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
HMC684LP4 / 684LP4E
BiCMOS MMIC MIXER W/ INTEGRATED
LO AMPLIFIER, 700 - 1000 MHz
v03.0110
General Description
Features
Functional Diagram
Electrical Specications
TA = +25° C, IF = 100 MHz, LO = 0 dBm, Vcc1, 2, 3, = +5V, G_Bias = +3.5V*
Typical Applications
Parameter Min. Typ. Max. Units
Frequency Range, RF 0.7 - 1.0 GHz
Frequency Range, LO 0.6 - 1.0 GHz
Frequency Range, IF DC to 450 MHz
Conversion Loss 7 9 dB
Noise Figure (SSB) 7 dB
LO to RF Isolation 17 23 dB
LO to IF Isolation 20 30 dB
RF to IF Isolation 25 35 dB
IP3 (Input) 32 dBm
1 dB Compression (Input) 25 dBm
LO Drive Input Level (Typical) -6 to +3 dBm
Supply Current Icc Total 85 100 mA
* Unless otherwise noted all measurements performed as downconverter with low side LO & IF = 100 MHz.
The HMC684LP4(E) is Ideal for:
• Cellular/3G & LTE/WiMAX/4G
• Basestations & Repeaters
• GSM, CDMA & OFDM
• Transmitters and Receivers
The HMC684LP4(E) is a high dynamic range passive
MMIC mixer with integrated LO ampliîšžer in a 4x4
SMT QFN package covering 0.7 to 1.0 GHz. Excellent
input IP3 performance of +32 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 +25 dBm, the RF port will accept a wide
range of input signal levels. Conversion loss is 7 dB
typical. The DC to 450 MHz IF frequency response
will satisfy GSM/CDMA transmit or receive frequency
plans. The HMC684LP4(E) is pin for pin compatible
with the HMC685LP4(E) which is a 1.7 - 2.2 GHz mixer
with LO ampliîšžer.
High Input IP3: +32 dBm
Low Conversion Loss: 7 dB
Low LO Drive: 0 dBm
Upconversion & Downconversion Applications
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
Conversion Gain vs. Temperature Isolation
Return Loss
Conversion Gain vs. LO Drive
IF Bandwidth (LO = 0.8 GHz)
HMC684LP4 / 684LP4E
v03.0110
BiCMOS MMIC MIXER W/ INTEGRATED
LO AMPLIFIER, 700 - 1000 MHz
-20
-15
-10
-5
0
0.6 0.7 0.8 0.9 1 1.1 1.2
+25 C
+85 C
-40 C
CONVERSION GAIN (dB)
FREQUENCY (GHz)
-20
-15
-10
-5
0
0.6 0.7 0.8 0.9 1 1.1 1.2
-6 dBm
-3 dBm
0 dBm
+3 dBm
CONVERSION GAIN (dB)
FREQUENCY (GHz)
-30
-25
-20
-15
-10
-5
0
0 0.1 0.2 0.3 0.4 0.5
IF Return Loss
Conversion Gain
RESPONSE (dB)
FREQUENCY (GHz)
-30
-25
-20
-15
-10
-5
0
0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2
RF
LO
RETURN LOSS (dB)
FREQUENCY (GHz)
-60
-50
-40
-30
-20
-10
0
0.6 0.7 0.8 0.9 1 1.1 1.2
RF/IF
LO/RF
LO/IF
ISOLATION (dB)
FREQUENCY (GHz)
Input P1dB vs. Temperature
10
15
20
25
30
0.6 0.7 0.8 0.9 1 1.1 1.2
+25 C
+85 C
-40 C
P1dB (dBm)
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
HMC684LP4 / 684LP4E
v03.0110
BiCMOS MMIC MIXER W/ INTEGRATED
LO AMPLIFIER, 700 - 1000 MHz
Input IP3 vs. Temperature [1]
[1] Two-tone input power = +9 dBm each tone, 1 MHz spacing. [2] Reference to RF Power at 0 dBm
0
10
20
30
40
0.7 0.75 0.8 0.85 0.9 0.95 1
+25 C
+85 C
-40 C
IP3 (dBm)
FREQUENCY (GHz)
Input IP3 vs. LO Drive [1]
0
10
20
30
40
0.7 0.75 0.8 0.85 0.9 0.95 1
-6 dBm
-3 dBm
0 dBm
+3 dBm
IP3 (dBm)
FREQUENCY (GHz)
+2RF -2LO Response vs. LO Drive [2]
40
45
50
55
60
65
70
0.6 0.7 0.8 0.9 1 1.1 1.2
-3 dBm
0 dBm
+3 dBm
+2RF-2LO RESPONSE (dBc)
FREQUENCY (GHz)
+2RF -2LO Response vs. Temperature [2]
40
45
50
55
60
65
70
0.6 0.7 0.8 0.9 1 1.1 1.2
+25 C
+85 C
-40 C
+2RF-2LO RESPONSE (dBc)
FREQUENCY (GHz)
+3RF -3LO Response vs. LO Drive [2]
60
65
70
75
80
85
90
0.6 0.7 0.8 0.9 1 1.1 1.2
-3 dBm
0 dBm
+3 dBm
+3RF-3LO RESPONSE (dBc)
FREQUENCY (GHz)
+3RF -3LO Response vs. Temperature [2]
60
65
70
75
80
85
90
0.6 0.7 0.8 0.9 1 1.1 1.2
+25 C
+85 C
-40 C
+3RF-3LO RESPONSE (dBc)
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
-20
-15
-10
-5
0
