THIS PAGE INTENTIONALLY LEFT BLANK
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
MIXERS - SINGLE & DOUBLE BALANCED - SMT
10
10 - 1
HMC785LP4E
v03.1111
Electrical Specications,
TA = +25° C, LO = 0 dBm, Vcc = Vcc1, 2, 3 = +5V, G_Bias = +2.5V *
Parameter Min. Typ. Max. Units
Frequency Range, RF 1.7 - 2.2 GHz
Frequency Range, LO 1.5 - 2.2 GHz
Frequency Range, IF 50 - 300 MHz
Conversion Loss 810 dB
Noise Figure (SSB) 8 dB
IP3 (Input) 36 dBm
1 dB Compression (Input) 26 dBm
LO to RF Isolation 18 30 dB
LO to IF Isolation 18 25 dB
RF to IF Isolation 25 39 dB
LO Drive Input Level (Typical) -6 to +6 dBm
Supply Current Icc total 160 180 mA
* Unless otherwise noted all measurements performed as downconverter with low side LO & IF = 200 MHz.
BiCMOS MIXER W/ INTEGRATED
LO AMPLIFIER, 1.7 - 2.2 GHz
General Description
Features
Functional Diagram
Typical Applications
The HMC785LP4E is Ideal for:
• Cellular/3G & LTE/WiMAX/4G
• Basestations & Repeaters
• GSM, CDMA & OFDM
• Transmitters and Receivers
The HMC785LP4E is a high dynamic range passive
MMIC mixer with integrated LO amplier in a 4x4
SMT QFN package covering 1.7 to 2.2 GHz. Excellent
input IP3 performance of +38 dBm for down conver-
sion is provided for 3G & 4G GSM/CDMA applications
at an LO drive of 0 dBm. With an input 1 dB com-
pression of +26 dBm, the RF port will accept a wide
range of input signal levels. Conversion loss is 8 dB
typical. Up to 300 MHz IF frequency response will
satisfy GSM/CDMA transmit or receive frequency
plans. The HMC785LP4E is optimized for low side
LO frequency plans for 1.7 - 2.2 GHz RF Band and is
pin for pin compatible with the HMC685LP4E
High Input IP3: +38 dBm
8 dB Conversion Loss @ 0 dBm LO
Optimized for Low Side LO Input
Adjustable Supply Current
24 Lead 4x4mm SMT Package: 16mm2
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
MIXERS - SINGLE & DOUBLE BALANCED - SMT
10
10 - 2
HMC785LP4E
v03.1111
BiCMOS MIXER W/ INTEGRATED
LO AMPLIFIER, 1.7 - 2.2 GHz
Conversion Gain vs. Temperature Conversion Gain vs. LO Drive
Conversion Gain vs. G_Bias Voltage
Conversion Gain vs. Icc
Downconverter Performance
-11
-10
-9
-8
-7
-6
-5
1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4
+25 C
+85 C
-40 C
CONVERSION GAIN (dB)
RF FREQUENCY (GHz)
-11
-10
-9
-8
-7
-6
-5
1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4
-6 dBm
-3 dBm
0 dBm
+3 dBm
+6 dBm
CONVERSION GAIN (dB)
RF FREQUENCY (GHz)
-11
-10
-9
-8
-7
-6
-5
1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4
160 mA
140 mA
120 mA
CONVERSION GAIN (dB)
RF FREQUENCY (GHz)
-11
-10
-9
-8
-7
-6
-5
1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4
2.0 V
2.5 V
3.0 V
CONVERSION GAIN (dB)
RF FREQUENCY (GHz)
Conversion Gain vs. IF Frequency IF Bandwidth (LO = 1.7 GHz)
-11
-10
-9
-8
-7
-6
-5
1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4
100 MHz
200 MHz
300 MHz
CONVERSION GAIN (dB)
RF FREQUENCY (GHz)
-50
-40
-30
-20
-10
0
0 0.1 0.2 0.3 0.4 0.5
IF Return Loss
Conversion Gain
RESPONSE (dB)
IF FREQUENCY (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
MIXERS - SINGLE & DOUBLE BALANCED - SMT
10
10 - 3
[1] Two-tone input power = +9 dBm each tone, 1 MHz spacing.
