Frequency Synthesizer

Transcription

1 50Ω The Big Deal 7600 to 7800 MHz Low phase noise and spurious Fast settling time, 50µs Max Robust design and construction Frequency modulation capability Size 2.75" x 1.96" x 0.75" CASE STYLE: KF1336 Product Overview The is a Frequency Synthesizer, designed to operate from 7600 to 7800 MHz suitable for a variety of military & commercial applications. The is packaged in a shielded metal case (size of 2.75" x 1.96" x 0.75") to shield against unwanted signals and noise. Key Features Feature Low phase noise and spurious: Phase noise: -88 dbc/hz 10 khz offset Comparison spurious: -66 dbc typ. Reference spurious: -86 dbc typ. Advantages Low phase noise and spurious improve system EVM (Error Vector Magnitude). Fast settling time Less than 50µ sec Max, can be used for fast settling applications. Frequency Modulation Modulation frequency from100 Hz to modulation voltage from 0.3V to 3.0V. No reference required. The Internal reference signal removes the need to provide a reference signal and simplifies the setup of the Page 1 of 11

2 Connectorized Frequency Synthesizer 50Ω Features Fast settling time, 50µs Max High reliability over temperature changes Robust design and construction Operating voltage (VCC =+12V) Case size 2.75" x 1.96" x 0.75" Frequency modulation capability Applications Military 7600 to 7800 MHz CASE STYLE: KF1336 Connectors SMA Female Model +RoHS Compliant The +Suffix identifies RoHS Compliance. See our web site for RoHS Compliance methodologies and qualifications General Description The is a Frequency Synthesizer, designed to operate from 7600 to 7800 MHz suitable for a variety of military & commercial applications. The is packaged in a shielded metal case (size of 2.75" x 1.96" x 0.75") to shield against unwanted signals and noise, with an SMA(F) RF output and all controls through a 15 pin D-Sub. Simplified Schematic MODULATION GND VCC FREF XTAL REF In LE DATA CLOCK LOCK VCC DET PLL 1/R R COUNTER KΦ Phase Detector / Charge Pump VP CP LOOP FILTER Vt VCO (Internal) PLL 1/N N COUNTER RFinA SPLITTER x2 RF Out REV. C M EDR-9891/2F1 Category-U28 RAV Page 2 of 11

3 Electrical Specifications (over operating temperature -40 C to ) Parameters Test Conditions Min. Typ. Max. Units Frequency Range MHz Step Size MHz Settling Time Within ± 1 khz msec Frequency Stability - - ±55 - khz Output Power Hz offset - 1 khz offset SSB Phase 10 khz offset khz offset - 1 MHz offset Integrated SSB Phase 100Hz to 1MHz dbc Reference Spurious Suppression Ref. Freq. 20 MHz Comparison Spurious Suppression Step Size 5 MHz dbc Non - Harmonic Spurious Suppression F0.5 & F1.5 & F2 Harmonic Suppression dbc F2.5 & F3 Harmonic Suppression dbc VCC Power Supply V VCC Supply Current ma Frequency Modulation (see table below) Hz Modulation Voltage (see table below) ± ±0.05 V Frequency 20 (square wave) MHz Reference Input (Internal) Amplitude V P-P Input impedance KΩ Phase 1 khz offset dbc/hz RF Output port Impedance Ω Input Logic Level Input high voltage V Input low voltage V Digital Lock Detect Locked V Unlocked V Frequency Synthesizer PLL - ADF4106 PLL Programming - 3-wire serial 3.12V CMOS Register Map NOTE 1 F_Register NOTES 2, MHz Prescaler Value Power- Down 2 Current Setting 2 Current Setting 1 Timer Counter Control Fastlock Mode Fastlock Enable CP Three- State PD Polarity Muxout Control Power- Down Control Bits Reserved CP Gain 13-Bit B Counter 6-Bit A Counter Don't Care Reserved Lock Detect Precision Test Mode Bits Anti-Backlash Width 14-BIT Reference Counter, R R_Register Ø Note 1: Registers Load Sequence on power up: Initialization Register, R Register, N Register. Note 2: Once the Synthesizer has been initialized Register F or Initialization register can be used interchangeably. Note 3: For the Initialization Register use Register F with Control Bits 11. Counter Reset Control Bits Control Bits Page 3 of 11

4 Frequency Deviation From Carrier Vs Modulation Voltage TYPICAL FREQUENCY DEVIATION FROM MHz ) (Hz) MODULATION VOLTAGE (V) The frequency decreases as the modulation voltage increases. Absolute Maximum Ratings Parameters Supply Voltage Data, Clock, LE Levels Modulation Levels Operating Temperature Storage Temperature Permanent damage may occur if any of these limits are exceeded Ratings 13V -0.3Vmin, +3.3Vmax -0.5Vmin, +4Vmax -40 C to -55 C to +100 C Page 4 of 11

