Port Diagram
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Tech Support: [email protected]
Device Overview
General Description
The APM-6849SM is a single stage broadband, low phase noise pre-amplifier designed to provide 11 dB typical gain packaged in a 3 mm QFN with low current consumption. This amplifier uses GaAs HBT technology for low phase noise, and provides industry leading 170 dBc/Hz at 10 kHz offset from carrier frequency. It offers low power dissipation while providing sufficient gain and power to drive a saturated LO driver amplifier such as the APM-7516SM, APM-7098SM, or APM-7099SM.
Features
- -170 dBc/Hz phase noise at 10 kHz offset frequency
- Low DC power consumption
- Positive-only biasing
- No sequencing required
- Unconditionally stable
- Integrated DC blocks – No bias-tees or off-chip blocking required
Applications
- Mobile test and measurement equipment
- Pre-amplifier for saturated LO driver amplifiers
- Suitable as a T3 mixer LO pre-amplifier
- 5G transceivers
- SATCOM
- Radar
Functional Block Diagram
Part Ordering Options
| Part Number | Description | Package | Packing Size | Green Status | Product Lifecycle | Export Classification |
|---|---|---|---|---|---|---|
| APM-6849SM | 2-30 GHz Surface Mount Low Phase Noise Amplifier | QFN | - | REACH RoHS | Released | EAR99 |
| EVAL-APM-6849SM | Evaluation Board, Low Phase Noise 2 – 30 GHz Amplifier | EVAL | - | REACH RoHS | Released | EAR99 |
| APM-6849-TR | Tape and Reel, 2-30 GHz Surface Mount Low Phase Noise Amplifier | QFN | 7" | REACH RoHS | Released | EAR99 |
| Part Number | Description | Package | Packing Size | Green Status | Product Lifecycle | Export Classification |
|---|---|---|---|---|---|---|
| APM-6849SM | 2-30 GHz Surface Mount Low Phase Noise Amplifier | QFN | - | REACH RoHS | Released | EAR99 |
| EVAL-APM-6849SM | Evaluation Board, Low Phase Noise 2 – 30 GHz Amplifier | EVAL | - | REACH RoHS | Released | EAR99 |
| APM-6849-TR | Tape and Reel, 2-30 GHz Surface Mount Low Phase Noise Amplifier | QFN | 7" | REACH RoHS | Released | EAR99 |
APM-6849SM
2-30 GHz Surface Mount Low Phase Noise Amplifier
Table Of Contents
- Device Overview
- Port Configuration and Functions
- Revision History
- Specifications
- Operation
- Mechanical Data
- Footprint Image
- Evaluation Board
Revision History
| Revision Code | Revision Date | Comment |
|---|---|---|
| - | 2019-11-01 | Datasheet Initial Release |
| A | 2020-05-01 | Updated EVAL board outline |
| B | 2020-07-01 | Updated Small Signal Gain Min Spec |
| C | 2020-07-01 | Updated Max Operating Temperature |
| D | 2020-10-01 | Updated Min Specs and Input Power for Saturation |
| E | 2020-11-01 | Updated Thermal Specs and Min Specs, added link |
| F | 2022-01-01 | Updated device description, input power limit, and plots |
APM-6849SM
2-30 GHz Surface Mount Low Phase Noise Amplifier
Port Configuration and Functions
Port Functions
| Port | Function | Description | DC Equivalent Circuit |
|---|---|---|---|
| 11 | RF Output | Pin 11 is the amplifier die RF Output port. It is internally DC blocked and RF matched to 50 Ω. Must have less than 7:1 VSWR when operating with voltage greater than 5V on VC. |  |
| 14 | Collector Supply Port | Pin 14 is the amplifier IC’s DC voltage supply pad. See section 3.6 for performance at different bias conditions. |  |
| 2 | RF Input | This is the amplifier die RF Input port. It is internally DC blocked and RF matched to 50 Ω. | |
| 6 | Base Supply Port | Pin 6 is the current mirror DC voltage supply port that controls the collector current supplied to the amplifier. VB port voltage is proportional to VC port collector current. VB effectively functions as a gain control pin. See section 3.6 for performance at different bias conditions. |  |
| GND | Ground | Pin 11 is the amplifier die RF Output port. It is internally DC blocked and RF matched to 50 Ω. Must have less than 7:1 VSWR when operating with voltage greater than 5V on VC. |  |
APM-6849SM
2-30 GHz Surface Mount Low Phase Noise Amplifier
Specifications
Absolute Maximum Ratings
The Absolute Maximum Ratings indicate limits beyond which damage may occur to the device. If these limits are exceeded, the device may become inoperable or have a reduced lifetime.