Input IP3 vs. IF Frequency [1] Input P1dB vs. Temperature
HMC785LP4E
v03.1111
BiCMOS MIXER W/ INTEGRATED
LO AMPLIFIER, 1.7 - 2.2 GHz
Input IP3 vs. Temperature [1] Input IP3 vs. LO Drive [1]
Input IP3 vs. G_Bias Voltage [1]
Input IP3 vs. Icc [1]
Downconverter Performance
15
20
25
30
35
40
45
1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4
+25 C
+85 C
-40 C
IP3 (dBm)
RF FREQUENCY (GHz)
15
20
25
30
35
40
45
1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4
-6 dBm
-3 dBm
0 dBm
+3 dBm
+6 dBm
IP3 (dBm)
RF FREQUENCY (GHz)
15
20
25
30
35
40
45
1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4
160 mA
140 mA
120 mA
IP3 (dBm)
RF FREQUENCY (GHz)
15
20
25
30
35
40
45
1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4
2.0 V
2.5 V
3.0 V
IP3 (dBm)
RF FREQUENCY (GHz)
15
20
25
30
35
40
45
1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4
100 MHz
200 MHz
300 MHz
IP3 (dBm)
RF FREQUENCY (GHz)
15
20
25
30
35
1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4
+25 C
+85 C
-40 C
P1dB (dBm)
RF FREQUENCY (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
MIXERS - SINGLE & DOUBLE BALANCED - SMT
10
10 - 4
[1] Referenced to RF Input Power at 0 dBm
Downconverter Performance
HMC785LP4E
v03.1111
BiCMOS MIXER W/ INTEGRATED
LO AMPLIFIER, 1.7 - 2.2 GHz
+2RF -2LO Response vs. LO Drive [1]
+2RF -2LO Response vs. Temperature [1]
+3RF -3LO Response vs. LO Drive [1]
+3RF -3LO Response vs. Temperature [1]
50
55
60
65
70
75
80
85
1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4
+25 C
+85 C
-40 C
+2RF-2LO RESPONSE (dBc)
RF FREQUENCY (GHz)
50
55
60
65
70
75
80
85
1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4
-6 dBm
-3 dBm
0 dBm
+3 dBm
+6 dBm
+2RF-2LO RESPONSE (dBc)
RF FREQUENCY (GHz)
65
70
75
80
85
90
95
100
1.7 1.8 1.9 2 2.1 2.2 2.3 2.4
+25 C
+85 C
-40 C
+3RF-3LO RESPONSE (dBc)
RF FREQUENCY (GHz)
65
70
75
80
85
90
95
100
1.7 1.8 1.9 2 2.1 2.2 2.3 2.4
-6 dBm
-3 dBm
0 dBm
+3 dBm
+6 dBm
+3RF-3LO RESPONSE (dBc)
RF FREQUENCY (GHz)
IsolationReturn Loss
-30
-25
-20
-15
-10
-5
0
1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3
RF
LO
RETURN LOSS (dB)
FREQUENCY (GHz)
-60
-50
-40
-30
-20
-10
0
1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4
RF/IF
LO/RF
LO/IF
ISOLATION (dB)
RF FREQUENCY (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
MIXERS - SINGLE & DOUBLE BALANCED - SMT
10
10 - 5
Conversion Gain vs. IF Frequency Return Loss
[1] See Upconverter Evaluation PCB and Schematic
HMC785LP4E
v03.1111
BiCMOS MIXER W/ INTEGRATED
LO AMPLIFIER, 1.7 - 2.2 GHz
Conversion Gain vs. Temperature Conversion Gain vs. LO Drive
Conversion Gain vs. G_Bias Voltage
Conversion Gain vs. Icc
Upconverter Performance [1]
-11
-10
-9
-8
-7
-6
-5
1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4
+25 C
+85 C
-40 C
CONVERSION GAIN (dB)
RF FREQUENCY (GHz)
-11
-10
-9
-8
-7
-6
-5
1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4
-6 dBm
-3 dBm
0 dBm
+3 dBm
+6 dBm
CONVERSION GAIN (dB)
RF FREQUENCY (GHz)
-11
-10
-9
-8
-7
-6
-5
1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4
160 mA
140 mA
120 mA
CONVERSION GAIN (dB)
RF FREQUENCY (GHz)
-11
-10
-9
-8
-7
-6
-5
1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4
2.0 V
2.5 V
3.0 V
CONVERSION GAIN (dB)
RF FREQUENCY (GHz)
-11
-10
-9
-8
-7
-6
-5
1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4
100 MHz
200 MHz
300 MHz
CONVERSION GAIN (dB)
RF FREQUENCY (GHz)
-30
-25
-20
-15
-10
-5
0
0 0.5 1 1.5 2 2.5 3
RF
LO
IF
RETURN LOSS (dB)
FREQUENCY (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
MIXERS - SINGLE & DOUBLE BALANCED - SMT
10
10 - 6
Upconverter Performance [1]
HMC785LP4E
v03.1111
BiCMOS MIXER W/ INTEGRATED
LO AMPLIFIER, 1.7 - 2.2 GHz
Input IP3 vs. LO Drive [2]
Input IP3 vs. Temperature [2]
[1] See Upconverter Evaluation PCB and Schematic
[2] Two-tone input power = +9 dBm each tone, 1 MHz spacing.
