TGA4953-SL Eval Board TriQuint, TGA4953-SL Eval Board Datasheet - Page 15

• Manufacturer Part Number: TGA4953-SL Eval Board
• Description: Amplifier Modules & Development Tools DC -12GHz 25dBm 5Volts
• Manufacturer: TriQuint

Specifications of TGA4953-SL Eval Board

• Maximum Operating Temperature: + 150 C
• Operating Supply Voltage: 3 V to 10 V
• Product: Amplifier Modules
• Supply Current: 15 mA
• Description/function: Demo board for single op-amps
• For Use With/related Products: TGA4953
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 1011426

General Comments for Production Operation of TGA4953-SL:
1.
2.
Bias ON
1. Mux output can be either Enabled or Disabled
2. Apply Vg1, Vg2, Vctrl1, Vctrl2, and Vdd in any sequence.
3. Enable the output of the MUX
4. Output Swing Adjust: Adjust Vctrl2 slightly positive to increase output swing or adjust
Vctrl slightly negative to decrease the output swing.
5. Crossover Adjust: Adjust Vg2 slightly positive to push the crossover down or adjust
5. Crossover Adjust: Adjust Vg2 slightly positive to push the crossover down or adjust
Vg2 slightly negative to push the crossover up.
Bias Network Initial Conditions -
Vg1= As found during initial alignment
Vg2=-As found during initial alignment
Vctrl1=-0.2V
Vctrl2=As found during initial alignment
Vdd=5V
Bias OFF
Remove Vg1, Vg2, Vctrl1, Vctrl2, and
Vdd in any sequence.
Note: If Vdd is applied first Idd could reach near 400mA.
Due to natural variations in gate voltages observed with GaAs FET amplifiers used internally to
the TGA4953-SL, optimal eye performance is obtained when the gate voltages (Vg1 and Vg2)
are set to control desired drain currents (Id1 and Id2T)
Vc2 feedback circuit recommended for output amplitude correction.
Production - Post Alignment - Bias Procedure
TriQuint Semiconductor Texas : [phone]
Vdd=5V, Vo=6Vamp, CPC=50%
(Hot Pluggable)
Fax [phone] Web: www.triquint.com
Product Datasheet
TGA4953-SL
January 27, 2011
15