2 Performance is sensitive to impedance termination and board layout. -3 0 -5 MHz dB dBm dBm 3 dB dBm TRF1222 www.ti.com SLWS171A – APRIL 2005 – REVISED DECEMBER 2005 APPLICATION INFORMATION A typical application schematic is shown in Figure 3. The PCB material recommendations are shown in Table 1 and Figure 2. Table 1. PCB Recommendations Board Material Board Material Core Thickness FR4 10 mil Copper Thickness (starting) 1 oz Prepreg Thickness 8 mil Recommended Number of Layers Via Plating Thickness Final Plate Final Board Thickness 4 ½ oz White immersion tin 33–37 mil 5 TRF1222 www.ti.com SLWS171A – APRIL 2005 – REVISED DECEMBER 2005 0.60 TYP 3.75 0.23 TYP 0.50 TYP PIN 1 3.75 1.00 3.50 1.00 DIA 0.38 TYP 0.25 TYP 3.50 SOLDER MASK: NO SOLDERMASK UNDER CHIP, ON LEAD PADS OR ON GROUND CONNECTIONS. 16 VIA HOLES, EACH 0.38 mm. DIMENSIONS in mm NOTE: Top and bottom surface finish: copper flash with 50–70 µin white tin immersion. Figure 2. PCB Construction and Via Cross Section 6 TRF1222 www.ti.com SLWS171A – APRIL 2005 – REVISED DECEMBER 2005 VDD 0.01 F 100pF 100pF 26 RFI 25 IFADJ 27 VDDIF 28 GND 29 GND 30 GND 31 VDD1 BASE GND 32 1 BPF Z = 50 MXRADJ 24 IADJ 0(A) 23 2 VDD2 UCEN 3 GND MXRO 22 4 UCATTN GND 21 5 GND IFIN 20 6 RFO IFIP 19 7 LOADJ1 VDDIFP 18 8 VNEG VDDIFN 17 UCEN 100pF 0.01 F UCATTN 9 10 11 12 13 14 15 GND GND VDDLO LON LOP GND 100pF LOADJ2 0.01 F GND RF OUT 1000pF IF IN N 1000pF IF IN P 33 nH(B) VDD 33 nH(B) 100pF 0.01 F 16 1 F −VNEG LO IN P 100pF 0.01 F LO IN N Place 100pF capacitors as close as possible to package pins. A. Connect pin 24 to ground through a 0-Ω resistor. B. Place 33-nH inductors close to package pins. C. Place 100-pF capacitors close as possible to package pins. Figure 3. Recommended Application Schematic 7 TRF1222 www.ti.com SLWS171A – APRIL 2005 – REVISED DECEMBER 2005 Figure 4. Package Outline 5 mm x 5 mm LPCC 32-Pin Leadless Package 8 PACKAGE OPTION ADDENDUM www.ti.com 10-Feb-2006 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty TRF1222IRTMR ACTIVE QFN RTM 32 3000 Green (RoHS & no Sb/Br) CU SN Level-2-260C-1 YEAR TRF1222IRTMRG3 ACTIVE QFN RTM 32 3000 Green (RoHS & no Sb/Br) CU SN Level-2-260C-1 YEAR TRF1222IRTMT ACTIVE QFN RTM 32 250 Green (RoHS & no Sb/Br) CU SN Level-2-260C-1 YEAR TRF1222IRTMTG3 ACTIVE QFN RTM 32 250 Green (RoHS & no Sb/Br) CU SN Level-2-260C-1 YEAR Lead/Ball Finish MSL Peak Temp (3) (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. 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