STW81200-EVB STSW-RFSOL002 Wideband RF synthesizer/VCO evaluation board and GUI Data brief Features Description • PCB-mounted STW81200 ultra low noise RF fractional/integer IC synthesizer with integrated VCOs and LDOs. The STW81200-EVB evaluation kit allows the user to program and operate the STW81200 RF fractional/integer synthesizer and its integrated VCOs and LDOs. • PC-compatible graphical user interface (GUI) giving: – Direct read/write access to device registers – Instant display of register field descriptions. The kit includes PC-compatible software with a Graphical User Interface (STSW-RFSOL002) allowing the user to write and read all device registers. This gives direct control of circuit functions such as: operating frequency, reference frequency, input mode, charge pump current and low-power modes. The user-oriented GUI aids understanding of the performance, features and characteristics of the STW81200 device under test in a laboratory environment. The GUI displays instant register descriptions when the user slides the mouse over the displayed areas, command buttons and fields. July 2015 DocID027934 Rev 2 For further information contact your local STMicroelectronics sales office. 1/30 www.st.com Contents STW81200-EVB STSW-RFSOL002 Contents 1 Quick hardware setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.1 RF outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.2 Vcc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.3 USB (port B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.4 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.5 EXT VCO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.6 REFinP/N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.7 Enables/power down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2 Loop filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3 STW81200-EVB GUI setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4 STW81200-EVB GUI overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 5 STW81200-EVB GUI programming tabs . . . . . . . . . . . . . . . . . . . . . . . . 14 5.1 Main tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 5.1.1 Frequency mode (fractional only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 5.1.2 Reference Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 5.1.3 Output frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 5.1.4 VCO settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 5.1.5 RF output section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 5.1.6 Charge pump current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 5.2 PLL programming tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 5.3 Regulator programming tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 5.4 VCO programming tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 5.5 Low-power programming tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 6 STW81200-EVB schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 7 STW81200-EVB BOM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 2/30 DocID027934 Rev 2 STW81200-EVB STSW-RFSOL002 Contents 8 Reference documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 DocID027934 Rev 2 3/30 3 List of tables STW81200-EVB STSW-RFSOL002 List of tables Table 1. Table 2. Table 3. Table 4. 4/30 Loop filter component choice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 STW81200-EVB BOM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Reference documents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 DocID027934 Rev 2 STW81200-EVB STSW-RFSOL002 List of figures List of figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. STW81200-EVB connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Loop filter schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Hardware control buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 STW81200-EVB GUI window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Message output example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 STW81200-EVB functional block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 STW81200 EVAL main tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 STW81200 EVAL PLL programming tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Linear power regulators settings tab. