DATA SHEET SKY73126-31: 161.92 MHz High Performance VCO/Synthesizer Applications Description 3GPP Long-Term Evolution systems Skyworks SKY73126-31 Voltage-Controlled Oscillator (VCO)/Synthesizer is a fully integrated, high performance signal source for base station transceivers. The device provides low phase-noise performance for 3G base station transceivers and general RF system applications. General purpose RF systems Features The SKY73126-31 VCO/Synthesizer is a key building block for high performance radio system designs that require low power and low phase noise. The device provides a fixed 161.92 MHz frequency source output. A 10 MHz or 32 MHz reference clock frequency could be used for this device. Fixed 161.92 MHz operation frequency Integer N synthesizer Reference frequency selection: 10 MHz or 32 MHz Integrated voltage regulator, 3.3 V The integer-N Phase Locked Loop (PLL), loop filter, VCO, varactor, frequency divider and output buffer are integrated inside the device. An integrated 3.3 V voltage regulator provides superior phase-noise performance. The SKY73126-31 is programmed through a three-wire Serial Peripheral Interface (SPI). Typical +10 dBm output power Three-wire serial interface Integrated harmonic filter Integrated metal shield provides high EMI protection The SKY73126-31 VCO/Synthesizer is provided in a compact, 16-pin Multi-Chip Module (MCM). The device package and pinout are shown in Figure 1. A functional block diagram is shown in Figure 2. Signal pin assignments and functional pin descriptions are provided in Table 1. GND MCM (16-pin, 11.4 x 15 mm) package (MSL3, 260 C per JEDEC J-STD-020) 15 VCC 1 14 TCXO_IN GND 2 13 GND RF_OUT 3 12 LD GND 4 11 LE N/C 5 10 DATA GND 6 9 GND N/C 7 8 CLK GND 16 S1314 Figure 1. SKY73126-31 Pinout- 17-Pin MCM Package (Top View) Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 201112C * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * February 24, 2010 1 DATA SHEET * SKY73126-31 VCO/SYNTHESIZER /4 Divider Varactor RF_OUT VCO Vtune PLL Loop Filter TCXO_IN (10 or 32 MHz) CLK LE DATA 3-Wire Serial Interface CPO RF R1 SP1 SC1 R1 Divider RF PFD RF Charge Pump N PS RFIN N Divider P/P+1 Prescaler RFINB Mux (LD/Test) LD 3.3 V Voltage Regulator VCC (5 V) S1315 Figure 2. SKY73126-31 Functional Block Diagram Table 1. SKY73126-31 Signal Descriptions Pin # 1 Name Description Pin # Name Description VCC +5 V DC power supply 9 GND Ground 2 GND Ground 10 DATA Serial port SPI data input (master out slave in) 3 RF_OUT RF output 11 LE Serial port latch enable 4 GND Ground 12 LD Lock detect output 5 N/C No connection 13 GND Ground 6 GND Ground 14 TCXO_IN Frequency reference input 7 N/C No connection 15 GND Ground 8 CLK Serial port clock 16 GND Ground Technical Description The SKY73126-31 is a BiCMOS integer-N synthesizer that offers high performance, low cost, and low power consumption. The device also provides programmable charge pump gain. Serial I/O Control Interface The SKY73126-31 is programmed through a three-wire serial bus control interface. The three-wire interface consists of three signals: CLK (pin 8), LE (pin 11), and the bit serial data line DATA (pin 10). A serial data input timing diagram is shown in Figure 3. Timing parameter values are provided in Table 2. Figure 4 depicts the serial bus, which consists of one 32-bit load register and four separate 28-bit hold registers. Data is initially clocked into the load register starting with the Most Significant Bit (MSB) and ending with the Least Significant Bit (LSB). The LE signal is used to gate the clock to the load register, requiring the LE signal to be brought low before the data load. Data is shifted on the rising edge of CLK. The falling edge of LE latches the data into the appropriate hold register from the load register. This programming sequence must be repeated to fill all four hold registers. The specific hold register addresses are determined by the wd_0, wd_1, wd_2, and wd_3 parameters in the load register. These are the four LSBs (bits [3:0]) as shown in Figure 4. Table 3 lists the four hold registers and their respective addresses as determined in the load register. Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 2 February 24, 2010 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * 201112C DATA SHEET * SKY73126-31 VCO/SYNTHESIZER Vendor ID read-back is initiated by setting the MSB of a 32-bit data word and writing the word to device word address 0 (all other bits of the data word are "don't care"). After the LE signal transitions from low to high, the rising edge of CLK gates the Word 0 register data (vendor ID) to the lock detect pin, MSB first. The contents of each word in the load register are used to program the four hold registers described in Tables 4 through 7. Loading new data into a hold register not associated with the synthesizer frequency programming does not reset or change the synthesizer. The synthesizer should not lose lock before, during, or after a new serial word load that does not change the programmed frequency. The vendor ID for the SKY73126-31 is 0x100 (equal to 100000000b or 256 decimal). Figure 5 shows the Serial Peripheral Interface (SPI) timing diagram for vendor ID read-back. Figure 6 defines the word used to initiate the vendor ID read-back function. Vendor ID Read-Back The SKY73126-31 includes a read-back function that provides the vendor ID. This information is stored in register word 0 and is provided by the lock detect output signal (LD, pin 12). t3 t4 CLK t1 t2 D31 DATA D30 D4 D3 D2 D1 D0 t6 t5 LE S1192 Figure 3. SKY73126-31 Serial Data Input Timing Diagram (MSB First) Table 2. CLK, DATA, LE Timing Parameters Parameter Value DATA to CLK setup time (t1) >10 ns DATA to CLK hold time (t2) >10 ns CLK high duration (t3) >25 ns CLK low duration (t4) >25 ns CLK to LE hold time (t5) >10 ns LE to CLK setup time (t6) >10 ns Read-back clock to output time (tdOUT) <25 ns Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 201112C * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * February 24, 2010 3 DATA SHEET * SKY73126-31 VCO/SYNTHESIZER Power-On Reset CLK Load Register DATA Bits [31:4] Word 0 Bits [31:4] Operation Vendor ID Register (Words 0-3, bits [31:0]) Latch Word 1 Bits [31:4] Mode Register DPLL Control Register Latch Latch Word 2 Bits [31:4] Word 3 Bits [31:4] Frequency Control Register Latch Words 0-3 Bits [3:0] 4 LSB Decode (Register Address, Bits [3:0]) LE S1191 Figure 4. Serial Bus Block Diagram Table 3. SKY73126-31 Hold Registers and Addresses Hold Register Address (Binary) in Load Register Words Hold Register Name Bit [3] Bit [2] Bit [1] Bit [0] Vendor ID 0 0 0 0 Operation Mode 0 0 0 1 DPLL Control 0 0 1 0 Frequency Control 0 0 1 1 Table 4. Word 0: Vendor ID Hold Register Parameter Function wd_3, wd_2, wd_1, wd_0 Address bits [3:0]. Must be set to 0000b (see Table 3). vendor id Vendor ID read-back [31:4] State Description Bits [31:4]: Bit [31] Bits [30:4] 0 1 x x Recommended Operational Value (Binary) Default Value (Binary) 0000 0000 Application dependent 10000 Recommended Operational Value (Binary) Default Value (Binary) 0001 0001 Application dependent 000 00 00 = vendor ID = vendor ID initial read-back Table 5. Word 1: Operation Mode Hold Register (1 of 2) Parameter Function wd_3, wd_2, wd_1, wd_0 Address bits [3:0]. Must be set to 0001b (see Table 3). cp_output