WJ Communication WJA1021
The WJA1021 is a cascadable gain block that offers high linearity in a low-cost surface-mount package. The device is housed in a leadfree/green/RoHS-compliant industry-standard SOT-89 SMT package using a NiPdAu plating to eliminate the possibility of tin whiskering. The amplifier has been optimized internally to offer very high linearity performance at 1.9 GHz while drawing very low current.- Min Voltage : 4.5V
- Max Voltage : 5.5V
- Channels : 1
- Max Operating Temp : 150°C
Source:
Octopart
| Part No. | WJA1021 |
|---|---|
| Datasheet | WJA1021 Download |
| Manufacturer |  WJ Communication |
| Description | 5V Active-Bias InGaP HBT Gain Block |
| Buy | Stock & Price |
FEATURES
● 50 – 4000 MHz● 17.5 dB Gain @ 1.9GHz
● +19 dBm P1dB @ 1.9GHz
● +37.5 dBm OIP3 @ 1.9GHz
● +5V Single Supply
● Low current draw (90mA)
● Unconditionally stable
● Internally matched to 50 Ω
● Robust 1000V ESD, Class 1C
● Lead-free/green/RoHS-compliant SOT-89 package Product
DESCRIPTION
At 1.9 GHz, the WJA1021 typically provides 17.5 dB gain, +37.5 dBm OIP3, and +19 dBm P1dB. Functional Diagram GND 4 1 2 GND 3 RF OUTAPPLICATIONS
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● GSM, PCS, CDMA, WCDMA WiMAX, WiBro Repeaters, BTS Transceivers RFID The WJA1021 consists of Darlington pair amplifier using a high reliability InGaP/GaAs HBT process technology. The MMIC amplifier is internally matched to 50Ω and only requires DC-blocking capacitors and a bias inductor for operation. An internal active bias is designed to enable stable performance over temperature and allow for operation directly from a +5V supply voltage. The broadband amplifier can be directly applied to various current and next generation wireless technologies such as GSM, CDMA, W-CDMA, WiBro, and WiMAX.