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 VCO settings tab. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Low-power programming tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 STW81200-EVB interfaces schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 STW81200-EVB power supply schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 STW81200-EVB Schematic – analog /RF signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 DocID027934 Rev 2 5/30 5 Quick hardware setup 1 STW81200-EVB STSW-RFSOL002 Quick hardware setup Figure 1. STW81200-EVB connections Phase noise meter (terminate with 50 ohms when unused) REFinN REFinP DO NOT Connect RFout1 (0.7 to 2.7 GHz) OR RFout2N (0.05 to 6 GHz) STW81200 OR RFout2P (0.05 to 6 GHz) Remove jumper to measure RFIC current JP1 Vcc (USB module + RFIC) USB port (to PC) Power supply LED Enable LED PLL lock LED 3.3 V to 5.4 V 1.1 RF outputs For phase-noise meter connection (such as an Agilent E5052A/B or a spectrum analyzer): • RFout1 is a differential output (limited by Balun bandwidth) • RFout2P/N are single-ended outputs with full bandwidth available (50 MHz to 6 GHz). It is recommended to terminate unused ports with 50-ohm coaxial terminations. 1.2 Vcc Power supply connection. USB power can be used instead of J1/J2 although this is not recommended. (Check the USB PC port current capability.) 1.3 USB (port B) Provision for a USB cable connection to the PC running the STW81200-EVB GUI. 6/30 DocID027934 Rev 2 STW81200-EVB STSW-RFSOL002 1.4 Quick hardware setup LEDs These are active only if the STW81200-EVB GUI is running. From left to right: • 1.5 STW81200 is in LOCK state (green). The same information is available in the STW81200 EVAL GUI. • STW81200 is ENABLED (green). • An unregulated 5 V supply is applied from the power connectors or USB port (red). EXT VCO This is not used in the default setup, however it is included to support the use of an external VCO (the STW81200 has on-chip VCOs). 1.6 REFinP/N This is not used in the default setup, however it is included to support the use of an external reference signal. The STW81200-EVB incorporates a low-noise CMOS 100 MHz reference crystal oscillator (not temperature compensated) and a 50 MHz crystal which is not connected to the STW81200 in the delivered board configuration, but which can be connected with some simple soldering operations. (Some component configurations are not connected to the STW81200 in the delivered configuration.) As the device supports different reference signal standards (CMOS, LVDS, LVECL) REFinP/N can be used to inject a reference signal from a low-noise synthesized signal generator. The REFin signal is critical for the phase noise and spur performance of the STW81200. 1.7 Enables/power down Once connected to a supply, the STW81200, crystal oscillator, RF1/2 power-down control and status are available only through the STW81200 EVAL GUI. No hardware switch needs to be set on the PCB (except for the optional on-board VCO selector). DocID027934 Rev 2 7/30 30 Loop filter 2 STW81200-EVB STSW-RFSOL002 Loop filter Figure 2. Loop filter schematics Table 1. Loop filter component choice VCO freq VCO gain Charge pump PFD freq Loop BW Phase margin 3000-4000MHz C2 = 4.7 nF 23-58MHz/V C1 = 47 nF 4.9mA R1 = 150 ohm 50 MHz R3 = 120 ohm TBD C3/C4 = 680 pF TBD R4 = 220 ohm 4000-5000MHz C2 = 4.7 nF 32-66MHz/V C1 = 47 nF 4.9mA R1 = 150 ohm 50 MHz R3 = 120 ohm TBD C3/C4 = 680 pF TBD R4 = 220 ohm 5000-6000MHz 43-78MHz/V 4.9mA 50 MHz TBD TBD C2 = 4.7 nF C1 = 47 nF R1 = 150 ohm R3 = 120 ohm C3/C4 = 680 pF R4 = 220 ohm Note: The VCO gain varies appreciably. Although not demonstrated in these instructions, the charge-pump current is automatically adjusted to partially account for variation due to VCO gain with loop control voltage. It can also be manually tuned versus VCO frequency. Typically the loop filter/charge pump gain used is a good compromise between spur rejection and integrated phase noise. Loop bandwidth is set to approximately to 50 kHz and loop phase margin is set to approximately 55°. 