Charge pump setting [6:4] State Description Bits [6:4]: 0 0 0 = 800 A 0 0 1 = 1600 A 0 1 0 = 2400 A 0 1 1 = 3200 A 1 0 0 = 4000 A 1 0 1 = 4800 A 1 1 0 = 5600 A 1 1 1 = 6400 A rsvd Reserved [8:7] Reserved Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 4 February 24, 2010 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * 201112C DATA SHEET * SKY73126-31 VCO/SYNTHESIZER Table 5. Word 1: Operation Mode Hold Register (2 of 2) Parameter pd_polar Function Polarity of the phase detector [9] State Description Bit [9]: Recommended Operational Value (Binary) Default Value (Binary) 0 0 0 0 0 0 1 0 Application dependent 00 00 00 Application dependent 0 Application dependent 0000000000 0000 0000 0 = negative 1 = positive cp_tristate nr_sel Tri-states the transmit PLL charge pump [10] Bit [10]: Internal operating voltage control bit for the N-counter and R-divider [11] Word 1 Word 1 Word 2 Bit [12] Bit [11] Bit [25]: N-Cntr/R-Divider Voltage Note: this bit needs to be programmed together with Word 1, bit [12], and Word 2, bit [25]. pll_en 0 = charge pump functional 1 = charge pump disabled/tri-stated 0 1 1 1 1 X 0 0 1 1 = = = = = 0V 1.8 V 1.8 V 2.4 V 2.4 V 0V 1.8 V 2.4 V 1.8 V 2.4 V Internal operating voltage control bit for the PLL [12] See nr_sel parameter (bit [11]) Note: this bit needs to be programmed together with Word 1, bit [11], and Word 2, bit [25]. ref_bw_sel X 0 1 0 1 Mod Dig Voltage Reference buffer bandwidth [14:13] Bits [14:13]: 0 0 = 20 MHz 0 1 = 30 MHz 1 0 = 40 MHz 1 1 = 50 MHz pre_curr_sel Prescaler current bias [16:15] Bits [16:15]: 0 0 = 20 A 0 1 = 22 A 1 0 = 24 A 1 1 = 26 A prescale_sel Prescaler mode select [17] Bit [17]: 0 = Prescaler in 8/9 divide mode 1 = Prescaler in 16/17 divide mode rdiv Reference divider ratio [27:18] Bits [27:18]: represents the 10-bit reference divider, R1 [9:0]. Refer to the Synthesizer Programming section of this Data Sheet for information. rsvd Reserved [31:28] Reserved Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 201112C * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * February 24, 2010 5 DATA SHEET * SKY73126-31 VCO/SYNTHESIZER Table 6. Word 2: DPLL Control Hold Register Parameter Function State Description wd_3, wd_2, wd_1, wd_0 Address bits [3:0]. Must be set to 0010b (see Table 3). dpll_ctrl DPLL control [21:4] Reserved test_mux Lock detect and diagnostic output select [24:22] Bits [24:22]: Note: Logic output is via LD signal (pin 12) Recommended Operational Value (Binary) Default Value (Binary) 0010 0010 - 00000000000 0000000 000 000 0 0 000000 000000 Recommended Operational Value (Binary) Default Value (Binary) 0011 0011 Refer to Figure 7 0 Application dependent 00000000000 00000 0 0 0 = lock detect output or vendor ID read-back 0 0 1 = R-divider output 0 1 0 = N-divider output 0 1 1 = capacitor overflow 1 0 0 = capacitor underflow 1 0 1 = VCO high comparator 1 1 0 = VCO low comparator 1 1 1 = DPLL test Note: When test_mux = 000, the vendor ID is output to pin 12 if vendor ID read-back has been initialized. Otherwise, when test_mux = 000, pin 12 outputs the lock detect signal. sd_sel Internal operating voltage control bit for the synthesizer [25] See nr_sel parameter (Word 1, bit [11]) Note: this bit needs to be programmed together with Word 1, bit [11], and Word 1, bit [12]. rsvd Reserved [31:26] Reserved Table 7. Word 3: Frequency Control Hold Register (1 of 2) Parameter Function wd_3, wd_2, wd_1, wd_0 Address bits [3:0]. Must be set to 0011b (see Table 3). dpll_en VCO auto tuning enable flag [4] State Description Bit [4]: 0 = disable VCO auto tuning 1 = enable VCO auto tuning ndiv N-divider/prescaler mode for control of M and A counters [20:5] Bits [20:5]: For 8/9 prescaler mode: bits [7:5] = A-counter bits [2:0] (bit [3] = 0) bits [19:8] = M-counter bits [11:0] bit [20] =0 For 16/17 prescaler mode: bits [8:5] = A-counter bits [3:0] bits [20:9] = M-counter bits [11:0] Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 6 February 24, 2010 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * 201112C DATA SHEET * SKY73126-31 VCO/SYNTHESIZER Table 7. Word 3: Frequency Control Hold Register (2 of 2) Parameter Function cp_delay State Description Charge pump delay [23:21] Recommended Operational Value (Binary) Default Value (Binary) 000 000 00000000 00000000 Bits [23:21]: 0 0 0 = 0.5 ns 0 0 1 = 0.7 ns 0 1 0 = 0.9 ns 0 1 1 = 1.2 ns 1 0 0 = 1.4 ns 1 0 1 = 1.7 ns 1 1 0 = 2.0 ns 1 1 1 = 3.0 ns rsvd Reserved [31:24] Reserved t3 t4 CLK t2 t1 DATA D31=1 D30=x D4=x D3=0 D2=0 D1=0 D0=0 t6 t6 t5 LE tdout LD Default ID31 ID30 ID1 ID0 Default S1193 Figure 5. Vendor ID Read-Back Timing Diagram D31 D30 D29 D28 D27 D26 D25 D24 D23 D22 D21 D20 D19 D18 D17 D16 D15 D14 D13 D12 D11 D10 D9 1 x x x x x x x x x x x x x x x x x x x x x x D8 D7 D6 x x x D5 D4 x x D3 D2 D1 D0 0 0 0 0 Figure 6. Vendor ID Read-Back Initialization Word VCO Prescalers The VCO prescalers divide the VCO output signal by either 16/17 or 8/9. The modulus control signal from the N-counter determines whether to divide by 16 or 17 in 16/17 mode, or whether to divide by 8 or 9 in 8/9 mode. The prescaler mode is determined by bit [17] of Word 1 (Operation Mode Register). The maximum prescaler input frequency is 2000 MHz for 8/9 mode, and 3100 MHz for 16/17 mode. N-Counter The N-counter consists of two asynchronous ripple counters, a 12-bit M-counter and a 4-bit A-counter. The M-counter determines the counts using the lower division ratio in the prescaler (8 or 16); the A-counter determines the counts using the upper division ratio (9 or 17). The value of the N-counter is determined by the equation: (M x P) + A where M and A are the values of the M-counter and A-counter, and P = 8 for 8/9 mode or 16 for 16/17 mode. In 16/17 mode, the M-counter (bits [11:0]) value is determined by the 12 highest order bits of the N-counter (bits [15:4]). The Acounter value (bits [3:0]) is determined by the 4 lowest order bits of the N-counter (bits [3:0]). In 8/9 mode, the M-counter value is determined by bits [14:3] of the N-counter and the A-counter value is determined by the three lowest order bits of the N-counter (bits [2:0]). In this case, bit [15] of the N-counter is always cleared. Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 201112C * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * February 24, 2010 7 DATA SHEET * SKY73126-31 VCO/SYNTHESIZER Phase Detector and Charge Pump The phase detector and charge pump detect and integrate the phase and frequency errors of the divided-down VCO output versus the reference clock. This results in a feedback adjustment of the control voltage for the VCO. Round the value of Ndiv to the nearest integer and then convert to binary: Ndiv[15:0] = 19384 = 0001111110100000b Since the VCO output frequency (fVCO) is lower than 2000 MHz and Ndiv is less than 215, the 8/9 prescaler mode could be used. Lock Detect Lock detection circuitry provides a CMOS logic level indication when the PLL is frequency locked (high when locked). Reference Input Divider The R-counter (reference input clock divider) consists of 10-bit dividers controlled by the rdiv parameter in Word 1 (Operation Mode Register, bits [27:18]). The R-counter divides the clock signal from the reference input buffer by 1, 2, 4, or 1023 (approx.) and sends the rdiv output to the Phase Frequency Detector (PFD). Synthesizer Programming The