15
20
25
30
35
40
45
1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4
+25 C
+85 C
-40 C
IP3(dBm)
RF FREQUENCY (GHz)
15
20
25
30
35
40
45
1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4
-6 dBm
-3 dBm
0 dBm
+3 dBm
+6 dBm
IP3(dBm)
RF FREQUENCY (GHz)
15
20
25
30
35
40
45
1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4
160 mA
140 mA
120 mA
IP3(dBm)
RF FREQUENCY (GHz)
15
20
25
30
35
40
45
1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4
2.0 V
2.5 V
3.0 V
IP3(dBm)
RF FREQUENCY (GHz)
15
20
25
30
35
1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4
+25 C
+85 C
-40 C
P1dB (dBm)
RF FREQUENCY (GHz)
Input IP3 vs. G_Bias Voltage [2]
Input P1dB vs. Temperature
Input IP3 vs. Icc [2]
Input IP3 vs. IF Frequency [2]
15
20
25
30
35
40
45
1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4
100 MHz
200 MHz
300 MHz
IP3 (dBm)
RF FREQUENCY (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
MIXERS - SINGLE & DOUBLE BALANCED - SMT
10
10 - 7
HMC785LP4E
v03.1111
BiCMOS MIXER W/ INTEGRATED
LO AMPLIFIER, 1.7 - 2.2 GHz
Typical Supply Current vs. Vcc
Vcc1, 2, 3 (V) Icc total (mA)
4.75 147
5.00 160
5.25 173
Absolute Maximum Ratings
Vcc1-3 5.5 Vdc
RF Input Power (Vcc1, 2, 3 = +5V) +23 dBm
IF Input Power (Vcc1, 2, 3 = +5V) +20 dBm
LO Drive (Vcc1, 2, 3 = +5V) +10 d B m
Junction Temperature 125 °C
Continuous Pdiss (T=85 °C)
(derate 27 mW/°C above 85 °C ) 1.08 W
Thermal Resistance
(junction to ground paddle) 37.04 °C/W
Storage Temperature -65 to 150 °C
Operating Temperature -40 to +85 °C
ESD Sensitivity (HBM) Class 1A
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Outline Drawing
Part Number Package Body Material Lead Finish MSL Rating Package Marking [2]
HMC785LP4E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 [1] H785
XXXX
[1] Max peak reow temperature of 260 °C
[2] 4-Digit lot number XXXX
Package Information
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.
Icc vs. R9
100
120
140
160
180
175 200 225 250 275 300 325
Icc (mA)
R9 (Ohms)
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
MIXERS - SINGLE & DOUBLE BALANCED - SMT
10
10 - 8
HMC785LP4E
v03.1111
BiCMOS MIXER W/ INTEGRATED
LO AMPLIFIER, 1.7 - 2.2 GHz
Pin Number Function Description Interface Schematic
1, 6, 7, 11 - 14,
18, 20, 23 N/C No connection. These pins may be connected to RF
ground. Performance will not be affected.