8/30 DocID027934 Rev 2 STW81200-EVB STSW-RFSOL002 3 STW81200-EVB GUI setup STW81200-EVB GUI setup Before using the STW81200-EVB the FTDI drivers must be installed. The following quick setup and power-on sequence can then be performed: 1. Supply the STW81200-EVB through J1/2. 2. Connect a USB cable from the PC to the STW81200-EVB board. 3. Check that the USB device is properly recognized by the PC and that drivers are installed (CDM20814_Setup). 4. Start the GUI (STW81200GUI.exe). The window shown in Figure 4: STW81200-EVB GUI window should be displayed. 5. Check the GUI message list (USB Port is open, communication OK). 6. Configure all user settings (default or load previously defined configuration). 7. Click the WRITE button of the GUI to upload settings to the STW81200 registers. The USB communication is automatically established between the GUI and the STW81200 when the GUI is started (see point 4 of GUI setup above). This ensures that if the STW81200 is disconnected or its power supply is removed, the GUI detects this and gives a warning. The user must close the GUI, restore hardware connections and re-open the GUI to re-establish the communication before being able to WRITE to the registers again. The GUI frequently uses the message list window to inform the user of any action being performed on the device, and to give a real-time aid-to-understanding of what is happening inside the STW81200. We strongly suggest reading these messages. For each of the objects present inside the GUI a brief description is available for a few seconds when the user passes the mouse cursor over the object. In this way the GUI passes detailed information to the user, minimizing the need for separate documentation. Notes about RFIC current consumption measurement in the STW81200-EVB The STW81200-EVB has 3 on-board active parts: • USB module • crystal oscillator • STW81200 All the electronics is supplied through J1/J2 banana connectors (3.6 V/5.4 V) or through a USB cable (see schematic, s1). Using a USB cable is not recommended for laboratory measurements, but it can be useful if the user wants to exploit different configurations in an office environment. The following should be noted: • The USB module and STW81200 are supplied directly from J1/J2 • The crystal oscillator is supplied through internal low voltage regulator of STW81200. Typical currents measured through J1/J2 are the sum of the USB module (~80 mA), STW81200 and crystal oscillator (~10 mA). To do accurate measurements of STW81200 and crystal oscillator, current jumper JP1 can be used. The correct procedure for accurate measurements of the RFIC current is as follows: DocID027934 Rev 2 9/30 30 STW81200-EVB GUI setup STW81200-EVB STSW-RFSOL002 1. Insert an ammeter in the JP1 power line. Check that the voltage drop through JP1 is negligible. 2. Select STW81200 HW_PD and OSC_EN (Figure 3). Current consumption is approximately 15 mA (5 mA STW81200 + 10 mA crystal oscillator). 3. Disable OSC_EN and calculate the consumption of the crystal oscillator (IccOSC) 4. Program the STW81200 in the required configuration and/or operating mode. 5. Measure current through JP1 (IccOperating). 6. Calculate IccSTW = IccOperating - IccOSC. Figure 3. Hardware control buttons 10/30 DocID027934 Rev 2 STW81200-EVB STSW-RFSOL002 4 STW81200-EVB GUI overview STW81200-EVB GUI overview The STW81200-EVB GUI provides different tabs to set all available STW81200 features as detailed in this section. The device status control can be used as an alternative to HW_PD to set the STW81200 to ON or power down mode. If ON, a green/red LED indicates if it is in locked/ unlocked state. Figure 4. STW81200-EVB GUI window DocID027934 Rev 2 11/30 30 STW81200-EVB GUI overview STW81200-EVB STSW-RFSOL002 Four hardware controls are available: • HW_PD sets the STW81200 to power-down or