SKY73126-31 has selectable VCO prescalers to divide the VCO output signal by either 16/17 or 8/9. The prescaler mode is determined by the prescale_sel parameter (Word 1, bit [17], of the Operation Mode Register). To program the synthesizer to the correct frequency, the N-divider and R-divider ratios need to be determined. The N-divider ratio is the result of dividing the VCO output frequency by the phase comparison frequency: f Ndiv VCO f PFD The VCO output frequency is four times greater than the synthesizer RF output frequency. The value of Ndiv is rounded to the nearest integer and then converted into a binary number which is written to the serial bus. The maximum Ndiv for the 8/9 prescaler mode is 215 or 32768. For the 16/17 prescaler mode, the maximum Ndiv is 216 or 65536. The R-divider ratio is the result of dividing the reference input frequency by the phase comparison frequency: Rdiv f ref f PFD Example: A synthesizer frequency of 161.92 MHz is required using a crystal frequency of 10 MHz. The minimum frequency step is 80 kHz. Determine the R-divider ratio: 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 SKY73126-31 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 Skyworks Application Note, PCB Design and 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. For packaging details, refer to the Skyworks Application Note, Tape and Reel, document number 101568. Circuit Design Considerations 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 and as low impedance as possible. 2. The ground pad of the SKY73126-31 provides critical electrical grounding requirements. Design the connection to the ground pad to provide the best electrical connection to the circuit board. Multiple vias to the grounding layer are recommended to connect the top layer ground area to the main ground layer. 3. Skyworks recommends including external bypass capacitors on the VCC voltage input (pin 1) of the device. These capacitors should be placed as close as possible to the VCC input pin. 4. A 50 impedance trace is needed for the RF_OUT (pin 3) line. Rdiv[9:0] = 10 MHz/80 kHz = 125 = 1111101b Divide the VCO output frequency, which is four times the RF output frequency, by the phase comparison frequency (minimum frequency step in this example) to obtain the N-divider ratio: Ndiv[15:0] = (161.92 MHz x 4)/80 kHz = 8096 Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 8 February 24, 2010 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * 201112C DATA SHEET * SKY73126-31 VCO/SYNTHESIZER Electrical and Mechanical Specifications frequency settling time are shown in Figures 7 and 8, respectively. The absolute maximum ratings of the SKY73126-31 are provided in Table 8. The recommended operating conditions are specified in Table 9 and electrical specifications are provided in Table 10. Measurement plots for single sideband phase noise and A typical application schematic for the SKY73126-31 is provided in Figure 9. Figure 10 shows the package dimensions for the 16pin MCM and Figure 11 provides the tape and reel dimensions. Table 8. SKY73126-31 Absolute Maximum Ratings (Note 1) Parameter Symbol Min Typical 0 Max Units 5.5 V Supply voltage VCC Operating temperature, full performance TOP -40 +85 C Storage temperature TST -40 +150 C Note 1: 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 values. 