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| RF2466 6 Typical Applications * CDMA/FM Cellular Systems * Supports Dual-Mode AMPS/CDMA * Supports Dual-Mode TACS/CDMA * General Purpose Downconverter * Commercial and Consumer Systems * Portable Battery-Powered Equipment 3V CDMA/FM MIXER Product Description 3.75 2 0.45 0.28 0.75 0.50 0.80 TYP 1 1 0.75 0.65 4.00 1.00 0.90 NOTES: 1 Shaded Pin is Lead 1. 2 Dimension applies to plated terminal and is measured between 0.10 mm and 0.25 mm from terminal tip. 0.05 0.00 Dimensions in mm. The terminal #1 identifier and terminal numbering convention 3 shall conform to JESD 95-1 SPP-012. Details of terminal #1 identifier are optional, but must be located within the zone indicated. The identifier may be either a mold or marked feature. 4 5 Pins 1 and 9 are fused. Package Warpage: 0.05 max. Optimum Technology Matching(R) Applied u Package Style: LCC, 16-Pin, 4x4 Si BJT Si Bi-CMOS GaAs HBT SiGe HBT GaAs MESFET Si CMOS Features * Dual Mode CDMA/AMPS * Dual Mode JCDMA/TACS * Digitally Selectable IF Outputs * 500MHz to 1100MHz Operation * Power Down Mode CDMA- CDMA+ GND GND 1 IF SELECT 2 PD 3 LO+ 4 5 LO- 16 15 14 13 12 FM11 VCC 10 GND 6 GND 7 MIXER IN 8 BYPASS GND FM+ 9 Ordering Information RF2466 RF2466 PCBA 3V CDMA/FM Mixer Fully Assembled Evaluation Board Functional Block Diagram RF Micro Devices, Inc. 7628 Thorndike Road Greensboro, NC 27409, USA Tel (336) 664 1233 Fax (336) 664 0454 http://www.rfmd.com Rev A7 010717 6-7 MIXERS The RF2466 is a receiver dual downconverter designed for the receive section of dual-mode CDMA/FM cellular applications. It is designed to downconvert RF signals while providing 14dB gain in CDMA mode and 7dB gain in FM mode. Also, it features IF output selection and power down mode. Noise Figure, IP3, and other specs are designed to be compatible with the IS-95 Interim Standard for CDMA cellular communications. The IC is manufactured on an advanced Silicon Bipolar process. 3.75 + 1.60 4.00 6 12 1.50 SQ INDEX AREA 3 3.20 RF2466 Absolute Maximum Ratings Parameter Supply Voltage Operating Ambient Temperature Storage Temperature Rating -0.5 to +5 -40 to +85 -40 to +150 Unit VDC C C Caution! ESD sensitive device. RF Micro Devices believes the furnished information is correct and accurate at the time of this printing. However, RF Micro Devices reserves the right to make changes to its products without notice. RF Micro Devices does not assume responsibility for the use of the described product(s). Parameter Overall RF Frequency Range LO Frequency Range IF Frequency Range Conversion Gain Specification Min. Typ. Max. Unit Condition T = 25 C, VCC =3.0V, RF=881MHz, LO=966MHz @ 0dBm, IF1= CDMA, IF2=FM 12.5 5 6 MIXERS Noise Figure Input VSWR Input IP3 Input P1dB MIX IN to IF1, IF2 Rejection IF1, IF2 Output Freq. Range Output Impedance +3 +3 200 to 1000 500 to 1100 0.1 to 250 14 7 9 10.5 <1.5:1 <2:1 +7 +7 -7 -4 35 70 to 100 >1 870 -3 20 15 <2:1 2.5 3.0 16 12 0 MHz MHz MHz dB dB dB dB dBm dBm dBm dBm dB MHz k dBm dB dB IF1, 1k balanced load. IF2, 870 load. IF1 single sideband. IF2 single