0.6 0.7 0.8 0.9 1 1.1 1.2
-6 dBm
-3 dBm
0 dBm
+3 dBm
CONVERSION GAIN (dB)
FREQUENCY (GHz)
0
10
20
30
40
0.6 0.7 0.8 0.9 1 1.1 1.2
-6 dBm
-3 dBm
0 dBm
+3 dBm
IP3 (dBm)
FREQUENCY (GHz)
Upconverter Performance
Conversion Gain vs. LO Drive
Upconverter Performance
Input IP3 vs. LO Drive
HMC684LP4 / 684LP4E
v03.0110
BiCMOS MMIC MIXER W/ INTEGRATED
LO AMPLIFIER, 700 - 1000 MHz
Harmonics of LO
MxN Spurious @ IF Port
nLO
mRF 0 1 2 3 4
0 xx 25 16 25 31
1 25 0 25 17 35
2 52 47 50 55 58
3 82 73 92 70 77
4 112 100 112 110 98
RF Freq. = 0.9 GHz @ 0 dBm
LO Freq. = 0.8 GHz @ 0 dBm
All values in dBc below IF power level (1RF - 1LO).
nLO Spur @ RF Port
LO Freq. (GHz) 1 2 3 4
0.5 26 45 36 43
0.6 24 43 35 36
0.7 22 30 41 30
0.8 22 30 34 28
0.9 24 31 37 31
1 27 32 37 44
1.1 31 28 45 30
LO = 0 dBm
All values in dBc below input LO level measured at RF port
Typical Supply Current vs. Vcc
Vcc1 - 3 (V) Icc Total (mA)
4.75 80
5.00 85
5.25 90
Product will operate over full voltage range shown above.
Absolute Maximum Ratings
RF / IF Input (Vcc1 - 3 = +5V) +26 dBm
LO Drive (Vcc= +5V) +10 dBm
Vcc1 - 3 (LO or IF) 5.5V
Channel Temperature 125 °C
Continuous Pdiss (T = 85°C)
(derate 17.24 mW/°C above 85°C) 0.69W
Thermal Resistance
(channel to ground paddle) 58 °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
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
HMC684LP4 / 684LP4E
v03.0110
BiCMOS MMIC MIXER W/ INTEGRATED
LO AMPLIFIER, 700 - 1000 MHz
Outline Drawing
Part Number Package Body Material Lead Finish MSL Rating Package Marking [3]
HMC684LP4 Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 [1] H684
XXXX
HMC684LP4E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 [2] H684
XXXX
[1] Max peak reow temperature of 235 °C
[2] Max peak reow temperature of 260 °C
[3] 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.
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
HMC684LP4 / 684LP4E
v03.0110
BiCMOS MMIC MIXER W/ INTEGRATED
LO AMPLIFIER, 700 - 1000 MHz
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.
3 RF This pin is matched single-ended 50 Ohm and DC
shorted to ground through a balun.
4 TAP Center tap of secondary side of the internal RF balun.
Short to ground with a zero ohm close to the package.
8, 10, 24 Vcc1, Vcc2,
Vcc3
Power supply voltage. See application circuit
for required external components.
9 LO_BIAS
Adjust the LO buffer current through an external
resistor. See application circuit for required external
components.
16 LO This pin is matched single-ended 50 Ohm and DC
shorted to ground through a balun.
19 G_BIAS External optional bias. See application circuit
for required external components.
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 - 7
HMC684LP4 / 684LP4E
v03.0110
BiCMOS MMIC MIXER W/ INTEGRATED
LO AMPLIFIER, 700 - 1000 MHz
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 Hit-
tite upon request.
Item Description
J1 - J3 SMA Connector
J4 - J7 DC Pin
C1, C19 22 pF Capacitor, 0402 Pkg.
C4 6.8 pF Capacitor, 0402 Pkg.
C7, C8 10 nF Capacitor, 0402 Pkg.
C10, C12, C16, C18 1 nF Capacitor, 0402 Pkg.
C11, C15, C17, C21 0.1 µF Capacitor, 0603 Pkg.
C20 4.7 µF Case A, Tantalum
R2 - R4 0 Ohm Resistor, 0402 Pkg.
R5 68 Ohm Resistor, 0402 Pkg.
R9 390 Ohm Resistor, 0603 Pkg.
T1 1:1 Transformer - Tyco MABACT0039
U1 HMC684LP4(E) Downconverter
PCB [2] 118162 Evaluation PCB
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Arlon 25R, FR4
List of Materials for Evaluation PCB 119920 [1]
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
HMC684LP4 / 684LP4E
v03.0110
BiCMOS MMIC MIXER W/ INTEGRATED
LO AMPLIFIER, 700 - 1000 MHz
Application Circuit
