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
HMC688LP4 / 688LP4E
BiCMOS MMIC MIXER W/ INTEGRATED
LO AMPLIFIER, 2.0 - 2.7 GHz
v01.1010
General Description
Features
Functional Diagram
Electrical Specications,
TA = +25° C, IF = 300 MHz, LO = 0 dBm, Vcc = Vcc1, 2, 3 = +5V, G_Bias = +2.5V*
Typical Applications
Parameter Min. Typ. Max. Units
Frequency Range, RF 2.0 - 2.7 GHz
Frequency Range, LO 1.7 - 2.4 GHz
Frequency Range, IF DC - 700 MHz
Conversion Loss 7.5 10 dB
Noise Figure (SSB) 8 dB
LO to RF Isolation 16 25 dB
LO to IF Isolation 20 27 dB
RF to IF Isolation 25 34 dB
IP3 (Input) 35 dBm
1 dB Compression (Input) 25 dBm
LO Drive Input Level (Typical) -9 to +3 dBm
Supply Current Icc total 140 168 mA
* Unless otherwise noted all measurements performed as downconverter with low side LO & IF = 300 MHz.
The HMC688LP4(E) is Ideal for:
• Cellular/3G & LTE/WiMAX/4G
• Basestations & Repeaters
• GSM, CDMA & OFDM
• Transmitters and Receivers
The HMC688LP4(E) is a high dynamic range passive
MMIC mixer with integrated LO amplier in a 4x4 SMT
QFN package covering 2.0 to 2.7 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 +25 dBm, the RF port will accept a wide range of
input signal levels. Conversion loss is 7.5 dB typical.
The DC to 700 MHz IF frequency response will satisfy
GSM/CDMA transmit or receive frequency plans.
The HMC688LP4(E) is pin for pin compatible with the
HMC689LP4(E) which is a 2.0 - 2.7 GHz mixer with
LO amplier optimized for high side LO applications.
High Input IP3: +35 dBm
Low Conversion Loss: 7.5 dB
Low LO Drive: 0 dBm
Optimized for Low Side LO Input
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
HMC688LP4 / 688LP4E
v01.1010
BiCMOS MMIC MIXER W/ INTEGRATED
LO AMPLIFIER, 2.0 - 2.7 GHz
Conversion Gain vs. Temperature Isolation
Return Loss
Conversion Gain vs. LO Drive
IF Bandwidth (LO= 2.1 GHz) Input P1dB vs. Temperature
-20
-15
-10
-5
0
2 2.2 2.4 2.6 2.8 3
+25 C
+85 C
-40 C
CONVERSION GAIN (dB)
FREQUENCY (GHz)
-50
-40
-30
-20
-10
0
2 2.2 2.4 2.6 2.8 3
RF/IF
LO/RF
LO/IF
ISOLATION (dB)
FREQUENCY (GHz)
-20
-15
-10
-5
0
2 2.2 2.4 2.6 2.8 3
-9 dBm
-6 dBm
-3 dBm
0 dBm
+3 dBm
CONVERSION GAIN (dB)
FREQUENCY (GHz)
-25
-20
-15
-10
-5
0
1.6 1.8 2 2.2 2.4 2.6 2.8 3 3.2 3.4
RF
LO
RETURN LOSS (dB)
FREQUENCY (GHz)
-35
-30
-25
-20
-15
-10
-5
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
IF Return Loss
Conversion Gain
RESPONSE (dB)
FREQUENCY (GHz)
10
15
20
25
30
2 2.2 2.4 2.6 2.8 3
+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
HMC688LP4 / 688LP4E
v01.1010
BiCMOS MMIC MIXER W/ INTEGRATED
LO AMPLIFIER, 2.0 - 2.7 GHz
Input IP3 vs. LO Drive [1]
[1] Two-tone input power = +9 dBm each tone, 1 MHz spacing. [2] Referenced to RF Input Power at 0 dBm.
Input IP3 vs. Temperature [1]
+2RF -2LO Response vs. Temperature [2]
+3RF -3LO Response vs. Temperature [2]
+2RF -2LO Response vs. LO Drive [2]
+3RF -3LO Response vs. LO Drive [2]
20
25
30
35
40
2 2.2 2.4 2.6 2.8 3
+25 C
+85 C
-40 C
IP3 (dBm)
FREQUENCY (GHz)
20
25
30
35
40
2 2.2 2.4 2.6 2.8 3
-9 dBm
-6 dBm
-3 dBm
0 dBm
+3 dBm
IP3 (dBm)
FREQUENCY (GHz)
40
50
60
70
80
90
100
2 2.2 2.4 2.6 2.8
+25 C
+85 C
-40 C
+2RF-2LO RESPONSE (dBc)
FREQUENCY (GHz)
40
50
60
70
80
90
100
2 2.2 2.4 2.6 2.8
-9 dBm
-6 dBm
-3 dBm
0 dBm
+3 dBm
+2RF-2LO RESPONSE (dBc)
FREQUENCY (GHz)
65
70
75
80
85
90
2 2.2 2.4 2.6 2.8
-9 dBm
-6 dBm
-3 dBm
0 dBm
+3 dBm
+3RF-3LO RESPONSE (dBc)
FREQUENCY (GHz)
65
70
75
80
85
90
2 2.2 2.4 2.6 2.8
+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
[1] Two-tone input power = +9 dBm each tone, 1 MHz spacing.