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. The SKY73126-31 ESD threshold level is 2500 VDC using Human Body Model (HBM) testing. This level applies to RF signal lines >100 MHz, analog and RF lines <100 MHz, digital lines, power supply lines, and ground pins. Table 9. SKY73126-31 Recommended Operating Conditions Parameter Supply voltage Symbol VCC Min Typical Max Units 4.75 5.00 5.25 V 0.6 V V 0.4 V V Input voltage (CLK, DATA, LE): Low level High level 1.4 Output voltage (LD) with 18 k load from VCC PLL: Low level, unlocked High level, unlocked 2.4 Load connected to RF output 50 , maximum VSWR (load input) 2.0:1, all phases Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 201112C * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * February 24, 2010 9 DATA SHEET * SKY73126-31 VCO/SYNTHESIZER Table 10. SKY73126-31 Electrical Characteristics (Note 1) (Note 2) (VCC = 5 V, TC = 25 C, cp_output = 3200 A, TCXO_IN = 10 MHz, f = 161.92 MHz, fPFD = 80 kHz, Unless Otherwise Noted) Parameter Oscillation frequency Symbol Min PLL must be programmed for desired frequency (Note 3) 160 fOSC Oscillation frequency range Reference frequency Test Conditions Typical Max Units 165 MHz 161.92 fREF MHz 10 or 32 Reference input voltage (Note 4) 2.0 2.5 Output level 10 Output impedance 50 Output VSWR MHz 2.7 2.0:1 Reference frequency (fREF) input impedance (Note 4) Harmonic suppression 5 H2, H3 fREF = 10 MHz Reference spurious suppression around fOSC Other spurious suppression (not multiple of PLL reference) around fOSC: sum @ 0.5 kHz to 50 kHz sum @ 50 kHz to 100 kHz sum @ 100 kHz to 10 MHz dBc -97 -103 -96 -100 -100 -80 -85 -85 -85 -90 dBc dBc dBc dBc dBc fREF = 10 MHz -110 -85 dBc fREF = 32 MHz -98 -85 dBc -100.0 -100.0 -91.0 -50.0 -64.0 -90.0 dBc dBc dBc -87.7 -99.3 -109.2 -141.9 -151.6 -153.1 -153.8 -80.0 -90.0 -100.0 -120.0 -132.0 -151.0 -152.0 dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz 5 ms < 100 kHz -40 -90 dBc dBc 119 mA fREF = 10 MHz Single sideband phase noise offset: @ 1 kHz @ 5 kHz @ 10 kHz @ 100 kHz @ 500 kHz @ 1 MHz @>2.7 MHz Settling time (Note 4) Pulling (Note 4) 2.0:1 VSWR Pushing (Note 4): 200 Hz to 1 MHz 1 MHz to 460 MHz Current consumption 72 Note 1: Performance is guaranteed only under the conditions listed in this Table. Note 2: Characterized performance may change if the SKY73126-31 is configured differently than the test conditions specified here. Note 3: Frequency range not tested in production. Note 4: Guaranteed by design based on lab data. No production test. Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 10 - k -40.9 PLL reference spurious suppression around fOSC: @ 80 kHz @ 160 kHz sum @ 240 kHz to 1 MHz sum @ 1 MHz to 2.4 MHz sum >2.4 MHz Vpp dBm February 24, 2010 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * 201112C DATA SHEET * SKY73126-31 VCO/SYNTHESIZER -60 -70 -80 -90 Phase Noise (dBc/Hz) -100 -110 -120 -130 -140 -150 -160 -170 -180 0.1 1 10 100 1000 10000 Offset Frequency (kHz) S1316 Figure 7. SKY73126-31 Single Sideband Phase Noise Measurements @ 161.92 MHz 500 400 300 Frequency Offset (kHz) 200 100 0 -100 -200 -300 -400 -500 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Time (ms) 4.5 5.0 S1317 Figure 8. SKY73126-31 Frequency Settling Time @ 161.92 MHz Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 201112C * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * February 24, 2010 11 DATA SHEET * SKY73126-31 VCO/SYNTHESIZER 15 C2 10 F C1 10 pF 1 2 RF Output 3 (50 Controlled Impedance Line) GND +5 V VCC TCXO_IN GND GND RF_OUT LD GND 6 7 x 12 Lock Detect (Read Back) Latch Enable LE N/C DATA GND GND N/C CLK GND x Frequency Reference 13 11 4 5 14 10 Data 9 8 Clock 16 S1345 Figure 9. SKY73126-31 Typical Application Schematic B 11.4 See Detail B C Pin 1 Indicator (0.4) Soldermask Opening Pin 1 Indicator (5.2) Pin 15 Top (7) Pin 14 Pin 1 16X SMT Pad 0.1 M A B C A (10.3) 0 15 4X 1.8 4X 3.6 4X 5.4 (2.35) 2X 7.4 (2.35) 0.15 A B C Top View 15X 5.55 2 A B C (6.7) 1.9 0.1 2.7 0.2 Pin 16 0 A 0.1 Side View