CHA2353-99F 46–52GHz LNA with 30dB AGC | Price & RFQ
The UMS CHA2353-99F is a three-stage millimeter-wave low noise amplifier developed for receivers operating from 46GHz to 52GHz. Unlike a conventional fixed-gain LNA, it combines low-noise amplification with a wide adjustable gain range, allowing the receiver to respond to changing signal levels without adding a separate RF attenuator or variable-gain stage.
The device is manufactured using a GaAs pHEMT process evaluated for space applications and is supplied as a compact bare die. UMS identifies commercial and space communication systems as its main target markets.
Key Specifications
| Parameter | Value |
| Manufacturer | UMS |
| Part Number | CHA2353-99F |
| Product Type | Low Noise Amplifier with AGC |
| Frequency Range | 46–52GHz |
| Small-Signal Gain | 24dB typical |
| Adjustable Gain Range | 30dB |
| Noise Figure | 3.5dB typical |
| Input Return Loss | 13dB typical |
| Output Return Loss | 15dB typical |
| Output P1dB | 9dBm typical |
| Drain Voltage | 3.3V typical |
| Drain Current | 55mA typical |
| Semiconductor Technology | GaAs pHEMT |
| RF Protection | ESD protection on RF and DC pads |
| Product Form | Bare Die |
| Die Size | 1.97 × 1.17mm |
| Die Thickness | 70µm |
Typical Applications
The CHA2353-99F is suitable for receiver systems that require low-noise amplification and gain adjustment within the 46–52GHz frequency range.
Typical applications include:
Satellite communication receivers
Space communication payloads
V-Band point-to-point radio systems
Millimeter-wave receiver modules
Phased-array receiving front ends
Frequency converters
RF test and measurement equipment
Multichannel communication receivers
The adjustable gain function is particularly useful in systems where received signal strength changes due to link distance, antenna alignment or propagation conditions.
CHA2353-99F Price and RFQ
Pricing and availability depend on the required quantity and current factory lead time.
Contact DataStorageIC for CHA2353-99F price, datasheet, availability, lead time and RFQ support.
Frequently Asked Questions
1. Can the CHA2353-99F replace an external RF attenuator?
Its integrated gain control may reduce the need for a separate attenuator, but the final configuration depends on the receiver’s required dynamic range and gain-control architecture.
2. Is the 30dB AGC function automatic?
No. The gain is adjusted through an external gate-control voltage or system control circuit.
3. Is the CHA2353-99F supplied in a package?
No. It is supplied as a bare die under the ordering reference CHA2353-99F/00.
4. Is the CHA2353-99F suitable for space applications?
UMS states that the GaAs pHEMT process used for the device has been evaluated for space applications. Project-specific qualification and screening should be confirmed separately.
5. What information is needed for a CHA2353-99F RFQ?
Provide the required quantity, delivery date, shipping destination and any lot-control, screening or traceability requirements.
