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HMC685LP4 / 685LP4E
v03.0409
BiCMOS MMIC MIXER W/ INTEGRATED LO AMPLIFIER, 1.7 - 2.2 GHz
Typical Applications
The HMC685LP4(E) is Ideal for: * Cellular/3G & LTE/WiMAX/4G
Features
High Input IP3: +35 dBm 8 dB Conversion Loss @ 0 dBm LO Optimized for Low Side LO Input Upconversion & Downconversion Applications Adjustable Supply Current 24 Lead 4x4mm SMT Package: 16mm2
8
MIXERS - DOWNCONVERTERS - SMT
* Basestations & Repeaters * GSM, CDMA & OFDM * Transmitters and Receivers
Functional Diagram
General Description
The HMC685LP4(E) is a high dynamic range passive MMIC mixer with integrated LO amplifier in a 4x4 SMT QFN package covering 1.7 to 2.2 GHz. Excellent input IP3 performance of +35 dBm for down conversion is provided for 3G & 4G GSM/CDMA applications at an LO drive of 0 dBm. With an input 1 dB compression of +27 dBm, the RF port will accept a wide range of input signal levels. Conversion loss is 8 dB typical. The DC to 500 MHz IF frequency response will satisfy GSM/CDMA transmit or receive frequency plans. The HMC685LP4(E) is pin for pin compatible with the HMC684LP4(E) which is a 700 - 1000 MHz mixer with LO amplifier.
Electrical Specifi cations,
TA = +25 C, IF = 200 MHz, LO = 0 dBm, Vcc = Vcc1, 2, 3 = +5V, G_Bias = +2.5V*
Nominal Supply Parameter Frequency Range, RF Frequency Range, LO Frequency Range, IF Conversion Loss Noise Figure (SSB) LO to RF Isolation LO to IF Isolation RF to IF Isolation IP3 (Input) 1 dB Compression (Input) LO Drive Input Level (Typical) Supply Current Icc total 22 24 30 8 8 30 30 42 35 25 -6 to +3 120 140 Min. Icc = 120 mA Typ. Max. 1.7 - 2.2 1.5 - 2.2 DC - 500 10 8 8 33 31 42 34 24 -6 to +3 90 8 8 34 32 43 32 23 -6 to +3 70 Icc = 90 mA Typ. Icc = 70 mA Units Typ. GHz GHz MHz dB dB dB dB dB dBm dBm dBm mA
* Unless otherwise noted all measurements performed as downconverter with low side LO & IF = 200 MHz.
8 - 242
For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
HMC685LP4 / 685LP4E
v03.0409
BiCMOS MMIC MIXER W/ INTEGRATED LO AMPLIFIER, 1.7 - 2.2 GHz
Conversion Gain vs. Temperature
0
Isolation
0 -10
RF/IF LO/RF LO/IF
CONVERSION GAIN (dB)
-5 ISOLATION (dB) -20 -30
8
1.8 2 RF FREQUENCY (GHz) 2.2 2.4
-10
-15
+25 C +85 C -40 C
-50 -60 1.6
-20 1.6
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
RF FREQUENCY (GHz)
Conversion Gain vs. LO Drive
0
Return Loss
0 -5 RETURN LOSS (dB)
-5
-10 -15 -20 -25 -30 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9
RF LO
-10
-15
-6 dBm -3 dBm 0 dBm +3 dBm
-20 1.6
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
2
2.1 2.2 2.3 2.4
RF FREQUENCY (GHz)
FREQUENCY (GHz)
IF Bandwidth (LO= 1.7 GHz)
0 -5
Input P1dB vs. Temperature
30
25 RESPONSE (dB) P1dB (dBm) -10 -15 -20 15 -25 -30 0 0.1 0.2 0.3 0.4 0.5 IF FREQUENCY (GHz) 10 1.6
+25 C +85 C -40 C IF Return Loss Conversion Gain
20
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
RF FREQUENCY (GHz)
For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