sideband IF1 with external matching IF2 with external matching IF1 IF2 IF1 IF2 With external IF interface network IF1, balanced, open collector IF2, single ended, with external inductor. LO Input LO Input Range LO IN to RF Input Rejection LO IN to IF1, IF2 Rejection LO Input VSWR -10 IF1 with external matching network IF2 with external matching network 4.0 21 16 5 V mA mA A Power Supply Voltage Current Consumption 2.7 IF1 selected IF2 selected ENABLE=0 6-8 Rev A7 010717 RF2466 Pin 1 2 Function GND IF SELECT Description Ground connection. For best performance, keep traces physically short and connect immediately to ground plane. Control line for IF out select. A logic "low" enables the FM output. A logic "high" enables the CDMA output. The threshold voltage is 1.6V, and the pin draws less than 50A when selected. Interface Schematic 50 k C1 3 PD Power down pin. A logic "low" (<1.6V) turns the part off. A logic "high" (>1.6V) turns the part on. In addition, pin 2 (IF SELECT) should also be taken low during power down. 50 k PD 4 LO+ Mixer LO balanced input pin. For single-ended input operation, this pin is used as an input and pin 5 is bypassed to ground. LO IN+ LO IN- 5 6 7 LOGND MIXER IN Same as pin 4 except complementary input. Ground connection for the mixer. For best performance, keep traces physically short and connect immediately to ground plane. Mixer RF input pin. This pin is internally DC-biased and should be DC blocked if connected to a device with DC present. External matching network sets RF and IF impedance for optimum performance. See pin 4. 6 MIX IN 8 BYPASS 9 10 11 GND GND VCC Internal voltage reference. External RF and IF bypassing is required. The trace length between the pin and the bypass capacitors should be minimized. The ground side of the bypass capacitors should connect immediately to ground plane. Same as pin 1. Same as pin 1. Supply voltage for the mixers, bias circuits, and control logic. External RF and IF bypassing is required. The trace length between the pin and the bypass capacitors should be minimized. The ground side of the bypass capacitors should connect immediately to ground plane. VCC2 BIAS LO OUT 12 13 FMFM+ Same as pin 13, except complimentary output. For typical single ended operation, this pin is connected directly to VCC. FM IF output pin. This is a balanced output, but is typically used as a single-ended output. The internal circuitry, in conjunction with an external matching/bias inductor to VCC, sets the operating impedance. This inductor is typically incorporated in the matching network between the output and IF filter. The net output impedance, including the external inductor, is about 870 at 85MHz. Because this pin is biased to VCC, a DC blocking capacitor must be used if the IF filter input has a DC path to ground. See Application Schematic. Same as pin 1. CDMA IF output pin. This is a balanced output. The internal circuitry, in conjunction with an external matching/bias inductor to VCC, sets the operating impedance. This inductor is typically incorporated in the matching network between the