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| DA2709 Wideband Amplifier Advance Information 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 DA2709 is a general purpose, low-cost RF wideband amplifier IC. The input and output of the IC are internally matched to 50 for convenient cascading. Applications include IF and RF amplification in wireless voice and data communication products from DC to 3GHz. The DA2709 requires minimal external components for DC bias. Features u u u u u u DC to 3GHz Operation Internally Matched Input and Output 22dB Small Signal Gain @2GHz P1dB = 8dBm @2GHz Single Positive Power Supply SOT363 surface-mount package Pin Out Diagram GND 4 in a 60H GND 5 IN 6 Description Pr el im Pin Descriptions Number 1 2 Name VCC GND 3 4 5 6 OUT GND GND IN Same as pin 2. Same as pin 2. Power supply pin. An external bypass capacitor is required. Ground connection. Keep PCB traces as short as possible and connect immediately to ground plane for best performance. Signal output and bias pin. An external choke inductor L to VCC is required for biasing. An external series DC blocking capacitor is also required. Signal input pin. An external series DC blocking capacitor is required. No DC coupling allowed. Page 1 ry 3 OUT 2 GND 1 VCC February 2002 Advance Information DA2709 Package and Pin Assignment: 6L, SOT363 Pr el im Symbols A MIN. --A1 A2 A3 b 0.05 0.850 0.15 0.15 0.10 0.10 1.90 -b1 C -C1 D E E1 L e1 e 1.25 0.26 Dimensions in mm NOM. Page 2 in a MAX. 1.00 0.10 0.90 0.075 0.88 0.50 BSC 0.30 0.25 0.20 0.15 2.10 0.20 0.127 2.00 2.10 BSC 1.30 0.36 1.30 BSC 0.65 BSC 0.10 1.35 0.46 ry February 2002 Advance Information DA2709 Absolute Maximum Ratings Parameter Supply Current Input RF Power Operating Temperature Range Storage Temperature Range Symbol ICC PI N TA Rating 50 5 -40 to 85 -60 to 150 Unit mA dBm C C Electrical Characteristics (V CC = 5V, I CC = 25mA, and TA = 25C unless otherwise noted) Parameter Power Supply Supply Voltage Supply Current AC Characteristics Frequency Range Gain VCC ICC Symbol Condition in a Min. Typ. Applied to pins 4 & 6 5 25 DC 22 22 21 +1 4 10 10 8 8 31 Frequency = 1GHz Frequency = 2GHz Frequency = 3GHz 100MHz to 1.8GHz Frequency = 1GHz In a 50 system In a 50 system Frequency = 1GHz Frequency = 2GHz Frequency = 1GHz Pr el im (output connected through bias tee) Gain Flatness Noise Figure NF Input Return Loss Output Return Loss Output P1dB P1dB Reverse Isolation Page 3 ry Value Unit Max. V mA 3 GHz dB dB dB dB dB dB dB dBm dBm dB February 2002 Advance Information DA2709 Evaluation Board Schematic 3 2 50 microstrip RF IN 1000pF 4 5 6 1000pF 50 microstrip RF OUT L 1 V CC 1000pF Inductor L Selection Guide Value 300nH 100nH 10nH Operating Frequency 10MHz or higher 100MHz or higher 1GHz or higher Pr el im Page 4 February 2002 in a ry Advance Information DA2709 Typical Characteristics (TA = 25C ) SUPPLY CURRENT vs. AMBIENT TEMPERATURE 50 Vcc=5V Supply Current Icc (mA) 40 30 20 10 0 -60 -40 -20 0 Ambient Temperature T A ( C ) Pr el im 50 T A= 2 5 C o Supply Current vs. Voltage Supply Current Icc (mA) 40 30 20 10 0 0 1 2 Supply Voltage Vcc (V) Page 5 in a 20 40 60 80 o 3 4 ry 100 5 6 February 2002 Advance Information DA2709 POWER GAIN vs. FREQUENCY 25 Icc=25mA Power Gain (dB) TA=-40 oC TA =25 C 20 o TA =85oC 15 0.1 Frequency (GHz) Pr el im -30 Icc=25mA -35 TA =-40 C o ISOLATION vs. FREQUENCY TA =25 C o Isolation (dB) -40 -45 -50 0.1 1.0 Frequency (GHz) Page 6 in a 1.0 TA =85 C o ry February 2002 Advance Information DA2709 INPUT RETURN LOSS vs. FREQUENCY 0 Icc=25mA Input Return Loss (dB) -10 -20 -30 -40 0.1 Frequency (GHz) Pr el im 0 Icc=25mA OUTPUT RETURN LOSS vs. FREQUENCY Output Return Loss (dB) -10 -20 -30 -40 0.1 1.0 Frequency (GHz) Page 7 in a 1.0 TA=85oC TA =25oC TA =-40oC ry TA =85oC TA =-40oC TA=25oC February 2002 Advance Information DA2709 POWER GAIN vs. FREQUENCY 25 TA =25 C o Icc=28mA Power Gain (dB) Icc=25mA Icc=22mA 20 15 0.1 Frequency (GHz) Pr el im -30 TA =25 C o ISOLATION vs. FREQUENCY -35 Icc=28mA Icc=25mA Isolation (dB) -40 -45 -50 0.1 1.0 Frequency (GHz) Page 8 in a 1.0 Icc=22mA ry February 2002 Advance Information DA2709 INPUT RETURN LOSS vs. FREQUENCY 0 TA =25oC Input Return Loss (dB) -10 -20 Icc=28mA Icc=22mA -30 Icc=25mA -40 0.1 Frequency (GHz) Pr el im 0 TA =25 C o OUTPUT RETURN LOSS vs. FREQUENCY Output Return Loss (dB) -10 -20 Icc=22mA Icc=25mA -30 -40 0.1 1.0 Frequency (GHz) Page 9 in a 1.0 Icc=28mA ry February 2002 |
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