= +25 C, 50 Ohm System, Vdd = +5V

Transcription

1 v3.69 HMC68LP4 / 68LP4E VARIABLE GAIN AMPLIFIER, 3-4 MHz Variable gain amplifiers - digital - SMT Typical Applications The HMC68lp4(E) is ideal for: Cellular/3G Infrastructure WiBro / WimaX / 4G Microwave Radio & Vsat Test Equipment and Sensors IF & RF Applications Functional Diagram Features General Description Electrical Specifications, T A = +2 C, Ohm System, Vdd = +V The HMC68lp4(E) is a digitally controlled variable gain amplifier which operates from 3 to 4 MHz, and can be programmed to provide -4 db to +19 db of gain, in 1 db steps. The HMC68lp4(E) delivers noise figure of db in its maximum gain state, with output ip3 of up to +4 dbm in any state. This high linearity DVga also provides a differential rf output which can be used to interface directly with saw filters in Tx and Rx applications, and with digital to analog converters in Rx chains. The HMC68lp4(E) is housed in a RoHS compliant 4x4 mm QFN leadless package, and is CMOS/ TTL compatible. Parameter Min. Typ. Max. Units Frequency Range 3-4 MHz Gain (Maximum Gain State) db Gain Control Range 23 db Input Return Loss db Output Return Loss 13 db Gain Accuracy: (Referenced to Maximum Gain State) All Gain States ± (.1 + 3% of Gain Setting) Max. db Output Power for 1dB Compression 23 2 dbm Output Third Order Intercept Point (Two-Tone Output Power= + dbm Each Tone) [1] 4 dbm Output Second Order Intercept Point (Two-Tone Output Power= + dbm Each Tone) [1] 6 dbm Harmonics 2nd Order 3rd Order Step Accuracy (Referenced to Maximum Gain State) ±.2 db Noise Figure (max gain state) db Switching Characteristics trise, tfall (1/9% RF) ton, toff (% Ctl to 1/9% RF) ttl/cmos compatible parallel or latched parallel control interface High Output IP3: +4 dbm (At all gain settings) Low Noise Figure: db Wide Gain Control Range: 23 db 24 Lead 4x4 mm SMT Package: 16 mm 2 Excellent State & Step Accuracy (±. db) Control Supply Current Idd 4 ma Amp Supply Current (rfoutp) 2 13 ma Amp Supply Current (rfoutn) 2 13 ma [1] Test frequency MHz dbc dbc ns ns - 1 For price, delivery and to place orders: Hittite Microwave Corporation, 2 Alpha Road, Chelmsford, MA 1824 Phone: Fax: Order On-line at Application Support: Phone: or apps@hittite.com

2 v3.69 HMC68LP4 / 68LP4E VARIABLE GAIN AMPLIFIER, 3-4 MHz Maximum Gain vs. Frequency 2 Normalized Attenuation GAIN (db) C +8 C -4 C NORMALIZED ATTENUATION (db) db 16 db 23 db Input Return Loss RETURN LOSS (db) I.L Maximum Attenuation Bit Error vs. Frequency BIT ERROR (db) , 2, 4, 8, 16 db 23 db Output Return Loss RETURN LOSS (db) I.L Maximum Attenuation Bit Error vs. Attenuation State BIT ERROR (db) MHz Bit Error > 1dB, 4MHz And Above Bit Error < 1dB, 4MHz And Below ATTENUATION STATE (db) 6MHz variable gain amplifiers - digital - SMT For price, delivery and to place orders: Hittite Microwave Corporation, 2 Alpha Road, Chelmsford, MA 1824 Phone: Fax: Order On-line at Application Support: Phone: or apps@hittite.com - 2

3 v3.69 HMC68LP4 / 68LP4E VARIABLE GAIN AMPLIFIER, 3-4 MHz Step Accuracy vs. Frequency 2 Relative Phase vs. Frequency 8 Variable gain amplifiers - digital - SMT STEP ERROR (db) Output IP3 vs. Temperature (+ dbm Output Power Per Tone) IP3 (dbm) C +2C +8C Noise Figure vs. Attenuation State NOISE FIGURE (db) I.L. 1dB 2dB 8 db 1, 2, 4, 23 db db 4dB 8dB RELATIVE PHASE (deg) , 23 db 8 db Output IP2 vs. Temperature (+ dbm Output Power Per Tone) 1, 2, 4 db Output P1dB vs. Temperature P1dB (dbm) IP2 (dbm) C +2C +8C C +2C +8C For price, delivery and to place orders: Hittite Microwave Corporation, 2 Alpha Road, Chelmsford, MA 1824 Phone: Fax: Order On-line at Application Support: Phone: or apps@hittite.com

