4 3 2 D RTS 22 4 3 2 1 CBias CDRef 9 14k7 IDC10 RxAF RxA R17 FB2 600Z R22 787k 3V R23 18 XOut 17 RxD 5 6 TxD 7 8 RTS 9 3V 10 3V IDC10 FB4 600Z 460,8kHz C19 Y1 220pF C C20 220pF R30 0R J3 CLK_IN 2 5 C12 1nF R26 422k C13 R24 1nF 215k C14 470pF R27 215k RxAFI 3 9 RxAF B ARef B R20 C10 470nF 499k XIN 220pF 5 U3 TLV431BSN1T1G 3M R21 1k 19 4 R25 215k RxA 1V24 R19 100nF C15 AVss 2 3 3V C17 100nF C11 7 3V 499k R18 200k R16 DVss 20 1 ARef 21 1 CD 1 8 DVdd RxAFI 5 RxAF 6 15 TxA RxAFI 16 7 RxA 7 AVdd 8 14 DVss 13 TEST9 6 9 U1 A5191HRT RST 3 4 TEST8 200k R29 TEST7 10 14k7 RxD CD 25 26 27 28 29 30 23 5 C 31 TxD AVss C18 100nF RESET TEST10 IDC4 24 12 4 TEST11 11 3 TEST12 2 TEST1 TEST5 TEST2 1 DVdd EXP TEST3 R28 200k OUT 0 TEST4 32 IDC2 GND Vdd NC D 3V CAT808NTDI-27GT3 U23 NC 1 C16 100nF FB3 600Z 10 5 2 4 6 8 3V 10 IDC3 IDC10 3V A A Title A5191HRT DB Size A4 Date: 5 4 3 2 Document Number 1 Thursday, December 23, 2010 Rev 1.0 Sheet 1 1 of 1