HMC708LP5 / 708LP5E v03.0409 0.5 dB LSB 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 1700 - 2200 MHz Typical Applications Features The HMC708LP5(E) is ideal for: -2.5 to +29 dB Gain Control in 0.5 dB Steps • Cellular Infrastructure Power-up State Selection • WiBro, WiMAX and LTE/ 4G High Output IP3: +37 dBm • Microwave Radio & VSAT Low Noise Figure: 1 dB • Test Equipment and Sensors TTL/CMOS Compatible Serial, Parallel, or Latched Parallel Control ±0.25 dB Typical Step Error Single +3V and +5V Supply 32 Lead 5x5mm SMT Package: 25mm2 Functional Diagram General Description Variable gain amplifiers - digital - SMT 12 12 - 1 The HMC708LP5(E) is a digitally controlled variable gain amplifier which operates from 1700 MHz and 2200 GHz, and can be programmed to provide between 2.5 dB attenuation and +29 dB of gain, in 0.5 dB steps. The HMC708LP5(E) delivers noise figure of 1 dB in its maximum gain state, with output IP3 of up to +37 dBm. The dual mode gain control interface accepts either three wire serial input or 6 bit parallel word. The HMC708LP5(E) also features a user selectable power up state and a serial output for cascading other Hittite serially controlled components. For 900 MHz applications please refer to the HMC707LP5(E) data sheet. Electrical Specifications, TA = +25° C Rbias = 270 Ohms for Vdd = +5V, Rbias = 10 kOhms for Vdd = +3V, Vdd = Vdd1 = Vdd2 = Vdd3 Min. Parameter Typ. Max. Min. Vdd = +3V Frequency Range 23 Max. Vdd = +5V 1.7 - 2.2 Gain (Maximum Gain State) Typ. 1.7 - 2.2 27 25 Units GHz 30 dB Gain Control Range 31.5 31.5 dB Input Return Loss 16.5 20.5 dB Output Return Loss 10.5 13.5 dB ±(0.3 + 8%) of Attenuation Setting ±(0.2 + 5%) of Attenuation Setting dB Attenuation Accuracy: (Referenced to Maximum Gain State) Output Power for 1 dB Compression 13 Output Third Order Intercept Point (Two-Tone Input Power= -10 dBm Each Tone) Noise Figure Switching Characteristics tRISE, tFALL (50% CTL to 90% RF) tRISE tFALL 16 18 21.5 dBm 32.5 37.5 dBm 1.1 1 dB - 140 270 ns ns Current Amplifier 1 30 47 65 80 97 135 mA Current Amplifier 2 130 155 190 130 155 190 mA [1] Two-tone output power @ -10 dBm [2] Two-tone output power @ -5 dBm 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] HMC708LP5 / 708LP5E v03.0409 0.5 dB LSB 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 1700 - 2200 MHz Normalized Attenuation Maximum Gain vs. Frequency [1] (Only Major States are Shown) 40 +25C +85C -40C GAIN (dB) 36 32 28 24 20 1.5 Vdd=3V 1.7 1.9 2.1 FREQUENCY (GHz) 2.3 -5 -10 -15 -20 Vdd=3V Vdd=5V -25 -30 -35 1.5 2.5 1.6 1.7 1.8 1.9 2 2.1 2.2 FREQUENCY (GHz) Input Return Loss Output Return Loss (Only Major States are Shown) (Only Major States are Shown) Vdd=3V Vdd=5V -10 -20 -30 -40 1.5 2.4 2.5 12 0 RETURN LOSS (dB) RETURN LOSS (dB) 0 2.3 1.7 1.9 2.1 FREQUENCY (GHz) 2.3 Vdd=3V Vdd=5V -5 -10 -15 -20 1.5 2.5 1.7 1.9 2.1 FREQUENCY (GHz) 2.3 2.5 Output IP3 vs. Attenuation @ 1900 MHz Output IP3 vs. Tone Power [1] 48 40 Pout=-15dBm Pout=-10dBm Pout= -5dBm Pout= 0dBm 44 Power Out = -10dBm Vdd=5V 30 IP3 (dBm) IP3 (dBm) 40 36 20 32 Vdd=3V Vdd=5V 10 28 Vdd=3V 24 1.7 1.8 1.9 2 FREQUENCY (GHz) 2.1 2.2 0 0 4 8 12 16 20 24 ATTENUATION STATE (dB) 28 32 variable gain