Bottom View 6.2 0.05 Metal Pad Edge 0.9 0.1 (0.05) 1.1 0.05 (0.05) (0.1) 0.6 0.1 (0.1) 1 0.1 1 0.05 Metal Pad Edge 1 0.05 1.15 0.05 6.3 0.05 Solder Mask Edges Solder Mask Edges Detail A Detail B Pad Scale: 2X Pad Scale: 2X 7X This rotation 7X Rotated 180o 1X This rotation 1X Rotated 180o All measurements are in millimeters Dimensioning and tolerancing according to ASME Y14.5M-1994 Figure 10. SKY73126-31 16-Pin MCM Package Dimensions Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 12 February 24, 2010 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * 201112C S1319 DATA SHEET * SKY73126-31 VCO/SYNTHESIZER 1.55 + 0.10/-0 Pin #1 indicator 0.30 0.05 16.00 4.00 2.00 0.05 1.75 0.10 A A 15.30 24.00 0.30 5o Max 11.50 0.05 B B 1.50 Min. 2.90 0.10 B 11.70 5o Max Notes: 1. Carrier tape material: black conductive polystyrene 2. Cover tape material: transparent conductive PSA 3. Cover tape size: 21.3 mm width 4. All measurements are in millimeters A S1318 Figure 11. SKY73126-31 Tape and Reel Dimensions Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 201112C * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * February 24, 2010 13 DATA SHEET * SKY73126-31 VCO/SYNTHESIZER Ordering Information Model Name SKY73126-31 161.92 MHz VCO/Synthesizer Manufacturing Part Number SKY73126-31 Evaluation Kit Part Number TW17-D730 Copyright (c) 2009, 2010 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. Skyworks may change its documentation, products, services, specifications or product descriptions at any time, without notice. Skyworks makes no commitment to update the materials or information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from any future changes. No license, whether express, implied, by estoppel or otherwise, is granted to any intellectual property rights by this document. Skyworks assumes no liability for any materials, products or information provided hereunder, including the sale, distribution, reproduction or use of Skyworks products, information or materials, except as may be provided in Skyworks Terms and Conditions of Sale. 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Skyworks products are not intended for use in medical, lifesaving or life-sustaining applications, or other equipment in which the failure of the Skyworks products could lead to personal injury, death, physical or environmental damage. Skyworks customers using or selling Skyworks products for use in such applications do so at their own risk and agree to fully indemnify Skyworks for any damages resulting from such improper use or sale. Customers are responsible for their products and applications using Skyworks products, which may deviate from published specifications as a result of design defects, errors, or operation of products outside of published parameters or design specifications. Customers should include design and operating safeguards to minimize these and other risks. Skyworks assumes no liability for applications assistance, customer product design, or damage to any equipment resulting from the use of Skyworks products outside of stated published specifications or parameters. Skyworks, the Skyworks symbol, and "Breakthrough Simplicity" are trademarks or registered trademarks of Skyworks Solutions, Inc., in the United States and other countries. Third-party brands and names are for identification purposes only, and are the property of their respective owners. Additional information, including relevant terms and conditions, posted at www.skyworksinc.com, are incorporated by reference. Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 14 February 24, 2010 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * 201112C