u2793b ATMEL Corporation, u2793b Datasheet
u2793b
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u2793b Summary of contents
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... Electrostatic sensitive device. Observe precautions for handling. 1. Description The IC U2793B is a 300-MHz quadrature modulator that uses Atmel UHF process. It features low current consumption, single-ended RF ports and adjust- ment-free application, which makes the device suitable for all digital radio systems, e.g., GSM, PCN, JDC and WLAN option, output level and spurious products are adjustable at pins 19 and 20. In conjunction with Atmel’ ...
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... Pin Configuration Figure 2-1. Pinning SSO20 U2793B ACGND 2 19 GND 3 18 RFO 4 17 ACGND 5 16 U2793B SPU BBAI BBAI LP1 LP2 GND GND GND LOI LOI VREF BBBI BBBI 4651E–CELL–07/06 ...
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... Baseband input B 12 BBBI Baseband input B inverse 13 VREF Reference voltage (2.5V) 14 LOI Input LO 15 LOI Input LO inverse, typically grounded 16 GND Ground 17 GND Ground 18 GND Ground 19 LP2 Output low pass and power control 20 LP1 Output low pass and power control 4651E–CELL–07/06 U2793B 3 ...
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... LP1 and LP2. In conjunction with a parallel resistor the output level can be adjusted to the following mixer stage without degration of LO suppression and noise performance which would decrease if the I/Q input level is reduced. 4. For T = –40°C to +85°C and V amb U2793B 4 Symbol ...
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... P RFo RFO VSWR 1 SBS 35 45 RFo Pe <1 Ae < ±0.25 –137 N FL –143 SPU V 4 PUON V 2.375 2.5 2.625 Ref Zo 30 Ref U2793B Unit Type* dBm A deg dBm/Hz D µA D µ ...
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... Diagrams Figure 7-1. Figure 7-2. Figure 7-3. U2793B 6 Reference Voltage versus T amb 2.57 2.56 2.55 2.54 2.53 2.52 2.51 2.5 -40 0 Temperature (°C) OIP3 versus 150 MHz, Level -10 dBm amb -40 0 Temperature (°C) Supply Current versus T amb -40 0 Temperature (°C) 120 40 80 120 40 80 120 40 80 ...
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... Typical Output Power versus LO Frequency 250 mV (Differential) BBi 5 1.2 Vpp 0 -5 -10 -15 -20 100 mVpp 200 mVpp -25 400 mVpp -30 - 100 150 F (MHz) LO U2793B = 25 C amb 300 200 250 150 120 amb 1.0 Vpp 800 mVpp 600 mVpp 200 250 300 7 ...
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... Figure 7-7. U2793B 8 Typical Required V Input Signal (Differential) versus LO Frequency BBi for dBm and dBm O O 2000 1800 -1 dBm 1600 1400 1200 1000 800 600 400 200 100 150 F (MHz dBm -5 dBm 200 250 300 4651E–CELL–07/06 ...
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... OUT inv , 100 pF = 100 50- Microstrip = optional U2793B GND B inv Ref U2793B LO 9 ...
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... Figure 8-2. PCB Layout Evaluation Board U2793B 10 4651E–CELL–07/06 ...
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... AC GND 3,16,17,18 GND GND Power down 1n V Ref 6,7 S Power LP2 LP1 20 90° control loop GND 2 5 3,16,17,18 AC GND GND Remarks Tube, lead free Taped and reeled, lead free U2793B 100n 100n 1n OUT ...
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... Revision History Please note that the following page numbers referred to in this section refer to the specific revision mentioned, not to this document. Revision No. 4651E-CELL-07/06 U2793B 12 History Page 1, PB-free logo deleted Page 3, Pin Desription table: Symbols of Pins 10,12, 15 changed Page 4, Abs. Max. Ratings table: Storage temperature values changed Page 5, row 4 ...
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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 ...