amplifiers - digital - SMT NORMALIZED ATTENUATION (dB) 0 Vdd=5V [1] Maximum gain state with digital attenuator set to minimum attenuation 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] 12 - 2 HMC708LP5 / 708LP5E v03.0409 0.5 dB LSB 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 1700 - 2200 MHz Bit Error vs. Frequency @ +3V Bit Error vs. Frequency @ +5V (Only Major States are Shown) (Only Major States are Shown) 3 3 2 BIT ERROR (dB) BIT ERROR (dB) 2 1 0 -1 -1 Vdd = 5V -2 -3 1.5 1.7 1.9 12 2.1 2.3 -3 1.5 2.5 1.7 1.9 Bit Error vs. Attenuation State @ +3V 2.3 2.5 Bit Error vs. Attenuation State @ +5V 2.5 2.5 Vdd=3V (1.7, 1.8, 1.9, 2.0, 2.1, 2.2) GHz 2 BIT ERROR (dB) 2 1.5 1 0.5 0 -0.5 2.1 FREQUENCY (GHz) FREQUENCY (GHz) Vdd=5V (1.7, 1.8, 1.9, 2.0, 2.1, 2.2) GHz 1.5 1 0.5 0 0 4 8 12 16 20 24 ATTENUATION STATE (dB) 28 32 -0.5 0 4 8 12 16 20 24 ATTENUATION STATE (dB) 28 32 Normal Relative Phase vs. Frequency (Only Major States are Shown) 30 RELATIVE PHASE (deg) BIT ERROR (dB) Variable gain amplifiers - digital - SMT 0 Vdd = 3V -2 12 - 3 1 20 10 0 -10 Vdd=3V Vdd=5V -20 -30 1.5 1.7 1.9 2.1 FREQUENCY (GHz) 2.3 2.5 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] HMC708LP5 / 708LP5E v03.0409 0.5 dB LSB 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 1700 - 2200 MHz Step Error vs. Frequency @ +5V Step Error vs. Frequency @ +3V (Only Major States are Shown) (Only Major States are Shown) 2 2 Vdd = 5V 0 -1 -2 1.5 1.7 1.9 2.1 FREQUENCY (GHz) 2.3 0 -1 -2 1.5 2.5 Noise Figure vs. Frequency 1.7 1.9 2.1 FREQUENCY (GHz) 2.3 2.5 12 Noise Figure vs. Attenuation @ 1900 MHz 2 20 Vdd=3V Vdd=5V Vdd=3V Vdd=5V 16 NOISE FIGURE (dB) 1.6 NOISE FIGURE (dB) 1 1.2 0.8 0.4 12 8 4 0 1.5 1.7 1.9 2.1 FREQUENCY (GHz) 2.3 0 2.5 Output IP3 & Supply Current vs. Supply Voltage @ 1900 MHz 0 4 8 12 16 20 24 ATTENUATION (dBm) 28 32 Output IP3 & Supply Current vs. Rbias @ 1900 MHz 300 45 500 40 250 35 400 36 200 32 150 15 100 5 44 IP3 (dBm) Vdd=3V Vdd=5V 25 300 200 IP3 @1.9GHz 28 2.7 3.1 3.5 3.9 4.3 4.7 VOLTAGE SUPPLY (V) 5.1 5.5 100 1 10 100 Rbias (Ohms) 1000 10000 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] DC CURRENT (mA) Idd (mA) IP3 (dBm) Idd variable gain amplifiers - digital - SMT STEP ERROR (dB) STEP ERROR (dB) Vdd = 3V 1 12 - 4 HMC708LP5 / 708LP5E v03.0409 0.5 dB LSB 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 1700 - 2200 MHz Option 1 [1] : Amp1 + 6-Bit DAT only Gain & Return Loss [1] [2] Noise Figure vs. Frequency [1] [2] 2 30 S21 10 Vdd=3V Vdd=5V 0 -10 S11 S22 1.6 1.7 1.8 1.9 2 2.1 2.2 FREQUENCY (GHz) 0.8 2.3 2.4 2.5 0 1.5 1.7 1.9 2.1 FREQUENCY (GHz) 2.3 2.5 Output IP3 vs. Attenuation @ 1900 MHz [1] 30 Power Out = -20dBm 20 IP3 (dBm) Variable gain amplifiers - digital - SMT 12 1.2 0.4 -20 -30 1.5 Vdd=3V Vdd=5V 1.6 NOISE FIGURE (dB) RESPONSE (dB) 20 10 Vdd=3V Vdd=5V 0 -10 -20 0 4 8 12 16 20 24 ATTENUATION STATE (dB) 28 32 [1] See Application Circuit [2] Maximum gain state with digital attenuator set to minimum attenuation 12 - 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] HMC708LP5 / 708LP5E v03.0409 0.5 dB LSB 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 1700 - 2200 MHz Option 2 [1] : 6-Bit DAT + Amp2 only Gain & Return Loss [1] [2] Output IP3 vs. Attenuation @ 1900 MHz [1] 44 20 Pout=0dBm 15 40 S21 Setup limit 36 5 IP3 (dBm) Vdd=3V Vdd=5V 0 S11 -5 32 Pout=-5dBm 28 Vdd=3V Vdd=5V -10 24 -15 -20 1.5 S22 1.6 1.7 20 1.8 1.9 2 2.1 2.2 FREQUENCY (GHz) 2.3 2.4 2.5 0 4 8 12 16 20 24 ATTENUATION STATE (dB) 28 32 Serial Control Interface The HMC708LP5(E) contains a 3-wire SPI compatible digital interface (SERIN, CLK, LE). It is activated when P/S is kept high. The 6-bit serial word must be loaded MSB first. The positive-edge sensitive CLK and LE requires clean transitions. Standard logic families work well. If mechanical switches were used, sufficient debouncing should be provided. When LE is high, 6-bit data in the serial input register is transferred to the attenuator. When LE is high CLK is masked to prevent data transition during output loading. When P/S is low, 3-wire SPI interface inputs (SERIN, CLK, LE) are disabled and serial input register is loaded asynchronously with parallel digital inputs (D0-D5). When LE is high, 6-bit parallel data is transferred to the attenuator. For all modes of operations, attenuation state will stay constant while LE is kept low. [1] See Application Circuit [2] Maximum gain state with digital attenuator set to minimum attenuation 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] 12 variable gain amplifiers - digital - SMT RESPONSE (dB) 10 12 - 6 HMC708LP5 / 708LP5E v03.0409 0.5 dB LSB 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 1700 - 2200 MHz Timing Diagram (Latched Parallel Mode) Variable gain amplifiers - digital - SMT 12 12 - 7 Parameter Typ. Min. serial period, tSCK 100 ns Control set-up time, tCS 20 ns Control hold-time, tCH 20 ns LE setup-time, tLN 10 ns Min. LE pulse width, tLEW 10 ns Min LE pulse spacing, tLES 630 ns Serial clock hold-time from LE, tCKN 10 ns Hold Time, tPH. 0 ns Latch Enable Minimum Width, tLEN 10 ns Setup Time, tPS 2 ns Parallel Mode (Direct Parallel Mode & Latched Parallel Mode) Note: The parallel mode is enabled when P/S is set to low. Direct Parallel Mode - The attenuation state is changed by the Control Voltage Inputs directly. The LE (Latch Enable) must be at a logic high to control the attenuator in this manner. Latched Parallel Mode - The attenuation state is selected using the Control Voltage Inputs and set while the LE is in the Low state. The attenuator will not change state while LE is Low. Once all Control Voltage Inputs are at the desired states the LE is pulsed. See timing diagram above for reference. Power-Up States PUP Truth Table If LE is set to logic LOW at power-up, the logic state of PUP1 and PUP2 determines the power-up state of the part per PUP truth table. If the LE is set to logic HIGH at power-up, the logic state of D0-D5 determines the power-up state of the part per truth table. The DVGA latches in the desired power-up state approximately 200 ms after power-up. Power-On Sequence The ideal power-up sequence is: GND, Vdd, digital inputs, RF inputs. The relative order of the digital inputs are not important as long as they are powered after Vdd / GND PUP1 PUP2 Gain Relative to Maximum Gain 0 0 0 -31.5 0 1 0 -24 0 0 1 -16 0 1 1 Insertion Loss 1 X X 0 to -31.5 dB LE Note: The logic