3.4 to 3.5 GHz, 7.0V, +24 dBm W-CDMA Power Amplifier August 2007 - Rev 02-Aug-07 CMM3566-LC Features Functional Block Diagram 7.0V Bias Voltage +24 dBm Linear Output Power (W-CDMA) 30 dB Gain at Operating Output Tested Under Digital Modulation (W-CDMA) Leadless Chip Carrier (LCC) Package Ground Tab 8 RF OUT/+Vd3 Vg3 1 General Description The CMM3566-LC is a 7.0V, +24 dBm, linear power amplifier intended for use in PCS handsets and wireless local loop subscriber units and base stations. The amplifier is biased to meet the requirements of linear modulation systems of W-CDMA. The CMM3566-LC is packaged in a low-cost, space efficient, power package that provides excellent electrical stability and low thermal resistance. The part requires minimal external circuitry for bias and matching to reduce space and cost. Vg2 2 7 RF OUT/+Vd3 Vg1 3 6 Vd2 RF IN 4 5 Vd1 Ground Tab Applications Wireless Local Loop Subscriber Units Wireless Local Loop Base Stations Absolute Maximum Ratings Parameter Rating Parameter Rating Parameter Rating Drain Voltage (+Vd) Drain Current (Id) RF Input Power DC Gate Voltage (-Vg) +8 V* 1.0 A 0 dBm* -4.0 V* Power Dissipation Thermal Resistance Storage Temperature BVGD 5W 20°C/W -65°C to +150°C 18 V Operating Temperature Channel Temperature Soldering Temperature -30°C to +90°C 150°C 240°C for 5 Sec. * Max (+Vd ) and (-Vg ) under linear operation. Max potential difference across the device at 1dB gain compression point (2Vd +|-Vg1) not to exceed the minimum breakdown voltage (BVGD ) of +18V. Recommended Operating Conditions Parameter Typ Units Parameter Typ Units Drain Voltage (+Vd) 7.0 Volts Operating Temperature (PC Board) -40 to +70 °C Application Information The CMM3566-LC is a three stage amplifier that requires a positive and a negative supply voltages for proper operation. It is essential when turning on the device that the negative supply be applied before the positive supply. When turning the device off, the positive supply should be removed before the negative supply is removed. The CMM3566-LC can be operated over a range of supply voltages and bias currents. It is important that the maximum power dissipation specification for the package be observed at all times and that the maximum voltage across the device not be exceeded. Circuit Design Considerations Biasing Three negative voltages are needed to set the bias current of the 3-stage GaAs FET power amplifier. The first stage bias is controlled via Vg1. The second stage bias is controlled via Vg2. The output stage is controlled via Vg3. The recommended divider networks for each gate bias shown in the schematic. The positive supply voltage is applied to pins 5, 6, 7 and 8. The negative voltage supplies control the quiescent current of the device. The quiescent current needs to be set at the level specified in order to get the guaranteed RF performances. Negative bias voltages can also be used to control the gain, the output power and the operating current during operation of the device. Matching Circuits Output matching circuit is required to achieve the output power and gain guaranteed. Mimix’s recommendation for the topology of the matching circuit is shown in the schematic diagram of the test circuit in this data sheet. In providing both the negative and positive bias voltages, it is important to provide adequate de-coupling between the RF signal and the DC voltages. Inadequate de-coupling could result in low output power, low gain or oscillation. Mimix recommends the bias circuits shown in the evaluation circuit . – Continued on Page 2 – Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com Page 1 of 4 Characteristic Data and Specifications are subject to change without notice. ©2007 Mimix Broadband, Inc. Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept their obligation to be compliant with U.S. Export Laws. 3.4 to 3.5 GHz, 7.0V, +24 dBm W-CDMA Power Amplifier August 2007 - Rev 02-Aug-07 CMM3566-LC Electrical Characteristics Unless otherwise specified, the following specifications are guaranteed at 3.45 GHz, room temperature with drain voltage (+Vd) = 7.0V in Mimix test fixture. Parameter Condition Frequency Range Gain Gain Variation Min 3.4 26 @ Digital power output Over supply voltage Over temperature 2nd (Pout = +22 to +26 dBm) 3rd (Pout = +22 to +26 dBm) and above ±2.7 MHz from carrier (Pout = +22 dBm, Data Rate = 4.096Mc/Sec ±5.25 MHz from carrier (Pout = +22 dBm, Data Rate = 4.096Mc/Sec ±2.7 MHz from carrier (Pout = +24 dBm, Data Rate = 4.096Mc/Sec ±5.25 MHz from carrier (Pout = +24 dBm, Data Rate = 4.096Mc/Sec 10 MHz Bandwidth Vdd = 7.0 V Harmonics* Linear Output Power Linear Output Power Wideband Noise Noise Figure Return Loss Input Return Loss Output Positive Supply Current (Id) Quiescent Current (Iq) Negative Supply Current (-Ig) Max 3.5 31 Pout = +24 dBm No RF Includes external resistor divider Into external resistor divider -0.3 Units 28.5 2 0.03 -35 -40 -43 -30 -35 -40 GHz dB dB/V dB/°C dBc dBc dBc/30 KHz -50 -48 dBc/30 KHz -38 -35 dBc/30 KHz -47 -45 dBc/30 KHz 5 -14 -14 540 520 2.0 4.0 dBc dB dB dB mA mA mA -1.5 -3.0 V -68 -10 -10 Negative Supply Voltage (-Vg) Typ * The integrity of the input signal at an offset of 5.25 MHz has an adjacent channel performance of not greater than -52 dBc. – Continued from Page 1 – Thermal Modulation When biased as specified, the CMM3566-LC will achieve the required adjacent channel response for the W-CDMA linearity. Mimix tests each product under digital modulation to ensure compliance to system specifications. 1. The copper pad on the backside of the CMM3566-LC must be soldered to the ground plane. S-Parameters Vdd = 7V, ID 1 & 2 = 200, ID 3 = 300 Frequency (GHz) 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0 S11 S21 S12 S22 Mag ANG Mag ANG Mag ANG Mag ANG 0.646 0.659 0.732 0.778 0.781 0.751 0.770 0.770 0.781 0.772 0.757 0.640 0.447 0.516 0.518 0.131 0.423 0.578 136.623 54.979 -19.826 -82.663 -140.684 155.653 14.916 11.996 -40.876 -81.765 -121.242 176.329 86.466 0.714 -69.213 -149.583 -13.907 -59.337 2.393 1.283 5.119 8.080 10.458 12.110 11.272 11.158 11.715 15.438 21.302 27.182 29.193 28.413 25.542 24.348 19.130 14.619 20.992 17.015 -67.405 -171.314 93.318 -2.432 -176.757 -179.876 106.441 32.091 -51.262 -150.627 105.943 4.707 -94.768 164.543 58.878 -37.638 0.002 0.003 0.004 0.005 0.005 0.007 0.006 0.006 0.007 0.008 0.010 0.011 0.010 0.011 0.010 0.012 0.011 0.008 -19.228 -80.195 -158.535 132.866 67.738 0.028 -124.480 -126.766 173.071 128.121 68.938 -13.377 -79.627 -137.593 152.682 93.523 18.708 -52.138 0.804 0.682 0.420 0.382 0.533 0.650 0.874 0.880 0.911 0.877 0.771 0.756 0.690 0.471 0.383 0.268 0.257 0.278 -23.817 -89.402 -138.407 -152.437 150.599 69.917 -61.986 -63.734 -116.517 -177.609 103.364 13.731 -53.854 -91.983 -99.415 -121.022 -98.953 -134.978 Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com Page 2 of 4 Characteristic Data and Specifications are subject to change without notice. ©2007 Mimix Broadband, Inc. Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept their obligation to be compliant with U.S. Export Laws. 3.4 to 3.5 GHz, 7.0V, +24 dBm W-CDMA Power Amplifier August 2007 - Rev 02-Aug-07 CMM3566-LC Typical Performance G ai n and R eturn L oss vs F requency L i near O utput Power vs F requency Id & Adjacent Channel Power vs Output Power (2.7 MHz from Carrier) Id & Adjacent Channel Power vs Output Power (5.25 MHz from Carrier) Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com Page 3 of 4 Characteristic Data and Specifications are subject to change without notice. ©2007 Mimix Broadband, Inc. Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept their obligation to be compliant with U.S. Export Laws. 3.4 to 3.5 GHz, 7.0V, +24 dBm W-CDMA Power Amplifier August 2007 - Rev 02-Aug-07 CMM3566-LC Recommended Matching Topology Note: This schematic represents the topology of the matching circuit recommended by Mimix. Physical Dimensions Ordering Information The CMM3566-LC is available in a surface mount plastic LCC-8 package and devices are available in tube or tape and reel. Part Number for Ordering Package CMM3566-LC-0000 CMM3566-LC-000T PB-CMM3566-LC-0000 LCC-8 surface mount power package LCC-8 surface mount power package in tape and reel Evaluation Board with SMA connectors for CMM3566-LC Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com Page 4 of 4 Characteristic Data and Specifications are subject to change without notice. ©2007 Mimix Broadband, Inc. Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept their obligation to be compliant with U.S. Export Laws.