Port Diagram
The mixer may be operated as either a downconverter or an upconverter. Use of the RF or IF as the input or output port will depend on the application.

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The MMIQ-1865H is a high linearity, passive MMIC IQ mixer. This is an ultra-broadband mixer spanning 18 to 65 GHz on the RF and LO ports with an IF from DC to 23 GHz. Up to 35 dB of image rejection is available due to the excellent phase and amplitude balance of its on-chip LO quadrature hybrid. Both wire bondable die and connectorized modules are available.
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| Part Number | Description | Package | Connectors | Green Status | Product Lifecycle | Export Classification |
|---|---|---|---|---|---|---|
| MMIQ-1865HUB | Passive GaAs MMIC IQ Mixer | UB | Standard | REACH RoHS | Released | EAR99 |
| MMIQ-1865HCH-2 | Passive GaAs MMIC IQ Mixer | CH | - | REACH RoHS | Released | EAR99 |
| Part Number | Description | Package | Connectors | Green Status | Product Lifecycle | Export Classification |
|---|---|---|---|---|---|---|
| MMIQ-1865HUB | Passive GaAs MMIC IQ Mixer | UB | Standard | REACH RoHS | Released | EAR99 |
| MMIQ-1865HCH-2 | Passive GaAs MMIC IQ Mixer | CH | - | REACH RoHS | Released | EAR99 |
MMIQ-1865HCH-2
Passive GaAs MMIC IQ Mixer
| Revision Code | Revision Date | Comment |
|---|---|---|
| - | 2019-03-01 | Datasheet Initial Release |
| A | 2019-05-01 | Added P1dB Data to Electrical Specifications |
| B | 2019-08-01 | Changed I/Q Max Current Rating |
| C | 2019-10-01 | Updated Max Power Handling |
| D | 2019-10-01 | Corrected Port Designations |
MMIQ-1865HCH-2
Passive GaAs MMIC IQ Mixer
The mixer may be operated as either a downconverter or an upconverter. Use of the RF or IF as the input or output port will depend on the application.
| Port | Function | Description | DC Equivalent Circuit |
|---|---|---|---|
| GND | Ground | CH package ground path is provided through the substrate and ground bond pads. | |
| Port 1 | LO Input | Port 1 is DC open and AC matched to 50Ω over the specified LO frequency range. | |
| Port 2 | Q Input / Output | Port 2 is diode coupled and AC matched to 50Ω over the specified Q port frequency range. | |
| Port 3 | I Input / Output | Port 3 is diode coupled and AC matched to 50Ω over the specified I port frequency range. | |
| Port 4 | RF Input / Output | Port 4 is DC open and AC matched to 50Ω over the specified RF frequency range. |
MMIQ-1865HCH-2
Passive GaAs MMIC IQ Mixer
The Absolute Maximum Ratings indicate limits beyond which damage may occur to the device. If these limits are exceeded, the device may be inoperable or have a reduced lifetime.
| Parameter | Maximum Rating | Unit |
|---|---|---|
| Maximum Operating Temperature | 100 | °C |
| Maximum Storage Temperature | 125 | °C |
| Minimum Operating Temperature | -55 | °C |
| Minimum Storage Temperature | -65 | °C |
| Port 3 DC Current | 30 | mA |
| Port 4 DC Current | 30 | mA |
| Power Handling, at any Port | 26 | dBm |
| Parameter | Details | Rating |
|---|---|---|
| Dimensions | - | 2.67x2.28mm |
The Recommended Operating Conditions indicate the limits, inside which the device should be operated, to guarantee the performance given in Electrical Specifications. Operating outside these limits may not necessarily cause damage to the device, but the performance may degrade outside the limits of the electrical specifications. For limits, above which damage may occur, see Absolute Maximum Ratings.
| Parameter | Min | Nominal | Max | Unit |
|---|---|---|---|---|
| Ambient Temperature | -55 | 25 | 100 | °C |
| RF/IF Input Power | - | - | 12 | dBm |
| LO Input Power | 15 | 18 | 21 | dBm |
MMIQ-1865HCH-2
Passive GaAs MMIC IQ Mixer
The electrical specifications apply at TA=+25°C in a 50Ω system. Typical data shown is for a down conversion application with a +18dBm sine wave LO input. Min and Max limits apply only to our connectorized units and are guaranteed at TA=+25°C. All bare die are 100% DC tested and visually inspected.