8 - 243
MIXERS - DOWNCONVERTERS - SMT
-40
CONVERSION GAIN (dB)
HMC685LP4 / 685LP4E
v03.0409
BiCMOS MMIC MIXER W/ INTEGRATED LO AMPLIFIER, 1.7 - 2.2 GHz
Input IP3 vs. LO Drive [1]
40
Input IP3 vs. Temperature[1]
40
IP3 (dBm)
20
MIXERS - DOWNCONVERTERS - SMT
-6 dBm -3 dBm 0 dBm +3 dBm
IP3 (dBm)
8
30
30
20
10
10
+25 C +85 C -40 C
0 1.6
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
0 1.6
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
RF FREQUENCY (GHz)
RF FREQUENCY (GHz)
+2RF -2LO Response vs. Temperature [2]
80 +2RF-2LO RESPONSE (dBc)
+2RF -2LO Response vs. LO Drive [2]
80 +2RF-2LO RESPONSE (dBc)
70
70
60
60
50
+25 C +85 C -40 C
50
-6 dBm -3 dBm 0 dBm +3 dBm
40 1.6
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
40 1.6
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
RF FREQUENCY (GHz)
RF FREQUENCY (GHz)
+3RF -3LO Response vs. Temperature [2]
85 +3RF-3LO RESPONSE (dBc)
+3RF -3LO Response vs. LO Drive [2]
85 +3RF-3LO RESPONSE (dBc)
80
80
75
75
70
70
-6 dBm -3 dBm 0 dBm +3 dBm
65
+25 C +85 C -40 C
65
60 1.6
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
60 1.6
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
RF FREQUENCY (GHz)
RF FREQUENCY (GHz)
[1] Two-tone input power = +9 dBm each tone, 1 MHz spacing
[2] Referenced to RF input power at 0 dBm
8 - 244
For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
HMC685LP4 / 685LP4E
v03.0409
BiCMOS MMIC MIXER W/ INTEGRATED LO AMPLIFIER, 1.7 - 2.2 GHz
Low Power Consumption Performance Conversion Gain vs. G_Bias Voltage
-6 -7 -8 IP3 (dBm) 28 -9 -10 -11 -12 1.6
1V 1.5 V 2V 2.5 V 3V
Input IP3 vs. G_Bias Voltage [1]
32
Vcc1, 2, 3 = 3.3 V R9 = 270 Ohms
CONVERSION GAIN (dB)
30
Icc = 75 mA
8
1V 1.5 V 2V 2.5 V 3V
Vcc1, 2, 3 = 3.3 V R9 = 270 Ohms Icc = 75 mA
24
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
22 1.6
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
RF FREQUENCY (GHz)
RF FREQUENCY (GHz)
Conversion Gain vs. G_Bias Voltage
-6 -7 -8
Input IP3 vs. G_Bias Voltage [1]
36
Vcc1, 2, 3 = 5.0 V R9 = 270 Ohms Icc = 120 mA
CONVERSION GAIN (dB)
34
32
-9 -10 -11 -12 1.6
1.5 V 2V 2.5 V 3V 3.5 V
30
Vcc1, 2, 3 = 5.0 V R9 = 270 Ohms Icc = 120 mA
28
1.5 V 2V 2.5 V 3V 3.5 V
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
26 1.6
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
RF FREQUENCY (GHz)
RF FREQUENCY (GHz)
Conversion Gain vs. Icc
-7 -7.5 -8 -8.5 -9 -9.5 -10 1.6
120 mA 110 mA 100 mA 90 mA 80 mA 70 mA Vcc1, 2, 3 = 5.0 V G_Bias = 2.5 V
Input IP3 vs. Icc [1]
37 35 33 IP3 (dBm) 31 29 27 25 1.6
Vcc1, 2, 3 = 5.0 V G_Bias = 2.5 V
CONVERSION GAIN (dB)
120 mA 110 mA 100 mA 90 mA 80 mA 70 mA
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
RF FREQUENCY (GHz)
RF FREQUENCY (GHz)
[1] Two-tone input power = +9 dBm each tone, 1 MHz spacing
For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
8 - 245
MIXERS - DOWNCONVERTERS - SMT
26
IP3 (dBm)
HMC685LP4 / 685LP4E
v03.0409
BiCMOS MMIC MIXER W/ INTEGRATED LO AMPLIFIER, 1.7 - 2.2 GHz
