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Low Noise Amplifier, 100 - 600 MHz
V3.00
AM-191
Features
n n n
FP-3
2.5 dB Typical Midband Noise Figure +23 dBm Typical 1 dB Compression Point +32 dBm Typical Third Order Intercept
Description
M/A-COM’s AM-191 is a coupler feedback amplifier with high intercept and compression points. The use of coupler feedback minimizes noise figure and current in a high intercept amplifier. This amplifier is packaged in a flatpack. Due to the internal power dissipation the thermal rise minimized. The ground plane on the PC board should be configured to remove heat from under the package. AM-191 is ideally suited for use where a low noise, high reliability amplifier is required.
Absolute Maximum Ratings 1
Parameter Max. Input Power Vbias Operating Temperature Storage Temperature Absolute Maximum +10 dBm +15.75 V -55°C to +85°C -65°C to +125°C
1. Operation of this device above any one of these parameters may cause permanent damage.
Electrical Specifications 2,3 TA = -55°C to +85°C Case Temperature
Parameter Gain Frequency Response Gain Variation with Temperature 1 dB Compression Noise Figure Reverse Transmission VSWR Output IP2 Output IP3 Vbias Ibias Power Dissipation Test Conditions @ +25°C — — Output Power — — — Two-tone inputs up to +10 dBm Two-tone inputs up to +10 dBm — Vbias = +15.0 VDC @ +15V Bias Frequency 250 MHz 100-600 MHz 100-600 MHz 100-600 MHz 100-600 MHz 100-600 MHz 100-600 MHz 200-500 MHz 100-600 MHz 100-600 MHz — — — Units dB dB dB dBm dB dB Ratio Ratio dBm dBm VDC mA mW Min. 23.0 — — +20 — — — — +38 +28 +14.5 — — Typ. 23.5 — — — — -30 — — — — +15.0 77 1155 Max. 24.0 ±1.0 ±1.0 — 4.5 -28 2.5:1 2.0:1 — — +15.5 95 —
2. All specifications apply when operated at +15 VDC, with 50 ohms source and load impedance. 3. Heat Sinking: Operation at case temperature above 95°C is not recommended. Heat sinking adequate to dissipate 1.25 W must be provided in use.
Low Noise Amplifier, 100 - 600 MHz
AM-191
V3.00
S-Parameter Data
Frequency (MHz) MAG 100 150 200 250 300 350 400 500 600 0.33 0.25 0.17 0.16 0.16 0.17 0.18 0.21 0.30 S11 ANG -115.7 -128.6 -148.7 -165.8 177.3 165.0 157.2 176.3 -174.0 MAG 14.54 15.35 15.32 15.47 15.07 14.37 14.16 14.33 15.11 S21 ANG -143.3 167.9 133.1 103.0 76.5 51.7 27.6 -17.6 -68.9 MAG 0.02 0.02 0.02 0.01 0.01 0.01 0.01 0.02 0.02 S12 ANG -143.4 -168.5 -130.5 96.3 63.3 30.8 0.9 -44.7 -86.9 MAG 0.20 0.25 0.27 0.29 0.29 0.26 0.24 0.21 0.23 S22 ANG -171.1 121.6 8.5 -43.6 -79.5 -109.7 -140.3 -4.6 -59.4
Pin Configuration
Pin No. 1 2 3 4 5 Function RF OUT GND GND GND VDC Pin No. 6 7 8 9 10 Function RF IN GND GND GND GND
Specifications subject to change without notice. n North America: Tel. (800) 366-2266 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
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Low Noise Amplifier, 100 - 600 MHz Typical Performance Curves
Gain vs. Frequency
+85°C 24 +25°C -55°C
2.2
AM-191
V3.00
VSWR vs. Frequency
RF IN RF OUT
Gain (dB)
23
1.8
22
VSWR
1.4
21 75 100 200 300 400 500 600 650
1.0 75 100 200 300 400 500 600 650
Frequency (MHz)
Frequency (MHz)
Noise Figure
+85°C 4 +25°C
25
1 dB Compression
Output Power (dBm)
75 100 200 300 400 500 600 650
Noise Figure (dB)
3
23
2
21
1
19 75 100 200 300 400 500 600 650
Frequency (MHz)
Frequency (MHz)
Intermodulation Intercept
IP2 (f1+f2) 60 IP3 IP2 (f1-f2)
Ordering Information
Part Number AM-191 PIN Package Flatpack
Intercept (dBm)
50
40
30 75 100 200 300 400 500 600 650
Frequency (MHz)
Specifications subject to change without notice. n North America: Tel. (800) 366-2266 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
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