TGA4811的供电电路 MMHEMT: TGA4811.pdf

有谁用过TGA-4811这款放大器，其加电时序电路如何实现：
NOTE: To protect the device, this MMHEMT MMIC will be biased differently than typical
PHEMT devices
NOTE: Be sure proper ESD protection is in place

A. If biasing Drain through Vd DC port
1. Leave Vg at 0V
2. Increase Vd to 1 V
3. Adjust Vg to reach 50 mA
4. Increase Vd to 4.5 V
5. Repeat steps 3 and 4 until correct bias is reached (i.e. Vd = 4.5 V, Id = 50mA)
6. To Bias-down device, turn Vg to 0V and decrease Vd to 0V


B. If Biasing Drain through Bias Tee and RF port
1. Leave Vg at 0V
2. Increase Vd to 1 V
3. Adjust Vg to reach 50 mA
4. Increase Vd to 2 V
5. Repeat steps 3 and 4 until correct bias is reached (i.e. Vd = 2 V, Id = 50mA)
6. To Bias-down device, turn Vg to 0V and decrease Vd to 0V