Low Power Consumption Performance Conversion Gain vs. Temperature, Icc = 70 mA
-6 -7 -8 -9 -10 -11 -12 1.6
+25 C +85 C -40 C
Input IP3 vs. Temperature, Icc = 70 mA [1]
35
CONVERSION GAIN (dB)
MIXERS - DOWNCONVERTERS - SMT
IP3 (dBm)
8
30
25
+25 C +85 C -40 C
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
20 1.6
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
RF FREQUENCY (GHz)
RF FREQUENCY (GHz)
Icc vs. R9
130 120 110 Icc (mA) 100 90 80 70 60 250
Vcc1, 2, 3 = 5.0 V
300
350
400
450
500
550
600
R9 (Ohms)
Typical Upconverter Performance Conversion Gain vs. LO Drive
0
Input IP3 vs. LO Drive [1]
40
CONVERSION GAIN (dB)
-5 IP3 (dBm)
30
-10
-6 dBm -3 dBm 0 dBm +3 dBm
20
-6 dBm -3 dBm 0 dBm +3 dBm
-15
10
-20 1.6
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
0 1.6
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
RF FREQUENCY (GHz)
RF FREQUENCY (GHz)
[1] Two-tone input power = +9 dBm each tone, 1 MHz spacing.
8 - 246
For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
HMC685LP4 / 685LP4E
v03.0409
BiCMOS MMIC MIXER W/ INTEGRATED LO AMPLIFIER, 1.7 - 2.2 GHz
Absolute Maximum Ratings
RF / IF Input (Vcc1, 2, 3 = +5V) LO Drive (Vcc1, 2, 3 = +5V) Vcc1-3 Channel Temperature Continuous Pdiss (T = 85C) (derate 20.69 mW/C above 85C) Thermal Resistance (channel to ground paddle) Storage Temperature Operating Temperature +23 dBm +10 dBm 5.5V 125 C 0.83 mW 48.33 C/W -65 to 150 C -40 to +85 C
MxN Spurious @ IF Port
nLO mRF 0 1 2 3 4 0 xx 39 67 106 106 1 21 0 64 77 116 2 16 37 54 95 115 3 37 24 66 69 99 4 29 53 76 89 105
8
MIXERS - DOWNCONVERTERS - SMT
8 - 247
RF Freq. = 1.9 GHz @ 0 dBm LO Freq. = 1.7 GHz @ 0 dBm All values in dBc below IF power level (1RF - 1LO).
ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS
Typical Supply Current vs. Vcc
Vcc1, 2, 3 (V) 4.75 5.00 5.25 Icc total (mA) 113 120 127
Harmonics of LO
nLO Spur @ RF Port LO Freq. (GHz) 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 1 29 28 29 29 29 30 31 35 2 13 13 14 16 20 22 22 21 3 32 35 41 41 42 37 35 34 4 25 19 18 20 28 30 31 33
Downconverter will operate over full voltage range shown above.
LO = 0 dBm All values in dBc below input LO level measured at RF port.
For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
HMC685LP4 / 685LP4E
v03.0409
BiCMOS MMIC MIXER W/ INTEGRATED LO AMPLIFIER, 1.7 - 2.2 GHz
Outline Drawing
8
MIXERS - DOWNCONVERTERS - SMT
NOTES: 1. PACKAGE BODY MATERIAL: LOW STRESS INJECTION MOLDED PLASTIC SILICA AND SILICON IMPREGNATED. 2. LEAD AND GROUND PADDLE MATERIAL: COPPER ALLOY. 3. LEAD AND GROUND PADDLE PLATING: 100% MATTE TIN. 4. DIMENSIONS ARE IN INCHES [MILLIMETERS]. 5. LEAD SPACING TOLERANCE IS NON-CUMULATIVE. 6. PAD BURR LENGTH SHALL BE 0.15mm MAX. PAD BURR HEIGHT SHALL BE 0.25mm MAX. 7. PACKAGE WARP SHALL NOT EXCEED 0.05mm 8. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO PCB RF GROUND. 9. REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED PCB LAND PATTERN.