Upconverter Performance
Conversion Gain vs. LO Drive
Upconverter Performance
Input IP3 vs. LO Drive [1]
HMC688LP4 / 688LP4E
v01.1010
BiCMOS MMIC MIXER W/ INTEGRATED
LO AMPLIFIER, 2.0 - 2.7 GHz
Harmonics of LO
MxN Spurious @ IF Port
nLO
mRF 0 1 2 3 4
0 xx 20 26 52 30
1 28 0 41 22 66
2 78 68 63 64 68
3 115 93 99 76 95
4 129 >133 >133 120 121
RF Freq. = 2.5 GHz @ 0 dBm
LO Freq. = 2.2 GHz @ 0 dBm
All values in dBc below IF power level (1RF - 1LO).
nLO Spur @ RF Port
LO Freq. (GHz) 1 2 3 4
1.8 26 29 51 24
1.9 24 27 46 27
2.0 22 23 55 27
2.1 21 20 38 23
2.2 22 19 34 22
2.3 22 18 36 21
2.4 24 17 39 22
2.5 26 16 39 25
2.6 27 16 39 29
2.7 28 18 37 30
LO = 0 dBm
All values in dBc below input LO level measured at RF port.
Typical Supply Current vs. Vcc
Vcc1, 2, 3 (V) Icc total (mA)
4.75 130
5.00 140
5.25 150
Downconverter will operate over full voltage range shown above.
Absolute Maximum Ratings
RF / IF Input (Vcc1, 2, 3 = +5V) +23 dBm
LO Drive (Vcc1, 2, 3 = +5V) +10 dBm
Vcc1, 2, 3 +5.5V
Channel Temperature 125 °C
Continuous Pdiss (T = 85°C)
(derate 36.23 mW/°C above 85°C) 1.45 W
Thermal Resistance
(channel to ground paddle) 27.6 °C/W
Storage Temperature -65 to 150 °C
Operating Temperature -40 to +85 °C
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
-20
-15
-10
-5
0
2 2.2 2.4 2.6 2.8 3
-9 dBm
-6 dBm
-3 dBm
0 dBm
+3 dBm
CONVERSION GAIN (dB)
FREQUENCY (GHz)
20
25
30
35
40
2 2.2 2.4 2.6 2.8 3
-3 dBm
0 dBm
+3 dBm
IP3 (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 - 5
HMC688LP4 / 688LP4E
v01.1010
BiCMOS MMIC MIXER W/ INTEGRATED
LO AMPLIFIER, 2.0 - 2.7 GHz
Outline Drawing
Part Number Package Body Material Lead Finish MSL Rating Package Marking [3]
HMC688LP4 Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 [1] H688
XXXX
HMC688LP4E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 [2] H688
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
HMC688LP4 / 688LP4E
v01.1010
BiCMOS MMIC MIXER W/ INTEGRATED
LO AMPLIFIER, 2.0 - 2.7 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.
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 ohms close to the IC.
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. Apply +2.5V for
nominal performance.
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
HMC688LP4 / 688LP4E
v01.1010
BiCMOS MMIC MIXER W/ INTEGRATED
LO AMPLIFIER, 2.0 - 2.7 GHz
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 1.8 pF Capacitor, 0402 Pkg.
C4 1.5 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, 0402 Pkg.
C19 22 pF Capacitor, 0402 Pkg.
C20 4.7 µF Case A, Tantalum
L1 7.5 nH Inductor, 0402 Pkg.
L2 10 nH Inductor, 0402 Pkg.
R2 - R4 0 Ohm Resistor, 0402 Pkg.
R9 243 Ohm Resistor, 0603 Pkg.
T1 1:1 Transformer - M/A-COM MABACT0039
U1 HMC688LP4(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 120974 [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
HMC688LP4 / 688LP4E
v01.1010
BiCMOS MMIC MIXER W/ INTEGRATED
LO AMPLIFIER, 2.0 - 2.7 GHz
Application Circuit