| Parameter | Maximum Rating | Unit |
|---|---|---|
| Collector Positive Bias Voltage (Vc) | 7 | V |
| Current Mirror Positive Bias Current (Ib) | 4 | mA |
| Current Mirror Positive Bias Voltage (VB) | 7 | V |
| Maximum Operating Temperature | 85 | °C |
| Maximum Storage Temperature | 150 | °C |
| Max Junction Temperature for MTTF > 1E6 Hours | 125 | °C |
| Minimum Operating Temperature | -40 | °C |
| Minimum Storage Temperature | -65 | °C |
| Output Load VSWR | 7 | - |
| Positive Bias Current (Ic) | 90 | mA |
| RF Input Power 1 | 16 | dBm |
| θJC | 78 | ºC/W |
[1] Maximum RF input power for instantaneous failure. Reliable operation requires RF input power limited to maintain Positive Bias Current Ic within reliable limits.
Package Information
| Parameter | Details | Rating |
|---|---|---|
| Dimensions | - | 3 x 3 mm |
| Moisture Sensitivity Level | - | MSL 1 |
Recommended Operating Conditions
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 | -40 | 25 | 85 | °C |
| Positive DC Voltage (VC) | 3 | 5 | 6 | V |
| Positive DC Current (Ic) | 8 | 21 | 32 | mA |
| Positive DC Current Mirror Voltage (VB) | 3 | 5 | 6 | V |
| Positive DC Current Mirror Current (Ib) | 0.9 | 2 | 2.6 | mA |
APM-6849SM
2-30 GHz Surface Mount Low Phase Noise Amplifier
Electrical Specifications
The electrical specifications apply at TA=+25°C in a 50Ω system. QFNs are 100% RF tested.
| Parameter | Test Conditions | Minimum Frequency (GHz) | Maximum Frequency (GHz) | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|---|
| Current Consumption 1 | 5V/4V | - | - | - | 13 | - | mA |
| Current Consumption 2 | 5V/5V | - | - | - | 21 | - | mA |
| Current Consumption 3 | 5V/6V | - | - | - | 32 | - | mA |
| Input IP3 | 5V/5V bias, -15 dBm Input Power | 2 | 30 | - | 11 | - | dBm |
| Input Return Loss | 5V/5V bias, -25 dBm Input Power | 2 | 20 | - | 15 | - | dB |
| Input Return Loss | 5V/5V bias, -25 dBm Input Power | 20 | 30 | - | 15 | - | dB |
| Noise Figure | 5V/5V bias, -25 dBm Input Power | 2 | 26.5 | - | 5 | - | dB |
| Output IP3 | 5V/5V bias, -15 dBm Input Power | 2 | 30 | - | 20 | - | dBm |
| Output P1dB | 5V/5V bias | 20 | 30 | - | 14 | - | dBm |
| Output P1dB | 5V/5V bias | 2 | 20 | - | 20 | - | dBm |
| Output Return Loss | 5V/5V bias, -25 dBm Input Power | 20 | 30 | - | 8 | - | dB |
| Output Return Loss | 5V/5V bias, -25 dBm Input Power | 2 | 20 | - | 16 | - | dB |
| Phase Noise @ 10 kHz Offset | 5V/5V bias, +9 dBm Input power | 2 | 30 | - | -170 | - | dBc/Hz |
| Reverse Isolation | 5V/5V bias, -25 dBm Input Power | 2 | 30 | - | 42 | - | dB |
| Saturated Output Power | 5V/5V bias, Ic=90mA | 2 | 20 | - | 21 | - | dBm |
