XR2206D-F

...the analog plus company TM XR-2206-11-12ES November 1996-4 XR-2206/2211/2212 Evaluation System User Manual Rev. 1.00
1996 EXAR Corporation, 48720 Kato Road, Fremont, CA 94538  (510) 668-7000  FAX (510) 668-7017 XR-2206-11-12ES NOTICE EXAR Corporation reserves the right to make changes to the products contained in this publication in order to improve design, performance or reliability. EXAR Corporation assumes no responsibility for the use of any circuits described herein, conveys no license under any patent or other right, and makes no representation that the circuits are free of patent infringement. Charts and schedules contained herein are only for illustration purposes and may vary depending upon a user’s specific application. While the information in this publication has been carefully checked; no responsibility, however, is assumed for inaccuracies. EXAR Corporation does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless EXAR Corporation receives, in writing, assurances to its satisfaction that: (a) the risk of injury or damage has been minimized; (b) the user assumes all such risks; (c) potential liability of EXAR Corporation is adequately protected under the circumstances. Copyright 1996 EXAR Corporation User Manual November 1996 Reproduction, in part or whole, without the prior written consent of EXAR Corporation is prohibited. Rev. 1.00 2 Table of Contents GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 BOARD SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 COMPONENT CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 1. Demo Board Component Layout . . . . . . . . . . . . . . . . . . . . . . . Figure 2. XR-2206 Demo Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3. XR-2211 Demo Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 4. XR-2212 Demo Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 6 7 8 9 Rev. 1.00 3 XR-2206-11-12ES This Page Intentionally Left Blank Rev. 1.00 4 XR-2206-11-12ES ...the analog plus company TM XR-2206/2211/2212 Evaluation System three devices will function properly with them, they are provided for illustration only, and are not chosen for any specific application. Also, all the parts that are shown may not be required for a particular circuit since the schematic shows everything that the board can accommodate. GENERAL DESCRIPTION This demo board is a blank printed circuit card that simplifies design, breadboarding, and test of circuits using the XR-2206, XR-2211, or the XR-2212. The 5.0 by 4.75 inch board can be used to build practically all of the databook application circuits that are given for these devices. With the exception of common power feed, each chip and its associated passive components are independent circuit blocks on the demo board. Therefore, it can be assembled with any one or more of the chips according to the user’s needs. COMPONENT CONSIDERATIONS The component marking, which is 1:1 scale, gives individuals who do not have an actual demo board an approximate idea of component sizes. Power, input, and output connections are made at pads that are located close to the associated IC pin or component. Holes for five banana jacks or binding posts are located at the rear of the board. Two of these should be used for power and ground, and the remaining three can be wired to the I/O pads as needed. BOARD SCHEMATIC DIAGRAM The schematic diagram contains separate sections for the XR-2206, XR-2211, and the XR-2212. Circuit design for a specific application requires using these diagrams while referring to the appropriate circuits and equations that are given for each device in the EXAR databook. A breadboard section with isolated power and ground busses is also provided for additional analog or digital circuitry that may be required. The style of electrical components that the board uses should be readily available. The potentiometers are the inexpensive vertical-mount PC board type. Resistors are 1/4 watt and the bypass capacitors can be 0.1µF monolithic ceramic type with radial leads spaced 0.1 inch. The electrolytic capacitors are also vertical mount units with 0.1 inch lead spacing. The board area provided for the various timing capacitors should be sufficient for small mica, polystyrene, or mylar units. The purpose of this schematic is to show the circuit capabilities for each integrated circuit. Although the component values shown are reasonable and each of the Rev. 1.00 5 XR-2206-11-12ES VCO Volt Out SIG INP E2 SINE Out AM INP C18 Demod Breadboard Area Figure 1. Demo Board Component Layout Rev. 1.00 6 Out R24 INP R20 C14 R13 R19 C16 R33 C17 XR-2206-11-12 Demo Board R21 C10 C9 R7 C15 R25 VCO I Out C19 R26 R12 R11 Data Out C7 VCO Quad Out C20 U3 R14 C12 FSK XR–2211 R6 Lock DET Out C2 + R18 C3 R15 R2 SQ Out C11 U2 R16 R3 + C1 R17 U1 R4 R5 + R10 C4 C6 C13 R8 XR–2206 R1 R22 SIG INP E1 VCC GND XR–2212 C5 R9 XR-2206-11-12ES VCC BJ1 Ground BJ2 1 1 C2 + VCC C13 10µF 0.1µF U1 4 AM INP 1 1 5 E1 C4 16 R9 Mult. & Sine Shaper VCO 15 14 R8 6 13 FSK INP 1 9 7 8 Current Switches 2 +1 C5 1 0.1µF 1 11 R3 SQ OUT R4 10 C1 R6 SINE OUT R7 3 12 + XR-2206 R10 10K R22 22K 1µF R5 50K R1 5.1K C3 + VCC R2 5.1K 10µF EXAR CORPORATION 48720 Kato Road Fremont, CA 94538 Title: Demo Board for 2206-11-12 Size: Document Number: DB2206.SCH A Date: Sheet 3 of 3 October 12, 1994 Figure 2. XR-2206 Demo Board Rev. 1.00 7 Rev: 1.0 XR-2206-11-12ES VCC BJ1 Ground BJ2 1 VCC + C6 0.1µF 10µF VCC 1 SIG INP C8 1 Lock Detect Comp VCO 13 12 Internal 10 C9 11 3 Loop 0–Det 0.1µF 14 R12 U2 Pre Amp 2 C11 R13 1 C2 Quad 0–Det R17 R16 R15 10K 10K 10K 5 6 1 7 1 Reference FSK Comp 8 0.1µF 4 R19 R11 XR-2211 R14 1 LOCK DETECT OUTPUTS DATA OUT R18 C7 0.1µF C12 10nF EXAR CORPORATION 48720 Kato Road Fremont, CA 94538 C10 4.7nF Title: Demo Board for 2206-11-12 Size: Document Number: DB2211.SCH A Date: Sheet 1 of 3 October 12, 1994 Figure 3. XR-2211 Demo Board Rev. 1.00 8 Rev: 1.0 XR-2206-11-12ES VCC BJ1 Ground BJ2 1 1 + VCC C20 C2 10µF 0.1µF U3 1 SIG INP C18 1 2 16 Pre Amp Phase Detector 0.1µF 10 E2 14 C15 Amp VCO 13 VCO Current Out VCO Quad Out 12 9 R24 5 1 3 1 15 1 VCO VOLT OUT VCO I OUT VCO QUAD OUTPUT + R26 6 Internal Reference XR-2212 4 DEMOD OUT C19 - R20 1 8 Op Amp 7 11 R23 R21 C17 0.1µF C14 1nF R26 C16 EXAR CORPORATION 48720 Kato Road Fremont, CA 94538 4.7nF Title: Demo Board for 2206-11-12 Size: Document Number: DB2212.SCH A Date: Sheet 2 of 3 October 12, 1994 Figure 4. XR-2212 Demo Board Rev. 1.00 9 Rev: 1.0 XR-2206-11-12ES Notes Rev. 1.00 10 XR-2206-11-12ES Notes Rev. 1.00 11 ...the analog plus company TM EXAR Corporation 48720 Kato Road Fremont, CA 94538 (510) 668-7000, Fax (510) 668-7017 Worldwide Web Site: http://www.exar.com Rev. 1.00
1996