Ddr Termination - EUROCOM M375E Service Manual

DDR Termination

M_AA12 RP20 1 8 8P4RX22 M_AA_FR_12
5,8 M_AA12
M_AA9 2 7 M_AA_FR_9
5,8 M_AA9
M_AA7 3 6 M_AA_FR_7
5,8 M_AA7
M_AA5 4 5 M_AA_FR_5
5,8 M_AA5
M_AA3 RP23 1 8 8P4RX22 M_AA_FR_3
5,8 M_AA3
M_AA1 2 7 M_AA_FR_1
5,8 M_AA1
M_AA10
3 6 M_AA_FR_10
5,8 M_AA10
4 5
5,8 M_BS0#
M_DATA3 RP39 1 8 8P4RX22 M_DATA_R_3
M_DATA2 2 7 M_DATA_R_2
M_DATA1 3 6 M_DATA_R_1
M_DATA0 4 5 M_DATA_R_0
M_DATA6 RP38 1 8 8P4RX22 M_DATA_R_6
M_DQS0 2 7 M_DQS_R0
M_DATA5 3 6 M_DATA_R_5
M_DATA4 4 5 M_DATA_R_4
M_DATA10 RP37 1 8 8P4RX22 M_DATA_R_10
M_DATA11 2 7 M_DATA_R_11
M_DATA8 3 6 M_DATA_R_8
M_DATA9 4 5 M_DATA_R_9
M_DATA14 RP34 1 8 8P4RX22 M_DATA_R_14
M_DATA15 2 7 M_DATA_R_15
M_DQS1 3 6 M_DQS_R1
M_DATA12 4 5 M_DATA_R_12
M_DATA25 1 8 M_DATA_R_25
M_DATA19 RP31 2 7 8P4RX22 M_DATA_R_19
M_DATA18 3 6 M_DATA_R_18
M_DATA17 4 5 M_DATA_R_17
M_DATA[63:0]
M_DQS2 1 8 M_DQS_R2
5 M_DATA[63:0]
M_DATA21 RP33 2 7 8P4RX22 M_DATA_R_21
M_DATA20 3 6 M_DATA_R_20
M_DATA13 4 5 M_DATA_R_13
1 8
5,8 M_CAS#
M_DATA27 RP28 2 7 8P4RX22 M_DATA_R_27
M_DATA26 3 6 M_DATA_R_26
M_DATA24 4 5 M_DATA_R_24
M_AA2
M_AA_FR_2 1 8
8 M_AA_FR_2
RP24 2 7 8P4RX22
5,8 M_BS1#
M_AA_FR_0
M_AA0 3 6
5,8 M_AA0
4 5
5,8 M_RAS#
RP26 1 8 8P4RX22
5,8 M_WE#
M_DATA31 2 7 M_DATA_R_31
M_DATA30 3 6 M_DATA_R_30
M_DQS3 4 5 M_DQS_R3
M_DATA35 RP12 1 8 8P4RX22 M_DATA_R_35
M_DATA34 2 7 M_DATA_R_34
M_DATA33 3 6 M_DATA_R_33
M_DATA32 4 5 M_DATA_R_32
M_DQS5 RP11 1 8 8P4RX22 M_DQS_R5
M_DATA45 2 7 M_DATA_R_45
M_DATA44 3 6 M_DATA_R_44
M_DATA39 4 5 M_DATA_R_39
M_DATA42 1 8 M_DATA_R_42
M_DATA43 RP10 2 7 8P4RX22 M_DATA_R_43
M_DATA41 3 6 M_DATA_R_41
M_DATA40 4 5 M_DATA_R_40
M_DATA52 1 8 M_DATA_R_52
M_DATA53 RP8 2 7 8P4RX22 M_DATA_R_53
M_DATA46 3 6 M_DATA_R_46
M_DATA47 4 5 M_DATA_R_47
M_DATA51 1 8 M_DATA_R_51
M_DATA50 RP6 2 7 8P4RX22 M_DATA_R_50
M_DATA49 3 6 M_DATA_R_49
M_DATA48 4 5 M_DATA_R_48
M_DATA60 1 8 M_DATA_R_60
M_DATA55 RP5 2 7 8P4RX22 M_DATA_R_55
M_DATA54 3 6 M_DATA_R_54
M_DQS6 4 5 M_DQS_R6
M_DATA58 1 8 M_DATA_R_58
M_DATA59 RP2 2 7 8P4RX22 M_DATA_R_59
M_DATA57 3 6 M_DATA_R_57
M_DATA56 4 5 M_DATA_R_56
M_DATA62 1 8 M_DATA_R_62
M_DATA63 RP3 2 7 8P4RX22 M_DATA_R_63
M_DQS7 3 6 M_DQS_R7
M_DQS[8:0] M_DATA61 4 5 M_DATA_R_61
5 M_DQS[8:0]
M_DATA29 1 8 M_DATA_R_29
M_DATA28 RP30 2 7 8P4RX22 M_DATA_R_28
M_DATA23 3 6 M_DATA_R_23
M_DATA22 4 5 M_DATA_R_22
M_CB[7:0] M_DQS4 1 8 M_DQS_R4
5 M_CB[7:0]
M_DATA38 RP14 2 7 8P4RX22 M_DATA_R_38
M_DATA36 3 6 M_DATA_R_36
M_DATA37 4 5 M_DATA_R_37
M_CB0 1 8 M_CB_R0
M_CB1 RP17 2 7 8P4RX22 M_CB_R1
M_CB2 3 6 M_CB_R2
M_DQS8 4 5 M_DQS_R8
M_CB5 1 8 M_CB_R5
