HMC855LC5 v00.0610 MUX & DEMUX - SMT 3 28 Gbps, 1:4 DEMUX WITH PROGRAMMABLE OUTPUT VOLTAGE Typical Applications Features The HMC855LC5 is ideal for: Differential & Singe-Ended Operation • SONET OC-192 Half Rate Clock Input • Broadband Test & Measurement Quarter Rate Reference Clock Output • Serial Data Transmission up to 28 Gbps Fast Rise and Fall Times: 22 ps • FPGA Interfacing Low Power Consumption: 644 mW typ. Programmable Differential Output Voltage Swing: 450 - 1144 mV Single Supply: -3.3V 32 Lead Ceramic 5x5 mm SMT Package: 25 mm2 Functional Diagram General Description The HMC855LC5 is a 1:4 demultiplexer designed for data deserialization up to 28 Gbps. The device uses both rising and falling edges of the half-rate clock to sample the input data in sequence, D0-D3 and latches the data onto the differential outputs. A quarter-rate clock output generated on chip can be used to clock the data into other devices. The demux is DC coupled supporting broadband operation. All clock and data inputs to the HMC855LC5 are CML and terminated on-chip with 50 Ohms to the positive supply, GND, and may be DC or AC coupled. The differential outputs are source terminated to 50 Ohms and may also be AC or DC coupled. Outputs can be connected directly to a 50 Ohm ground terminated system, or drive devices with CML logic input. The HMC855LC5 also features an output level control pin, VR, which allows for loss compensation or signal level optimization. The HMC855LC5 operates from a single -3.3V supply and is available in RoHS compliant 5x5 mm SMT package. Electrical Specifications, TA = +25°C, Vee = -3.3V, VR = 0V Parameter Conditions Power Supply Voltage Typ. Max -3.6 -3.3 -3.0 Units V Power Supply Current 195 mA Maximum Data Rate 28 Gbps Maximum Clock Rate, Half Rate 14 GHz Input Voltage Range, CML -1.5 0.5 V Input Differential Voltage 100 2000 mV Output Rise / Fall Time Input Return Loss 3-1 Min. Differential, 20% - 80% 22 ps Frequency <28 GHz 10 dB 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] HMC855LC5 v00.0610 28 Gbps, 1:4 DEMUX WITH PROGRAMMABLE OUTPUT VOLTAGE Electrical Specifications, (continued) Conditions Output Amplitude Min. Typ. Max Units Single-Ended, peak-to-peak 500 mVp-p Differential, peak-to-peak 1000 mVp-p Output High Voltage 0 mV Output Low Voltage -500 mV Output Return Loss 10 dB Propagation Delay Clock to Data, Tpdd Frequency <22 GHz 149 ps Propagation Delay Clock to Output Clock, Tpdc 142 ps Set Up Time, ts 16 ps Hold Time, th 3 ps DC Current vs. Supply Voltage Output Differential vs. Supply Voltage [1] [2] [1] [2] 1300 240 DIFFERENTIAL VOLTAGE (mV) DC CURRENT (mA) 230 220 210 200 190 180 +25C +85C -40C 170 160 150 -3.7 -3.6 -3.5 -3.4 -3.3 -3.2 -3.1 -3 1200 1000 900 800 700 600 -3.7 -2.9 +25C +85C -40C 1100 -3.6 -3.5 Output Differential vs. VR [2][3] -3.2 -3.1 -3 -2.9 0 0.2 0.4 230 1200 220 +25C +85C -40C 1100 1000 210 DC CURRENT (mA) DIFFERENTIAL VOLTAGE (mV) -3.3 DC Current vs. VR [2][3] 1300 900 800 700 600 190 180 170 160 150 400 140 300 +25C +85C -40C 200 500 130 -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 VR (V) [1] VR = 0.0V -3.4 SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) -1.2 3 MUX & DEMUX - SMT Parameter [2] Frequency = 28 Gbps -1.2 -1 -0.8 -0.6 -0.4 -0.2 VR (V) [3] Vee = -3.3V 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 HMC855LC5 v00.0610 28 Gbps, 1:4 DEMUX WITH PROGRAMMABLE OUTPUT VOLTAGE Rise / Fall Time vs. VR [2][4] 26 24 24 RISE/FALL TIME (ps) 26 22 20 tr tf 18 16 -3.7 -3.6 -3.5 -3.4 -3.3 -3.2 22 20 tr tf 18 -3.1 -3 16 -1.2 -2.9 -1 -0.8 Data Input Return Loss vs. Frequency [1][3][4] -0.2 0 0.2 0.4 Data Output Return Loss vs. Frequency [1][3][4] -5 5 0 -15 -5 RETURN LOSS (dB) -10 -20 -25 -30 -35 -10 -15 -20 -25 -30 -45 -35 0 5 10 15 20 25 0 5 FREQUENCY (GHz) 10 15 20 25 FREQUENCY (GHz) Clock Input Return Loss vs. Frequency [1][3][4] Clock Output Return Loss vs. Frequency [1][3][4] 0 0 -5 -5 -10 -10 RETURN LOSS (dB) RETURN LOSS (dB) -0.4 VR (V) -40 -15 -20 -25 -30 -35 -15 -20 -25 -30 -35 -40 -40 0 5 10 15 FREQUENCY (GHz) [1] VR = 0.0V 3-3 -0.6 SUPPLY VOLTAGE (V) RETURN LOSS (dB) MUX & DEMUX - SMT 3 RISE/FALL TIME (ps) Rise / Fall Time vs. Supply Voltage [1][2] [2] Frequency = 28 Gbps 20 25 0 5 10 15 20 25 FREQUENCY (GHz) [3] Device measured on evaluation board with gating [4] Vee = -3.3V 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] HMC855LC5 v00.0610 28 Gbps, 1:4 DEMUX WITH PROGRAMMABLE OUTPUT VOLTAGE Eye Diagram @ 28 Gbps Test Conditions: Timing Diagram 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 MUX & DEMUX - SMT Differential 400 mV data input and 300 mV clock input. Pattern generated with a 215-1 PN 28 Gbps PRBS pattern. Resulting in a 7 Gbps output measured using a Tektronix CSA 8000 3-4 HMC855LC5 v00.0610 28 Gbps, 1:4 DEMUX WITH PROGRAMMABLE OUTPUT VOLTAGE Absolute Maximum Ratings MUX & DEMUX - SMT 3 Power Supply Voltage (Vee) -3.75V to +0.5V Input Signals -2V to +0.5V Output Signals -1.5V to +0.5V Junction Temperature 125 °C Continuous Pdiss (T = 85 °C) (derate 33 mW/°C above 85 °C ) 1.33 W Thermal Resistance (Rth j-p) Worse case device to package paddle 30 °C/W Storage Temperature -65°C to +150°C Operating Temperature -40°C to +85°C ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS Outline Drawing NOTES: 1. PACKAGE BODY MATERIAL: ALUMINA 2. LEAD AND GROUND PADDLE PLATING: 30-80 MICROINCHES GOLD OVER 50 MICROINCHES MINIMUM NICKEL. 3. DIMENSIONS ARE IN INCHES [MILLIMETERS]. 4. LEAD SPACING TOLERANCE IS NON-CUMULATIVE. 5. PACKAGE WARP SHALL NOT EXCEED 0.05mm DATUM -C6. ALL GROUND LEADS MUST BE SOLDERED TO PCB RF GROUND. 7. PADDLE MUST BE SOLDERED TO Vee. 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] HMC855LC5 v00.0610 28 Gbps, 1:4 DEMUX WITH PROGRAMMABLE OUTPUT VOLTAGE Pin Descriptions Function Description 1, 2, 25, 29, 32 N/C No connection necessary. These pins may be connected to RF/DC ground without affecting performance. 3, 6, 9, 12, 13, 16, 19, 22, 26, 31 GND These pins must be connected to a high quality RF/DC ground. 4, 5, 7, 8, 17, 18, 20, 21 D3-, D3+ D1-, D1+ D4-, D4+ D2-, D2+ Differential Data Outputs: Current Mode Logic(CML) referenced to positive supply 10, 11 D-, D+ Differential Data Inputs: Current Mode Logic (CML) referenced to positive supply 14, 15 C/2+, C/2- Differential Half-Rate Clock Inputs: Current Mode Logic (CML) referenced to positive supply 23, 24 C/4+, C/4- Differential Quarter-Rate Clock Outputs: Current Mode Logic(CML) referenced to positive supply 27, 30, Package Base Vee These pins and the exposed paddle must be connected to the negative voltage supply. 28 VR Output level control. Output level may be increased or decreased by applying a voltage to VR per “Output Differential vs. VR” plot. 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] 3 MUX & DEMUX - SMT Pin Number 3-6 HMC855LC5 v00.0610 28 Gbps, 1:4 DEMUX WITH PROGRAMMABLE OUTPUT VOLTAGE Evaluation PCB MUX & DEMUX - SMT 3 List of Materials for Evaluation PCB 126578 [1] Item Description J7 - J10 PCB Mount K RF Connectors J3 - J6, J11 - J16 PCB Mount SMA RF Connectors J18 -J21 DC Pin JP1 2 Position Header with Shunt C1, C2 4.7 µF Capacitor, Tantalum C3 - C5 100 pF Capacitor, 0402 Pkg. R1 10 Ohm Resistor, 0603 Pkg. U1 HMC855LC5 28 Gbps 1:4 Demux PCB [2] 126576 Evaluation Board [1] Reference this number when ordering complete evaluation PCB [2] Circuit Board Material: Arlon 25FR or Rogers 4350 3-7 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 metal package base must be connected to Vee. 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. Install jumper on JP1 to short VR to GND for normal operation. 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] HMC855LC5 v00.0610 28 Gbps, 1:4 DEMUX WITH PROGRAMMABLE OUTPUT VOLTAGE Application Circuit MUX & DEMUX - 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] 3-8