HMC856LC5 v01.0611 BROADBAND TIME DELAY - SMT 3 28 Gbps 5-BIT DIGITAL TIME DELAY WITH PROGRAMMABLE OUTPUT VOLTAGE Typical Applications Features The HMC856LC5 is ideal for: Differential & Single-Ended Operation • SONET OC-192 Supports Data Rates up to 28 Gbps • High Speed Serial Logic Fast Rise and Fall Times: 20 / 18 ps • Clock & Data Recovery Low Power Consumption: 610 mW typ. • Broadband Test & Measurement Equipment • Frequency Synthesis Programmable Differential Output Voltage Swing: 500 - 1350 mVp-p • Matched Timing Single Supply: -3.3V 32 Lead Ceramic 5x5 mm SMT Package: 25 mm2 Functional Diagram General Description The HMC856LC5 is a wideband time delay with a 5-bit digital control designed for timing compensation or clock skew management applications. The time delay provides nearly 100 ps of delay range with 3 ps resolution and supports 28 Gbps data. The monotonic delay is compensated for stable operation over both power supply and temperature variation. All differential inputs to the HMC856LC5 are CML and terminated on-chip with 50 Ohms to the positive supply, GND, and may be AC or DC coupled. The differential CML 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 control lines B4:B0 ae differential CML inputs terminated with 600 Ohms to the positive rail, which supports lower power control options. The HMC856LC5 features an output level control pin, VR, which allows for loss compenstion or signal level optimization. The HMC856LC5 operates from a single -3.3 V supply and is available in ROHScompliant 5x5 mm SMT package. Electrical Specifications, TA = +25 °C, Vee = -3.3 V, VR = 0 V Parameter Conditions Power Supply Voltage Min. Typ. Max -3.7 -3.3 -2.9 Power Supply Current 185 Maximum Data Rate V mA 28 Gbps Input Voltage Range, CML -1.5 0.5 V Input Differential Voltage 0.1 2.0 V Output Rise / Fall Time Random Jitter Jr Deterministic Jitter, Jd Input Return Loss 3-1 Units Differential, 20% - 80% 20 / 18 ps rms 0.2 ps rms peak-to-peak, 215 -1 PRBS input [1] <2 ps, p-p Frequency <12 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] HMC856LC5 v01.0611 28 Gbps 5-BIT DIGITAL TIME DELAY WITH PROGRAMMABLE OUTPUT VOLTAGE Electrical Specifications (continued) Conditions Output Amplitude Min. Typ. Max Units Single-Ended, peak-to-peak 565 mVp-p Differential, peak-to-peak 1130 mVp-p Output High Voltage -20 mV Output Low Voltage -585 mV Output Return Loss Frequency <12 GHz 10 dB VR Pin Current VR = 0.0 V 3.0 mA VR Pin Current VR = 0.4 V 4.25 Propagation Delay Data to Data, Tprop 255 Delay Control Range 92 mA ps ps Delay Temperature Variation Ta = 85 °C 9 12 ps Delay Temperature Variation Ta = -40 °C 4 8 ps Delay Resolution 3 Output Differential Voltage vs. Supply Voltage [1][2] DC Current vs. Supply Voltage [1][2] 1500 DC CURRENT (mA) 260 DIFFERENTIAL VOLTAGE (mV) 280 +25C +85C -40C 240 220 200 180 160 140 120 -3.7 1400 +25C +85C -40C 1300 1200 1100 1000 900 800 700 -3.6 -3.5 -3.4 -3.3 -3.2 -3.1 -3 -3.7 -2.9 -3.6 -3.5 DC Current vs. VR [2][3] -3.3 -3.2 -3.1 -3 -2.9 Output Differential Voltage vs. VR [2][3] 1500 280 260 DIFFERENTIAL VOLTAGE (mV) +25C +85C -40C 240 DC CURRENT (mA) -3.4 SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) 220 200 180 160 140 120 100 80 -1.2 ps 3 BROADBAND TIME DELAY - SMT Parameter 1400 1300 +25C +85C -40C 1200 1100 1000 900 800 700 600 500 -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 [1] VR = 0.0 V [2] Frequency = 28 Gbps -1.2 -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 VR (V) VR (V) [3] Vee = -3.3 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] 3-2 HMC856LC5 v01.0611 28 Gbps 5-BIT DIGITAL TIME DELAY WITH PROGRAMMABLE OUTPUT VOLTAGE Rise / Fall Time vs. Supply Voltage [1][2] Rise / Fall Time vs. VR [2][4] 24 tr tf 20 18 16 22 20 18 14 -3.7 -3.6 -3.5 -3.4 -3.3 -3.2 -3.1 -3 16 -1.2 -2.9 -1 -0.8 -0.6 SUPPLY VOLTAGE (V) Input Return Loss vs. Frequency [1][3][4] -0.2 0 0.2 0.4 Output Return Loss vs. Frequency [1][3][4] 10 5 0 0 -5 RETURN LOSS (dB) 5 -5 -10 -15 -20 -25 -10 -15 -20 -25 -30 -30 -35 0 5 10 15 20 25 0 5 10 FERQUENCY (GHz) 100 98 98 96 96 94 94 92 90 +25C +85C -40C 86 90 88 86 84 82 82 -3.6 -3.5 -3.4 -3.3 -3.2 -3.1 SUPPLY VOLTAGE (V) [1] VR = 0.0 V 25 92 84 80 -3.7 20 Delay vs. VR [2][4] 100 88 15 FREQUENCY (GHz) DELAY (ps) DELAY (ps) -0.4 VR (V) Delay vs. Supply Voltage [1][2] 3-3 tr tf 24 RISE/FALL TIME (ps) RISE/FALL TIME (ps) 22 RETURN LOSS (dB) BROADBAND TIME DELAY - SMT 3 26 [2] Frequency = 28 Gbps -3 -2.9 80 -1.2 +25C +85C -40C -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 VR (V) [3] Device measured on evaluation board with port extensions [4] Vee = -3.3 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] HMC856LC5 28 Gbps 5-BIT DIGITAL TIME DELAY WITH PROGRAMMABLE OUTPUT VOLTAGE Normalized Delay vs. Setting [1][3][4][5] 100 100 90 90 80 80 70 70 +25C +85C -40C 60 DELAY (ps) DELAY (ps) Delay vs. Setting Over Temperature [1][3][4] 50 40 40 30 20 20 10 10 0 4 8 12 16 20 24 28 0 -40 32 -15 10 SETTING (bits) 40 350 35 85 -30 dBm -25 dBm -20 dBm -10 dBm 0 dBm 30 +25C +85C -40C AMPLITUDE (dB) DELAY (ps) 60 Amplitude vs. Input Power [1][3][4] 360 330 35 TEMPERATURE (C) Absolute Delay vs. Setting [1][2][4][5] 340 3 4 2 1 50 30 0 31 16 8 60 320 310 300 290 280 25 20 15 10 5 270 0 260 -5 -10 250 0 4 8 12 16 20 24 28 32 0 5 10 15 20 FREQUENCY (GHz) SETTING (bits) BROADBAND TIME DELAY - SMT v01.0611 Eye Diagram @ 28 Gbps Test Conditions: Differential 400 mV data input generated with a 215 1 PN 28 Gbps PRBS pattern, resulting in a 28 Gbps output measured using a Tektronix CSA 8000 [1] VR = 0 V [2] Frequency = 28 Gbps [3] Device measured on evaluation board with port extensions [4] Vee = -3.3 V [5] Normalized to 0 setting at its respective temperature 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 HMC856LC5 v01.0611 28 Gbps 5-BIT DIGITAL TIME DELAY WITH PROGRAMMABLE OUTPUT VOLTAGE Timing Diagram BROADBAND TIME DELAY - SMT 3 Absolute Maximum Ratings Power Supply Voltage (Vee) -3.75 V to +0.5 V Input Signals -2 V to +0.5 V Output Signals -1.5 V to 0.5 V Maximum Junction Temperature 125 °C Continuous Pdiss (T = 85 °C) (derate 33 mW/°C above 85 °C) 1.33 W Thermal Resistance (Rth j-p) Worst-case device to package paddle 30 °C/W Storage Temperature -65 °C to +150 °C Operating Temperature -40 °C to +85 °C ESD Sensitivity (HBM) Class 1C 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 0.05 mm 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] HMC856LC5 v01.0611 28 Gbps 5-BIT DIGITAL TIME DELAY WITH PROGRAMMABLE OUTPUT VOLTAGE Pin Descriptions Function Description 1, 4, 5, 11, 14, 20, 21, 24 GND Signal Grounds 2, 3 I+, I- Differential Inputs: Current Mode Logic (CML) referenced to positive supply. 6, 7, 9, 10, 12, 13, 15, 16, 18, 19 B0+, B0-, B1+, B1-, B2+, B2-, B3+, B3-, B4-, B4+ Differential Inputs: Current Mode Logic (CML) referenced to positive supply. 8, 17, 25, 32 N/C No connection necessary. These pins may be connected to RF/DC ground without affecting performance. 22, 23 O-, O+ Differential Outputs: Current Mode Logic (CML) referenced to positive supply, 600 Ohm termination. 26, 31 GND Supply Ground 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. 29 VB VB Tie to ground. 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 BROADBAND TIME DELAY - SMT Pin Number 3-6 HMC856LC5 v01.0611 28 Gbps 5-BIT DIGITAL TIME DELAY WITH PROGRAMMABLE OUTPUT VOLTAGE Evaluation PCB BROADBAND TIME DELAY - SMT 3 List of Materials for Evaluation PCB 127102 [1] Item Description J1, J2 PCB Mount SMA RF Connectors J3, J4 PCN Mount K RF Connectors J5 0.1” 2 x 5 Header J7 - J14 0.04” DC Pin JP1 0.1” 2 Position Header with Shunt C1, C2 4.7 µF Capacitor, Case A. C3 - C5 100 pF Capacitor, 0402 Pkg. R1, R8 10 Ohm Resistor, 0603 Pkg. R2 1.2 kOhm Resistor, 0603 Pkg. R3 - R7 2.7 kOhm Resistor, 0603 Pkg. U1 HMC856LC5 28 Gbps Digital Time Delay PCB [2] 127100 Evaluation Board 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. [1] Reference this number when ordering complete evaluation PCB [2] Circuit Board Material: Arlon 25FR or Rogers 4350 3-7 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] HMC856LC5 v01.0611 28 Gbps 5-BIT DIGITAL TIME DELAY WITH PROGRAMMABLE OUTPUT VOLTAGE Application Circuit BROADBAND TIME DELAY - 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