PRELIMINARY DATA SHEET SKY73420-11: 650-950 MHz Broadband, Application Configurable High Gain and Linearity Diversity Downconversion Mixer Applications IFA+ 2G/3G/4G base station transceivers: GSM/EDGE, CDMA, UMTS/WCDMA, LTE Land mobile radio High performance radio links IFA– RLOA BS0 RIFA BS1 RFA Features LO Operating frequency range: 650 to 950 MHz IF frequency range: 150 to 400 MHz Conversion gain: 8.1 dB Input IP3: up to +25.6 dBm Noise Figure: 9.3 dB Power-down mode Integrated LO drivers Integrated low loss RF baluns High linearity IF amplifiers Application tuneability Small, QFN (36-pin, 6 x 6 mm) package (MSL3, 260 C per JEDEC J-STD-020) Skyworks Green™ products are compliant with all applicable legislation and are halogen-free. For additional information, refer to Skyworks Definition of Green™, document number SQ04-0074. RFB PWRDN RIFB IFB+ IFB– RLOB S2760 Figure 1. SKY73420-11 Block Diagram Description The SKY73420-11 is a fully integrated diversity mixer that includes Local Oscillator (LO) drivers, high linearity mixers, and large dynamic range Intermediate Frequency (IF) amplifiers. Low loss RF baluns have also been included to reduce design complications and lower system cost. The SKY73420-11 features an IIP3 of up to +25.6 dBm and a Noise Figure (NF) of 9.3 dB, making the device an ideal solution for high dynamic range systems such as 2G/3G/4G base station receivers. The SKY73420-11 has been designed for optimum long-term reliability. The SKY73420-11 diversity downconversion mixer is provided in a compact, 36-pin Quad Flat No-Lead (QFN) package. A functional block diagram is shown in Figure 1. The pin configuration and package are shown in Figure 2. Signal pin assignments and functional pin descriptions are provided in Table 1. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202967A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 19, 2013 1 VCC_RFA RIFA N/C IFA– IFA+ N/C VCC_IFA RLOA N/C PRELIMINARY DATA SHEET • SKY73420-11 DOWNCONVERSION MIXER 36 35 34 33 32 31 30 29 28 RFA 1 27 N/C GND 2 26 N/C GND 3 25 BS1 VCC_LO 4 24 BS0 Ground Pad GND RFB 9 19 LO 10 11 12 13 14 15 16 17 18 N/C VCC_LOIN 20 RLOB 21 8 N/C 7 GND VCC_IFB GND IFB– PWRDN IFB+ N/C 22 N/C 23 6 RIFB 5 VCC_RFB N/C VCC_LO S2761 Figure 2. SKY73420-11 Pinout – 36-Pin QFN (Top View) Table 1. SKY73420-11 Signal Descriptions Pin # 1 Name RFA Description RF channel A input Pin # 19 Name LO Description Local oscillator input 2 GND Ground 20 GND Ground 3 GND Ground 21 VCC_LOIN DC supply, +5 V 4 VCC_LO DC supply, +5 V 22 PWRDN Power-down mode enable 5 N/C No internal connection 23 N/C No internal connection 6 VCC_LO DC supply, +5 V 24 BS0 Band select 0 control 7 GND Ground 25 BS1 Band select 1 control 8 GND Ground 26 N/C No internal connection 9 RFB RF channel B input 27 N/C No internal connection 10 VCC_RFB DC supply, +5 V 28 N/C No internal connection 11 RIFB IF channel B bias control 29 RLOA LO channel A bias control 12 N/C No internal connection 30 VCC_IFA DC supply, +5 V 13 IFB+ IF channel B positive output 31 N/C No internal connection 14 IFB– IF channel B negative output 32 IFA+ IF channel A positive output 15 N/C No internal connection 33 IFA– IF channel A negative output 16 VCC_IFB DC supply, +5 V 34 N/C No internal connection 17 RLOB LO channel B bias control 35 RIFA IF channel A bias control 18 N/C No internal connection 36 VCC_RFA DC supply, +5 V – Ground pad Bottom ground pad (Note 1) Note 1: Bottom ground pad serves as a key electrical and thermal ground. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 August 19, 2013 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 202967A PRELIMINARY DATA SHEET • SKY73420-11 DOWNCONVERSION MIXER Functional Description LO Buffers The SKY73420-11 is a high gain diversity mixer, optimized for base station receiver applications. The device consists of two diversity channels, each consisting of a low loss RF balun, high linearity passive mixer, and a low noise IF amplifier. The LO buffers allow the input power of the SKY73420-11 to be driven in the range of –6 to +6 dBm. The LO section has been optimized for 800 to 1350 MHz. However, the LO can be driven over a wide frequency range with only slight degradation in performance. The SKY73420-11 also includes a power-down feature used to lower the supply current for standby operation (refer to Tables 4 and 5): PWRDN Logic: Mixer State: High Standby (low power mode) Low Full operation LO amplifiers are also included that allow the SKY73420-11 to connect directly to the output of a Voltage Controlled Oscillator (VCO). This eliminates the extra gain stages needed by most discrete passive mixers. Pins 17 (RLOB) and 29 (RLOA) allow for external biasing of the LO driver bias currents to trade off linearity for the core passive mixer current. Power-Down Mode The SKY73420-11 also includes a low current power-down mode controlled by pin 22 (PWRDN). When this pin is at a logic high level, the power-down function is enabled with the total mixer current under 45 mA. IF Amplifier RF Baluns and Passive Mixer The RF baluns provide a single ended input, which can easily be matched to 50 Ω using a simple matching circuit. The RF baluns offer very low loss and excellent amplitude and phase balance over a wide frequency range of 650 to 950 MHz. The high linearity mixer is a passive, double balanced mixer that provides a very low insertion loss, and excellent 3rd Order Input Insertion Point (IIP3) and linearity performance. Additionally, the balanced nature of the mixer provides for excellent port-to-port isolation. Bandselect Logic The SKY73420-11 is designed to optimize performance in four sub-bands. The particular sub-band of interest is selected by setting pin 24 (BS0) and pin 25 (BS1). The bandselect logic is provided in Table 2. Depending on the LO injection side, and the RF and IF frequencies involved, there could be multiple bandselect solutions. Table 5 identifies recommended bandselects for a number of frequency ranges. The SKY73420-11 includes high dynamic range IF amplifiers that follow the passive mixers in the signal path. The outputs require a supply voltage connection using inductive chokes. These choke inductors should be high-Q and have the ability to handle 200 mA or greater. A simple matching network allows the output ports to be matched to a balanced 200 impedance. The IF amplifiers are optimized for IF frequencies between 100 and 400 MHz. The IF amplifiers can be operated outside of this range, but with a slight degradation in performance. Pins 11 (RIFB) and 35 (RIFA) allow for external biasing of the IF amplifier bias currents to trade off linearity for the IF amplifier current. Electrical and Mechanical Specifications The absolute maximum ratings of the SKY73420-11 are provided in Table 3. The recommended operating conditions are specified in Table 4 and electrical specifications are provided in Tables 5 and 6. Table 2. SKY73420-11 Bandselect Logic BS1 (Pin 25) BS0 (Pin 24) LO Center Frequency (MHz) 0 0 *** TBD *** 0 1 *** TBD *** 1 0 *** TBD *** 1 1 *** TBD *** Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202967A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 19, 2013 3 PRELIMINARY DATA SHEET • SKY73420-11 DOWNCONVERSION MIXER Table 3. SKY73420-11 Absolute Maximum Ratings Parameter Symbol Supply voltage, +5 V (VCC_LO, VCC_RFA, VCC_RFB, VCC_IFA, VCC_IFB, VCC_LOIN) VCC Total supply current ICC Minimum Maximum Units 4.5 5.5 V 360 mA RF input power PRF +20 dBm LO input power PLO +20 dBm Operating case temperature TC +100 C Junction temperature TJ Storage case temperature TSTG Thermal resistance ΘJC –40 –40 +125 C +150 C 10.4 C/W Notes: Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other parameters set at or below their nominal value. Exceeding any of the limits listed here may result in permanent damage to the device. CAUTION: Although this device is designed to be as robust as possible, Electrostatic Discharge (ESD) can damage this device. This device must be protected at all times from ESD. Static charges may easily produce potentials of several kilovolts on the human body or equipment, which can discharge without detection. Industry-standard ESD precautions should be used at all times. Table 4. SKY73420-11 Recommended Operating Conditions Parameter Symbol Maximum Units 650 950 MHz fLO 800 1350 MHz fIF 100 400 MHz Supply voltage, +5 V VCC 4.75 5.25 V Supply current (Note 1), PWRDN = 0 V ICC LO input power PLO +6 dBm Logic levels (Note 2): high low VIN_H VIN_L VCC 0.74 V V Logic input current IL *** TBD *** *** TBD *** mA Operating case temperature (Note 3) TC –40 +100 C RF frequency range fRF LO frequency range IF frequency range Minimum Typical 5.00 310 –6 0 1.09 0 0 mA Note 1: See Table 7 for external biasing and matching components. Note 2: Logic signals are: PWRDN, BS0, and BS1. Valid logic levels must be applied. There are no internal pull-ups or pull-downs. Note 3: Case temperature measured at bottom of package where device is soldered to board. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 August 19, 2013 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 202967A PRELIMINARY DATA SHEET • SKY73420-11 DOWNCONVERSION MIXER Table 5. SKY73420-11 Electrical Specifications: General (1 of 5) (Note 1) (VCC = 4.75 to 5.25 V, TC = –40 to +100 C, PLO = –3 to +3 dBm, PWRDN = Logic “0,” Unless Otherwise Noted) Test Condition Parameter Symbol Conversion gain RF Freq Range (MHz) Min Typical Max Units IF Freq (MHz) BS1 BS0 824 to 849 200 0 1 8.1 dB 824 to 849 350 0 1 8.0 dB 830 to 862 200 1 1 dB 830 to 862 350 1 1 dB 880 to 915 200 0 1 dB 880 to 915 350 0 1 dB 698 to 716 200 1 1 dB 698 to 716 350 1 1 dB 777 to 798 200 1 1 dB 777 to 798 350 1 1 dB 824 to 849 200 0 1 9.3 11.0 dB 824 to 849 350 0 1 9.3 11.0 dB 830 to 862 200 1 1 dB 830 to 862 350 1 1 dB 880 to 915 200 0 1 dB 880 to 915 350 0 1 dB 698 to 716 200 1 1 dB 698 to 716 350 1 1 dB 777 to 798 200 1 1 dB 777 to 798 350 1 1 dB 824 to 849 200 0 1 +23.5 +25.6 dBm 824 to 849 350 0 1 +23.5 +25.6 dBm 830 to 862 200 1 1 +23.5 dBm 830 to 862 350 1 1 +23.5 dBm 880 to 915 200 0 1 +23.5 dBm 880 to 915 350 0 1 +23.5 dBm 698 to 716 200 1 1 +23.5 dBm 698 to 716 350 1 1 +23.5 dBm 777 to 798 200 1 1 +23.5 dBm 777 to 798 350 1 1 +23.5 dBm G Noise Figure NF 3rd Order Input Intercept Point IIP3 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202967A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 19, 2013 5 PRELIMINARY DATA SHEET • SKY73420-11 DOWNCONVERSION MIXER Table 5. SKY73420-11 Electrical Specifications: General (2 of 5) (Note 1) (VCC = 4.75 to 5.25 V, TC = –40 to +100 C, PLO = –3 to +3 dBm, PWRDN = Logic “0,” Unless Otherwise Noted) Test Condition Parameter Symbol Operating current (on) Operating current (off) (Note 2) Input 1 dB compression point RF Freq Range (MHz) Min Typical Max BS1 BS0 824 to 849 200 0 1 317 mA 824 to 849 350 0 1 329 mA 830 to 862 200 1 1 mA 830 to 862 350 1 1 mA 880 to 915 200 0 1 mA 880 to 915 350 0 1 mA 698 to 716 200 1 1 mA 698 to 716 350 1 1 mA 777 to 798 200 1 1 mA 777 to 798 350 1 1 mA 824 to 849 200 0 1 34 mA 824 to 849 350 0 1 34 mA 830 to 862 200 1 1 mA 830 to 862 350 1 1 mA 880 to 915 200 0 1 mA 880 to 915 350 0 1 mA 698 to 716 200 1 1 mA 698 to 716 350 1 1 mA 777 to 798 200 1 1 mA 777 to 798 350 1 1 mA 824 to 849 200 0 1 +10.0 +12.9 dBm 824 to 849 350 0 1 +10.0 +13.7 dBm 830 to 862 200 1 1 +10.0 dBm 830 to 862 350 1 1 +10.0 dBm 880 to 915 200 0 1 +10.0 dBm 880 to 915 350 0 1 +10.0 dBm 698 to 716 200 1 1 +10.0 dBm 698 to 716 350 1 1 +10.0 dBm 777 to 798 200 1 1 +10.0 dBm 777 to 798 350 1 1 +10.0 dBm ICC_ON ICC_OFF IP1dB Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 Units IF Freq (MHz) August 19, 2013 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 202967A PRELIMINARY DATA SHEET • SKY73420-11 DOWNCONVERSION MIXER Table 5. SKY73420-11 Electrical Specifications: General (3 of 5) (Note 1) (VCC = 4.75 to 5.25 V, TC = –40 to +100 C, PLO = –3 to +3 dBm, PWRDN = Logic “0,” Unless Otherwise Noted) Test Condition Parameter Symbol RF Freq Range (MHz) 824 to 849 1xLO to RF leakage (measured @ LO) 2xLO to RF leakage (measured @ 2xLO) 3xLO to RF leakage (measured @ 3xLO) 1xLORF 2xLORF 3xLORF Min Typical Max Units 1 –48 –25 dBm –48 IF Freq (MHz) BS1 BS0 200 0 824 to 849 350 0 1 –25 dBm 830 to 862 200 1 1 –25 dBm 830 to 862 350 1 1 –25 dBm 880 to 915 200 0 1 –25 dBm 880 to 915 350 0 1 –25 dBm 698 to 716 200 1 1 –25 dBm 698 to 716 350 1 1 –25 dBm 777 to 798 200 1 1 –25 dBm 777 to 798 350 1 1 –25 dBm 824 to 849 200 0 1 –48 –25 dBm 824 to 849 350 0 1 –41 –25 dBm 830 to 862 200 1 1 –25 dBm 830 to 862 350 1 1 –25 dBm 880 to 915 200 0 1 –25 dBm 880 to 915 350 0 1 –25 dBm 698 to 716 200 1 1 –25 dBm 698 to 716 350 1 1 –25 dBm 777 to 798 200 1 1 –25 dBm 777 to 798 350 1 1 –25 dBm 824 to 849 200 0 1 –65 –28 dBm –65 824 to 849 350 0 1 –28 dBm 830 to 862 200 1 1 –28 dBm 830 to 862 350 1 1 –28 dBm 880 to 915 200 0 1 –28 dBm 880 to 915 350 0 1 –28 dBm 698 to 716 200 1 1 –28 dBm 698 to 716 350 1 1 –28 dBm 777 to 798 200 1 1 –28 dBm 777 to 798 350 1 1 –28 dBm Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202967A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 19, 2013 7 PRELIMINARY DATA SHEET • SKY73420-11 DOWNCONVERSION MIXER Table 5. SKY73420-11 Electrical Specifications: General (4 of 5) (Note 1) (VCC = 4.75 to 5.25 V, TC = –40 to +100 C, PLO = –3 to +3 dBm, PWRDN = Logic “0,” Unless Otherwise Noted) Test Condition Parameter 4xLO to RF leakage (measured @ 4xLO) 2RF – 2LO (Note 3) 3RF – 3LO (Note 3) Symbol 4xLORF RF Freq Range (MHz) Min Typical Max BS1 BS0 824 to 849 200 0 1 –21 dBm 824 to 849 350 0 1 –21 dBm 830 to 862 200 1 1 dBm 830 to 862 350 1 1 dBm 880 to 915 200 0 1 dBm 880 to 915 350 0 1 dBm 698 to 716 200 1 1 dBm 698 to 716 350 1 1 dBm 777 to 798 200 1 1 dBm 777 to 798 350 1 1 dBm 824 to 849 200 0 1 –82 –63 dBc 824 to 849 350 0 1 –78 –63 dBc 830 to 862 200 1 1 dBc 830 to 862 350 1 1 dBc 880 to 915 200 0 1 dBc 880 to 915 350 0 1 dBc 698 to 716 200 1 1 dBc 698 to 716 350 1 1 dBc 777 to 798 200 1 1 dBc 777 to 798 