HMC681LP5 HITTITE | Alldatasheet
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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 apps@hittite.com Variable gain amplifiers - digital - smt HMC681LP5 / 681LP5E v03.1010 Functional Diagram Electrical Specifications, TA = +25° C, Vdd = Vs= P/S= +5V the HmC681lp5(e) is ideal for:
- if & rf applications
- Cellular/3g infrastructure
- Wibro / WimaX / 4g
- microwave radio & Vsat
- test equipment and sensors +13.5 db to +45 db gain Control in 0.5 db steps High Output ip3: +36 dbm ±0.25 db typical gain step error single +5V supply 32 lead 5x5mm smt package: 25mm2 the H mC681lp5(e) is a digitally controlled variable gain amplifier which operates from dC to 1 gHz, and can be programmed to provide anywhere from 13.5 d b, to 45 d b of gain, in 0.5 d b steps. the HmC681lp5(e) delivers noise figure of 2.8 d b in its maximum gain state, with output ip3 of up to +36 dbm in any state. this serially controlled digital V ga incorporates off chip aC ground capacitors for near dC operation, making it suitable for a wide variety of rf and if applications. the HmC681lp5(e) is housed in a roHs compliant 5x5 mm Q fn leadless package, and provides the user with a highly integrated solution. this functionality is also available with parallel control as the HmC626lp5(e). parameter 50 - 350 350 - 1000 mHz gain (maximum gain state) 40 45 30 40 db gain Control r ange 31.5 31.5 db input return loss 25 30 db Output return loss 20 17 db gain setting accuracy: (referenced to m aximum gain state) all gain states ± (0.15 + 3% of relative gain setting) max. ± (0.15 + 3% of relative gain setting) max. db Output power for 1 db Compression 20 19 dbm Output third Order intercept point (two-tone Output power= 5 dbm each tone) 38 36 dbm noise figure 2.7 2.8 db switching Characteristics trise, tfall (10/90% rf) tOn, tOff (50% Ctl to 10/90% rf) 120 120 ns ns total supply Current 176 225 176 225 ma Typical Applications Features General Description 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER w/ SERIAL CONTROL, DC - 1 GHz
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 apps@hittite.com Variable gain amplifiers - digital - smt Relative Gain Setting (Referenced to Maximum Gain State) (Only Major States are Shown)Gain vs. Frequency Input Return Loss (Only Major States are Shown) Output Return Loss (Only Major States are Shown) HMC681LP5 / 681LP5E v03.1010 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER w/ SERIAL CONTROL, DC - 1 GHz +25C +85C -40C GAIN (dB) FREQUENCY (GHz) -40 -35 -30 -25 -20 -15 -10 RETURN LOSS (dB) FREQUENCY (GHz) 31.5dB 2dB -40 -35 -30 -25 -20 -15 -10 RETURN LOSS (dB) FREQUENCY (GHz) 31.5dB I.L -35 -30 -25 -20 -15 -10 RELATIVE GAIN (dB) FREQUENCY (GHz) 31.5 dB 16 dB 8 dB Bit Error vs. Frequency (Only Major States are Shown) Bit Error vs. Relative Gain Setting -1.5 -0.5 0.5 1.5 0 4 8 12 16 20 24 28 32 BIT ERROR (dB) RELATIVE GAIN SETITING (dB) 350MHz 150, 200MHz -1.5 -0.5 0.5 1.5 BIT ERROR (dB) FREQUENCY (GHz) 0.5dB 16dB 31.5dB 50 to 350 MHz Tuning
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 apps@hittite.com Variable gain amplifiers - digital - smt Step Error vs. Frequency (Only Major States are Shown) Relative Phase vs. Frequency (Only Major States are Shown) HMC681LP5 / 681LP5E v03.1010 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER w/ SERIAL CONTROL, DC - 1 GHz -0.8 -0.6 -0.4 -0.2 0.2 0.4 0.6 0.8 STEP ERROR (dB) FREQUENCY (GHz) 16 dB 1 dB -40 -20 RELATIVE PHASE (deg) FREQUENCY (GHz) 31.5 dB 16 dB 0.5 - 16 dB 31.5 dB8 dB Output P1dB (Major States shown are IL through 16 dB)) Output IP3 @ 5 dBm Output Power per Tone (Major States shown are IL through 16 dB) IP3 (dBm) FREQUENCY (GHz) 16 dB I.L. P1dB (dBm) FREQUENCY (GHz) I.L. 16 dB 50 to 350 MHz Tuning
