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| Demonstration Board DC266A Description The DC266A board features LTC1562 and LTC1562-2 quad active RC filter building blocks. Assembly DC266A-A is available with the LTC1562 in a 20-pin SSOP package for very low noise and low distortion filter applications in the frequency range 10kHz to 150kHz. Assembly DC266A-B is available with the LTC1562-2 in a 20-pin SSOP package for very low noise and low distortion filter applications in the frequency range 50kHz to 300kHz. A DC266A-A or a DC266A-B board has two sections, SECTION A and SECTION B. SECTION A of a DC266A board is assembled with a filter IC (LTC1562 or LTC1562-2) in a 20-pin SSOP package with power supply decoupling capacitors and on the board jumpers for dual or single supply operation and power shutdown. Also provided are pads for 0805 size surface mount resistors and capacitors and terminals for filter inputs, outputs and power supply. The printed circuit layout of a DC266A-A or a DC266A-B assembly allows SECTION A to be configured as single eighth order filter or as dual fourth order filters. SECTION B of a DC266A board has a printed circuit layout for a dual op amp configured as two inverting summing amplifiers with a feedback capacitor. Applications Single 8th order or dual 4th order low noise filters. Frequency range 10kHz to 300kHz. Lowpass, Bandpass, Highpass, Notch, Allpass or Arbitrary response. 1 2 3 4 5 6 7 8 9 10 A V+ 1 1 1 V+ 1 2 1 2 1 1 2 1 2 1 SGND E17 C4A V- E16 OPV+ OPV- 10UF E18 C8B 1 2 1 2 C5A C5B 1 2 10UF 10UF C9B 10UF VC8A 10UF C9A 10UF OPV+ 1 E19 SGND E20 OPVE21 A C4B 1 2 10UF 10UF B VIN1 1 2 B E1 CO2 1 2 1 VIN1 RFF2 Z12 Z22 Z32 Z42 1 1 N1 Z11 V2B 1 1 1 0805 Z21 V1B 1 2 0805 0805 0805 0805 E5 2 1 2 1 2 3 2 2 1 C 0805 Z31 1 1 2 RG2 2 C SGND 1 E2 Z41 N3 1 1 0805 Z36 1 0805 0805 0805 2 2 3 2 2 1 0805 U2A 4 V1C 1 2 2 VIAS TO BOTTOM SIDE V1C SGND V2C AGND 1 1 JP4 SINGLE DUAL C7 0.1UF OPV2 8 1 + OPV1 1 1 U1 E6 INVC V1C V2C V1 2 1 VAGND 3 VAGND 1 V2D 1 V2D 13 1 2 14 15 AGND 16 17 18 1 2 19 1 2 20 1 INVB V1B V2B VV+ 2 2 3 4 5 2 V2C 1 Z16 1 Z26 1 D OP1 E12 OPV+ N5 D RQ1 RQ2 R22 VSINGLE 2 E7 1 R21 VC2 JP2 DUAL E8 AGND V2D SGND V1D N4 Z35 1 1 Z15 1 Z25 1 0805 0805 0805 E9 E10 1 V1D 1 1 2 2 2 2 1 V+ 0.1UF 2 6 SHDN VV2A V1A V1D INVD 11 INVA 12 1 2 7 2 2 10 9 8 AGND 2 1 2 SGND E13 E E 1 3 SHDN C31 R24 RQ4 1.0UF JP3 3 JP1 2 2 C1 0.1UF SGND C6 0.1UF CO1 1 2 2 