Frequency Synthesizer
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1 Frequency Synthesizer to MHz The Big Deal Fast settling time, 0.03 msec max Low phase noise and spurious High reliability over temperature changes RSN-795AF-119+ CASE STYLE: JG1228 Product Overview The RSN-795AF-119+ is a Frequency Synthesizer, designed to operate from to MHz for GSM application. The RSN-795AF-119+ is packaged in a metal case (size of 0.910" x 0.910" x 0.252") to shield against unwanted signals and noise.the RSN-795AF Frequency Synthesizer can be used as local oscillators in the upconversion and down-conversion sections of wireless receivers and transmitters, with very high reliability over temperature changes due to use of high quality components which are secured to substrate with chip adhesive in addition to solder Key Features Feature Low phase noise and spurious: Phase Noise: -103 dbc/hz 10 khz offset Step Size Spurious: -77 dbc typ. Comparison Spurious: -113 dbc typ. Reference Spurious: -124 dbc typ. Advantages Low phase noise and spurious improve system EVM (Error Vector Magnitude). Fast settling time Small size, 0.910" x 0.910" x 0.252" Less than 0.03 msec Max within 5.4deg can be used for fast settling applications. The small size enables the RSN-795AF-119+ to be used in compact designs. Page 1 of 13
2 to MHz Features Fractional N synthesizer Fast settling time, 0.03 msec max Low phase noise and spurious High reliability over temperature changes Low operating voltage (VCC VCO=+5.5V, VCC PLL=+3.3V VCC CP=+5.0V) Small size 0.910" x 0.910" x 0.252" Applications GSM CASE STYLE: JG1228 +RoHS Compliant The +Suffix identifies RoHS Compliance. See our web site for RoHS Compliance methodologies and qualifications General Description The RSN-795AF-119+ is a Frequency Synthesizer, designed to operate from to MHz for GSM application. The RSN-795AF-119+ is packaged in a metal case (size of 0.910" x 0.910" x 0.252") to shield against unwanted signals and noise.the RSN-795AF-119+ Frequency Synthesizer can be used as local oscillators in the upconversion and down-conversion sections of wireless receivers and transmitters, with very high reliability over temperature changes due to use of high quality components which are secured to substrate with chip adhesive in addition to solder. LE DATA CLOCK LOCK DET GND VCC VCO FREF XTAL REF In 1/R R COUNTER K Phase Detector / Charge Pump CP LOOP FILTER Vt VCO (External) PLL 1/N N COUNTER RFinA SPLITTER RF Out VP VCC PLL VCC CP REV. B M EDR-8430/7F1 RSN-795AF-119+ Category-F8 RAV Page 2 of 13
3 (over operating temperature -40 C to ) Parameters Test Conditions Min. Typ. Max. Units Frequency Range MHz Step Size khz Comparison Frequency MHz Settling Time Within ± 5.4 deg msec Output Power Hz offset khz offset SSB Phase 10 khz offset khz offset - 1 MHz offset Step Size Spurious Suppression Step Size 200 khz Step Size Spurious Suppression 0.5 Step Size 100 khz Reference Spurious Suppression Ref. Freq. 52 MHz Comparison Spurious Suppression Comp. Freq. 13 MHz dbc Non - Harmonic Spurious Suppression Harmonic Suppression VCO Supply Voltage PLL Supply Voltage V CP Supply Voltage VCO Supply Current PLL Supply Current ma CP Supply Current Frequency 52 (square wave) MHz Reference Input Amplitude V P-P (External) Input impedance Phase 1 khz offset dbc/hz RF Output port Impedance Input Logic Level Input high voltage V Input low voltage V Digital Lock Detect Locked V Unlocked V Frequency Synthesizer PLL - ADF4193 PLL Programming (Note*) - 3-wire serial 3.3V CMOS R0_Register - (MSB) (LSB) R1_Register - (MSB) (LSB) R2_Register - (MSB) (LSB) Register MHz R3_Register - (MSB) (LSB) R4_Register - (MSB) (LSB) R5_Register - (MSB) 101 (LSB) R6_Register - (MSB) (LSB) R7_Register - (MSB) 111 (LSB) Note* : Tested with GSM900RX_13M_PHASE CODE (GSM900/GSM850 RX, version 1.0) from "Analog Devices" recommendation for ADF4193 PLL. Absolute Maximum Ratings Parameters Ratings VCO Supply Voltage +6.3V PLL Supply Voltage +3.6V CP Supply Voltage +5.8V CP Supply Voltage to PLL Supply Voltage -0.3V to 5.8V Reference Frequency Voltage -0.3Vmin, VCC PLL +0.3Vmax Data, Clock, LE Levels -0.3Vmin, VCC PLL +0.3Vmax Operating Temperature -40 C to Storage Temperature -55 C to +100 C Permanent damage may occur if any of these limits are exceeded Page 3 of 13
4 Typical Performance Data FREQUENCY POWER OUTPUT VCO CURRENT PLL CURENT CP CURENT (MHz) (dbm) (ma) (ma) (ma) FREQUENCY HARMONICS (dbc) (MHz) F2 F Page 4 of 13
5 PHASE NOISE FREQUENCY (MHz) 100Hz 1kHz 10kHz 100kHz 1MHz PHASE NOISE FREQUENCY (MHz) 100Hz 1kHz 10kHz 100kHz 1MHz PHASE NOISE FREQUENCY (MHz) 100Hz 1kHz 10kHz 100kHz 1MHz Page 5 of 13
6 COMPARISON SPURIOUS ORDER COMPARISON 760.6MHz+(n*Fcomparison) (dbc) note 1 Note 1: Comparison frequency 13 MHz Note 2: All spurs are referenced to carrier signal (n=0). COMPARISON 778MHz+(n*Fcomparison) (dbc) note 1 COMPARISON 795.4MHz+(n*Fcomparison) (dbc) note 1 n note REFERENCE SPURIOUS ORDER REFERENCE 760.6MHz+(n*Freference) (dbc) note 3 REFERENCE 778MHz+(n*Freference) (dbc) note 3 REFERENCE 795.4MHz+(n*Freference) (dbc) note 3 n note Note 3: Reference frequency 52 MHz Note 4: All spurs are referenced to carrier signal (n=0). Page 6 of 13
7 STEP SIZE SPURIOUS ORDER 0.5 STEP SIZE & STEP SIZE 760.6MHz+(n*Fstep size) (dbc) note 5 Note 5: Step size 200 khz Note 6: All spurs are referenced to carrier signal (n=0). 0.5 STEP SIZE & STEP SIZE 778MHz+(n*Fstep size) (dbc) note STEP SIZE & STEP SIZE 795.4MHz+(n*Fstep size) (dbc) note 5 n note Page 7 of 13
8 Typical Performance Curves 7 OUTPUT POWER Vs FREQUENCY OUTPUT POWER (dbm) nd HARM. SUPPRESSION (dbc) nd HARMONIC Vs FREQUENCY 3rd HARM. SUPPRESSION (dbc) rd HARMONIC Vs FREQUENCY Page 8 of 13
9 -75 PHASE offset -90 PHASE offset PHASE NOISE (dbc/hz) PHASE NOISE (dbc/hz) PHASE offset PHASE offset PHASE NOISE (dbc/hz) -105 PHASE NOISE (dbc/hz) PHASE offset PHASE NOISE (dbc/hz) Page 9 of 13
10 COMPARISON SPURIOUS Vs FREQ. Fcar = 760.6MHz REFERENCE SPURIOUS Vs FREQ. Fcar = 760.6MHz COMP. SPURIOUS (dbc) REF. SPURIOUS (dbc) COMPARISON SPURIOUS Vs FREQ. Fcar = 778MHz REFERENCE SPURIOUS Vs FREQ. Fcar = 778MHz COMP. SPURIOUS (dbc) REF. SPURIOUS (dbc) COMPARISON SPURIOUS Vs FREQ. Fcar = 795.4MHz REFERENCE SPURIOUS Vs FREQ. Fcar = 795.4MHz COMP. SPURIOUS (dbc) REF. SPURIOUS (dbc) Page 10 of 13
11 STEP SIZE & STEP SIZE SPURIOUS Vs FREQ. Fcar =760.6MHz STEP SIZE SPURIOUS (dbc) STEP SIZE & STEP SIZE SPURIOUS Vs FREQ. Fcar = 778MHz STEP SIZE SPURIOUS (dbc) STEP SIZE & STEP SIZE SPURIOUS Vs FREQ. Fcar = 795.4MHz STEP SIZE SPURIOUS (dbc)) Page 11 of 13
12 INDEX DOT Recommended Application Circuit Note: REF IN and RF OUT ports are internally AC coupled. Pin Connection Pin Function Number 1 GND 2 GND 3 GND 4 RF OUT 5 GND 6 GND 7 LOCK DET 8 LE 9 DATA 10 CLOCK 11 GND 12 REF IN 13 GND 14 GND 15 GND 16 VCC CP 17 VCC PLL 18 Not Connected 19 VCC VCO 20 GND V 10 μf 0.1 μf 16 GND CP-VCC CLOCK V +5.5V 10 μf 0.1 μf 10 μf 0.1 μf VCC PLL NOT CONNECTED VCC VCO GND GND REF IN RF OUT DATA LE LOCK DET GND Page 12 of 13
13 Device Marking DATE CODE MCL RSN-795AF INDEX DOT 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: JG1228 Tape & Reel: TR-F99 Suggested Layout for PCB Design: PL-319 Evaluation Board: TB-554+ Environment Ratings: ENV65T2 Page 13 of 13
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