Active-Bias InGaP HBT Gain Block
Description
WJA1001
Product Features
• • • • • • • • • •
+5V Active-Bias InGaP HBT Gain Block
Product Description
The WJA1001 is a cascadable gain block that offers high linearity in a low-cost surface-mount package.
At 900 MHz, the WJA1001 typically provides 19 dB gain, +45 dBm OIP3, and +20 dBm P1dB.
The device is housed in a leadfree/green/RoHS-compliant SOT-89 SMT package using a NiPdAu plating to eliminate the possibility of tin whiskering.
The WJA1001 consists of a 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 GHz while drawing very low current.
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.
The WJA1001 is ideal for general purpose applications such as LO buffering or amplification and pre-driver stages within the 50 to 3000 MHz frequency range.
Functional Diagram
GND 4
50 – 3000 MHz 19 dB Gain @ 900MHz +20 dBm P1dB @ 900MHz +45 dBm OIP3 @ 900MHz +5V Single Supply Low current draw (100 mA) Unconditionally stable Internally matched to 50 Ω Robust 1000V ESD, Class 1C Lead-free/green/RoHS-compliant SOT-89 package
1 RF IN
2 GND
3 RF OUT
Function Input Output/Bias Ground
Pin No.
1 3 2, 4
Applications
• • • • GSM, PCS, CDMA, WCDMA WiMAX, WiBro Repeaters, BTS Transceivers RFID
Specifications (1)
Parameter
Operational Bandwidth Test Frequency Gain Input Return Loss Output Return Loss Output P1dB Output IP3 (2) Noise Figure Device Voltage Device Current
Typical Performance (3)
www.
DataSheet.
net/
Units
MHz MHz dB dB dB dBm dBm dB V mA
Min
50 17.
5
Typ
900 19 12 14 +19.
7 +44.
...
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