PDF HMC702LP6CE Data sheet ( Hoja de datos )

Número de pieza	HMC702LP6CE
Descripción	14 GHz 16-bit Fractional-N Synthesizer
Fabricantes	Hittite Microwave Corporation
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HMC702LP6CE v10.0812 14 GHz 16-BIT FRACTIONAL-N PLL Features • Fractional or Integer Modes • 14 GHz, 16-Bit RF N-Counter • 24-Bit Step Size Resolution, 6 Hz typ • Ultra Low Phase Noise 12 GHz, 50 MHz Ref. -98 / -103 dBc/Hz @ 20 kHz (Frac / Integer) • Reference Path Input: 200 MHz • 14-Bit Reference Path Divider Typical Applications • Base Stations for Mobile Radio (GSM, PCS, DCS, CDMA, WCDMA) • Wireless LANs, WiMax • Communications Test Equipment • Low Fractional Spurious • Reference spurs: -90 dBc typ • Auto and Triggered Sweeper Functions • Cycle Slip Prevention (CSP) for fast settling • Auxiliary Clock Source • 40 Lead 6x6mm SMT Package: 36mm² • CATV Equipment • FMCW Sensors • Automotive Radar • Phased-Array Systems Functional Diagram For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824 1 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] 1 page v10.0812 HMC702LP6CE 14 GHz 16-BIT FRACTIONAL-N PLL Table 3. Pin Description Pin No. 1 2 3 4 5 6 7 8 9 10, 20, 21 11 12 13 14 15 16 17 18 19 22 23 24 Pin Name VCCPRS VCCOA VPPCP CP GNDCP GNDDRV VPPDRV VDDPD GNDPD N/C VDDPDV GNDPDV VDDPDR GNDPDR XREFP RVDD XSIN REFCAP RSTB DVDD GPO1 GPO2 PIn Type Supply Supply Supply Analog O/P GND GND Supply Supply GND N/C Supply GND Supply GND Analog I/P Supply Analog I/P Analog I/O CMOS I/P Supply DO DO 25 GPO3 DIO 26 DVDDQ Supply 27 SEN CMOS I/P 28 SDI CMOS I/P 29 SCK CMOS I/P 30 VSLE DO 31 VSDO DO 32 VSCK DO 33 LD_SDO CMOS O/P 34 DVDDIO Supply 35 DVDD Supply 36 GNDHF GND 37 VCOIN RF I/P 38 GNDHF GND 39 VCCHF Supply 40 BIAS Analog I/P Description RF Prescaler Power Supply. Nominally +3.3V ChargePump OpAmp Power Supply. Nominally +5V Power Supply for Charge Pump. Nominally +5V Charge Pump output Power Supply GND for Charge Pump Charge Pump GND Power supply for Charge Pump, Nominally +5V Power Supply for Phase Detectors, Nominally +5V Power Supply GND for Phase Detector No Connection Power Supply for Phase Detector VCO Path, Nominally +5V Power Supply GND for Phase Detector VCO Path Power Supply for Phase Detector Ref Path, Nominally +5V Power Supply GND for Phase Detector Ref Path Square Wave Crystal Ref Input Power Supply for Ref Path, Nominally +3.3V Sinusoidal Crystal reference input Reference Path bypass Reset Input (active low). Cycle low for >Tref to reset. Recommended after power-up Digital Power Supply, Nominally +3.3V General Purpose Output 1 with Tristate General Purpose Output 2 with Tristate General Purpose Input/Output with Tristate may be configured for External Ramp trigger Input. See register REG 14h[5] Quiet Supply, Nominal +3.3V, Zero Current Main Serial port enable input Main Serial port data input Main Serial port clock input Leave pin disconnected. Leave pin disconnected. Leave pin disconnected. Lock Detect or Main Serial Port Data Output Power Supply for digital I/O, matches external Digital Supply in 1.8V to 5.5V range Internal Digital Power Supply. Nominally 3.3V Ground for RF Input to the RF prescaler Ground for RF Input RF Section Power Supply. Nominally 3.3V Decoupling Pin for RF section, nominally external 1nF bypassed to VCCHF For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824 5 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] 5 Page v10.0812 HMC702LP6CE 14 GHz 16-BIT FRACTIONAL-N PLL RF Path ’N’ Divider The main RF path divider including a fixed divide-by-2, is capable of average divide ratios of even numbers between 131,062 and 72 in fractional mode, and 131,070 to 64 in integer mode. The reason for the difference between integer and fractional modes is that the fractional divider actually divides by up to ±4 from the average divide number. Actual division ratios when used with a given VCO will depend upon the reference frequency used and the desired output band. General Purpose Output (GPO) Interface The HMC702LP6CE features a 3-wire General Purpose Output (GPO) interface. GPO registers are described in Reg1Bh Table 32. The GPO is a flexible interface that supports a number of different functions and real time waveform access including: a. General Data Output from SPI register gpo_sel_0_ data (gpo_sel=0) b. Prescaler & reference path outputs (gpo_sel=1) c. Lock Detect Windows (gpo_sel=2) d. Anti-cycle Slip waveforms (gpo_sel=3) f. Δ∑ Modulator Phase Accumulator (gposel=6) g. Auxiliary oscillators (gposel=7) h. Multiple VCO Control, Latch Enables (gposel=9) i. Δ∑ Modulator Outputs (gposel=10) e. Internal synchronized frac strobe with clocks (gposel=4) General Data to GPO (gpo_sel=0) Setting register gpo_sel=0 in Table 32 assigns the 3-bit data from register gpo_sel_0_data Reg1B<6:4> to the GPO bus. Prescaler and Reference Path Outputs (gpo_sel = 1) Setting register gpo_sel=1 (Reg1B<3:0> Table 32) results in the input crystal being buffered out to GPO3 as shown in Figure 6. This is useful for example to generate a copy of the input crystal signal to drive other circuits in the application, while at the same time isolating the noisy circuits from the sensitive crystal output. Often only the synthesizer requires very low phase noise from the crystal, hence it is desirable to isolate other circuits from the crystal itself and allow the synthesizer sole use of the low phase noise crystal. gpo_sel=1 also routes the 250 MHz 14-bit reference path divider to GP02 and the 16-bit 14 GHz VCO path prescaler output to GP01. This option allows the synthesizer to function as a stand alone fractional or integer prescaler and provides visibility into the prescaler and reference path timing for sensitive applications. Figure 6. gpo_01 Outputs For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824 11 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] 11 Page

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