4 v3.69 HMC68LP4 / 68LP4E VARIABLE GAIN AMPLIFIER, 3-4 MHz Harmonics vs. Frequency Supply Current vs. Temperature 28 HARMONIC (dbc) nd Harmonic 3rd Harmonic Id (ma) C +2C +8C Absolute Maximum Ratings RF Input Power rf Output Power Digital Inputs (B-B4, Latch Enable) Bias Voltage (Vdd) 2 dbm 22 dbm -. to Vdd +.V.6 V Channel Temperature C Continuous Pdiss (T = 8 C) (derate 42 mw/ C above 8 C) Thermal Resistance (channel to ground paddle) 1.7 W 24 C/W Storage Temperature -6 to +1 C Operating Temperature -4 to +8 C ELECtrOstatiC SENSITIVE DEVICE ObserVE Handling precautions Amp Bias Voltage Vdd RF (V) Idd (Typ.) (ma) V 244 Control Voltage Table State Vdd = +3V Vdd = +V Low <1 µa <1 µa High 2 to <1 µa 2 to <1 µa Truth Table VOLTAGE (V) ATTENUatiON (db) B4 [1] B3 [1] B2 B1 B X 17 1 X X X X X X X [1] Enabling B4 disables B3, the minimum attenuation is 16 db Control Interface: The gain of HMC68lp4(E) is controlled by adjusting the state of the attenuator. The attenuator has a -bit parallel CMOS/ttl compatible interface. State of the attenuator can be set with respect to the truth table above. Power on sequence: The ideal power up sequence is: gnd, Vdd, Digital inputs, rf inputs. Relative order of the digital inputs is not important as long as they are powered after Vdd/gnd. variable gain amplifiers - digital - SMT For price, delivery and to place orders: Hittite Microwave Corporation, 2 Alpha Road, Chelmsford, MA 1824 Phone: Fax: Order On-line at Application Support: Phone: or apps@hittite.com - 4

5 v3.69 HMC68LP4 / 68LP4E VARIABLE GAIN AMPLIFIER, 3-4 MHz Outline Drawing Variable gain amplifiers - digital - SMT Package Information Part Number Package Body Material Lead Finish msl Rating Package Marking [3] [1] H68 HMC68lp4 Low Stress Injection Molded Plastic Sn/Pb Solder msl1 XXXX [2] H68 HMC68lp4E RoHS-compliant Low Stress Injection Molded Plastic 1% matte Sn msl1 XXXX [1] Max peak reflow temperature of 23 C [2] Max peak reflow temperature of 26 C [3] 4-Digit lot number XXXX 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.1mm MAXimUM. PAD BUrr HeigHT SHall BE.mm MAXimUM.. PACKage Warp SHall NOT EXCeed.mm. 6. ALL GROUnd LEADS AND GROUnd PADDLE MUst BE SOldered TO PCB RF GROUnd. 7. REFER TO Hittite APPLICatiON NOTE FOR SUggested LAND PATTERN. - For price, delivery and to place orders: Hittite Microwave Corporation, 2 Alpha Road, Chelmsford, MA 1824 Phone: Fax: Order On-line at Application Support: Phone: or apps@hittite.com

6 v3.69 HMC68LP4 / 68LP4E VARIABLE GAIN AMPLIFIER, 3-4 MHz Pin Descriptions Pin Number Function Description Interface Schematic 1 ibias Bias current to amplifier. External inductors required. 2,, 6, Package Bottom N/C, GND These pins and package bottom must be connected to RF/DC ground. 3 iset External bias resistor to adjust the current of the amplifier. 4, 18 Vdd Power Supply 9, 1, 11,, 13 7, 8 2, 24 21, 23 B4 - B rfoutp, rfoutn ampinn, ampinp fb2, fb1 22 le 14 rfin 1, 16, 17 FC3 - FC1 19 attnout Control inputs to digital attenuator. See Truth Table & Control Voltage Table. Balanced amplifier outputs. External components required Balanced Amplifier inputs. External components required. Feedback capacitance for the amplifier. Common mode emitter inductor. The LE Pin requires high quality (less than 2mOhms resistance) inductor to ground. An inductance of 1nH is recommended. RF input to digital attenuator. DC blocking capacitor required. External capacitors to ground are required. Place these capacitors close to the package. rf output to digital attenuator. DC blocking capacitor required. variable gain amplifiers - digital - SMT For price, delivery and to place orders: Hittite Microwave Corporation, 2 Alpha Road, Chelmsford, MA 1824 Phone: Fax: Order On-line at Application Support: Phone: or apps@hittite.com - 6

7 v3.69 HMC68LP4 / 68LP4E VARIABLE GAIN AMPLIFIER, 3-4 MHz Application Circuit Variable gain amplifiers - digital - SMT - 7 For price, delivery and to place orders: Hittite Microwave Corporation, 2 Alpha Road, Chelmsford, MA 1824 Phone: Fax: Order On-line at Application Support: Phone: or apps@hittite.com

8 v3.69 HMC68LP4 / 68LP4E VARIABLE GAIN AMPLIFIER, 3-4 MHz Evaluation PCB List of Materials for Evaluation PCB 118 [1] Item J1 - J2 J3 C1 - C8, C11 - C14 C9 C1 C1 Description PCB Mount SMA Connector Pin DC Connector 1 pf Capacitor, 42 Pkg. 1 pf Capacitor, 42 Pkg. 1k pf Capacitor, 42 Pkg. 4.7 µf Tantalum Capacitor, Case A Size L1, L2 68 nh Inductor, 8 Pkg. L3, L4 33 nh Inductor, 63 Pkg. L R1 R2 - R6 1 nh Inductor, 63 Pkg. 68 Ohm Resistor, 63 Pkg. 39 kohm Resistor, 42 Pkg. R7, R8 Ohm Resistor, 42 Pkg. T1, T2 U1 PCB [2] 1:1 RF Transformer, MA/COM SMT Balun (etc1-1-13) HMC68lp4(E) Variable Gain Amplifier 1184 Evaluation PCB [1] Reference this number when ordering complete evaluation PCB [2] Circuit Board Material: Arlon 2fr or Rogers 43 The circuit board used in the application should use rf circuit design techniques. Signal lines should have 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. variable gain amplifiers - digital - SMT For price, delivery and to place orders: Hittite Microwave Corporation, 2 Alpha Road, Chelmsford, MA 1824 Phone: Fax: Order On-line at Application Support: Phone: or apps@hittite.com - 8