5 Typical Performance Data FREQUENCY POWER OUTPUT VCO CURRENT (MHz) (dbm) (ma) FREQUENCY HARMONICS (dbc) (MHz) F0.5 F1.5 F FREQUENCY HARMONICS (dbc) (MHz) F2.5 F Page 5 of 11

6 FREQUENCY (MHz) PHASE NOISE 100Hz 1kHz 10kHz 100kHz 1MHz FREQUENCY (MHz) PHASE NOISE 100Hz 1kHz 10kHz 100kHz 1MHz FREQUENCY (MHz) PHASE NOISE 100Hz 1kHz 10kHz 100kHz 1MHz Page 6 of 11

7 Modulation Carrier Frequency deviation Voltage Frequency from carrier [V] [MHz] [Hz] (REF) Modulation Carrier Frequency deviation Voltage Frequency from carrier [V] [MHz] [Hz] (REF) Modulation Carrier Frequency deviation Voltage Frequency from carrier [V] [MHz] [Hz] (REF) Page 7 of 11

8 COMPARISON SPURIOUS ORDER COMPARISON 7600MHz+(n*Freference) (dbc) note 1 COMPARISON 7700MHz+(n*Freference) (dbc) note 1 COMPARISON 7800MHz+(n*Freference) (dbc) note 1 n note Note 1: Comparison frequency 5 MHz Note 2: All spurs are referenced to carrier signal (n=0). REFERENCE SPURIOUS ORDER REFERENCE 7600MHz+(n*Fcomparison) (dbc) note 3 REFERENCE 7700MHz+(n*Fcomparison) (dbc) note 3 REFERENCE 7800MHz+(n*Fcomparison) (dbc) note 3 n note Note 3: Reference frequency 20 MHz Note 4: All spurs are referenced to carrier signal (n=0). Page 8 of 11

9 Typical Performance Curves OUTPUT POWER (dbm) OUTPUT POWER Vs FREQUENCY HARM. SUPPRESSION (dbc) 0.5 HARMONIC Vs FREQUENCY HARM. SUPPRESSION (dbc) HARMONIC Vs FREQUENCY 2nd HARM. SUPPRESSION (dbc) -40 2nd HARMONIC Vs FREQUENCY 2.5 HARM. SUPPRESSION (dbc) 2.5 HARMONIC Vs FREQUENCY rd HARM. SUPPRESSION (dbc) rd HARMONIC Vs FREQUENCY Page 9 of 11

10 PHASE offset PHASE offset PHASE NOISE (dbc/hz) PHASE NOISE (dbc/hz) PHASE khz offset -75 PHASE khz offset PHASE NOISE (dbc/hz) -85 PHASE NOISE (dbc/hz) PHASE NOISE (dbc/hz) PHASE offset -125 Page 10 of 11

11 COMP. SPURIOUS (dbc) COMPARISON SPURIOUS Vs FREQ. Fcar = 7600MHz FREQUENCY OFFSET (MHz) REF. SPURIOUS (dbc) REFERENCE SPURIOUS Vs FREQ. Fcar = 7600MHz FREQUENCY OFFSET (MHz) COMP. SPURIOUS (dbc) COMP. SPURIOUS (dbc) COMPARISON SPURIOUS Vs FREQ. Fcar = 7700MHz FREQUENCY OFFSET (MHz) COMPARISON SPURIOUS Vs FREQ. Fcar = 7800MHz FREQUENCY OFFSET (MHz) REF. SPURIOUS (dbc) REF. SPURIOUS (dbc) REFERENCE SPURIOUS Vs FREQ. Fcar = 7700MHz FREQUENCY OFFSET (MHz) REFERENCE SPURIOUS Vs FREQ. Fcar = 7800MHz FREQUENCY OFFSET (MHz) Page 11 of 11

12 Connectors Configuration PIN # 15 PIN # 8 PIN # 1 PIN # 9 D-SUBMINIATURE MALE 15 PINS Connection Pin Function Number 1 GND 2 MODULATION 3 GND 4 LOCK DET 5 LE 6 DATA 7 CLOCK 8 VCC 9 GND 10 GND 11 GND 12 GND 13 GND 14 GND 15 GND Additional Detailed Technical Information Additional information is available on our web site. To access this information enter the model number on our web site home page. Case Style: KF1336 Tape & Reel: N.A. Suggested Layout for PCB Design: N.A. Evaluation Board: N.A. Environment Ratings: ENV48T3 Synthesizer evaluation software to set PLL registers manually is available at Page 12 of 11