R23 1 F 1 PWR ON RQ3 1 JP5 Z33 1 1 0805 0805 0805 0805 1 2 2 Z43 0805 Z34 Z24 Z14 RFF4 Z23 V1A 1 1 V2A Z44 G VIN2 Z13 V1C V2C VIN2 1 2 1 0805 2 8 VIAS TO BOTTOM SIDE E3 1 VIN2 3 4 1 0805 2 N2 1 5 6 1 0805 2 SGND JP2X3-100 H E4 1 SECTION A CONFIDENTIAL INFORMATION APPROVALS KIM TRAN DATE DRAFTER CHECKER ENGINEER ENGR. MGR PROJ. DIR NEXT ASSEMBLY ASSY5 6 7 8 SECTION B LINEAR TECHNOLOGY CORP. 1630 McCARTHY BLVD. MILPITAS, CA 95035 PH. (408) 954-8400 FAX (408) 434-0507 Title Size I I NOTES: UNLESS OTHERWISE SPECIFIED THIS DOCUMETNT CONTAINS UNPUBLISHED INFORMATION WHICH IS PROPRIETARY TO AND IS THE PROPERTY OF LINEAR TECH. CORP. AND MAY NOT BE USED , DISCLOSED OR REPRODUCED WITHOUT THE EXPRESS WRITTEN PERMISSION OF LINEAR TECH. CORP. TRADE SECRET INFO. 4 1. J LTC1562/-2 UNIVERSAL FILTER BOARD B Date: Document Number INSTALL SHUNTS AS SHOWN BELOW: *JP1 PIN 1 AND 2 (PWR ON) *JP2 PIN 2 AND 3 (DUAL) *JP3 PIN 2 AND 3 (SGND) *JP4 PIN 2 AND 3 (DUAL) *JP5 PIN 3 TO 4 AND PIN 5 TO 6. 2. Z41-Z44 ARE ZERO OHM RESISTORS. 3 Wednesday, January 29, 2003 9 1 2 + 5 - LTC1562A/-2 E11 U2B 2 2 6 1 4 RG1 OPV2 7 F 2 1 OP2 E14 1 SGND E15 G H DC266A-1*LTC1562/-2 Sheet 1 of 10 Rev 1 J A Linear Technology Corporation LTC1562-2 BILL OF MATERIALS DC266A-B QTY- 110 11/9/2004 Item Qty Reference Part Description Manufacture / Part # NUMBER OF BOARDS = 1 RQ1-RQ4,RG1,RG2,CO1,CO2, RFF2,RFF4,Z11-Z16,Z21-Z26 Z31-Z34,R21-R24 4 Z41-Z44 2 C1,C2 0 C6,C7 1 C3 4 C4B,C4A,C5B,C5A 0 C8B,C8A,C9B,C9A 14 E1-11,E16-18 0 E12-15,E19-21 2 JP1-2 0 JP3-4 1 JP5 3 FOR JP1-2,JP5 1 U1 0 U2 0 RES, 0805 OPT 2 3 4 5 6 7 8 9 10 11 12 13 14 15 RES, 0 OHM, 0805, 5% CAP, X7R, 0.1UF, 0805, 16V OPT CAP, X7R, 1.0UF 10V, 10%, 0805 CAP, X5R, 10UF 16V, 10%, 1210 OPT TESTPOINT, TURRET, .090" OPT HEADER, 3 PINS, 1 ROW, .1"cc OPT HEADER, 6 PINS, 2 ROW, .1"cc SHUNT, .100 IC, LTC1562-2,SSOP20G IC, SO8 OPT TAD CJ10-0R0JM AVX 0805YC104KAT2 AVX 0805ZC105KAT2 TAIYO YUDEN EMK325B106KN MILL-MAX 2501-2 COMM CON 3801S-3G2 COMM CON 3201S-6G2 COMM CON CCIJ230-G LINEAR TECH. LTC1562-2CG 1 2 3 *** NOTES: UNLESS OTHERWISE SPECIFIED OPT ARE UNSTUFFED COMPONENTS AND SHOULD BE FREE OF SOLDER AFTER ASSEMBLY. BREAK BOARDS FROM A PANEL WHEN ASSEMBLY IS COMPLETE. INSTALL SHUNTS AS SHOWN BELOW: * JP1 PIN 1 AND 2 (PWR ON) * JP2 PIN 2 AND 3 (DUAL) *JP5 PIN 3 TO 4 AND PIN 5 TO 6. Page 1 - of - 1 |
Price & Availability of DC266A-B
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