active mode • PD_RF1/2 enables the RF outputs • OSC_EN acts on the on-board oscillator standby pin. These controls are effective immediately (there is no need to perform a WRITE command). Two buttons are available to WRITE or READ all STW81200 registers. GUI configurations can be saved or loaded through the following buttons: • Load: loads previously saved configuration from file • Save: saves current configuration to a file • Load Default: restores the default configuration. The user can show/hide register content (after a WRITE/READ command) in the Message List window using the Show Data check button. The message list is a powerful instrument that supports the user during normal operation of the GUI. It gives useful information about: • FTDI communication information • STW81200 ID • Registers R/W • Lock detection • VCO/Word selected by calibrator or user • Regulators ready/over current detection. The GUI always checks (poll time = 1s) the SWT81200 lock and ID. This feature is provided so that any unintentional USB cable disconnect or other incorrect user intervention is reported so that the user can correct the issue. Figure 5. Message output example For quick reference the circuit block diagram is given in Figure 6. Reading the data sheet is recommended for a detailed understanding of all circuit features, blocks and registers. 12/30 DocID027934 Rev 2 STW81200-EVB STSW-RFSOL002 STW81200-EVB GUI overview Figure 6. STW81200-EVB functional block diagram DocID027934 Rev 2 13/30 30 STW81200-EVB GUI programming tabs 5 STW81200-EVB STSW-RFSOL002 STW81200-EVB GUI programming tabs Five tabs are available to control the different parts and user modes of the STW81200. 5.1 • Section 5.1: Main tab • Section 5.2: PLL programming tab • Section 5.3: Regulator programming tab • Section 5.4: VCO programming tab • Section 5.5: Low-power programming tab. Main tab The Main tab (Figure 7) groups all the commonly used controls and resulting information required for basic use of the STW81200. Figure 7. STW81200 EVAL main tab 14/30 DocID027934 Rev 2 STW81200-EVB STSW-RFSOL002 STW81200-EVB GUI programming tabs The Main tab is divided in six main sections detailed below. 5.1.1 Frequency mode (fractional only) The user can select between two synthesizer operating modes. Although in most of the configurations the differences are negligible, in some cases mode selection can be useful: Frequency modes (exact or low spur) are enabled only if the fractional divider is used (NINT < 508). 5.1.2 • Exact mode: due to the flexible architecture of the delta sigma modulator embedded in STW81200, the synthesized frequency is exactly the frequency requested by user. • Low Spur mode: in this mode there is an improvement on spur signals at the expense of a slight frequency error. The error is less than half resolution and it is indicated in the Freq Err value. Under typical operating conditions the error is < 0.01 ppm. Reference Clock The user must enter the reference frequency (both from an external source or crystal oscillator), reference divider ratio or PFD frequency. The relationship Fref=R*Fpfd is always guaranteed by the GUI. 5.1.3 Output frequency Output frequency indication of RF1 and RF2 (the available resolution is shown based on exact or low spur mode). The user can enter the RF1 output frequency and VCO frequency directly. The RF2 output frequency is calculated according to the RF1/2_DIVSEL value. Resolution1/2 is a read-only field. It calculates the current frequency step obtained by increasing FRAC. It is controlled by MOD (a higher MOD value gives lower frequency resolution. (See Figure 8: STW81200 EVAL PLL programming tab.) 5.1.4 VCO settings The user must choose whether to enable the internal VCO or an external one (if mounted on STW81200-EVB or connected through J4). The desired VCO frequency and EXTERNAL VCO (Fvco) are set here. Note: VCO oscillator frequency values of 3000 MHz to 6000 MHz are allowed if using the internal VCO. The user can enter VCO frequency and the RF1, RF2 output frequency is calculated according to the RF1/2_DIVSEL value. 