= +25 C, Vdd = Vs= P/S= +5V

Transcription

1 v3. HMC68LP5 / 68LP5E.5 db LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER w/ SERIAL CONTROL, DC - GHz Variable gain amplifiers - digital - SMT Typical Applications The HMC68LP5(E) is ideal for: IF & RF Applications Cellular/3G Infrastructure WiBro / WiMAX / 4G Microwave Radio & VSAT Test Equipment and Sensors Functional Diagram Electrical Specifications, T A = +25 C, Vdd = Vs= P/S= +5V +3.5 db to +45 db Gain Control in.5 db Steps High Output IP3: +36 dbm ±.25 db Typical Gain Step Error Single +5V Supply 32 Lead 5x5mm SMT Package: 25mm 2 The HMC68LP5(E) is a digitally controlled variable gain amplifier which operates from DC to GHz, and can be programmed to provide anywhere from 3.5 db, to 45 db of gain, in.5 db steps. The HMC68LP5(E) delivers noise figure of 2.8 db in its maximum gain state, with output IP3 of up to +36 dbm in any state. This serially controlled digital VGA incorporates off chip AC ground capacitors for near DC operation, making it suitable for a wide variety of RF and IF applications. The HMC68LP5(E) is housed in a RoHS compliant 5x5 mm QFN leadless package, and provides the user with a highly integrated solution. This functionality is also available with parallel control as the HMC626LP5(E). Min. Typ. Max. Min. Typ. Max. Units Parameter MHz Gain (Maximum Gain State) db Gain Control Range 3.5 Input Return Loss 25 3 db Output Return Loss 2 7 db Gain Setting Accuracy: (Referenced to Maximum Gain State) ± (.5 + 3% of Relative Gain Setting) Max. ± (.5 + 3% of Relative Gain Setting) Max. db All Gain States Output Power for db Compression 2 9 dbm Output Third Order Intercept Point (Two-Tone Output Power= 5 dbm Each Tone) dbm Noise Figure db Switching Characteristics trise, tfall (/9% RF) ton, toff (5% CTL to /9% RF) 6 Features General Description Total Supply Current ma 6 ns ns - For price, delivery and to place orders: Hittite Microwave Corporation, 2 Alpha Road, Chelmsford, MA 824 Phone: Fax: Order On-line at Application Support: Phone: or apps@hittite.com

2 v3..5 db LSB GaAs MMIC 6-BIT DIGITAL VARIABLE 5 to 35 MHz Tuning Gain vs. Frequency GAIN (db) C +85C -4C Relative Gain Setting (Referenced to Maximum Gain State) RELATIVE GAIN (db) db Input Return Loss RETURN LOSS (db) dB -35 2dB Bit Error vs. Frequency BIT ERROR (db) dB 6dB.5 3.5dB Output Return Loss RETURN LOSS (db) dB I.L Bit Error vs. Relative Gain Setting BIT ERROR (db) MHz.5 5, 2MHz RELATIVE GAIN SETITING (db) variable gain amplifiers - digital - SMT For price, delivery and to place orders: Hittite Microwave Corporation, 2 Alpha Road, Chelmsford, MA 824 Phone: Fax: Order On-line at Application Support: Phone: or apps@hittite.com - 2

3 v3..5 db LSB GaAs MMIC 6-BIT DIGITAL VARIABLE 5 to 35 MHz Tuning Relative Phase vs. Frequency 6 Step Error vs. Frequency RELATIVE PHASE (deg) 4 8 db STEP ERROR (db) db Variable gain amplifiers - digital - SMT Output PdB (Major States shown are IL through )) PdB (dbm) I.L Output 5 dbm Output Power per Tone (Major States shown are IL through ) IP3 (dbm) I.L For price, delivery and to place orders: Hittite Microwave Corporation, 2 Alpha Road, Chelmsford, MA 824 Phone: Fax: Order On-line at Application Support: Phone: or apps@hittite.com