350 1 1 dBc 824 to 849 200 0 1 –86 –70 dBc 824 to 849 350 0 1 –85 –70 dBc 830 to 862 200 1 1 dBc 830 to 862 350 1 1 dBc 880 to 915 200 0 1 dBc 880 to 915 350 0 1 dBc 698 to 716 200 1 1 dBc 698 to 716 350 1 1 dBc 777 to 798 200 1 1 dBc 777 to 798 350 1 1 dBc 2x2 3x3 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 8 Units IF Freq (MHz) August 19, 2013 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 202967A PRELIMINARY DATA SHEET • SKY73420-11 DOWNCONVERSION MIXER Table 5. SKY73420-11 Electrical Specifications: General (5 of 5) (Note 1) (VCC = 4.75 to 5.25 V, TC = –40 to +100 C, PLO = –3 to +3 dBm, PWRDN = Logic “0,” Unless Otherwise Noted) Test Condition Parameter Symbol RF Freq Range (MHz) 824 to 849 LO to IF (leakage measured @ LO) RF to IF (isolation measured @ RF) Channel to channel (isolation measured @ IF) Min Typical Max Units 1 –58 –23 dBm –53 IF Freq (MHz) BS1 BS0 200 0 824 to 849 350 0 1 –23 dBm 830 to 862 200 1 1 –23 dBm 830 to 862 350 1 1 –23 dBm 880 to 915 200 0 1 –23 dBm 880 to 915 350 0 1 –23 dBm 698 to 716 200 1 1 –23 dBm 698 to 716 350 1 1 –23 dBm 777 to 798 200 1 1 –23 dBm 777 to 798 350 1 1 –23 dBm 824 to 849 200 0 1 44 30 dB 824 to 849 350 0 1 45 30 dB 830 to 862 200 1 1 30 dB 830 to 862 350 1 1 30 dB 880 to 915 200 0 1 30 dB 880 to 915 350 0 1 30 dB 698 to 716 200 1 1 30 dB 698 to 716 350 1 1 30 dB 777 to 798 200 1 1 30 777 to 798 350 1 1 30 824 to 849 200 0 1 70 72 LO-IF RF-IF 40 dB 824 to 849 350 0 1 40 dB 830 to 862 200 1 1 40 dB 830 to 862 350 1 1 40 dB 880 to 915 200 0 1 40 dB 880 to 915 350 0 1 40 dB 698 to 716 200 1 1 40 dB 698 to 716 350 1 1 40 dB 777 to 798 200 1 1 40 777 to 798 350 1 1 40 Ch-Ch Note 1: Performance is guaranteed only under the conditions listed in this Table. Production tested: RF frequency = *** TBD *** MHz, LO frequency= *** TBD *** MHz. All others guaranteed by design and characterization. Testing conducted with balun on IF output (see Figure 5). Table 1 performance is of the DUT, with balun loss de-embedded. Input matching can be unique for each bandselect setting. Conditions for typical values: VCC = 5 V, TC = +35 C, PLO = 0 dBm, middle of RF range. See Table 7 for external biasing and matching components. Note 2: PWRDN pin = logic “1.” Note 3: Interferer tone is –10 dBm. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202967A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 19, 2013 9 PRELIMINARY DATA SHEET • SKY73420-11 DOWNCONVERSION MIXER Table 6. SKY73420-11 Electrical Specifications (Note 1) (VCC = 4.75 to 5.25 V, TC = –40 to +100 C, PLO = –3 to +3 dBm, PWRDN = Logic “0,” BS0/BS1 = Logic “1,” PRF = –10 dBm, fIF = 200 MHz, Unless Otherwise Noted) Parameter Symbol Noise Figure with a blocker signal (Note 2) NFBLK Power-up time (Note 2) (Note 3) tON Test Condition Min Typical Max *** TBD *** Blocking signal input power = +8 dBm, 2.5 MHz offset Units dB *** TBD *** 1 μs *** TBD *** 1 μs Power-down time (Note 2) (Note 4) tOFF RF port input return loss (Note 2) ZIN_RF With external matching components 14 dB LO port input return loss (Note 2) ZIN_LO With external matching components 14 dB IF port input return loss (Note 2) ZOUT_IF With external matching components 14 dB Note 1: Performance is guaranteed only under the conditions listed in this Table. Production tested: RF frequency = *** TBD *** MHz, LO frequency= *** TBD *** MHz. All others guaranteed by design and characterization. Testing conducted with balun on IF output (see Figure 5). Table 1 performance is of the DUT, with balun