Datasheet LT5534 (Analog Devices) - 7
| Hersteller | Analog Devices |
| Beschreibung | 50MHz to 3GHz RF Power Detector with 60dB Dynamic Range |
| Seiten / Seite | 10 / 7 — TEST CIRCUIT. Figure 2. Component Side Silkscreen of Evaluation Board. … |
| Dateiformat / Größe | PDF / 1.0 Mb |
| Dokumentensprache | Englisch |
TEST CIRCUIT. Figure 2. Component Side Silkscreen of Evaluation Board. Figure 3. Component Side Layout of Evaluation Board
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LT5534
TEST CIRCUIT Figure 2. Component Side Silkscreen of Evaluation Board Figure 3. Component Side Layout of Evaluation Board APPLICATIONS INFORMATION
The LT5534 is a logarithmic-based detector, capable of
Table 1. RF Input Impedance
measuring an RF signal over the frequency range from
FREQUENCY INPUT S11
50MHz to 3GHz. The 60dB linear dynamic range is
(MHz) IMPEDANCE (Ω) MAG ANGLE (DEG)
achieved with very stable output over the full temperature 50 1429-j429 0.938 –1.1 range from –40°C to 85°C. The absolute variation over 100 947-j710 0.934 –2.9 temperature is typically within ±1dB over a 47dB dynamic 200 509-j609 0.922 –5.6 range at 1.9GHz. 400 250-j440 0.908 –9.9 600 149-j344 0.900 –14.1
RF Input Port
800 96.8-j278 0.896 –18.3 The RF port is internally biased at V 1000 67.6-j229 0.893 –22.7 CC-0.18V. The pin should be DC blocked when connected to ground or other 1200 49.7-j193 0.889 –27.3 matching components. A 47Ω resistor (R1) connected to 1400 38.4-j165 0.883 –32.3 ground will provide better than 10dB input return loss up 1600 30.8-j143 0.879 –37.3 to 2.5GHz. An additional 2nH inductance in series with 1800 25.4-j125 0.873 –42.6 R1 will provide improved input matching up to 3GHz. 2000 21.4-j109 0.866 –48.0 The impedance vs frequency of the RF input is detailed 2200 18.5-j96.2 0.862 –53.6 in Table 1. 2400 16.6-j85.0 0.848 –59.6 The approximate linear RF input power range of the LT5534 2600 15.2-j75.7 0.834 –65.6 is from –62dBm to –2dBm with a 50Ω source impedance. 2800 13.7-j67.5 0.826 –71.8 However, this range can be adjusted either upward or 3000 12.1-j60.1 0.822 –78.2 5534fc 7 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram TEST CIRCUIT Applications Information Revision History Package Description Related Parts
TEST CIRCUIT Figure 2. Component Side Silkscreen of Evaluation Board Figure 3. Component Side Layout of Evaluation Board APPLICATIONS INFORMATION
The LT5534 is a logarithmic-based detector, capable of
Table 1. RF Input Impedance
measuring an RF signal over the frequency range from
FREQUENCY INPUT S11
50MHz to 3GHz. The 60dB linear dynamic range is
(MHz) IMPEDANCE (Ω) MAG ANGLE (DEG)
achieved with very stable output over the full temperature 50 1429-j429 0.938 –1.1 range from –40°C to 85°C. The absolute variation over 100 947-j710 0.934 –2.9 temperature is typically within ±1dB over a 47dB dynamic 200 509-j609 0.922 –5.6 range at 1.9GHz. 400 250-j440 0.908 –9.9 600 149-j344 0.900 –14.1
RF Input Port
800 96.8-j278 0.896 –18.3 The RF port is internally biased at V 1000 67.6-j229 0.893 –22.7 CC-0.18V. The pin should be DC blocked when connected to ground or other 1200 49.7-j193 0.889 –27.3 matching components. A 47Ω resistor (R1) connected to 1400 38.4-j165 0.883 –32.3 ground will provide better than 10dB input return loss up 1600 30.8-j143 0.879 –37.3 to 2.5GHz. An additional 2nH inductance in series with 1800 25.4-j125 0.873 –42.6 R1 will provide improved input matching up to 3GHz. 2000 21.4-j109 0.866 –48.0 The impedance vs frequency of the RF input is detailed 2200 18.5-j96.2 0.862 –53.6 in Table 1. 2400 16.6-j85.0 0.848 –59.6 The approximate linear RF input power range of the LT5534 2600 15.2-j75.7 0.834 –65.6 is from –62dBm to –2dBm with a 50Ω source impedance. 2800 13.7-j67.5 0.826 –71.8 However, this range can be adjusted either upward or 3000 12.1-j60.1 0.822 –78.2 5534fc 7 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram TEST CIRCUIT Applications Information Revision History Package Description Related Parts