DA1300 Wideband Amplifier IC HiMARK Technology, Inc. reserves the right to change the product described in this datasheet. All information contained in this datasheet is subject to change without prior notice. HiMARK Technology, Inc. assumes no responsibility for the use of any circuits shown in this datasheet. Description The DA1300 is a general purpose, low-cost RF wideband amplifier IC manufactured on a GaAs Heterojunction Bipolar Transistor (HBT) process. The input and output of the IC are internally matched to 50Ω for convenient cascading. Applications include IF and RF amplification in wireless voice and data communication products from DC to 3GHz. The DA1300 needs minimal external components for DC biasing and is housed in a very small instudstry standard SOT89 surface mount package. Features u u u u u u Block Diagram DC to 3GHz Operation Internally Matched Input and Output 20dB Small Signal Gain 4dB Noise Figure 10mW Linear Output Power Single Positive Power Supply IN 1 GND 2 OUT 3 4 GND Pin Descriptions Number Name Description 1 IN Signal input pin. An external series DC blocking capacitor is required. No DC coupling allowed. 2 GND Ground connection. Keep traces as physically short as possible and connect immediately to ground plane for best performance. Signal output and bias pin. An external series resistor and choke inductor to supply voltage VCC are required for biasing. The resistor provides DC feedback to prevent thermal runaway and fixes the DC current to a desired level by the following equation: 3 OUT ( V CC – VDEVICE ), ICC = ------------------------------------R where VDEVICE is the DC voltage observed at this pin. An external series DC blocking capacitor is required here as well. 4 GND Same as pin 2. Page 1 April 2002 DA1300 Package and Pin Assignment: 3L, SOT89 Dimensions in mm Dimensions in inches Symbol min. max. min. max. A 1.40 1.60 0.055 0.063 b 0.36 0.48 0.014 0.019 b1 0.44 0.56 0.017 0.022 b2 1.50 1.83 0.059 0.072 C 0.35 0.44 0.014 0.017 D 4.40 4.60 0.173 0.181 E 2.29 2.60 0.090 0.102 E1 3.94 4.25 0.155 0.167 e 1.50BSC 0.059BSC e1 3.00BSC 0.118BSC L 0.89 1.20 Page 2 0.035 0.047 April 2002 DA1300 Absolute Maximum Ratings Parameter Symbol Rating Unit Supply Current ICC 45 mA Input RF Power PIN 15 dBm Operating Temperature Range TA –40 to 85 °C –60 to 150 °C Storage Temperature Range Electrical Characteristics VDEVICE = 3.3V, ICC = 35mA, and TA = 25°C unless otherwise noted) Value Parameter Symbol Condition Unit Min. Typ. Max. Power Supply Device Operating Voltage Supply Current VDEVICE 3.3 V ICC 35 mA AC Characteristics Frequency Range DC Gain 3 GHz Frequency = 100MHz 21 dB Frequency = 1GHz 20 dB Frequency = 2GHz 17.5 dB Frequency = 3GHz 15 dB 100 MHz to 2GHz +2 dB Frequency = 2GHz 4.1 dB Input VSWR In a 50Ω system 2:1 Output VSWR In a 50Ω system 2:1 Gain Flatness Noise Figure NF Output IP3 OIP3 Freq = 2GHz + 500kHz, PIN = -18dBm 27 dBm Output P1dB P1dB Frequency = 2GHz 13 dBm Frequency = 2GHz 20 dB Reverse Isolation Page 3 April 2002 DA1300 Evaluation Board Schematic 4 VCC 22Ω 1 2 3 100pF 1µF 100nH 50Ω microstrip 50Ω microstrip RF IN RF OUT 100pF 100pF Page 4 April 2002