!MAXIM INTEGRATED PRODUCTS
!MAX2644 2.4GHz Low Noise Amplifier

!Table 1. MAX2644 Typical Scattering Parameters (RBIAS=750ohm, VCC=+3.0V, TA=+25°C.)

!FREQ.	      S11 	      S21             S12            S22 	
!(MHz)    Mag	 Phase	  Mag	 Phase	  Mag	 Phase	 Mag	 Phase

# MHZ S MA R 50
2200	0.3372	-79.36	5.1940	170.97	0.0414	157.19	0.2818	-73.71
2250	0.3098	-70.09	5.3156	166.79	0.0445	146.70	0.2204	-67.13
2300	0.3283	-57.20	5.4281	159.22	0.0469	130.62	0.1566	-50.26
2350	0.4005	-50.46	5.4175	150.70	0.0441	108.72	0.1480	-3.96
2400	0.4839	-50.28	5.3346	143.93	0.0349	85.67	0.2795	15.12
2450	0.5443	-56.33	5.0687	136.45	0.0233	58.80	0.4179	11.12
2500	0.5758	-60.09	4.9556	132.16	0.0113	27.74	0.5135	3.28
2550	0.5784	-63.61	4.5952	127.68	0.0041	-38.98	0.5622	-2.66
2600	0.5698	-66.56	4.2364	126.58	0.0063	-110.49	0.5986	-7.45
2650	0.5600	-68.51	4.1376	126.51	0.0103	-128.93	0.6208	-10.43
2700	0.5533	-69.86	4.0729	120.60	0.0133	-140.21	0.6425	-12.93

!Table 2. MAX2644 Typical Scattering Parameters (RBIAS=1.2kohm, VCC=+3.0V, TA=+25°C.)

!FREQ.	      S11 	      S21             S12            S22 	
!(MHz)    Mag	 Phase	  Mag	 Phase	  Mag	 Phase	 Mag	 Phase

# MHZ S MA R 50
2200	0.3482	-67.06	5.2390	-177.33	0.0402	161.53	0.2873	-76.58
2250	0.3121	-58.60	5.3790	178.72	0.0435	151.97	0.2305	-69.42
2300	0.3051	-43.64	5.5982	173.43	0.0452	136.90	0.1735	-54.22
2350	0.3693	-30.34	5.8137	166.48	0.0427	116.57	0.1582	-16.42
2400	0.4769	-29.48	5.8063	158.29	0.0341	95.13	0.2687	6.52
2450	0.5619	-35.54	5.6624	150.06	0.0236	68.36	0.4043	5.00
2500	0.5948	-42.64	5.3015	142.37	0.0117	41.34	0.5030	-2.19
2550	0.5939	-47.58	4.7813	136.67	0.0034	-13.74	0.5602	-8.04
2600	0.5825	-50.94	4.3271	134.58	0.0056	-104.09	0.5952	-12.76
2650	0.5708	-53.14	4.1961	133.48	0.0096	-124.80	0.6215	-15.97
2700	0.5604	-54.35	4.1068	128.01	0.0125	-134.75	0.6434	-18.83


!Table 3. MAX2644 Typical Scattering Parameters (RBIAS=3.9kohm, VCC=+3.0V, TA=+25°C.)

!FREQ.	      S11 	      S21             S12            S22 	
!(MHz)    Mag	 Phase	  Mag	 Phase	  Mag	 Phase	 Mag	 Phase

# MHZ S MA R 50
2200	0.4894	-75.32	3.7368	-173.73	0.0348	156.35	0.2729	-62.97
2250	0.4566	-72.73	3.7718	-177.51	0.0363	147.30	0.2459	-53.68
2300	0.4335	-68.17	3.8855	177.43	0.0369	132.32	0.2211	-41.12
2350	0.4343	-61.46	3.9783	171.34	0.0344	116.21	0.2177	-21.15
2400	0.4695	-57.00	4.0230	165.15	0.0272	95.31	0.2823	-2.41
2450	0.5156	-57.52	4.0087	157.68	0.0179	70.07	0.3924	1.25
2500	0.5403	-61.04	3.8380	149.58	0.0079	42.40	0.4849	-2.71
2550	0.5423	-63.93	3.5140	143.30	0.0018	-46.47	0.5476	-7.30
2600	0.5361	-66.30	3.2048	140.25	0.0055	-112.91	0.5881	-11.35
2650	0.5280	-68.08	3.1204	138.55	0.0100	-132.25	0.6170	-14.57
2700	0.5217	-69.29	3.0860	132.16	0.0121	-133.97	0.6418	-17.44


!Table 4. MAX2644 Typical Noise Parameters (RBIAS=750ohm, VCC=+3.0V, TA=+25°C.)

!Frequency FMIN	|Gopt|	<Gopt	RN/50
!(MHz)   (dB)   (Mag)   (Angle)    
2400	1.725	0.361	66.13	0.4876
2450	1.747	0.360	66.93	0.4952
2500	1.769	0.358	67.72	0.5028

!Table 5. MAX2644 Typical Noise Parameters (RBIAS=1.2Kohm, VCC=+3.0V, TA=+25°C.)

!Frequency FMIN	|Gopt|	<Gopt	RN/50
!(MHz)   (dB)   (Mag)   (Angle)
2400	1.570	0.409	69.84	0.4354
2450	1.589	0.408	70.63	0.4388
2500	1.609	0.406	71.48	0.4484

!Table 6. MAX2644 Typical Noise Parameters (RBIAS=3.9Kohm, VCC=+3.0V, TA=+25°C.)

!Frequency FMIN	|Gopt|	<Gopt	RN/50
!(MHz)   (dB)   (Mag)   (Angle)
2400	1.497	0.510	86.55	0.4116
2450	1.517	0.507	86.50	0.418
2500	1.538	0.504	88.18	0.425