MAX2644EXT-T Maxim Integrated Products, MAX2644EXT-T Datasheet - Page 6

• Manufacturer Part Number: MAX2644EXT-T
• Description: RF Amplifier 2.4GHz SiGe, High IP 3 Low-Noise Amplifie
• Manufacturer: Maxim Integrated Products
• Type: General Purpose Amplifierr

Specifications of MAX2644EXT-T

• Operating Frequency: 2500 MHz
• Noise Figure: 2 dB at 2450 MHz
• Operating Supply Voltage: 3 V, 5 V
• Supply Current: 9.7 mA
• Maximum Power Dissipation: 245 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SC-70
• Minimum Operating Temperature: - 40 C
• Number Of Channels: 1 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Standby mode is achieved by disconnecting BIAS as
shown in Figure 1. Avoid capacitance at the BIAS pin
by connecting the bias resistor from BIAS to the switch.
A properly designed PC board is essential to any
RF/microwave circuit. Use controlled impedance lines
on all high-frequency inputs and outputs. Bypass with
decoupling capacitors located close to the device V
2.4GHz SiGe,
High IP3 Low-Noise Amplifier
Table 1. MAX2644 Typical Scattering Parameters
(R
Table 2. MAX2644 Typical Scattering Parameters
(R
6
FREQ.
FREQ.
BIAS
BIAS
(MHz)
(MHz)
2200
2250
2300
2350
2400
2450
2500
2550
2600
2650
2700
_______________________________________________________________________________________
2200
2250
2300
2350
2400
2450
2500
2550
2600
2650
2700
= 750Ω, V
= 1.2kΩ, V
0.3482
0.3121
0.3051
0.3693
0.4769
0.5619
0.5948
0.5939
0.5825
0.5708
0.5604
0.3372
0.3098
0.3283
0.4005
0.4839
0.5443
0.5758
0.5784
0.5698
0.5600
0.5533
MAG
MAG
S11
S11
CC
CC
S11 PHASE
(DEGREES)
S11 PHASE
(DEGREES)
= +3.0V, T
= +3.0V, T
-67.06
-58.60
-43.64
-30.34
-29.48
-35.54
-42.64
-47.58
-50.94
-53.14
-54.35
-79.36
-70.09
-57.20
-50.46
-50.28
-56.33
-60.09
-63.61
-66.56
-68.51
-69.86
Layout Issues
A
A
5.2390
5.3790
5.5982
5.8137
5.8063
5.6624
5.3015
4.7813
4.3271
4.1961
4.1068
5.1940
5.3156
5.4281
5.4175
5.3346
5.0687
4.9556
4.5952
4.2364
4.1376
4.0729
MAG
MAG
S21
S21
= +25°C.)
= +25°C.)
Standby
S21 PHASE
(DEGREES)
S21 PHASE
(DEGREES)
CC
-177.33
178.72
173.43
166.48
158.29
150.06
142.37
136.67
134.58
133.48
128.01
170.97
166.79
159.22
150.70
143.93
136.45
132.16
127.68
126.58
126.51
120.60
pin. For long V
additional decoupling capacitors. These additional
capacitors can be located farther away from the device
package. Proper grounding of the GND pins is essen-
tial. If the PC board uses a topside RF ground, connect
it directly to all GND pins. For a board where the
ground plane is not on the component layer, the best
technique is to connect the GND pins to the board with
a plated through-hole located close to the package.
0.0402
0.0435
0.0452
0.0427
0.0341
0.0236
0.0117
0.0034
0.0056
0.0096
0.0125
0.0414
0.0445
0.0469
0.0441
0.0349
0.0233
0.0113
0.0041
0.0063
0.0103
0.0133
MAG
MAG
S12
S12
CC
S12 PHASE
(DEGREES)
S12 PHASE
(DEGREES)
-104.09
-124.80
-134.75
-110.49
-128.93
-140.21
161.53
151.97
136.90
116.57
157.19
146.70
130.62
108.72
-13.74
-38.98
95.13
68.36
41.34
85.67
58.80
27.74
lines, it may be necessary to add
0.2873
0.2305
0.1735
0.1582
0.2687
0.4043
0.5030
0.5602
0.5952
0.6215
0.6434
0.2818
0.2204
0.1566
0.1480
0.2795
0.4179
0.5135
0.5622
0.5986
0.6208
0.6425
MAG
MAG
S22
S22
S22 PHASE
(DEGREES)
(DEGREES)
S22 PHASE
-76.58
-69.42
-54.22
-16.42
-12.76
-15.97
-18.83
-73.71
-67.13
-50.26
-10.43
-12.93
15.12
11.12
-2.19
-8.04
-3.96
-2.66
-7.45
6.52
5.00
3.28