U2790B ATMEL Corporation, U2790B Datasheet
U2790B
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U2790B Summary of contents
Page 1
... Electrostatic sensitive device. Observe precautions for handling. 1. Description The U2790B is a 1000-MHz quadrature modulator using Atmel cess. It features a frequency range from 100 MHz up to 1000 MHz, low current consumption, and single-ended RF and LO ports. Adjustment-free application makes the direct converter suitable for all digital radio systems up to 1000 MHz, e.g., GSM, ADC, JDC ...
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... BB Baseband input Baseband input A inverse Baseband input Baseband input B inverse input i 15 Phase adjustment (not necessary for regular applications) adj U2790B GND ...
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... Z S amb Pin Symbol 7-8, V BBi 9-10 Z BBi f BBi V BBb 4.5V to 5.5V. S U2790B Value 125 –55 to +125 Value 4.5 to 5.5 –40 to +85 Value 110 = 900 MHz Min. Typ. Max. Unit 4.5 5 ...
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... In reference output level –1 dBm and I/Q input level of 400 mV 3. Sideband suppression is tested without connection at pins 15 and 16. For higher requirements a potentiometer can be connected at these pins. 4. For T = –30°C to +85°C and V amb 5. By low impedance signal source. U2790B 25°C, referred to test circuit, system impedance Z S amb Pin ...
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... Diagrams Figure 7-1. Figure 7-2. 4583D–CELL–07/06 Typical Single Sideband Output Spectrum 900 MHz –10 dBm Typical GMSK Output Spectrum U2790B = 4.5V and V = 5.5V (differential 25°C BBI PP amb 5 ...
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... Figure 7-3. Figure 7-4. U2790B 6 Demo Board Layout OIP3 versus 150 MHz, Level –20 dBm amb 0.2 V BBI 0.4 V BBi -40 - Temperature (° 100 4583D–CELL–07/06 ...
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... BBi 1.0 V BBi -40 - Temperature (°C) Output Power versus T amb 0.5 0 -0 900 MHz LO -2 -2.5 -40 - Temperature (°C) Supply Current versus T amb -40 - Temperature (°C) U2790B 100 150 MHz LO 100 100 ...
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... Figure 7-8. Figure 7-9. U2790B 8 Typical S11 Frequency Response of the RF Output Typical VSWR Frequency Response of the RF Output 4583D–CELL–07/06 ...
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... Figure 7-10. Typical S11 Frequency Response of the LO Input Figure 7-11. Typical VSWR Frequency Response of the LO input 4583D–CELL–07/ 100 LO Frequency (MHz) U2790B 1000 9 ...
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... Figure 7-12. Typical Supply Current versus Temperature at V Figure 7-13. Typical Output Power versus LO-Frequency at T Figure 7-14. Typical required V U2790B -40 - Temperature (°C) VBBI = 230 mV (differential 200 400 600 LO Frequency ( MHz ) Input Signal (differential) versus LO Frequency for ...
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... Duty cycle Frequency 0° regenerator doubler 90° inv = 25 C amb 600 800 1000 1200 1400 LO Frequency (MHz Power down 5 90°/ control loop 2,11,13,14 GND U2790B Power down V S 100n OUT 11 ...
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... Figure 7-17. Demo Board Layout U2790B 12 4583D–CELL–07/06 ...
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... The values used for the measurements are CLO 8.2 Baseband Coupling The U2790B-FP (SO16) has an integrated biasing network which allows AC coupling of the baseband signal at a low count of external components. The bias voltage is 2.5V ±0.15V. Figure 7-17 input. The internal DC offset between A and A, and B and B is typically < ±1 mV with a maximum of ± ...
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... RF Output Circuitry LO Input Circuitry Figure 8-2. U2790B Input Circuitry 4583D–CELL–07/06 ...
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... Package SO16 SO16 10.0 9.85 0.4 1.27 8. History Page 3, Abs. Max.Ratings table: Storage temperature values changed Page 2, Pin Description table: symbol of Pins 8 and 10 changed Put datasheet in a new template Remarks Tube, Pb-free Taped and reeled, Pb-free 5.2 4.8 3.7 1.4 0.2 0.25 3.8 0.10 6.15 5.85 technical drawings according to DIN specifications U2790B 15 ...
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... Atmel products are not suitable for, and shall not be used in, automotive applications. Atmel’s products are not intended, authorized, or warranted for use as components in applications intended to support or sustain life. © 2006 Atmel Corporation. All rights reserved. Atmel marks or trademarks of Atmel Corporation or its subsidiaries. Other terms and product names may be trademarks of others. Atmel Operations Memory ...