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RC0402FR-0747KL Datasheet(PDF) 2 Page - Integrated Device Technology |
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RC0402FR-0747KL Datasheet(HTML) 2 Page - Integrated Device Technology |
2 / 13 page Intermediate Frequency Digital Variable Gain Amplifier IDTF1200 RevO Page 2 of 13 April, 2011 DATASHEET ABSOLUTE MAXIMUM RATINGS VCC to GND -0.3V to +5.5V All other Pins to GND -0.3V to (VCC +0.25V) ISET to GND -0.3V to +2.2V RF Input Power (ATTN_IN+, ATTN_IN-) @GMAX +10 dBm Continuous Power Dissipation 1.5W θJA (Junction – Ambient) +41°C/W θJC (Junction – Case) The Case is defined as the exposed paddle +4°C/W Operating Temperature Range (Case Temperature) TC = -40°C to +85°C Maximum Junction Temperature 150°C Storage Temperature Range -65°C to +150°C Lead Temperature (soldering, 10s) . +260°C KEY FEATURE – NOISE FIGURE SLOPE Standard Variable Gain amplifiers exhibit a [NF/Gain] slope of -1 dB/dB. Practically speaking, as gain is reduced, Noise Figure degrades dB for dB. The F1200 utilizes new technology that flattens the Noise Figure response (~ -0.16 dB/dB) for most of the gain control range while keeping distortion (Output IP3) constant. The result is that NF is improved up to 16 dB vs. a standard VGA at low gain settings. The graph below illustrates this by showing the IDTF1200 NF and IP3O vs. Gain setting contours. 0 5 10 15 20 25 30 35 40 45 50 -2 0 2 4 6 8 10 12 14 16 18 20 22 Gain (dB) Output IP3 Noise Figure |
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