Package Information
Part Number HMC685LP4 HMC685LP4E Package Body Material Low Stress Injection Molded Plastic RoHS-compliant Low Stress Injection Molded Plastic Lead Finish Sn/Pb Solder 100% matte Sn MSL Rating MSL1 MSL1
[1]
Package Marking [3] H685 XXXX H685 XXXX
[2]
[1] Max peak reflow temperature of 235 C [2] Max peak reflow temperature of 260 C [3] 4-Digit lot number XXXX
8 - 248
For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
HMC685LP4 / 685LP4E
v03.0409
BiCMOS MMIC MIXER W/ INTEGRATED LO AMPLIFIER, 1.7 - 2.2 GHz
Pin Descriptions
Pin Number 1, 6, 7, 11 - 14, 18, 20, 23 2, 5, 15, 17 Function N/C Description No connection. These pins may be connected to RF ground. Performance will not be affected. Package bottom must be connected to RF/DC ground. This pin is matched single-ended 50 ohm and DC shorted to ground through a balun. Interface Schematic
GND
8
MIXERS - DOWNCONVERTERS - SMT
8 - 249
3
RF
4
TAP
Center tap of secondary side of the internal RF balun. Short to ground with a zero ohm close to the IC.
8, 10, 24
Vcc1, Vcc2, Vcc3
Power supply voltage. See application circuit for required external components.
9
LO_BIAS
LO buffer current adjustment pin. Adjust the LO buffer current through the external resistor R9 shown in the application circuit (connect 270 Ohms for nominal operation). This adjustment allows for a trade-off between power dissipation and linearity performance of the converter.
16
LO
This pin is matched single-ended 50 ohm and DC shorted to ground through a balun.
19
G_BIAS
External bias. See application circuit for recommended external components. Apply +2.5V for nominal operation at 5V supply voltage. G_Bias can be set to between 0 and 5Vdc. The G_bias pin has an internal 15K ohm resistance to ground. This adjustment allows for a trade off between conversion loss and linearity performance of the converter (see figures CG, IP3 vs. G-Bias).
21, 22
IFN, IFP
Differential IF input / output pins matched to differential 50 ohms. For applications not requiring operation to DC an off chip DC blocking capacitor should be used.
For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
HMC685LP4 / 685LP4E
v03.0409
BiCMOS MMIC MIXER W/ INTEGRATED LO AMPLIFIER, 1.7 - 2.2 GHz
Evaluation PCB
8
MIXERS - DOWNCONVERTERS - SMT
List of Materials for Evaluation PCB 119935 [1]
Item J1 - J3 J4 - J7 C19 C7, C8 C10, C12, C16, C18 C11, C15, C17, C21 C20 R2 - R4, R7, R8 R9 T1 U1 PCB [2] Description SMA Connector DC Pin 22 pF Capacitor, 0402 Pkg. 10 nF Capacitor, 0402 Pkg. 1 nF Capacitor, 0402 Pkg. 0.1 F Capacitor, 0402 Pkg. 4.7 F Case A, Tantulum 0 Ohm Resistor, 0402 Pkg. 270 Ohm Resistor, 0603 Pkg. 1:1 Transformer - Tyco MABA CT0039 HMC685LP4(E) Downconverter 118162 Evaluation PCB
The circuit board used in the final 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.
[1] Reference this number when ordering complete evaluation PCB [2] Circuit Board Material: Arlon 25R, FR4
8 - 250
For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
HMC685LP4 / 685LP4E
v03.0409
BiCMOS MMIC MIXER W/ INTEGRATED LO AMPLIFIER, 1.7 - 2.2 GHz
Application Circuit
8
MIXERS - DOWNCONVERTERS - SMT
For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
8 - 251

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