4 v3..5 db LSB GaAs MMIC 6-BIT DIGITAL VARIABLE 35 to MHz Tuning Gain vs. Frequency 5 Relative Gain Setting (Referenced to Maximum Gain State) db GAIN (db) C +85 C -4 C RELATIVE GAIN (db) Input Return Loss RETURN LOSS (db) I.L Bit Error vs. Frequency BIT ERROR (db) db Output Return Loss RETURN LOSS (db) I.L Bit Error vs. Relative Gain Setting BIT ERROR (db) MHz.5 35 MHz RELATIVE GAIN SETTING (db) variable gain amplifiers - digital - SMT For price, delivery and to place orders: Hittite Microwave Corporation, 2 Alpha Road, Chelmsford, MA 824 Phone: Fax: Order On-line at Application Support: Phone: or apps@hittite.com - 4

5 v3..5 db LSB GaAs MMIC 6-BIT DIGITAL VARIABLE 35 to MHz Tuning Relative Phase vs. Frequency RELATIVE PHASE (deg) db db Step Error vs. Frequency STEP ERROR (db) , 8 db db Variable gain amplifiers - digital - SMT Output PdB (Major States shown are IL through ) PdB (dbm) Power-Up States If LE is set to logic LOW at power-up, the logic state of PUP and PUP2 determines the power-up state of the part per PUP truth table. The attenuator latches in the desired power-up state approximately 2 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 I.L. Output 5 dbm Output Power per Tone (Major States shown are IL through ) IP3 (dbm) I.L PUP Truth Table LE PUP PUP2 Relative Gain Setting Insertion Loss - 5 For price, delivery and to place orders: Hittite Microwave Corporation, 2 Alpha Road, Chelmsford, MA 824 Phone: Fax: Order On-line at Application Support: Phone: or apps@hittite.com

6 v3..5 db LSB GaAs MMIC 6-BIT DIGITAL VARIABLE Serial Control Interface The HMC68LP5(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. 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. For all modes of operations, gain will remain constant while LE is kept low. Parameter Min. serial period, t SCK Control set-up time, t CS Control hold-time, t CH LE setup-time, t LN Min. LE pulse width, t LEW Min LE pulse spacing, t LES Serial clock hold-time from LE, t CKN Hold Time, t PH. Latch Enable Minimum Width, t LEN Setup Time, t PS Typ. ns 2 ns 2 ns ns ns 63 ns ns ns ns 2 ns Truth Table B5 B4 8dB Serial Word B3 4 db B2 2 db B db B.5 db Relative Gain Setting High High High High High High Reference db High High High High High Low -.5 db High High High High Low High db High High High Low High High -2 db High High Low High High High -4 db High Low High High High High -8 db Low High High High High High - Low Low Low Low Low Low - Any combination of the above states will provide a relative gain setting approximately equal to the sum of the bits selected. variable gain amplifiers - digital - SMT For price, delivery and to place orders: Hittite Microwave Corporation, 2 Alpha Road, Chelmsford, MA 824 Phone: Fax: Order On-line at Application Support: Phone: or apps@hittite.com - 6

7 v3..5 db LSB GaAs MMIC 6-BIT DIGITAL VARIABLE Absolute Maximum Ratings RF Input Power [] (At Max Gain Setting) Digital Inputs (Reset, Shift Clock, Latch Enable & Serial Input) Bias Voltage (Vdd) 5.5V Collector Bias Voltage (Vcc) 5.5V Channel/Junction Temperature 5 C Continuous Pdiss (T = 85 C) (derate 9.8 mw/ C above 85 C) [] Thermal Resistance.5 dbm (T = +85 C) -.5 to Vdd +.5V.29 W 5.8 C/W Storage Temperature -65 to +5 C Operating Temperature -4 to +85 C [] The Max RF Input Power Rating will increase by.5 db for every.5 db reduction in gain to a maximum RF Input Power of dbm. Bias Voltage Vdd (V) Idd (Typ.) (ma) +5 5 Vs (V) Is (ma) Is 2 (ma) Control Voltage Table State Vdd = +3V Vdd = +5V Low < µa < µa High 2 to < µa 2 to < µa ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS Variable gain amplifiers - digital - SMT Outline Drawing Package Information NOTES:. LEADFRAME MATERIAL: COPPER ALLOY 2. DIMENSIONS ARE IN INCHES [MILLIMETERS] 3. LEAD SPACING TOLERANCE IS NON-CUMULATIVE. 4. PAD BURR LENGTH SHALL BE.5mm MAXIMUM. PAD BURR HEIGHT SHALL BE.5mm MAXIMUM. 5. PACKAGE WARP SHALL NOT EXCEED.5mm. 6. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO PCB RF GROUND. 7. REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED LAND PATTERN. Part Number Package Body Material Lead Finish MSL Rating Package Marking [3] [] H68 HMC68LP5 Low Stress Injection Molded Plastic Sn/Pb Solder MSL XXXX [2] H68 HMC68LP5E RoHS-compliant Low Stress Injection Molded Plastic % matte Sn MSL XXXX [] Max peak reflow temperature of 235 C [2] Max peak reflow temperature of 26 C [3] 4-Digit lot number XXXX - 7 For price, delivery and to place orders: Hittite Microwave Corporation, 2 Alpha Road, Chelmsford, MA 824 Phone: Fax: Order On-line at Application Support: Phone: or apps@hittite.com