output and IF filter. The net output impedance, including the external inductor, at 85MHz is higher than 1k, even though the part is designed to drive a 1k load. Because this pin is biased to VCC, a DC blocking capacitor must be used if the IF filter input has a DC path to ground. See Application Schematic. Same as pin 15, except complementary output. See pin 13. IF2+ IF2- 8.5 pF 2.1 k 14 15 GND CDMA+ IF1+ GND2 IF1- 1.2 pF 1.2 pF 16 CDMA- See pin 15. Rev A7 010717 6-9 MIXERS RF2466 Pin Pkg Base Function GND Description Ground connection. The backside of the package should be soldered to a top side ground pad which is connected to the ground plane with multiple vias. Interface Schematic 6 MIXERS 6-10 Rev A7 010717 RF2466 Application Schematic L CDMA Saw Filter CDMA IF OUT L L FM Saw Filter FM IF OUT 1 16 15 14 13 12 11 10 IF SELECT PD 10 pF LO IN 8.2 nH 200 2 3 4 5 6 7 8 L VCC 33 nF 1 F 9 6 MIXERS 3.3 pF 33 nF 33 nF 15 nH 15 nH MIX IN Rev A7 010717 6-11 RF2466 Evaluation Board Schematic (Download Bill of Materials from www.rfmd.com.) P1 P1-1 + P2 VCC GND NC P2-3 P2-1 1 2 3 IF SEL GND ENABLE 1 2 C10 1 uF L3 3.3 uH C5 33 nF P1-3 C3 9 pF L2 390 nH VCC 50 strip R1 33 R2 68 T1 **XFMER VCC L4 3.3 uH IF SEL ENABLE 3 J3 CDMA IF1 C2 10 pF 50 strip C4 9 pF R3 10 J4 FM IF2 1 2 3 4 16 15 14 13 12 11 L1 150 nH C1 33 nF VCC 6 MIXERS 50 strip J3 2 1 4 IN F1 3 6 10 5 6 7 8 9 17 C9 33 nF L7 15 nH J1 LO IN 50 strip C6 10 pF C7 3.0 pF L5 8.2 nH R4 200 GND GND GND GND OUT L8* TBD 50 strip C8 33 nF L6 15 nH 5 J2 MIXER IN **Core: Fair-Rite Balun #2865002402 L12: 3 turns #30 AWG (Green) L34: 12 turns #32 AWG (Red) One turn = one pass through BOTH holes. Winding starts and finishes on same end of core. L12 and L34 exit opposite ends of core. F1: filter 2466400 Rev A Enable 0 0 1 1 IF Select 0 1 0 1 Stage Off Off FM CDMA 6-12 Rev A7 010717 RF2466 Evaluation Board Layout Board Size 3.070" x 2.928" Board Thickness 0.056", Board Material FR-4, Multi-Layer 6 MIXERS Rev A7 010717 6-13 RF2466 CDMA Gain and Noise Figure versus LO Drive 14.0 13.0 12.0 11.0 10.0 CDMA Gain (dB) CDMA NF (dB) 13.0 12.5 12.0 10.0 11.5 10.0 12.0 CDMA IIP3 and Noise Figure versus LO Drive 14.0 11.0 12.0 CDMA Gain (dB) CDMA NF (dB) 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 -10.0 11.0 10.5 10.0 9.5 CDMA NF (dB) 8.0 8.0 6.0 7.0 4.0 6.0 9.0 8.5 8.0 -9.0 -8.0 -7.0 -6.0 -5.0 -4.0 -3.0 -2.0 -1.0 0.0 5.0 2.0 4.0 -10.0 0.0 -9.0 -8.0 -7.0 -6.0 -5.0 -4.0 -3.0 -2.0 -1.0 0.0 6 8.0 LO Drive (dBm) LO Drive (dBm) FM Gain and Noise Figure versus LO Drive 16.0 9.0 8.0 14.0 6.0 FM Gain (dB) FM NF (dB) 7.0 6.0 FM IIP3 and Noise Figure versus LO Drive 15.0 14.0 FM IIP3 (dBm) FM NF (dB) 12.0 11.0 10.0 9.0 8.0 7.0 6.0 -9.0 -8.0 -7.0 -6.0 -5.0 -4.0 -3.0 -2.0 -1.0 0.0 13.0 MIXERS 7.0 FM NF (dB) 5.0 4.0 3.0 4.0 10.0 3.0 2.0 8.0 1.0 2.0 1.0 0.0 -10.0 6.0 -9.0 -8.0 -7.0 -6.0 -5.0 -4.0 -3.0 -2.0 -1.0 0.0 0.0 -10.0 LO Drive (dBm) LO Drive (dBm) 6-14 Rev A7 010717 FM NF (dB) 12.0 FM IIP3 (dBm) FM Gain (dB) 5.0 CDMA NF (dB) 9.0 CDMA IIP3 (dBm) 9.0 CDMA IIP3 (dBm) |
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