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 apps@hittite.com Variable gain amplifiers - digital - smt Relative Gain Setting (Referenced to Maximum Gain State) (Only Major States are Shown)Gain vs. Frequency Input Return Loss (Only Major States are Shown) Output Return Loss (Only Major States are Shown) 0.2 0.4 0.6 0.8 1 +25 C +85 C -40 C GAIN (dB) FREQUENCY (GHz) -50 -40 -30 -20 -10 0.2 0.4 0.6 0.8 1 RETURN LOSS (dB) FREQUENCY (GHz) 31.5 dB I.L -40 -35 -30 -25 -20 -15 -10 0.2 0.4 0.6 0.8 1 RETURN LOSS (dB) FREQUENCY (GHz) 31.5 dB I.L -35 -30 -25 -20 -15 -10 0.2 0.4 0.6 0.8 1 RELATIVE GAIN (dB) FREQUENCY (GHz) 31.5 dB 16 dB 8 dB Bit Error vs. Frequency (Only Major States are Shown) Bit Error vs. Relative Gain Setting -1.5 -0.5 0.5 1.5 0 4 8 12 16 20 24 28 32 BIT ERROR (dB) RELATIVE GAIN SETTING (dB)
350 MHz
1000 MHz
-1.5 -0.5 0.5 1.5 0.2 0.4 0.6 0.8 1 BIT ERROR (dB) FREQUENCY (GHz) 31.5 dB 16 dB 8 dB HMC681LP5 / 681LP5E v03.1010 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER w/ SERIAL CONTROL, DC - 1 GHz 350 to 1000 MHz Tuning
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 apps@hittite.com Variable gain amplifiers - digital - smt Step Error vs. Frequency (Only Major States are Shown) Relative Phase vs. Frequency (Only Major States are Shown) -0.8 -0.6 -0.4 -0.2 0.2 0.4 0.6 0.8 0.2 0.4 0.6 0.8 1 STEP ERROR (dB) FREQUENCY (GHz) 4, 8 dB 32 dB16 dB -40 -20 0.2 0.4 0.6 0.8 1 RELATIVE PHASE (deg) FREQUENCY (GHz) 31.5 dB 16 dB 8 dB 0.5 - 4 dB PUP Truth Table le pUp1 pUp2 relative gain setting 0 0 0 -31.5 0 1 0 -24 0 0 1 -16 0 1 1 insertion l oss HMC681LP5 / 681LP5E v03.1010 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER w/ SERIAL CONTROL, DC - 1 GHz Output P1dB (Major States shown are IL through 16 dB) Output IP3 @ 5 dBm Output Power per Tone (Major States shown are IL through 16 dB) 0.2 0.4 0.6 0.8 1 IP3 (dBm) FREQUENCY (GHz) 16 dB I.L. 0.2 0.4 0.6 0.8 1 P1dB (dBm) FREQUENCY (GHz) 16 dB I.L. 350 to 1000 MHz Tuning Power-Up States 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. the attenuator 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
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 apps@hittite.com Variable gain amplifiers - digital - smt Serial Control Interface the HmC681lp5(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 C lK 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. serial Word relative gain setting 16 db 8db 4 db 2 db 1 db 0.5 db High High High High High High reference 0 db High High High High High low -0.5 db High High High High low High -1 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 -16 db low low low low low low -31.5 db any combination of the above states will provide a relative gain setting approximately equal to the sum of the bits selected. Truth Table HMC681LP5 / 681LP5E v03.1010 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER w/ SERIAL CONTROL, DC - 1 GHz parameter typ. min. serial period, t sCK 100 ns Control set-up time, t Cs 20 ns Control hold-time, t CH 20 ns le setup-time, t ln 10 ns min. le pulse width, t leW 10 ns min le pulse spacing, t les 630 ns serial clock hold-time from le , tCKn 10 ns Hold time, tpH. 0 ns latch enable minimum Width, t len 10 ns setup time, tps 2 ns
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 apps@hittite.com Variable gain amplifiers - digital - smt Outline Drawing nOtes: 1. leadframe material : COpper allOY 2. dimensi Ons 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 ma XimUm. 5. paCKage Warp sHall nOt eXCeed 0.05mm. 6. all grOUnd leads and gr OUnd paddle mUst be sOldered tO pCb rf grOUnd. 7. refer tO Hittite appli CatiOn nOte fOr sUggested land pattern. part number package body material lead finish msl rating package marking [3] HmC681lp5 low stress injection m olded plastic sn/pb solder msl1 [1] H681 XXXX HmC681lp5e roHs-compliant l ow stress injection m olded plastic 100% matte sn msl1 [2] H681 XXXX [1] max peak reflow temperature of 235 °C [2] m ax peak reflow temperature of 260 °C [3] 4- digit lot number XXXX
