HMC791LC4B v02.1209 3 28 GHz CLOCK DIVIDE-BY-2 / DIVIDE-BY-4 Typical Applications Features The HMC791LC4B is ideal for: Supports Clock Frequencies up to 28 GHz • Frequency Division up to 28 GHz Simultaneous Divide-by-2 and Divide-by-4 Outputs • Short, Intermediate, Long Haul Fiber Optic Applications Differential and Single-Ended Operation [1] Fast Rise and Fall Times (12 / 14 ps) HIGH SPEED LOGIC - SMT • 100 GbE Applications Low Power Consumption: 660mW • Serial Data Transmission Systems up to 28 GHz • Broadband Test and Measurement Applications Single Negative Power Supply (-3.3V) Output Signal Swing: 600mV p-p Differential Ultra Low SSB Phase Noise: -151 dBc/Hz 24 Lead 4x4mm SMT Package: 16mm 2 Functional Diagram General Description The HMC791LC4B is a low-noise divide-by-2, divideby-4 designed to support input clock frequencies as high as 28 GHz. When an input clock signal is applied, divide-by-2 and divide-by-4 outputs are observed simultaneously. All input signals to the HMC791LC4B are terminated with 50Ω to ground on-chip, and may be either AC or DC coupled. Outputs can be connected directly to a 50Ω terminated system, while DC blocking capacitors must be used if the terminating system is 50Ω to a non-zero voltage. The HMC791LC4B operates from a single -3.3V DC supply and is available in a ceramic RoHS compliant SMT package. Electrical Specifications, TA = +25° C, Vee = Vee1 = Vee2 = Vee3 = -3.3V Parameter Power Supply Voltage Conditions Min. Typ. Max. ±10% Tolerance -3.0 -3.3 -3.6 Total Supply Current 200 Input Frequency Input Amplitude Range (Single-Ended) [2] Units V mA 0.1 28 GHz 1.0 - 6 GHz -7 +6 dBm 6 - 12 GHz -20 +6 dBm 12 - 16 GHz -20 +3 dBm 16 - 28 GHz -20 +5 dBm Input Return Loss <20 GHz 9 Input High Voltage GND Referenced -0.5 0.5 dB V Input Low Voltage GND Referenced -1 0 V [1] See recommended single ended and differential configurations [2] See recommended single ended configuration. 3-1 For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] HMC791LC4B v02.1209 28 GHz CLOCK DIVIDE-BY-2 / DIVIDE-BY-4 Electrical Specifications, TA = +25° C, Vee = Vee1 = Vee2 = Vee3 = -3.3V Conditions Min. Typ. Max. Units Differential p-p 600 mV CK/4 Output Amplitude mV Differential p-p 600 CK/2 Output Return Loss <14 GHz 10 dB CK/4 Output Return Loss <7 GHz 15 dB mV CK/2 Output High Voltage GND Referenced -10 CK/2 Output Low Voltage GND Referenced -340 mV CK/4 Output High Voltage GND Referenced -9 mV CK/4 Output Low Voltage GND Referenced -350 mV @ 28 GHz, CK/2 Output, RMS 200 fs @ 28 GHz, CK/4 Output, RMS 280 fs CK/2 Output Rise/Fall Time @ 28 GHz Input, 20% - 80% 12 / 14 ps CK/4 Output Rise/Fall Time @ 28 GHz Input, 20% - 80% 17 / 16 ps Additive Random Jitter [1] CK/2 SSB Phase Noise 10 GHz input @ 100 kHz Offset -151 dBc/Hz CK/4 SSB Phase Noise 10 GHz input @ 100 kHz Offset -150 dBc/Hz 2 2 [1] Cable and eval board contribution is de-embedded. RJadded = √ [ (RJtested) – (RJthru) ] DC Current vs. Vee Over Temperature Recommended Operating Window [2] 10 INPUT AMPLITUDE RANGE (dBm) 300 DC CURRENT (mA) 250 200 150 25C 85C -5C 100 50 0 -3.6 3 HIGH SPEED LOGIC - SMT Parameter CK/2 Output Amplitude 5 0 -5 Recommended Operating Window -10 -15 -20 -25 -3.45 -3.3 -3.15 SUPPLY VOLTAGE Vee (V) -3 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 FREQUENCY (GHz) [2] See recommended single ended configuration. For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] 3-2 HMC791LC4B v02.1209 28 GHz CLOCK DIVIDE-BY-2 / DIVIDE-BY-4 Differential Output Voltage vs. Vee Over Temperature, Divide-by-4 800 700 700 DIFFERENTIAL VOLTAGE (mV) 800 600 500 400 300 25C 85C -5C 200 100 0 -3.6 -3.45 -3.3 -3.15 600 500 400 200 100 0 -3.6 -3 25C 85C -5C 300 -3.45 SUPPLY VOLTAGE Vee (V) RISE TIME 20%-80% (ps) 12 10 8 25C 85C -5C 6 4 20 16 25C 85C -5C 12 8 4 2 -3.45 -3.3 -3.15 0 -3.6 -3 -3.45 Fall Time vs. Vee Over Temperature, Divide-by-2 -3.15 -3 Fall Time vs. Vee Over Temperature, Divide-by-4 24 16 FALL TIME 20%-80% (ps) 14 FALL TIME 20%-80% (ps) -3.3 SUPPLY VOLTAGE Vee (V) SUPPLY VOLTAGE Vee (V) 12 10 8 25C 85C -5C 6 4 20 16 12 25C 85C -5C 8 4 2 -3.45 -3.3 -3.15 SUPPLY VOLTAGE Vee (V) 3-3 -3 24 14 0 -3.6 -3.15 Rise Time vs. Vee Over Temperature, Divide-by-4 16 0 -3.6 -3.3 SUPPLY VOLTAGE Vee (V) Rise Time vs. Vee Over Temperature, Divide-by-2 RISE TIME 20%-80% (ps) HIGH SPEED LOGIC - SMT 3 DIFFERENTIAL VOLTAGE (mV) Differential Output Voltage vs. Vee Over Temperature, Divide-by-2 -3 0 -3.6 -3.45 -3.3 -3.15 -3 SUPPLY VOLTAGE Vee (V) For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] HMC791LC4B v02.1209 28 GHz CLOCK DIVIDE-BY-2 / DIVIDE-BY-4 RMS Jitter vs. Vee Over Temperature, Divide-by-4 RMS Jitter vs. Vee Over Temperature, Divide-by-2 500 25C 85C -5C +25C +85C -5C 400 RMS JITTER (fs) RMS JITTER (fs) 250 200 150 100 200 100 50 0 -3.6 -3.45 -3.3 -3.15 0 -3.6 -3 -3.45 SUPPLY VOLTAGE Vee (V) -3.15 -3 Phase Noise vs. Offset Frequency, Divide-by-4 [1] 0 0 -20 -20 SSB PHASE NOISE (dBc/Hz) SSB PHASE NOISE (dBc/Hz) -3.3 SUPPLY VOLTAGE Vee (V) Phase Noise vs. Offset Frequency, Divide-by-2 [1] -40 -60 -80 -100 -120 -140 -40 -60 -80 -100 -120 -140 -160 1 10 -160 10 2 10 3 10 4 10 5 10 6 10 7 10 8 10 1 10 FREQUENCY OFFSET (Hz) 2 10 3 10 4 10 5 10 6 10 7 10 8 FREQUENCY OFFSET (Hz) Input Return Loss vs. Frequency Output Return Loss vs. Frequency 0 0 -5 -5 RETURN LOSS (dB) RETURN LOSS (dB) 3 300 HIGH SPEED LOGIC - SMT 300 -10 -15 -20 -25 Divide-by-2 Divide-by-4 -10 -15 -20 -25 -30 -30 0 4 8 12 FREQUENCY (GHz) 16 20 0 2 4 6 8 10 12 14 FREQUENCY (GHz) [1] Input Frequency = 10 GHz For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] 3-4 HMC791LC4B v02.1209 28 GHz CLOCK DIVIDE-BY-2 / DIVIDE-BY-4 Output Signal Measurements /2 Current HIGH SPEED LOGIC - SMT 3 Minimum Maximum Total Count Rise Time (/2) 12.00 ps 12.00 ps 12.67 ps Fall Time (/2) 12.67 ps 12.67 ps 13.33 ps 51 Rise Time (/4) 16.67 ps 16.00 ps 16.67 ps 51 Fall Time (/4) 16.67 ps 16.67 ps 16.67 ps 51 /4 Vertical Scale (/2) 65 mV/div Vertical Scale (/4) 80 mV/div Horizontal Scale 30.0.ps/div 50 [1] Test Conditions: CK/2 and CK/4 outputs are presented on an Infinium 86100C Input Clock Frequency = 28 GHz Vin = -6 dBm Timing Diagram Truth Table Inputs Outputs (Q k-1) Outputs (Q k) CK CK/2 CK/4 CK/2 CK/4 LàH H H L H LàH L H H H LàH H L L L LàH L L H L HàL H H H L HàL L H L L HàL H L H H HàL L L L H Notes: CK = CKP- CKN CK/2 = CKP/2 – CKN/2 CK/4 = CKP/4 – CKN/4 H denotes high voltage level L denotes low voltage level L à H denotes rising edge H à L denotes falling edge 3-5 For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] HMC791LC4B v02.1209 28 GHz CLOCK DIVIDE-BY-2 / DIVIDE-BY-4 Absolute Maximum Ratings -3.7V to +0.5V Input Voltage (Single Ended) -1.5V to +0.5V Channel Temperature 125°C Continuous Pdiss (T = 85°C) (derate 26.4 mW/°C above 85°C) 1.06 W Thermal Resistance (channel to ground paddle) 37.88 C/W Storage Temperature -65°C to +125°C Operating Temperature -5°C to +85°C ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS 3 HIGH SPEED LOGIC - SMT Power Supply Voltage (Vee) Outline Drawing Notes: 1. PACKAGE BODY MATERIAL: ALUMINA 2. LEAD AND GROUND PADDLE PLATING: 30 - 80 MICROINCHES GOLD OVER 50 MICROINCHES MINIMUM NICKLE 3. DIMENSIONS ARE IN INCHES [MILLIMETERS] 4. LEAD SPACING TOLERANCE IS NON-CUMULATIVE 5. PACKAGE WARP SHALL NOT EXCEED 0.05mm DATUM 6. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO PCB RF GROUND 7. CLASSIFIED AS A MOISTURE SENSITIVITY LEVEL (MSL) 1. For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] 3-6 HMC791LC4B v02.1209 28 GHz CLOCK DIVIDE-BY-2 / DIVIDE-BY-4 Pin Descriptions Pin Number HIGH SPEED LOGIC - SMT 3 3-7 Function Description 1, 6, 7, 12, 13, 18, 19 N/C The pins are not connected internally; however, all data shown herein was measured with these pins connected to RF/DC ground externally. 2, 5, 8, 11, 14, 17, 21, 24 GND Signal and Supply Ground 3, 4 CKN, CKP Differential (CKP-CKN) or single ended (CKP) clock inputs 9, 10 CKN/2, CKP/2 Differential divide-by-2 outputs 15, 16 CKN/4, CKP/4 Differential divide-by-4 outputs 20, 22, 23 Vee3, Vee2, Vee1 Power Supply (-3.3V) Interface Schematic For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] HMC791LC4B v02.1209 28 GHz CLOCK DIVIDE-BY-2 / DIVIDE-BY-4 Evaluation PCB HIGH SPEED LOGIC - SMT 3 List of Materials for Evaluation PCB 126499 [1] Item Description J1 - J6 K Connector J11 - J12 DC Pin C2 100 pF Capacitor, 0402 Pkg. C3 - C5 1 nF Capacitor, 0402 Pkg. C8 4.7 µF Capacitor, Tantalum U1 HMC791LC4B Divide-by-2, Divide-by-4 PCB [2] 127876 Evaluation Board [1] Reference this number when ordering complete evaluation PCB [2] Circuit Board Material: Rogers 4350 or Arlon 25FR The circuit board used in the application should use RF circuit design techniques. Signal lines should have 50 Ohm impedance while the package ground leads should be connected directly to the ground plane similar to that shown. The exposed packaged base should be connected to GND. A sufficient number of via holes should be used to connect the top and bottom ground planes. The evaluation circuit board shown is available from Hittite upon request. For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] 3-8 HMC791LC4B v02.1209 28 GHz CLOCK DIVIDE-BY-2 / DIVIDE-BY-4 Application Circuit - Recommended Differential Configuration HIGH SPEED LOGIC - SMT 3 3-9 For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] HMC791LC4B v02.1209 28 GHz CLOCK DIVIDE-BY-2 / DIVIDE-BY-4 Application Circuit - Recommended Single-Ended Configuration HIGH SPEED LOGIC - SMT 3 For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] 3 - 10