state of D0 - D5 determines the power-up state per truth table shown below when LE is high at power-up. Truth Table Control Voltage Input D5 Control Voltage Table D4 D3 D2 D1 D0 Gain Relative to Maximum Gain High High High High High High 0 dB State Vdd = +3V Vdd = +5V High High High High High Low -0.5 dB Low 0 to 0.5V @ <1 µA 0 to 0.8V @ <1 µA High High High High Low High -1 dB High 2 to 3V @ <1 µA 2 to 5V @ <1 µA High High High Low High High -2 dB -4 dB High High Low High High High High Low High High High High -8 dB Low High High High High High -16 dB Low Low Low Low Low Low -31.5 dB Any combination of the above states will provide a reduction in gain approximately equal to the sum of the bits selected. 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] HMC708LP5 / 708LP5E v03.0409 0.5 dB LSB 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 1700 - 2200 MHz Typical Supply Current vs. Vdd (Rbias = Absolute Maximum Ratings Vdd (V) Total Idd (mA) 2.7 191 3.0 3.3 Drain Bias Voltage (Vdd) 5.5 V 206 RF Input Power (RFIN) (Vdd = +5 Vdc) -5 dBm + Attenuation State (do not exceed +10 dBm) 220 Channel Temperature 150 °C 4.5 230 -0.5 to Vdd +0.5V 5.0 252 Digital Inputs (Reset, Shift Clock, Latch Enable, Serial Input) 5.5 271 Continuous Pdiss (T= 85 °C) (derate 28 mW/°C above 85 °C) 1.8 W Thermal Resistance (channel to ground paddle) 36.2 °C/W Storage Temperature -65 to +150 °C Operating Temperature -40 to +85 °C Note: Amplifier will operate over full voltage ranges shown above. ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS Absolute Bias Resistor Range & Recommended Bias Resistor Values for Idd Vdd 3V 5V Rbias Ω Min. Max. 1K [1] Open Circuit 0 Open Circuit Recommended Total Idd (mA) 2.2k 195 4.7k 201 10k 206 0 231 120 243 270 252 [1] Operation with Vdd= 3V and Rbias < 1K Ohm may result in the part becoming conditionally stable which is not recommended. 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] 12 variable gain amplifiers - digital - SMT 270Ω for Vdd= 5V, Rbias= 10kΩ for Vdd= 3V) 12 - 8 HMC708LP5 / 708LP5E v03.0409 0.5 dB LSB 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 1700 - 2200 MHz Outline Drawing Variable gain amplifiers - digital - SMT 12 12 - 9 NOTES: 1. LEADFRAME MATERIAL: COPPER ALLOY 2. DIMENSIONS ARE IN INCHES [MILLIMETERS] 3. LEAD SPACING TOLERANCE IS NON-CUMULATIVE. 4. PAD BURR LENGTH SHALL BE 0.15mm MAXIMUM. PAD BURR HEIGHT SHALL BE 0.05mm MAXIMUM. 5. PACKAGE WARP SHALL NOT EXCEED 0.05mm. 6. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO PCB RF GROUND. 7. REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED LAND PATTERN. Package Information Part Number Package Body Material Lead Finish MSL Rating HMC708LP5 Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 [1] HMC708LP5E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 [2] Package Marking [3] H708 XXXX H708 XXXX [1] Max peak reflow temperature of 235 °C [2] Max peak reflow temperature of 260 °C [3] 4-Digit lot number XXXX Pin Descriptions Pin Number Function Description 1 RFIN RF input to the first amplifier (AMP1) This pin is DC coupled and matched to 50 Ohms. 2, 3, 21, 30 N/C No connection necessary. These pins may be connected to RF/DC ground without affecting performance. 