5.1.5 RF output section This section sets the RF1/2 output power, RF1/2 dividers and RF1/2 power down parameters. The user can modify RF1/2_DIVSEL, VCO, RF1, RF2 and the output frequency is calculated accordingly. DocID027934 Rev 2 15/30 30 STW81200-EVB GUI programming tabs 5.1.6 STW81200-EVB STSW-RFSOL002 Charge pump current The nominal charge pump current (Icp) can be set to control loop parameters (bandwidth and phase margin). Different settings are used to mitigate the integer boundary spurs level. It is recommended to leave these settings unchanged. Charge pump supply mode is set according to REGVCOHV_VOUT (see Figure 9) in the regulator tab. The user does not need to set this field in normal use. 5.2 PLL programming tab This section details the PLL settings tab shown in (Figure 8). Figure 8. STW81200 EVAL PLL programming tab 16/30 DocID027934 Rev 2 STW81200-EVB STSW-RFSOL002 STW81200-EVB GUI programming tabs To exploit all of the advanced features of the STW81200, the PLL settings tab must be used. All these settings are synchronized with affected parameters in the Main TAB. If, for example, the user modifies the frequency in the Main tab, the corresponding DSM settings are updated and vice versa, so all GUI information remains congruent. It is recommended to act on these parameters taking into account data sheet information, in particular regarding the DSM settings, as this can affect the performance. The GUI automatically selects the best values for each frequency configuration based on an internal algorithm. It is divided into three main sections • PLL: – DSM: FVCO=FPFD*(N+FRAC/MOD+DITHERING/(2*MOD) where DITHERING=0 or 1 – PFD_DEL: PFD anti-backlash delay – DSM_ORD: Delta sigma modulator order. Typically 3rd order is used. • Lock detector: Sets the lock detector counter and precision to trim LOCK detector speed and accuracy under different PLL settings. This also allows changing the polarity of the LOCK detector PIN (LD_ACTIVELOW). The GUI and STW81200-EVB board LEDs are not affected by the polarity settings (they always show LOCK condition if met independently from LD_ACTIVELOW) • Fast lock and cycle slip: Enable and set fast lock or cycle slip function, see the STW81200 data sheet [1] for details. DocID027934 Rev 2 17/30 30 STW81200-EVB GUI programming tabs 5.3 STW81200-EVB STSW-RFSOL002 Regulator programming tab This section details the linear regulator settings tab (REGs) shown in Figure 9. Figure 9. Linear power regulators settings tab The STW81200 embeds 5 LDOs for best supply noise rejection and block decoupling. Digital, VCO, RF, and PLL regulator default values cannot be changed by the user (they are shown for information only). The VCO HV regulator must be set according to the external power supply (between 3 V and 5.4 V), assuming that a 300 to 400 mV drop has to be guaranteed between the unregulated and regulated voltage. Typical configuration settings are: • Unregulated voltage VIN, 5.3 V<VIN<5.4 V, REGVCOHV_VOUT=5.0 V. Limits are set taking into account that 5.6 V is the AMR for STW81200 and 5.3 V is the minimum voltage to guarantee 300 mV drop • Unregulated voltage VIN, 4.8V<VIN<5.4V, REGOUTHV_VOUT=4.5V. This is the most commonly used setting in infrastructure applications as a 5.0 V line is available. It is the GUI default value. • Unregulated voltage VIN, 3.6 V<VIN<5.4 V, REGOUTHV_VOUT=3.3 V. This is commonly used in low-power infrastructure applications. • Unregulated voltage VIN, 2.9 V<VIN<5.4 V, REGOUTHV_VOUT=2.6 V. This is commonly used in ultra low-power infrastructure applications. Acting on regulator voltage, the GUI modifies also the CP_SUPPLY_MODE, VCO_Ampl and RF_OUT_PWR so that appropriate settings are always used. (An exception is made for RF_OUT_PWR when restoring a higher regulator voltage) These settings can be used together with low-power options. There is always a balance between STW81200 dissipated power and performance. It is recommended that the user 18/30 DocID027934 Rev 2 STW81200-EVB STSW-RFSOL002 STW81200-EVB GUI programming tabs tests the wanted configuration to check, in the application, the power dissipation against desired performance. 