Package Information
eleCtrOstatiC sensitiVe deViCe ObserVe Handling preCaUtiOns Bias Voltage Vdd (V) idd (typ.) (ma) +5 5 Vs (V) is1 (ma) is2 (ma) +5 88 88 HMC681LP5 / 681LP5E v03.1010 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER w/ SERIAL CONTROL, DC - 1 GHz rf input power [1] (at max gain setting) -10.5 dbm (t = +85 °C) digital inputs (reset, shift Clock, latch enable & serial input) -0.5 to Vdd +0.5V bias Voltage (Vdd) 5.5V Collector b ias Voltage (Vcc) 5.5V Channel/Junction t emperature 150 °C Continuous pdiss ( t = 85 °C) (derate 19.8 mW/°C above 85 °C) [1] 1.29 W thermal resistance 50.8 °C/W storage temperature -65 to +150 °C Operating temperature -40 to +85 °C [1] the max rf input power rating will increase by 0.5 d b for every 0.5 db reduction in gain to a maximum rf i nput power of 10 dbm. Control Voltage Table state Vdd = +3V Vdd = +5V low 0 to 0.5V @ <1 µa 0 to 0.8V @ <1 µa High 2 to 3V @ <1 µa 2 to 5V @ <1 µa
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 apps@hittite.com Variable gain amplifiers - digital - smt Pin Descriptions pin number function description interface s chematic 1, 5, 9, 14, 16, 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, 20 rfin1,rfin2 this pin is dC coupled. a n off chip dC blocking capacitor is required. 4, 22 rfout1, rfout2 rf output and d C bias (Vcc) for the output stage of the amplifiers. a mplifier bias provided via external bias tee as shown in application circuit. 3, 7, 18, 21 gnd these pins and package bottom must be connected to rf /dC ground. 6, 19 attin, attout these pins are d C coupled and matched to 50 Ohms. blocking capacitors are required. s elect value based on lowest frequency of operation. 8, 10, 11, 12, 13, 15, aCg1, aCg2, aCg3, aCg4, aCg5, aCg6, aCg7 external capacitors to ground is required. s elect value for lowest frequency of operation. p lace capacitor as close to pins as possible. 24 serOUt serial input data delayed by 6 clock cycles. 25, 26 pUp2, pUp1 refer to truth tables and serial control interface diagram.
30 ClK
29 p/s apply +5V for normal operation.
27 Vdd supply voltage
v03.1010 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER w/ SERIAL CONTROL, DC - 1 GHz
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 apps@hittite.com Variable gain amplifiers - digital - smt Application Circuit HMC681LP5 / 681LP5E v03.1010 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER w/ SERIAL CONTROL, DC - 1 GHz tuned frequency 50 - 350 mHz 350 - 1000 mHz evaluation pCb 119171 123115 C1, C2, C9, C10 3300 pf 100 pf C6 - C8 330 pf 100 pf l1, l2 560 nH 270 nH Components for Selected Frequencies
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 apps@hittite.com Variable gain amplifiers - digital - smt Evaluation PCB 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. refer to “Components for selected frequencies” table for part number. List of Materials for Evaluation PCB [1] item description J1 - J2 pCb mount sma Connector J3 18 pin dC Connector J4 - J7, J9 dC pin C1, C2, C9, C10 Capacitor, 0402 p kg. [1] C3 - C5 100 pf Capacitor, 0402 p kg. C6 - C8 Capacitor, 0402 p kg. [1] C11 - C13 1000 pf Capacitor, 0402 p kg. C14, C15 2.2 µf Capacitor, Case a pkg. r1, r2 1.8 Ohm resistor, 0603 p kg. l1, l2 inductor, 0603 p kg. [1] U1 HmC681lp5(e) Variable gain amplifier pCb [2] 119169 evaluation pCb [1] please reference “Components for s elected frequencies” table. [2] Circuit board material: arlon 25fr HMC681LP5 / 681LP5E v03.1010 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER w/ SERIAL CONTROL, DC - 1 GHz