2, 5, 15, 17 GND Package bottom must be
connected to RF/DC ground.
3RF This pin is matched single-ended to 50 Ohms and DC
shorted to ground through a balun.
4TAP Center tap of secondary side of the internal RF balun.
Short to ground with zero Ohms close to the IC.
8, 10, 24 Vcc1, Vcc2,
Vcc3
Power supply voltage. See application circuit
for required external components.
9LO_BIAS
LO buffer current adjustment pin. Adjust the LO buffer
current through the external resistor R9 shown in the
application circuit (connect 200 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 with a nominal value of 2.5V. See applica-
tion circuit for recommended external components.
G_Bias can be set to between 0 and 5Vdc. This adjust-
ment allows for a trade off between conversion loss
and linearity performance of the converter (see gures
CG, IP3 vs. G-Bias). The G_bias pin has an internal
15 KOhms resistance to ground and 15 KOhms to Vcc.
Internal resistive divider sets 2.5 V for G_bias and can
be changed externally.
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.
Pin Descriptions
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
MIXERS - SINGLE & DOUBLE BALANCED - SMT
10
10 - 9
Evaluation PCB - Downconverter
The circuit board used in the nal application should
use RF circuit design techniques. Signal lines
should have 50 Ohm impedance while the package
ground leads and exposed paddle should be con-
nected 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.
Item Description
J1 - J3 SMA Connector
J4 - J7 DC Pin
C7, C8 10 nF Capacitor, 0402 Pkg.
C10, C12, C16, C18 1 nF Capacitor, 0402 Pkg.
C11, C15, C17, C21 0.1 µF Capacitor, 0402 Pkg.
C19 22 pF Capacitor, 0402 Pkg.
C20 4.7 µF Case A, Tantalum
R2 - R4, R7, R8 0 Ohm Resistor, 0402 Pkg.
R9 200 Ohm Resistor, 0603 Pkg.
T1 1:1 Transformer - Tyco MABA CT0039
U1 HMC785LP4E
PCB [2] 118162 Evaluation PCB
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350 or Arlon 25FR
List of Materials for Evaluation PCB 125329 [1]
HMC785LP4E
v03.1111
BiCMOS MIXER W/ INTEGRATED
LO AMPLIFIER, 1.7 - 2.2 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
MIXERS - SINGLE & DOUBLE BALANCED - SMT
10
10 - 10
Application Circuit - Downconverter
HMC785LP4E
v03.1111
BiCMOS MIXER W/ INTEGRATED
LO AMPLIFIER, 1.7 - 2.2 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
MIXERS - SINGLE & DOUBLE BALANCED - SMT
10
10 - 11
Evaluation PCB - Upconverter
The circuit board used in the nal application should
use RF circuit design techniques. Signal lines
should have 50 Ohm impedance while the package
ground leads and exposed paddle should be con-
nected 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.
Item Description
J1 - J3 SMA Connector
J4 - J7 DC Pin
C7, C8 10 nF Capacitor, 0402 Pkg.
C10, C12, C16, C18 1 nF Capacitor, 0402 Pkg.
C11, C15, C17, C21 0.1 µF Capacitor, 0402 Pkg.
C19 22 pF Capacitor, 0402 Pkg.
C20 4.7 µF Case A, Tantalum
C22 1 pF Capacitor, 0603 Pkg.
C23 1.8 pF Capacitor, 0402 Pkg.
R2 - R4, R7 0 Ohm Resistor, 0402 Pkg.
R9 200 Ohm Resistor, 0603 Pkg.
T1 1:1 Transformer - Tyco MABA CT0039
U1 HMC785LP4E
PCB [2] 118162 Evaluation PCB
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350 or Arlon 25FR
List of Materials for Evaluation PCB 125354 [1]
HMC785LP4E
v03.1111
BiCMOS MIXER W/ INTEGRATED
LO AMPLIFIER, 1.7 - 2.2 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
MIXERS - SINGLE & DOUBLE BALANCED - SMT
10
10 - 12
Application Circuit - Upconverter
HMC785LP4E
v03.1111
BiCMOS MIXER W/ INTEGRATED
LO AMPLIFIER, 1.7 - 2.2 GHz
