ADAR1000 Functional Replacement: GX1001 5–18 GHz Four-Channel Beamformer
GX1001 is a broadband, half-duplex beamforming IC covering 5 GHz to 18 GHz. Compared with the 8 GHz to 16 GHz range of ADAR1000, GX1001 extends operation across additional C-, X- and Ku-band frequencies.
The device provides comparable beamforming functions at the system level but is not a pin-to-pin replacement. Migration from ADAR1000 requires changes to the schematic, PCB, power architecture, RF interfaces and control software.
GX1001 as a Functional ADAR1000 Replacement
GX1001 integrates four transmit channels, four receive channels and a four-way RF splitter/combiner network. Each channel provides independent phase and amplitude adjustment for beam steering, calibration and amplitude tapering.
It can be evaluated as an ADAR1000 functional replacement or selected for new broadband phased-array systems requiring 5–18 GHz coverage, fast beam switching and external RF front-end control.
Hardware and Software Changes Required for ADAR1000 Migration
GX1001 and ADAR1000 support similar functions, including 4T4R half-duplex operation, 360° phase control, at least 31 dB amplitude adjustment, SPI configuration, beam memory, power detection and external PA, LNA and T/R switch control.
However, the two devices use different packages, footprints, pin definitions, power arrangements and register maps. GX1001 cannot be installed directly on an existing ADAR1000 PCB.
Replacing ADAR1000 with GX1001 may require redesign of the schematic, PCB layout, RF matching, power supply and thermal structure, together with modifications to the SPI driver and beam-control software.
GX1001 vs ADAR1000: Key Specification Comparison
|
Specification |
ADAR1000 |
GX1001 |
|
Device Type |
X/Ku-Band Half-Duplex Beamformer |
C/X/Ku-Band Half-Duplex Beamformer |
|
Operating Frequency |
8–16 GHz |
5–18 GHz |
|
Transmit / Receive Channels |
4T / 4R |
4T / 4R |
|
Four-Way Splitter/Combiner |
Integrated |
Integrated |
|
Phase Adjustment Range |
360° |
360° |
|
Phase Resolution |
2.8° |
7-Bit, 2.8° |
|
Amplitude Adjustment Range |
≥31 dB |
31.5 dB |
|
Amplitude Resolution |
≤0.5 dB |
6-Bit, 0.5 dB |
|
Typical Transmit Gain |
16–21 dB at Selected Frequencies |
12 dB |
|
Typical Transmit Output P1dB |
10 dBm |
10 dBm |
|
Typical Transmit Saturated Power |
13–14 dBm |
15 dBm |
|
Typical Receive Gain |
7–10 dB at Selected Frequencies |
6 dB |
|
Typical Receive Input P1dB |
−16 to −15 dBm |
−17 dBm |
|
Beam-State Memory |
121 Beam Positions |
Integrated |
|
Integrated Power Detectors |
4 |
4 |
|
Temperature Sensor and ADC |
Integrated, 8-Bit ADC |
Integrated, 8-Bit ADC |
|
Typical Beam Switching Time |
20 ns |
10 ns |
|
SPI Interface |
Four-Wire, Up to 25 MHz |
Four-Wire, Up to 50 MHz |
|
External PA/LNA/Switch Control |
Yes |
Yes |
|
Operating Temperature |
−40°C to +85°C |
−55°C to +125°C |
|
Package |
LGA-88, 7 mm × 7 mm |
WLCSP-294, 6.20 mm × 6.05 mm |
|
Pin-to-Pin Compatible |
— |
No |
|
PCB Redesign Required |
— |
Yes |
|
Power and RF Verification Required |
— |
Yes |
|
Software Modification Required |
— |
Yes |
Broadband Beamforming Performance and Applications
Key GX1001 features include:
l 5 GHz to 18 GHz broadband operation
l Four transmit and four receive channels
l Integrated four-way RF splitter/combiner
l 7-bit phase control with 2.8° resolution
l 6-bit amplitude control with 0.5 dB resolution
l Typical transmit gain of 12 dB
l Typical transmit output P1dB of 10 dBm
l Typical transmit saturated power of 15 dBm
l Typical receive gain of 6 dB
l Typical receive input P1dB of −17 dBm
l Integrated beam memory and four power detectors
l Integrated temperature sensor and 8-bit ADC
l Typical beam switching time of 10 ns
l Four-wire SPI interface operating at up to 50 MHz
l Control outputs for external PAs, LNAs and T/R switches
l −55°C to +125°C operating temperature range
GX1001 is suitable for phased-array radar, satellite communication, C-/X-/Ku-band phased-array antennas and broadband detection and monitoring systems.
Replacement Evaluation and Technical Support
GXSC can provide samples and technical support for ADAR1000 functional replacement projects, including RF evaluation, PCB redesign, power architecture, SPI migration and beam-control configuration.
Request GX1001 Datasheet and Samples
Contact GXSC to request the GX1001 datasheet, samples, quotation or technical support for your ADAR1000 replacement evaluation or new broadband phased-array design.
mail