5.4 VCO programming tab This section details the VCO settings tab shown in Figure 10. Figure 10. VCO settings tab DocID027934 Rev 2 19/30 30 STW81200-EVB GUI programming tabs STW81200-EVB STSW-RFSOL002 The tab is divided in two main sections: • VCO settings: VCO_Ampl allows the user to balance VCO noise and current consumption. A higher value corresponds to higher current consumption and to better VCO phase noise performance. It is set according to REGVCOHV_VOUT in the Regulator tab. The user does not need to modify this field. • VCO Calibrator Enable_user_calibration: activates parameters associated with clock-frequency calibration (derived by dividing PFD clock by CALDIV). Pre-charge delay can be used to obtain more accurate results. Overall calibration time is also calculated. The STW81200 has 3 integrated VCOs with 32 bands (VCO_WORD) identified in a specific register. There are 2 main operating modes: – Automatic calibration (default). The user inserts the required frequency and WRITEs the corresponding registers. The device runs an internal calibration algorithm (calibration time is indicated in CAL_Time) that finds the most appropriate VCO/VCO_WORD value and synthesizes the frequency. The reference signal is needed to perform calibration. – Manual VCO/VCO_WORD register set. The calibration circuit is disabled and the VCO/VCO_WORD can be programmed immediately (there is no need to wait for CAL_Time to elapse). This feature is useful in fast frequency-hopping applications. The user is may run off-line calibration of a single or a multiple set of frequencies, read VCO/VCO_WORD values for each channel and store these registers, then reuse the previously-stored appropriate VCO/VCO_WORD. As in fast frequency hopping applications, overall settling time has to be minimized, it is also possible to use double buffering for the registers the user needs to modify (see STW81200 datasheet [1] for details). The GUI enables the double-buffering feature by default. External calibration is enabled by CALBWORD_SET. This disables the internal calibration procedure, forcing VCO and WORD values. This is used if previous calibration data is to be reused. In this case the overall settling time for a frequency change is reduced as the STW81200 does not run the calibrator. 20/30 DocID027934 Rev 2 STW81200-EVB STSW-RFSOL002 5.5 STW81200-EVB GUI programming tabs Low-power programming tab This section details the low-power programming tab shown in Figure 11. Figure 11. Low-power programming tab Each of the sections contained in this TAB allow the user to apply low-power mode to respective circuit sections. It allows the user to balance overall current consumption against performance. As many combinations of settings are possible, it is recommend to use the predefined configuration by checking the ‘Low power mode’ control shown in Figure 11. Note: For low-power consumption configurations, please use the 3 config files provided. Not all circuit parts are always on (for example if Fout = 2700 MHz only DIV2 is on and RF_DIV4/8/16/32/64_LP have no effect). DocID027934 Rev 2 21/30 30 J1 J2 5V Red 1 1 TP1 5V0 TP2 GND R9 R_470_0402_F R10 R_470_0402_F DL2 KP2012MGC LOCK, GREEN R36 XREF_STBY R37 R_120K_0603_F 5V0 EXTERNAL 2 S1 1 3 VCC R11 R_1k_0603_F SWITCH 1X2 USB KP2012EC DL3 PWR, RED 1 3 5 7 9 J3 2 4 6 8 10 PD_RF1 PTH HOLES 3V3 SCK LE XREF_STBY_3V3 3M HOLE Sheet 3 of GND TEST POINTS TP10 GND Monday , January 20, 2014 Document Number Ev al_Board_1_2014 STW81200 interf ace 3M HOLE Date: Size A4 Title 3M HOLE 3M HOLE 1 1 DL1 KP2012MGC ENABLE, GREEN GPIOH2_HI R_33k_0603_F M1 usb1232h-ds-v 13 HW_PD LD_SDO SDI PD_RF2 CONN_10PIN_2.54mm_INT DEPOP Straight, under USB module 1 1 2 2 TP9 GND Black PD PD_RF2 TP8 R35 R_0R0_0402 PD_RF2_FL_SW USB module (connector at edge of PCB) USB mini-B HW_PD SDI TP4 CLK TP5 R38 GPIOH2_HI TP3 PD_RF1 TP6 VCC R_1K0_0603_F LD_SDO TP7 LE PD_RF2 SDI SCK LD_SDO PD_RF1 LE XREF_STBY_3V3 18 17 16 15 14 13 12 11 10 SK