ATR0797 Atmel, ATR0797 Datasheet
ATR0797
Specifications of ATR0797
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ATR0797 Summary of contents
Page 1
... IF output. Features include switchable gain control on a frequency range from 65 MHz to 300 MHz. The device performs a very low amplitude as well as phase error and allows high input P1dB. The ATR0797 targets a variety of system applications for communications including 3G wireless. ...
Page 2
... Local oscillator, negative input, self biasing, AC-couple 13 LOP Local oscillator, positive input, self biasing, AC-couple 14 VCC 5 V power supply 15 BBQN Baseband Q-axis negative output, self biasing 16 BBQP Baseband Q-axis positive output, self biasing ATR0797 2 BBIN 1 16 BBQP BBIP 2 15 BBQN VCC 3 14 ...
Page 3
... Product Description 4665A–SIGE–02/03 Atmel’s ATR0797 is a variable gain I-Q demodulator designed for use in receiver IF sec- tions, which are typically existing in superheterodyne RF architectures. The ATR0797 has two gain stages that are independent of each other. These gain stages are broadband differential amplifiers each with a digital control pin to set the gain ...
Page 4
... Type means 100% tested 100% correlation tested Characterized on samples Design parameter 2. On application level there is a chance to reach post match by optimizing the match with a senic capacitor! 3. The parasitic induefance of package, board and L4, L5 must be matched out to reach 20 dB port match above 100 MHz ATR0797 4 Symbol ...
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... The parasitic induefance of package, board and L4, L5 must be matched out to reach 20 dB port match above 100 MHz 4665A–SIGE–02/03 Pin Symbol Min -0 offset 15 I/Q (3) 15 4. 0.7 ´ ATR0797 (1) Typ. Max. Unit Type +0 deg A 2 dBm 300 MHz 195 mA A 0.3 ´ ...
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... ATR0797 6 Figure 3. Gain versus Temperature Low Gain -5 -10 -40 -20 0 Figure 4. Noise Figure versus Temperature 35 Low Gain High Gain 5 0 -40 -20 0 Figure 5. Amplitude Difference versus LO Frequency 0.4 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 0 100 200 High Gain Med Gain Temperature (C) Med Gain ...
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... Figure 7. Output P1dB versus LO Power Figure 8. Phase Difference versus LO Frequency 92 91.5 91 90 100 200 Low Gain High Gain Med Gain Temperature (C) Low Gain High Gain Med Gain - Power (dBm) 300 400 500 600 700 LO Frequency (MHz) ATR0797 800 7 ...
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... Vcc C12 Vcc C15 Vcc C17 C18 Vendor Part Number Atmel ATR0797 Johnson 742-0711-841 Components Mini-Circuits TC1-1 Würth Elektronik 74476401 BBQP C10 C6 BBQN L4 R6 Vcc C13 J5 C11 LOin C14 T3 Vcc C16 R10 Value Size/Package TSSOP16 1 µF 1206 1 kW 0402 22 pF 0402 1 µ ...
Page 9
... Indicates metalization - vias connect pad to underlying ground plane Remark: Heatslug must be soldered to GND. In order to avoid soldering problems, plugging of the vias under th leafslug is recom- mended. Only ground signal faces are allowed directly under the package. 0.7 0.9 ATR0797 9 ...
Page 10
... Ordering Information Extended Type Number ATR0797 Package Information ATR0797 10 Package Remarks TSSOP16 4665A–SIGE–02/03 ...
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... No licenses to patents or other intellectual property of Atmel are granted by the Company in connection with the sale of Atmel products, expressly or by implication. Atmel’s products are not authorized for use as critical components in life support devices or systems. ...