| Small Signal Gain | 5V/5V bias, -25 dBm Input Power | 20 | 30 | - | 7.5 | - | dB |
| Small Signal Gain | 5V/5V bias, -25 dBm Input Power | 2 | 20 | 8 | 11 | - | dB |
| Parameter | Test Conditions | Minimum Frequency (GHz) | Maximum Frequency (GHz) | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|---|
| Current Consumption 1 | 5V/4V | - | - | - | 13 | - | mA |
| Current Consumption 2 | 5V/5V | - | - | - | 21 | - | mA |
| Current Consumption 3 | 5V/6V | - | - | - | 32 | - | mA |
| Input IP3 | 5V/5V bias, -15 dBm Input Power | 2 | 30 | - | 11 | - | dBm |
| Input Return Loss | 5V/5V bias, -25 dBm Input Power | 2 | 20 | - | 15 | - | dB |
| Input Return Loss | 5V/5V bias, -25 dBm Input Power | 20 | 30 | - | 15 | - | dB |
| Noise Figure | 5V/5V bias, -25 dBm Input Power | 2 | 26.5 | - | 5 | - | dB |
| Output IP3 | 5V/5V bias, -15 dBm Input Power | 2 | 30 | - | 20 | - | dBm |
| Output P1dB | 5V/5V bias | 20 | 30 | - | 14 | - | dBm |
| Output P1dB | 5V/5V bias | 2 | 20 | - | 20 | - | dBm |
| Output Return Loss | 5V/5V bias, -25 dBm Input Power | 20 | 30 | - | 8 | - | dB |
| Output Return Loss | 5V/5V bias, -25 dBm Input Power | 2 | 20 | - | 16 | - | dB |
| Phase Noise @ 10 kHz Offset | 5V/5V bias, +9 dBm Input power | 2 | 30 | - | -170 | - | dBc/Hz |
| Reverse Isolation | 5V/5V bias, -25 dBm Input Power | 2 | 30 | - | 42 | - | dB |
| Saturated Output Power | 5V/5V bias, Ic=90mA | 2 | 20 | - | 21 | - | dBm |
| Small Signal Gain | 5V/5V bias, -25 dBm Input Power | 20 | 30 | - | 7.5 | - | dB |
| Small Signal Gain | 5V/5V bias, -25 dBm Input Power | 2 | 20 | 8 | 11 | - | dB |
[1][2][3] Bias conditions for Ic and Ib tested with no RF input power. See performance plots for DC current vs. RF power. Bias conditions presented as VC/VB.
APM-6849SM
2-30 GHz Surface Mount Low Phase Noise Amplifier
Typical Performance Plots
APM-6849SM measurements taken in EVAL-APM-6849 evaluation board.
APM-6849SM
2-30 GHz Surface Mount Low Phase Noise Amplifier
APM-6849SM
2-30 GHz Surface Mount Low Phase Noise Amplifier
Connectorized Module APM-6849PA Performance Plots
Surface mount module APM-6849SM performance is expected to be similar to connectorized module performance.
APM-6849SM
2-30 GHz Surface Mount Low Phase Noise Amplifier
Time Domain Plots
Fast rise time is desirable for linear T3 mixer operation. ( 5GHz on the left and 10GHz on the right )
APM-6849SM
2-30 GHz Surface Mount Low Phase Noise Amplifier
Application Circuit
APM-6849SM
2-30 GHz Surface Mount Low Phase Noise Amplifier
Mechanical Data
APM-6849SM
2-30 GHz Surface Mount Low Phase Noise Amplifier
Footprint Image
Download : Footprint Drawing
APM-6849SM
2-30 GHz Surface Mount Low Phase Noise Amplifier
Evaluation Board - Outline Drawing
