5 4 3 SCK JP2 5 6 1nF 7 J2 8 C4 33 25 IFIP 27 26 IFIM 28 AIP DNC 29 30 RFSW SDO LTC5586IUH VCCN LOM VCM LOP RFB VCC GND CSB GND 9 0.3pF SDI U1 C5 C15 VCM E4 260-0003 C45 B L4 22nH IND-0805 R1 19 R30 8 7 6 5 17 CSB 49.9 VCC 1 3 C C8 1nF 1nF LO INPUT J3 C7 VCC 0.3pF VSUPPLY R24 DNI 1nF E2 VSUPPLY 1 OHM 5.5V E1 C43 1210 4.7uF 0805 C42 C26 DNI R19 0 L11 0 GND R11 49.9 R14 DNI C27 DNI L10 B R17 DNI L12 0 IND-0805 C32 R16 DNI DNI 0 DNI DNI C30 DNI C29 IFQP J10 C31 R15 DNI C28 R13 0 R12 49.9 0 IND-0805 IND-0805 R10 DNI VCC A0 DNI IFQM IND-0805 J11 WP A1 SCL A2 SDA VSS 1 2 3 4 U3 24LC025 CUSTOMER NOTICE A APPROVALS LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES. VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED APP ENG. CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. 1. ALL RESISTORS ARE IN OHMS, 0402 ALL CAPACITORS ARE IN MICROFARADS, 0402 2. INSTALL SHUNTS AS SHOWN. TECHNOLOGY A.K.. SUNNY H. NOTE: UNLESS OTHERWISE SPECIFIED 4 THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. WIDEBAND IQ DEMODULATOR 3 N/A SCALE = NONE 2 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only TITLE: SCHEMATIC SIZE 5 IN SHDN R31 4.99K 4.99K 4.99K EEGND BYP 18 C25 C14 3pF R29 VOUT E10 C16 3pF C46 0.1uF JP1 4 3pF 1nF EEVCC 5 C41 0.01uF C6 20 L9 L3 22nH IND-0805 EXT 1 C40 1uF 0603 0.3pF VSENSE C13 3pF 3 1 OHM 2 21 SDO IFQP C44 1nF TEMP 23 SCK U2 LT1761IS5-3.3 VLOGIC 1.2V-3.3V 24 22 SDI IFIP J9 16 RFB 4 IFQM C3 VCC 15 0.3pF DNC C2 3 SCK AQP J1 OVDD DNI IND-0805 INT RFA C24 R8 DNI 0 L8 R23 OVDD GND 14 2 3 8 1 1nF 13 C1 RFA L6 0 IND-0805 AIM 14 R9 DNI C22 DNI C21 D DNI DNI DNI 49.9 E3 12 R6 DNI R4 C11 3pF DNC E11 3pF AQM GND C9 C39 1nF 0 IFIM J8 C23 R7 DNI C20 49.9 R5 C19 DNI DNI DNC 9 11 C 13 2 RFB 3 DNI C18 1nF 1 RFA 10 C37 12 SDO E5 OVDD RFSW 11 GPIO1 5 SDO E9 C38 DNI ISO_GND ISO_GND ISO_GND EE_GND SDI L2 22nH IND-0805 32 EE_SCL SCK R2 L1 22nH IND-0805 31 EE_SDA 4 7 40.2k MIP EE_VCC TEMP MIM ISO_MISO 2 6 CSB R3 DNI R18 0 MQM ISO_SDA_MOSI C12 3pF R20 MQP ISO_CSb ISO_SCK_SCL SDI C17 10 ISO_5V_3p3v_REG E8 C36 DNI 1 IND-0805 IND-0805 GND VCC L7 0 0 L5 C10 3pF D 2 E7 C35 DNI HD-2X7.0.79 P1 1 CSB E6 C33 DNI ISO_7V_UNREG 2 DATE: IC NO. LTC5586IUH REV. 3 DEMO CIRCUIT 2349 Wednesday, June 08, 2016 SHEET 1 1 OF 1 A