4 RES This pin is used to set the DC current of the first amplifier by selection of external bias resistor. See application circuit. 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] HMC708LP5 / 708LP5E v03.0409 0.5 dB LSB 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 1700 - 2200 MHz Pin Descriptions (Continued) Function Description 5 SEROUT Serial input data delayed by 6 clock cycles. 6, 7 PUP1, PUP2 9 - 14 D0 - D5 8 Vdd1 15 P/S 16 CLK 17 SERIN Interface Schematic See truth table, control voltage table and timing diagram. Supply voltage See truth table, control voltage table and timing diagram. 18 LE 19, 23, 25, 26, 28 GND These pins and package bottom must be connected to RF/DC ground. 20 RFOUT RF Output and DC BIAS for the second amplifier (AMP2). See Application Circuit for off-chip components. 22 RFIN3 RF input for the second amplifier (AMP2). This pin is DC coupled. An off-chip DC blocking capacitor is required. 27 RFIN2 24 RFOUT2 29 RFOUT1 RF output for the first amplifier (AMP1) This pin is matched to 50 Ohms. 31, 32 Vdd2, Vdd3 Power Supply Voltage for the first amplifier. External bypass capacitors are required. See application circuit. Input and output of the 6-bit digital attenuator (6-Bit DAT). These pins are DC coupled and matched to 50 Ohms. Blocking capacitors are required. Select value based on lowest frequency of 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] 12 variable gain amplifiers - digital - SMT Pin Number 12 - 10 HMC708LP5 / 708LP5E v03.0409 0.5 dB LSB 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 1700 - 2200 MHz Evaluation PCB Variable gain amplifiers - digital - SMT 12 12 - 11 List of Materials for Evaluation PCB 120493 [1] Item Description Item Description J1 - J4 PCB Mount SMA Connector R12, R13 0 Ohm Resistor, 0402 Pkg. J5 2mm Vertical Molex 28pos Connector U1 HMC708LP5(E) Variable Gain Amplifier C1, C8, C10, C12, C18 220 pF Capacitor, 0402 Pkg. PCB [2] 120491 Evaluation PCB C3 10 nF Capacitor, 0402 Pkg. [1] Reference this number when ordering complete evaluation PCB C6, C13, C15 1000 pF Capacitor, 0603 Pkg. [2] Circuit Board Material: Arlon 25FR or Roger 4350 C7, C14 10 nF Capacitor, 0603 Pkg. C16 27 pF Capacitor, 0603 Pkg. 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 and exposed paddle should be connected directly to the ground plane similar to that shown. 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. C17 4.7 uF Capacitor, 0805 Pkg. L2 15 nH Inductor, 0402 Pkg. L3 6.8 nH Inductor, 0603 Pkg. L4 47 nH Inductor, 0603 Pkg. L5 5.1 nH Inductor, 0402 R1 (Rbias) 270 Ohm Resistor, 0402 Pkg. R2 - R10 39K Ohm Resistor, 0402 Pkg. 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] HMC708LP5 / 708LP5E v03.0409 0.5 dB LSB 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 1700 - 2200 MHz Application Circuit Note 1: For option 1 (Amp1 + 6-bit DAT only) remove L4. Move 220pF capacitor (0402 Pkg.) from location C10 to C11. Note 2: For option 2 (6-Bit DAT + Amp2 only) remove R13, L2, L3 and L5. Move 220pF capacitor (0402 Pkg.) from location C8 to C9. 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] variable gain amplifiers - digital - SMT 12 12 - 12