GPIOL0 DO GPIOH0 GPIOH1 GPIOL2 GPIOH3 GPIOH2 GND2 GND1 DI GPIOL3 GPIOL1 CS PWREN GPIOH4 EXTVCC PORTVCC 1 2 3 4 5 6 7 8 9 5 Rev 1.3 DocID027934 Rev 2 22/30 Updated part values and part numbers are given in Section 7: STW81200-EVB BOM. Note: STW81200-EVB schematics 6 STW81200-EVB STSW-RFSOL002 STW81200-EVB schematics Figure 12. STW81200-EVB interfaces schematic JP1 2 C6 C_27U_EMIFIL_CAP C7 C_220N_0402_X7R_K_16 U1A 36 9 10 VIN_LDO_4V5 REG REG REF ALL REGs VIN_LDO_VCO VR REG PFD VIN_LDO_REF REG REG VIN_LDO_RF_DIG VREG_4V5 2.5/2.6/3.3/4.5 CBY P_4V5 VCC_VCO_Core VCO CP OUT VREG_VCO CBY P VDD_PFD VDD_CP VCC_CPOUT VCO BIAS BUF 2.5/2.6/2.7/2.8 CP VREG_REF 2.5/2.6/2.7/2.8 REF SPI VREG_DIG 2.5/2.6/2.7/2.8 BUF OUT VREG_RF VCC_RFOUT VDD_DSM/NDIV RF DIV 2.5/2.6/2.7/2.8 RF BUF 2 3 1 R8 R_0R2_0402_F C8 C_10U_0603_X5R_K_16 C10 R_0R0_0402 R_0R5_0402_F VREG_4V5 R12 C13 VREG_VCO VREG_PLL 1 of ST C12 5 Rev 1.3 C_10N_0402_COG_K_25 R32 R_0R0_0402 C_10U_0603_X5R_K_16 R_0R2_0402_F C15 C20 C_10U_0603_X5R_K_16 VREG_DIG C_10U_0603_X5R_K_16 C17 C_10N_0402_COG_K_25 C_1000P_0402_COG_K_50 C11 C_100N_0402_X7R_K_16 R33 R30 R_0R0_0402 C16 R_0R5_0402_F R6 C_220N_0402_X7R_K_16 C19 C23 C_220N_0402_X7R_K_16 R_0R5_0402_F R7 R41 R_0R0_0402 C_220N_0402_X7R_K_16 R14 C18 8 C14 7 17 C_100N_0402_X7R_K_16 14 16 19 27 29 26 32 C21 Sheet 23/30 DocID027934 Rev 2 VCC 1 Jumper_2 C5 C_10U_0603_X5R_K_16 18 28 DSM N DIV STW81200 STW81200 Power R_0R0_0402 R31 C_10N_0402_COG_K_25 C_10U_0603_X5R_K_16 C22 C_220N_0402_X7R_K_16 Title Monday , January 20, 2014 Size Document Number CustomEv al_Board_1_2014 Date: Updated part values and part numbers are given in Section 7: STW81200-EVB BOM. Note: EXP_PAD 37 STW81200-EVB schematics STW81200-EVB STSW-RFSOL002 Figure 13. STW81200-EVB power supply schematic 30 VREG_PLL J5 PSF-S01-007 J6 PSF-S01-007 RF2_OUTP RF2_OUTN C52 C45 C48 21 PDRF1 U1B R40 R_0R0_0402 DEPOP J4 PSF-S01-007 R16 GND2 Ana_B0430J50100A00 C35 C_100P_0402_COG_K_25 R39 R_0R0_0402 VCOs & BUFFER VCO CAL PHASE FREQ DETECT LOCK DET 2 4 1 R3 U5 2 VCC 3 3pin Jumper C2 Sheet 2 C_4N7_0805_C0G_J_50 1 C32 C_27U_EMIFIL_CAP R_120_0603_F R18 R_0R0_0402 DEPOP C31 C_470P_EMIFIL_CAP TP11 R4 C3 R_220R_0603_F Thursday , March 20, 2014 Document Number Ev al_Board_1_2014 STW81200 signal R_150_0603_F R1 GRM31M5C1H473JA01 C1 C_47N_1206_C0G_J_50 C_680P_0603_C0G_J_16 C_680P_0603_C0G_J_16 C4 R_0R0_0402 R5 VCTRL DEPOP VT GND_PAD U4 ZComm_CLVxxxxx RF_out DEPOP 15 VCTRL 11 ICP Title R_510R_0603_F DEPOP PD_RF2_FL_SW R_FL1 Vcc 3 R15 R_0R0_0402 ÷1/2...64 RF DIV N-DIV 21-BIT DELTA-SIG 13 BIT R-DIV Unbal Bal1 3 NC 4 1 GND1 C30 C_10P_0402_COG_K_25 R_0R0_0402 R17 DEPOP R_0R0_0402 T1 Check Anaren Datasheet C34 C_100P_0402_COG_K_25 RF2_OUTP RF BUF RF2_OUTN RF1_OUTP RF BUF RF1_OUTN PDRF2/FL_SW HW_PD TEST_SE ÷2 X2 SCK SPI SDI LOCK DET LE LD_SDO STW81200 REF_CLKP 20 REF_CLKN 24 23 25 22 35 4 6 31 30 34 33 5 Use 3x18 Ohm (or unequal power splitter) ifEXT VCO is enabled and terminate SMA connector with 50 Ohm PD_RF1 HW_PD PD_RF2_FL_SW RF1_OUTP minimize lenght RF1_OUTN C38 C_100P_0402_COG_K_25 C40 3 C_18P_0603_C0G_J_50 X1 NX2520SA 50 MHz S1-2070-1010-10(NDK) 2 R_3K6_0603_F R28 DEPOP C49 C_100N_0402_X7R_K_16 R27 R_51R_0402 DEPOP R23 R_100R_0402 DEPOP SCK SDI LE LD_SDO R_0R0_0402 R22 C_100N_0402_X7R_K_16 C_100P_0402_COG_K_25 1 4 EXTVCO_INP 12 Bal2 6 2 5 13 EXTVCO_INN C36 6 5 4 C_100P_0402_COG_K_25 C37 Bal1 NC Bal2 U7 IQD_CPFS-32 R_0R0_0402 R26 R_0R0_0402 R25 Ana_B0430J50100A00 GND1 Unbal C_100P_0402_COG_K_25 T2 3 GND2 C39 2 1 R_0R0_0402 R24 C_10P_0402_COG_K_25 C_100N_0402_X7R_K_16 C44 C47 C_100N_0402_X7R_K_16 J7 PSF-S01-007 PSF-S01-007 J8 DEPOP J9 PSF-S01-007 C51 C_27U_EMIFIL_CAP XREF_STBY C_18P_0603_C0G_J_50 R29 R_0R0_0603 DEPOP Size A3 Date: 5 VREG_4V5 of Rev 1.3 DocID027934 Rev 2 24/30 Updated part values and part numbers are given in Section 7: STW81200-EVB BOM. Note: 3 OUT GND 2 4 Vs STBY 1 STW81200-EVB STSW-RFSOL002 STW81200-EVB schematics Figure 14. STW81200-EVB Schematic – analog /RF signals STW81200-EVB STSW-RFSOL002 7 STW81200-EVB BOM STW81200-EVB BOM Table 2. STW81200-EVB BOM Reference Part