loss de-embedded. Input matching can be unique for each bandselect setting. Conditions for typical values: VCC = 5 V, TC = +35 C, PLO = 0 dBm, middle of RF range. See Table 7 for external biasing and matching components. Note 2: Not production tested. Guaranteed by design and characterization. Note 3: Time required for IF envelope to reach 97.5% of final value following a PWRDN transition to logic “0” with tFALL < 1 ns. Note 4: Time required for total supply current to be less than 53 mA following a PWRDN transition to logic “1” with tRISE < 1 ns. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 10 August 19, 2013 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 202967A PRELIMINARY DATA SHEET • SKY73420-11 DOWNCONVERSION MIXER Evaluation Board Description RF and IF matching components are listed in Table 7. 6. Components R29, R33, R34, and R37 (see Figure 5) allow for external adjustment of the LO driver bias currents. Skyworks recommends that these resistors have a tolerance of ±1 percent to optimize performance consistency of the SKY73420-11. These resistors are optional for device operation, but the performance in Tables 5 and 6 specified for the values of the RLO resistors (R29 and R37) as indicated in the Tables. Circuit Design Considerations 7. It is recommended to apply solder paste with stencil, as noted in Figure 6. The SKY73420-11 Evaluation Board is used to test the performance of the SKY73420-11 downconversion mixer. An assembly drawing for the Evaluation Board is shown in Figure 3 and the layer detail is provided in Figure 4. A schematic diagram of the SKY73420-11 Evaluation Board is shown in Figure 5. The following design considerations are general in nature and must be followed regardless of final use or configuration: 1. Paths to ground should be made as short as possible. 2. The ground pad of the SKY73420-11 has special electrical and thermal grounding requirements. This pad is the main thermal conduit for heat dissipation. Since the circuit board acts as the heat sink, it must shunt as much heat as possible from the device. Therefore, design the connection to the ground pad to dissipate the maximum wattage produced by the circuit board. 3. Skyworks recommends including external bypass capacitors on the VCC voltage inputs of the device. 4. Components L12, L13, L14, and L15 (see Figure 5) are high-Q low loss inductors. These inductors must be able to pass currents in excess of 200 mA DC. 5. Components R8, R9, R31, and R35 (see Figure 5) allow for external adjustment of the IF amplifier bias currents. Skyworks recommends that these resistors have a tolerance of 1% to optimize performance consistency of the SKY73420-11. These resistors are optional for device operation, but the performance in Tables 5 and 6 is specified for the values of the RIF resistors (R31 and R35) as indicated in the Tables. Package Dimensions The PCB layout footprint for the SKY73420-11 is provided in Figure 6. Figure 7 shows the package dimensions for the 36-pin QFN and Figure 8 provides the tape and reel dimensions. Package and Handling Information Since the device package is sensitive to moisture absorption, it is baked and vacuum packed before shipping. Instructions on the shipping container label regarding exposure to moisture after the container seal is broken must be followed. Otherwise, problems related to moisture absorption may occur when the part is subjected to high temperature during solder assembly. The SKY73420-11 is rated to Moisture Sensitivity Level 3 (MSL3) at 260 C. It can be used for lead or lead-free soldering. For additional information, refer to the Skyworks Application Note, PCB Design & SMT Assembly/Rework Guidelines for MCM-L Packages, document number 101752. Care must be taken when attaching this product, whether it is done manually or in a production solder reflow environment. Production quantities of this product are shipped in a standard tape and reel format. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202967A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 19, 2013 11 PRELIMINARY DATA SHEET • SKY73420-11 DOWNCONVERSION MIXER J6 J7 J4 J1 J3 S2988 Figure 3. SKY73420-11 Evaluation Board Assembly Diagram Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 12 August 19, 2013 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 202967A PRELIMINARY DATA SHEET • SKY73420-11 DOWNCONVERSION MIXER Top Layer Ground Plane Power Plane Bottom Layer S2989 Figure 4. SKY73420-11 Evaluation Board Layer Detail Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202967A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 19, 2013 13 PRELIMINARY DATA SHEET • SKY73420-11 DOWNCONVERSION MIXER 1 R24 0Ω L2 39 nH 6 3 4 2 3 C1 2.2 μF Chan. A IF Output C24 7.5 pF 1 +5 V Supply J6 2 +5 V Supply J2 T1 C37 DNI L14 390 nH +5 V Supply L15 390 nH +5 V Supply +5 V Supply Channel A IF Bias R9 DNI C23 15 pF R31 2 kΩ C11 2.2 nF C53 470 nF C47 2.2 μF R33 DNI +5 V Supply 36 Chan. A Input L9 1.5 pF L8 DNI 1 2 3 4 +5 V Supply C5 2.2 nF × C19 15 pF 5 6 7 8 +5 V Supply C2 2.2 nF 9 C18 15 pF 10 R29 8.2 kΩ R1 100 kΩ +5 V Supply × R21 DNI 35 34 33 32 31 30 29 28 N/C N/C BS1 BS0 N/C PWRDN VCC_LOIN GND LO 27 26 25 +5 V Supply R12 100 kΩ × J5 24 23 22 × R2 DNI × 1 × 2 +5 V Supply R13 100 kΩ 21 +5 V Supply 20 C14 33 pF 19 C16 1 μF J4 LO Input 11 12 13 14 15 16 17 18 × Chan. B Input L3 1.5 pF × RFA GND GND VCC_LO N/C VCC_LO GND GND RFB C30 22 pF C27 2.7 nH J1 × Bottom Ground Pad VCC_RFA RIFA N/C IFA– IFA+ N/C VCC_IFA RLOA N/C C33 22 pF VCC_RFB RIFB N/C IFB+ IFB– N/C VCC_IFB RLOB N/C C39 2.7 nH J7 +5 V Supply Channel A LO Bias C25 15 pF C13 22 pF × Channel B LO Bias L4 DNI +5 V Supply R37 8.2 kΩ R34 DNI +5 V Supply +5 V Supply C20 15 pF C22 15 pF C10 2.2 nF C54 470 nF C48 2.2 μF Channel B IF Bias +5 V Supply R8 DNI R35 2 kΩ L12 390 nH +5 V Supply +5 V Supply L13 390 nH 1 T1 6 L1 39 nH R19 0Ω J3 Chan. B IF Output 2 3 4 C21 7.5 pF C36 DNI Notes: Some component labels may be different than the corresponding component symbol shown here. Component values, however, are accurate as of the date of this Data Sheet. Figure 5. SKY73420-11 Evaluation Board Schematic Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 14 August 19, 2013 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 202967A Y0067 PRELIMINARY DATA SHEET • SKY73420-11 DOWNCONVERSION MIXER Table 7. Evaluation Board Schematic Band-Dependent Components RF Frequency Range (MHz) RF Matching Comp’s Bandselects 3GPP Band fIF (MHz) BS1 BS0 824 to 849 5 200 1 1 824 to 849 5 350 1 1 830 to 862 6, 19, 20 200 1 1 830 to 862 6, 19, 20 350 1 1 880 to 915 8 200 0 1 880 to 915 8 350 0 1 698 to 716 12, 17 200 1 1 698 to 716 12, 17 350 1 1 777 to 798 13, 14 200 1 1 777 to 798 13,14 350 1 1 R1 (Ω) R21 (kΩ) C33, C30 (pF) IF Matching Comp’s L2, L1 (nH) C24, C21 (pF) IF Bias LO Bias R31, R35 (kΩ) R29, R37 (kΩ) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202967A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 19, 2013 15 9X 2.03 9X 1.52 9X 1.02 Pin 36 6.40 4.60 