DEMO-ALM-81224 Datasheet, PDF (4/23 Pages) Broadcom Corporation. – High Linearity 1450 – 2750 MHz Variable Gain Amplifier

Typical DC Performance Plots
T_A = 25° C, Vdd = Vdd2 = VBias = 5 V @ 383 mA, RF performance tuned at 2140 MHz using demoboard of Figure 71.
CW operation unless otherwise stated. Dual Carrier Signal uses W-CDMA modulation with 7.5 dB crest factor. Refer
to Figure 77 for CCDF. Single Carrier Signal uses WCDMA Test Tone #1.
2.4
2.1
1.8
1.5
1.2
0.9
0.6
25° C
0.3
-40° C
85° C
0.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
Vcatt (V)
Figure 5. Ic_att Vs Vc_att
0.21
0.18
0.15
0.12
0.09
0.06
25° C
0.03
-40° C
85° C
0.00
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
Vc1 (V)
Figure 6. Idd1 Vs Vc1
Vddbias = 5 V, Vc2 = 0 V, Vdd1 = Vdd2 = 5 V, Vc_att = 0 V
0.35
0.30
0.25
0.20
0.15
0.10
25° C
0.05
-40° C
85° C
0.00
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
Vc2 (V)
Figure 7. Idd2 Vs Vc2
Vddbias = 5 V, Vc1 = 0 V, Vdd1 = Vdd2 = 5 V, Vc_att = 0 V
4