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WJA1021 Dataheets PDF



Part Number WJA1021
Manufacturers TriQuint Semiconductor
Logo TriQuint Semiconductor
Description Active-Bias InGaP HBT Gain Block
Datasheet WJA1021 DatasheetWJA1021 Datasheet (PDF)

WJA1021 Product Features • • • • • • • • • • +5V Active-Bias InGaP HBT Gain Block Product 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, +36.5 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. Functional Diagram GND 4 50 – 4000 M.

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WJA1021 Product Features • • • • • • • • • • +5V Active-Bias InGaP HBT Gain Block Product 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, +36.5 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. Functional Diagram GND 4 50 – 4000 MHz 17.5 dB Gain @ 1.9GHz +19 dBm P1dB @ 1.9GHz +36.5 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 1 2 GND 3 RF OUT Applications • • • • 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 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 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 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. RF IN Function Input Output/Bias Ground Pin No. 1 3 2, 4 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) Units MHz MHz dB dB dB dBm dBm dB V mA Min 50 16.1 Typ 1900 17.5 -15 -10 +19 +36.5 6.3 5 90.5 Max 4000 19.1 Parameter www.DataSheet.net/ Units MHz dB dB dB dBm dBm dB 200 19.5 -12 -20 +20.2 +36.9 5.3 Typical 900 18.4 -19 -13 +20.1 +38.9 5.6 1900 16.7 -29 -10 +19 +36.6 6.3 2100 16.4 -25 -10 +18 +36 6.6 +33.5 Frequency S21 S11 S22 Output P1dB Output IP3 (2) Noise Figure 3. Listed typical performance parameters measured on evaluation board. 80 100 1. Test conditions: 25 ºC, Supply Voltage = +5 V, 50 Ω System. S-parameters and 3OIP measured at device pins. All other specifications measured on evaluation board. 2. 3OIP measured with two tones at an output power of 4 dBm/tone separated by 1 MHz. The suppression on the largest IM3 product is used to calculate the 3OIP using a 2:1 rule. Not Recommended For New Designs Recommended replacement parts: TQP3M9008 Absolute Maximum Rating Parameter Storage Temperature Supply Voltage Thermal Resistance, Rth Junction Temperature Input Power Rating -55 to +150 °C +6.5 V 78.8 °C / W 150 °C +24 dBm Ordering Information Part No. WJA1021 Description +5V Active Bias InGaP HBT Gain Block (lead-free/green/RoHS-compliant SOT-89 Package) Operation of this device above any of these parameters may cause permanent damage. Standard tape / reel size = 1000 pieces on a 7″ reel Specifications and information are subject to change without notice Page 1 of 4 June 2011 Datasheet pdf - http://www.DataSheet4U.co.kr/ TriQuint Semiconductor, Inc • Phone +1-503-615-9000 • FAX: +1-503-615-8900 • e-mail: [email protected] • Web site: www.TriQuint.com WJA1021 Gain vs. Frequency +5V Active-Bias InGaP HBT Gain Block Typical Evaluation Board RF Performance Supply Bias = +5V, Icc = 90 mA Return Loss vs. Frequency 0 -5 N Fvs. Frequency 10 8 6 4 2 0 25 20 15 10 5 T=25°C S11, S22 (dB) -10 -15 -20 -25 -30 S11 S22 G a in (d B ) NF (dB) -40C +25C +85C -40C 0 0 1000 +25C +85C -35 2000 Frequency (MHz) 3000 4000 0 1000 2000 Frequency (MHz) 3000 4000 0 1000 Frequency(M H z) 2000 3000 OIP3 vs. Frequency 45 40 Pout=3 dBm/tone P1dB vs. Frequency 22 20 O IP 3 (d B m ) 35 30 25 20 P 1 d B (d B m ) 18 16 14 12 +25°C 15 0 1000 -40°C 2000 +85°C 10 3000 4000 +25°C 0 www.DataSheet.net/ -40°C 2000 +85°C 3000 4000 1000 Frequency (MHz) Frequency (MHz) Specifications and information are subject to change without notice TriQuint Semiconductor, Inc • Phone +1-503-615-9000 • FAX: +1-503-615-8900 • e-mail: [email protected] • Web site: www.TriQuint.com Page 2 of 4 June 2011 Datasheet pdf - http://www.DataSheet4U.co.kr/ WJA1021 +5V Active-Bias InGaP HBT Gain Block Application Circuit Vcc =+5.00V Icc = 90 mA R4 0Ω C3 Bypass Capacitor RF IN L1 RF Choke RF OUT WJA1021 C1 Blocking Capacitor C2 Blocking Capacitor For optimal OIP3 performance, the ground plane to the left and right side around the backside paddle of the WJA1021 should be removed as shown in the above PCB layout. . Recommended Component Values (1) Ref. Name Value / Type L1 470 nH ferrite core wire wound inductor .


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