WJA1021

Bandwidth :
Mounting Style : SMD/SMT
Maximum Operating Temperature : + 150 C
Package / Case : SOT-89
Packaging : Reel
Operating Supply Voltage : 5 V
Supply Current : 90 mA
Operating Frequency : 50 MHz to 4000 MHz
Type : Gain Amplifier
Noise Figure : 6.3 dB at 1.9 GHz
Output Intercept Point : 37.4 dBm


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
• Robust 1000V ESD, Class 1C
• Lead-free/green/RoHS-compliant SOT-89 package


Application

• GSM, PCS, CDMA, WCDMA
• WiMAX, WiBro
• Repeaters, BTS Transceivers
• RFID


Pinout




Specifications

Parameter	Rating
Storage Temperature Supply Voltage Thermal Resistance, Rth Junction Temperature Input Power	-55 to +150 +6.5 V 78.8 / W 150 +24 dBm

Operation of this device above any of these parameters may cause permanent damage.


Description

The WJA1021 is a cascadable gain block that offers high linearity in a low-cost surface-mount package. At 1.9 GHz, the WJA1021 typically provides 17.5 dB gain, +37.5 dBm OIP3, and +19 dBm P1dB. 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 WJA1021 consists of Darlington pair amplifier using a high reliability InGaP/GaAs HBT process technology. The amplifier has been optimized internally to offer very high linearity performance at 1.9 GHz while drawing very low current. The MMIC amplifier is internally matched to 50 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.

The WJA1021 is ideal for general purpose applications such as LO buffering or amplification and pre-driver stages within the 50 to 4000 MHz frequency range.