| Parameter | Test Conditions | Minimum Frequency (GHz) | Maximum Frequency (GHz) | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|---|
| Conversion Loss 1 | RF/LO = 18 - 65 GHz I = 0.2 - 23 GHz | 18 | 65 | - | 12 | - | dB |
| Conversion Loss 2 | RF/LO = 18 - 65 GHz I = DC – 0.2 GHz | 18 | 65 | - | 11 | - | dB |
| Conversion Loss 3 | RF/LO = 18 - 65 GHz Q = 0.2 - 23 GHz | 18 | 65 | - | 12 | - | dB |
| Conversion Loss 4 | RF/LO = 18 - 65 GHz Q = DC -0.2 GHz | 18 | 65 | - | 11 | - | dB |
| IF Frequency Range | - | - | - | 0 | - | 23 | GHz |
| Image Rejection 5 | RF/LO = 18 - 65 GHz I+Q = DC – 0.2 GHz | 18 | 65 | - | 35 | - | dBc |
| Input 1 dB Gain Compression Point (P1dB), I | - | - | - | - | 12 | - | dBm |
| Input 1 dB Gain Compression Point (P1dB), Q | - | - | - | - | 12.4 | - | dBm |
| Input IP3 6 | RF/LO = 18 - 65 GHz I = DC – 0.2 GHz | 18 | 65 | - | 21 | - | dBm |
| Isolation, LO to I | IF/LO = 18-65 GHz | 18 | 65 | - | 42 | - | dB |
| Isolation, LO to Q | IF/LO = 18-65 GHz | 18 | 65 | - | 32 | - | dB |
| Isolation, RF to I | RF/IF = 18-65 GHz | 18 | 65 | - | 50 | - | dB |
| Isolation, RF to Q | RF/IF = 18-65 GHz | 18 | 65 | - | 56 | - | dB |
| LO Frequency Range | - | - | - | 18 | - | 65 | GHz |
| LO-RF Isolation | RF/LO = 18-65 GHz | 18 | 65 | - | 48 | - | dB |
| Noise Figure 7 | RF/LO = 18 - 65 GHz I = DC – 0.2 GHz | 18 | 65 | - | 11 | - | dB |
| Noise Figure 8 | RF/LO = 18 - 65 GHz Q = DC – 0.2 GHz | 18 | 65 | - | 12 | - | dB |
| Q (Port 2) Frequency Range | - | - | - | 0 | - | 23 | GHz |
| RF Frequency Range | - | - | - | 18 | - | 65 | GHz |
| Parameter | Test Conditions | Minimum Frequency (GHz) | Maximum Frequency (GHz) | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|---|
| Conversion Loss 1 | RF/LO = 18 - 65 GHz I = 0.2 - 23 GHz | 18 | 65 | - | 12 | - | dB |
| Conversion Loss 2 | RF/LO = 18 - 65 GHz I = DC – 0.2 GHz | 18 | 65 | - | 11 | - | dB |
| Conversion Loss 3 | RF/LO = 18 - 65 GHz Q = 0.2 - 23 GHz | 18 | 65 | - | 12 | - | dB |
| Conversion Loss 4 | RF/LO = 18 - 65 GHz Q = DC -0.2 GHz | 18 | 65 | - | 11 | - | dB |
| IF Frequency Range | - | - | - | 0 | - | 23 | GHz |
| Image Rejection 5 | RF/LO = 18 - 65 GHz I+Q = DC – 0.2 GHz | 18 | 65 | - | 35 | - | dBc |
| Input 1 dB Gain Compression Point (P1dB), I | - | - | - | - | 12 | - | dBm |
| Input 1 dB Gain Compression Point (P1dB), Q | - | - | - | - | 12.4 | - | dBm |
| Input IP3 6 | RF/LO = 18 - 65 GHz I = DC – 0.2 GHz | 18 | 65 | - | 21 | - | dBm |
| Isolation, LO to I | IF/LO = 18-65 GHz | 18 | 65 | - | 42 | - | dB |
| Isolation, LO to Q | IF/LO = 18-65 GHz | 18 | 65 | - | 32 | - | dB |
| Isolation, RF to I | RF/IF = 18-65 GHz | 18 | 65 | - | 50 | - | dB |
| Isolation, RF to Q | RF/IF = 18-65 GHz | 18 | 65 | - | 56 | - | dB |
| LO Frequency Range | - | - | - | 18 | - | 65 | GHz |
| LO-RF Isolation | RF/LO = 18-65 GHz | 18 | 65 | - | 48 | - | dB |
| Noise Figure 7 | RF/LO = 18 - 65 GHz I = DC – 0.2 GHz | 18 | 65 | - | 11 | - | dB |
| Noise Figure 8 | RF/LO = 18 - 65 GHz Q = DC – 0.2 GHz | 18 | 65 | - | 12 | - | dB |
| Q (Port 2) Frequency Range | - | - | - | 0 | - | 23 | GHz |
| RF Frequency Range | - | - | - | 18 | - | 65 | GHz |
[1][2][3][4] Measured as an I/Q down converter. (i.e., I and Q powers are not combined)
[5] Image Rejection and Single sideband performance plots are defined by the upper sideband (USB) or lower sideband (LSB) with respect to the LO signal. Plots are defined by which sideband is selected by the external IF quadrature hybrid.
[6] Typical IIP3 measured with I and Q ports combined with an external quadrature hybrid coupler.
[7][8] Mixer Noise Figure typically measures within 0.5 dB of conversion loss for IF frequencies greater than 5 MHz.
MMIQ-1865HCH-2
Passive GaAs MMIC IQ Mixer
I output means that the IF output signal is measured at the I port of the mixer and the Q port is loaded. Q output means the IF output signal is measured at the Q port of the mixer while the I port is loaded.
MMIQ-1865HCH-2
Passive GaAs MMIC IQ Mixer
MMIQ-1865HCH-2
Passive GaAs MMIC IQ Mixer
MMIQ-1865HCH-2
Passive GaAs MMIC IQ Mixer
MMIQ-1865HCH-2
Passive GaAs MMIC IQ Mixer
I output means that the IF output signal is measured at the I port of the mixer and the Q port is loaded. Q output means the IF output signal is measured at the Q port of the mixer while the I port is loaded.
Performance plots for the connectorized module are shown for measurements where directly probed measurements of the die are unavailable. Note that the following measurements include losses from connectors and microstrip traces.
MMIQ-1865HCH-2
Passive GaAs MMIC IQ Mixer
MMIQ-1865HCH-2
Passive GaAs MMIC IQ Mixer
MMIQ-1865HCH-2
Passive GaAs MMIC IQ Mixer
MMIQ-1865HCH-2
Passive GaAs MMIC IQ Mixer