Manufacturer Part Number Populated C1 C_47N_1206_C0G_J_50 Murata GRM31M5C1H473JA01 Y C2 C_4N7_0805_C0G_J_50 Murata GRM2165C1H472JA01 Y C3,C4 C_680P_0603_C0G_J_16 Murata GRM1885C1E681JA01 Y C5,C8,C13,C17,C20, C23 C_10U_0603_X5R_K_16 Murata GRM188R61C106MA73 Y C6 C_27U_EMIFIL_CAP Murata NFM31PC276B0J3 C7,C16,C18,C19,C22 C_220N_0402_X7R_K_16 Murata GRM155R71C224KA12 Y C10 C_1000P_0402_COG_K_50 Murata GRM1555C1H102JA01 C11,C14,C44,C45,C47, C_100N_0402_X7R_K_16 C48 Murata GRM155R71C104KA88 Y C12,C15,C21 C_10N_0402_COG_K_25 Murata GRM155R71E103KA01 Y C30,C39 C_10P_0402_COG_K_25 Murata GRM1555C1H100JA01 Y C31 C_470P_EMIFIL_CAP Murata NFM18CC471R1C3 Y C32,C51 C_27U_EMIFIL_CAP Murata NFM31PC276B0J3 Y C34,C35,C36,C37,C38, C_100P_0402_COG_K_25 C40 Murata GRM1555C1E101JA01 Y C49,C52 C_18P_0603_C0G_J_50 Murata GRM1885C1H180JA01 Y DL1 KP2012MGC Kingbright KP2012MGC Y DL2 KP2012MGC Kingbright KP2012MGC Y DL3 KP2012EC Kingbright KP2012EC Y JP1 Jumper_2 Samtec HTSW-102-07-G-S Y 5V Emerson Network Power 105-0752-001 Connectivity Solutions Y J2 GND Emerson Network Power 105-0753-001 Connectivity Solutions Y J3 CONN_10PIN_2.54mm_INT TE Connectivity 2-176 1603-3 DEPOP J4,J8 PSF-S01-007 Gigalane PSF-S01-007 DEPOP J5,J6,J7,J9 PSF-S01-007 Gigalane PSF-S01-007 Y MF1,MF2,MF3,MF4 3M HOLE Keystone 25510 Y M1 usb1232h-ds-v13 DLP design USB1232H-ds-v13 Y J1 DocID027934 Rev 2 Y Y 25/30 30 STW81200-EVB BOM STW81200-EVB STSW-RFSOL002 Table 2. STW81200-EVB BOM Reference Part Manufacturer Part Number Populated R_FL1 R_510R_0603_F Yageo RC0603FR-07510RL DEPOP R1 R_150_0603_F Yageo RC0603FR-07150RL Y R3 R_120_0603_F Yageo RC0603FR-07120RL Y R4 R_220R_0603_F Yageo RC0603FR-07220RL Y R5,R15,R17,R22,R24, R25,R26,R30,R31,R32, R_0R0_0402 R33,R35,R39,R40,R41 Panasonic ERJ-2GE0R00X Y R6,R7,R14 R_0R5_0402_F Yageo RL0402FR-070R5L Y R8,R12 R_0R2_0402_F Yageo RL0402FR-070R2L Y R9,R10 R_470_0402_F Yageo RC0402FR-07470RL Y R11 R_1k_0603_F Yageo RC0603FR-071KL Y R16,R18 R_0R0_0402 Panasonic ERJ-2GE0R00X DEPOP R23 R_100R_0402 Panasonic DEPOP R27 R_51R_0402 Panasonic DEPOP R28 R_3K6_0603_F Yageo R29 R_0R0_0603 Panasonic R36 R_33k_0603_F Yageo RC0603FR-0733KL Y R37 R_120K_0603_F Yageo RC0603FR-07120KL Y R38 R_1K0_0603_F Yageo RC0603FR-071KL Y S1 SWITCH 1X2 EOZ 09.03201.02 Y TP1 5V0 Keystone 5005 Y TP2,TP10 GND Keystone 5006 Y TP3 LD_SDO Keystone 5005 DEPOP TP4 SDI Keystone 5005 DEPOP TP5 CLK Keystone 5005 DEPOP TP6 LE Keystone 5005 DEPOP TP7 PD_RF1 Keystone 5005 DEPOP TP8 PD_RF2 Keystone 5005 DEPOP TP9 PD Keystone 5005 DEPOP TP11 VCTRL Keystone 5005 DEPOP T1,T2 Ana_B0430J50100A00 Anaren B0430J50100A00 Y U1 STW81200 U4 ZComm_CLVxxxxx ZComm N.A. DEPOP U5 3pin Jumper Samtec PHT-103-01-L-S Y 26/30 RC0603FR-073K6L DEPOP DEPOP Y DocID027934 Rev 2 STW81200-EVB STSW-RFSOL002 STW81200-EVB BOM Table 2. STW81200-EVB BOM Reference Part Manufacturer Part Number Populated U7 IQD_CPFS-32 IQD LFSPXO056090 Y X1 NX2520SA 50 MHz S1-20701010-10(NDK) NDK NX2520SA Y Note: DEPOP stands for not populated DocID027934 Rev 2 27/30 30 Reference documents 8 STW81200-EVB STSW-RFSOL002 Reference documents Table 3. Reference documents Reference Revision [1] Latest version 28/30 Title STW81200 Wideband RF fractional/integer frequency synthesizer with integrated VCOs Preliminary Data sheet, Document ID025943 DocID027934 Rev 2 STW81200-EVB STSW-RFSOL002 9 Revision history Revision history Table 4. Document revision history Date Revision Changes 10-Jun-2015 1 Initial release. 09-Jul-2015 2 Added RPN ‘STSW-RFSOL002’ to cover page and headers. Removed redundant content from Table 2: STW81200-EVB BOM. DocID027934 Rev 2 29/30 30 STW81200-EVB STSW-RFSOL002 IMPORTANT NOTICE – PLEASE READ CAREFULLY STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’ products. No license, express or implied, to any intellectual property right is granted by ST herein. Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners. Information in this document supersedes and replaces information previously supplied in any prior versions of this document. © 2015 STMicroelectronics – All rights reserved 30/30 DocID027934 Rev 2