8 v3..5 db LSB GaAs MMIC 6-BIT DIGITAL VARIABLE Pin Descriptions Pin Number Function Description Interface Schematic, 5, 9, 4, 6, 23, 28 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, 2 RFin,RFin2 This pin is DC coupled. An off chip DC blocking capacitor is required. 4, 22 RFout, RFout2 3, 7, 8, 2 GND RF output and DC bias (Vcc) for the output stage of the amplifiers. Amplifier bias provided via external bias tee as shown in application circuit. These pins and package bottom must be connected to RF/DC ground. 6, 9 ATTin, ATTout 8,,,, 3, 5, 7 ACG, ACG2, ACG3, ACG4, ACG5, ACG6, ACG7 These pins are DC coupled and matched to 5 Ohms. Blocking capacitors are required. Select value based on lowest frequency of operation. External capacitors to ground is required. Select value for lowest frequency of operation. Place capacitor as close to pins as possible. 24 SEROUT Serial input data delayed by 6 clock cycles. 25, 26 PUP2, PUP 3 CLK 3 SERIN 32 LE Refer to truth tables and serial control interface diagram. 29 P/S Apply +5V for normal operation. 27 Vdd Supply voltage variable gain amplifiers - digital - SMT For price, delivery and to place orders: Hittite Microwave Corporation, 2 Alpha Road, Chelmsford, MA 824 Phone: Fax: Order On-line at Application Support: Phone: or apps@hittite.com - 8

9 v3..5 db LSB GaAs MMIC 6-BIT DIGITAL VARIABLE Application Circuit Variable gain amplifiers - digital - SMT Components for Selected Frequencies Tuned Frequency 5-35 MHz 35 - MHz Evaluation PCB C, C2, C9, C 33 pf pf C6 - C8 33 pf pf L, L2 56 nh 27 nh - 9 For price, delivery and to place orders: Hittite Microwave Corporation, 2 Alpha Road, Chelmsford, MA 824 Phone: Fax: Order On-line at Application Support: Phone: or apps@hittite.com

10 v3..5 db LSB GaAs MMIC 6-BIT DIGITAL VARIABLE Evaluation PCB List of Materials for Evaluation PCB [] Item Description J - J2 PCB Mount SMA Connector J3 8 Pin DC Connector J4 - J7, J9 DC Pin C, C2, C9, C Capacitor, 42 Pkg. [] C3 - C5 pf Capacitor, 42 Pkg. C6 - C8 Capacitor, 42 Pkg. [] C - C3 pf Capacitor, 42 Pkg. C4, C5 2.2 µf Capacitor, CASE A Pkg. R, R2.8 Ohm Resistor, 63 Pkg. L, L2 Inductor, 63 Pkg. [] U HMC68LP5(E) Variable Gain Amplifier PCB [2] 969 Evaluation PCB [] Please reference Components for Selected Frequencies table. [2] Circuit Board Material: Arlon 25FR The circuit board used in the application should use RF circuit design techniques. Signal lines should have 5 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. Refer to Components for Selected Frequencies table for part number. variable gain amplifiers - digital - SMT For price, delivery and to place orders: Hittite Microwave Corporation, 2 Alpha Road, Chelmsford, MA 824 Phone: Fax: Order On-line at Application Support: Phone: or apps@hittite.com -