9X 2.03 9X 1.52 9X 1.02 9X 0.51 0 9X 0.51 9X 1.02 9X 1.52 9X 2.03 6.40 4.60 0.650 Typ. 0.250 Typ. 0.500 Typ. 2 3 0 7 20 81X ∅0.25 0 Pin 1 Board Metal Pin 36 6.50 4.40 Pin 1 9X 0.51 0 9X 0.51 9X 1.02 9X 1.52 9X 2.03 PRELIMINARY DATA SHEET • SKY73420-11 DOWNCONVERSION MIXER Via Pattern (Note 1) 6.40 Pin 36 0.20 Typ. Pin 1 3X 1.20 0.20 Typ. 0.20 Typ. 6.50 4.40 6.40 3X 1.20 0.20 Typ. 0.750 Typ. 0.350 Typ. 0.500 Typ. Solder Mask Pattern (Note 2) Component Outline 0.650 Typ. 0.250 Typ. 0.500 Typ. 67% solder coverage on center pad Stencil Pattern (Note 3) NOTES: 1. Via hole recommendations: 0.025 mm Cu via wall plating (minimum), soldermask on the far side should tent or plug via holes. 2. Soldermask recommendations: Contact board fabricator for recommended soldermask offset and tolerance. 3. Stencil recommendations: 0.125 mm stencil thickness, laser cut apertures, trapezoidal walls and rounded corners offer better paste release. Dimension and tolerancing according to ASME Y14.5M-1994. Unless specified, dimensions are symmetrical about center lines. All dimensions are in millimeters. Figure 6. PCB Layout Footprint for the SKY73420-11 6 x 6 mm QFN Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 16 August 19, 2013 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 202967A S3158 PRELIMINARY DATA SHEET • SKY73420-11 DOWNCONVERSION MIXER 0.850 ± 0.050 2X A 6.000 ± 0.050 0.15 C 36 35 34 33 32 4.600 ± 0.050 0.10 M C A B See Note 3 B 0.40 x 45° 0.203 Ref. 31 30 29 28 28 29 30 31 32 33 34 35 36 27 27 1 2 26 26 2 3 25 25 3 4 24 24 4 5 23 23 5 6 22 22 6 7 21 21 7 8 20 20 9 19 19 10 0.15 C 11 12 13 14 15 16 17 4.600 ± 0.050 6.000 ± 0.050 0.10 M C A B 1 8 R0.075 Typ. Seating Plane 18 0 to 0.05 2X 18 17 16 15 14 13 9 12 11 10 36 X 0.250 ± 0.050 36X 0.400 ± 0.050 0.10 M C A B 0.05 M C c Top View 0.500 Side View Bottom View NOTES: 1. All measurements are in millimeters. 2. Dimensioning and tolerancing according to ASME Y14.5M-1994. Unless otherwise specified the following values apply: Decimal Tolerance: Angular Tolerance: X.X (1 place) ± 0.1 mm ±1° X.XX (2 places) ± 0.05 mm X.XXX (3 places) ± 0.025 mm 3. Terminal #1 identification mark located within marked area. 4. Unless specified, dimensions are symmetrical about center lines. S2944 Figure 7. SKY73420-11 36-Pin QFN Package Dimensions P2 2.00 ± 0.1 (Note 1) ∅1.55 ± 0.05 (Do) 0.30 ± 0.05 Po 4.00 ± 0.1 (Note 2) E1 1.75 ± 0.1 Y 6.30 ± 0.1 (Bo) A Ref 3° . CL 16.00 ± 0.3 ∅1.5 Min. (D1) 7.50 ± 0.1 (Note 1) Pin 1 Location 1.10 ± 0.1 (Ko) Y 12.00 ± 0.1 (P1) Section Y-Y 6.30 ± 0.1 (Ao) Ref. R0.5 Notes: 1. Measured from center line of sprocket hole to center line of pocket. 2. Cumulative tolerance of 10 sprocket holes is ± 0.20 mm. 3. Other material available. Detail A S2943 All measurements are in millimeters. Figure 8. SKY73420-11 Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202967A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 19, 2013 17 PRELIMINARY DATA SHEET • SKY73420-11 DOWNCONVERSION MIXER Ordering Information Model Name SKY73420-11 650-950 MHz Downconversion Mixer Manufacturing Part Number SKY73420-11 Evaluation Board Part Number *** TBD *** Copyright © 2013 Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. These materials, including the information contained herein, are provided by Skyworks as a service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility for errors or omissions in these materials or the information contained herein. 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