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...the analog plus company tm xr-2206-11-12es rev. 1.00 1996 exar corporation, 48720 kato road, fremont, ca 94538 (510) 668-7000 fax (510) 668-7017 november 1996-4 xr-2206/2211/2212 evaluation system user manual
xr-2206-11-12es rev. 1.00 2 notice exar corporation reserves the right to make changes to the products contained in this publication in order to im- prove design, performance or reliability. exar corporation assumes no responsibility for the use of any circuits de- scribed 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 circum- stances. copyright 1996 exar corporation user manual november 1996 reproduction, in part or whole, without the prior written consent of exar corporation is prohibited.
table of contents rev. 1.00 3 general description 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . board schematic diagram 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . component considerations 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . figure 1. demo board component layout 6 . . . . . . . . . . . . . . . . . . . . . . . figure 2. xr-2206 demo board 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . figure 3. xr-2211 demo board 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . figure 4. xr-2212 demo board 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
xr-2206-11-12es rev. 1.00 4 this page intentionally left blank
xr-2206-11-12es ...the analog plus company tm xr-2206/2211/2212 evaluation system rev. 1.00 5 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. 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 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 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. 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. 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 0.1 m f 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.
xr-2206-11-12es 6 rev. 1.00 breadboard area xr-2206-11-12 demo board sine out am inp r9 c5 r1 r22 c4 e1 c13 r8 r10 r17 r16 r15 sig inp gnd sig inp vco volt out e2 vco quad out c15 c20 v cc c18 c2 + c11 c6 vco i out c19 r12 r11 r14 r25 r26 r21 c14 c16 c17 r24 r20 r33 r13 c10 c9 xr2211 u2 c12 r19 r7 r6 c7 data out sq out r3 r4 r2 r5 + xr2206 u1 XR2212 u3 c1 + lock det out r18 c3 demod out inp fsk figure 1. demo board component layout
xr-2206-11-12es 7 rev. 1.00 1 bj1 v cc 1 bj2 ground c13 0.1 m f v cc 1 5 6 7 8 9 11 3 2 13 14 15 16 4 10 12 u1 xr-2206 c2 10 m f r8 r9 c4 1 am inp e1 1 fsk inp c5 0.1 m f 1 sine out 1 sq out r10 10k r22 22k c1 1 m f r3 r6 r4 r7 r5 50k r1 5.1k v cc r2 5.1k c3 10 m f date: october 12, 1994 size: document number: rev: a db2206.sch 1.0 title: demo board for 2206-11-12 fremont, ca 94538 exar corporation 48720 kato road sheet 3 of 3 + + + vco mult. & sine shaper current switches +1 figure 2. xr-2206 demo board
xr-2206-11-12es 8 rev. 1.00 date: october 12, 1994 size: document number: rev: a db2211.sch 1.0 title: demo board for 2206-11-12 fremont, ca 94538 exar corporation v cc v cc 1 bj1 v cc 1 bj2 ground c2 10 m f c6 0.1 m f 2 14 13 12 10 8 7 6 5 1 3 4 11 u2 xr-2211 c11 c8 0.1 m f 1 sig inp r17 10k r16 10k 1 lock detect 1 outputs r15 10k 1 data out r18 c7 0.1 m f r14 r12 r19 c9 0.1 m f c12 10nf r11 r13 c10 4.7nf + pre amp loop 0det lock detect comp vco quad 0det fsk comp reference internal 48720 kato road sheet 1 of 3 figure 3. xr-2211 demo board
xr-2206-11-12es 9 rev. 1.00 1 bj1 v cc 1 bj2 ground v cc c20 0.1 m f 2 14 13 12 9 7 8 15 5 1 10 411 3 6 16 u3 xr-2212 c2 10 m f e2 c18 0.1 m f 1 sig inp c15 1 vco i out 1 vco volt out 1 vco quad output 1 demod out c19 r26 r20 r24 r21 r23 c17 0.1 m f r26 c14 1nf c16 4.7nf + op amp + - vco quad out vco current out amp vco pre amp phase detector internal reference date: october 12, 1994 size: document number: rev: a db2212.sch 1.0 title: fremont, ca 94538 exar corporation 48720 kato road sheet 2 of 3 figure 4. xr-2212 demo board demo board for 2206-11-12
xr-2206-11-12es 10 rev. 1.00 notes
xr-2206-11-12es 11 rev. 1.00 notes
rev. 1.00 1996 ...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

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