M_CB4 RP15 2 7 8P4RX22 M_CB_R4
M_CB6 3 6 M_CB_R6
M_CB7 M_CB_R7
4 5
M_AA11 8 1 M_AA_FR_11
5,8 M_AA11
M_AA8 RP21 7 2 8P4RX22 M_AA_FR_8
5,8 M_AA8
M_AA6 6 3 M_AA_FR_6
5,8 M_AA6
M_AA4 5 4 M_AA_FR_4
5,8 M_AA4
Place these damping resistors close to SO-DIMM
M_DATA16 M_DATA_R_16
R22 22(0402)
M_DATA7 M_DATA_R_7
R23 22(0402)
M_CB3 R15 22(0402) M_CB_R3
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+1.25VS
+1.25VS 5,26,27,30,35
5,8 M_CKE3
Z0901
T
M_AA3
5,8 M_AA3
M_AA5
5,8 M_AA5
M_AA1
5,8 M_AA1
M_AA7
M_AA_FR_12 8 5,8 M_AA7
M_AA12
M_AA_FR_9 8 5,8 M_AA12
M_AA9
M_AA_FR_7 8 5,8 M_AA9
M_AA_FR_5 8
M_AA_FR_3 8
M_AA_FR_1 8
M_AA_FR_10 8 5,8 M_CS3#
M_BS0_FR# 8 5,8 M_CS1#
Z0902
T
M_DATA_R_26
M_DATA_R_27
5,8 M_CS0#
5,8 M_CAS#
5,8 M_RAS#
M_DATA_R_36
M_DATA_R_37
M_CB_R2
M_CB_R3
5,8 M_CKE1
M_DQS_R8
M_CB_R0
M_CB_R1
M_AA11
5,8 M_AA11
M_AA8
5,8 M_AA8
M_AA4
5,8 M_AA4
M_DATA_R_[63:0]
M_DATA_R_[63:0] 8 5,8 M_BS1#
M_AA0
5,8 M_AA0
M_AA2
M_CAS_FR# 8 5,8 M_AA2
Z0903
T
M_AA6
5,8 M_AA6
M_AA2 5,8
M_BS1_FR# 8
M_DATA_R_62
M_AA_FR_0 8
M_DATA_R_63
M_RAS_FR# 8
M_DQS_R7
M_WE_FR# 8
M_DATA_R_61
M_DATA_R_60
M_DATA_R_55
Z0904
T
Z0905
T
M_DATA_R_3
M_DATA_R_1
M_DATA_R_2
M_DATA_R_0
M_DATA_R_5
M_DATA_R_4
M_DATA_R_6
M_DQS_R0
M_DATA_R_14
place test point for all M_CKE & M_CS M_DATA_R_13
M_DATA_R_12
signal near VIA on top side as close to
M_DATA_R_7
RPACK as possible.
Z0906
T
Z0907
T
M_DQS_R1
M_DATA_R_15
VTT_MEM RESISTORS
M_DATA_R_24
M_DATA_R_18
M_DATA_R_17
M_DATA_R_16
M_DQS_R[8:0] M_DATA_R_20
M_DQS_R[8:0] 8
M_DATA_R_21
M_DATA_R_19
M_DATA_R_25
M_CB_R[7:0]
M_CB_R[7:0] 8
M_DATA_R_31
M_DQS_R3
M_DATA_R_28
M_DATA_R_23
M_DATA_R_22
M_DQS_R2
M_DATA_R_29
M_DATA_R_30
M_AA_FR_11 8
M_DATA_R_35
M_AA_FR_8 8
M_DATA_R_34
M_AA_FR_6 8
M_DATA_R_33
M_AA_FR_4 8
M_DATA_R_32
M_DQS_R4
M_DATA_R_38
M_DATA_R_39
M_DATA_R_44
M_DATA_R_43
M_DATA_R_42
M_DATA_R_40
M_DATA_R_41
M_DQS_R5
M_DATA_R_45
M_DATA_R_47
M_DATA_R_46
+1.25VS +1.25VS
RP19 RP7
10P8RX56 10P8RX56
1 10 M_DATA_R_50 1 10
2 M_DATA_R_51 2
3 M_DATA_R_48 3
4 M_DATA_R_49 4
6 M_DATA_R_52 6
7 M_DATA_R_53 7
M_DQS_R6
8 8
9 5 M_DATA_R_54 9 5
RP27 RP18
10P8RX56 10P8RX56
1 10 M_CB_R5 1 10
2 M_CB_R4 2
3 M_CB_R7 3
4 4
5,8 M_CKE0
6 6
5,8 M_CKE2
Z0908
7 7
T
8 Z0909 8
T
9 5 M_CB_R6 9 5
RP16 RP4
10P8RX56 8P4RX56
1 10 M_DATA_R_59 1 8
2 M_DATA_R_58 2 7
3 M_DATA_R_57 3 6
4 M_DATA_R_56 4 5
6
7 RP36
8 8P4RX56
9 5 M_DATA_R_11 1 8
M_DATA_R_10 2 7
RP22 M_DATA_R_8 3 6
10P8RX56 M_DATA_R_9 4 5
1 10
2 RP25
3 8P4RX56
4 M_AA10 1 8
5,8 M_AA10
6 2 7
5,8 M_BS0#
7 3 6
5,8 M_CS2#
8 4 5
5,8 M_WE#
9 5
RP1
10P8RX56
1 10
2
3
4
6
7
8
9 5
RP40
10P8RX56
1 10 9/12
2
3
4
6
7
8
9 5
RP35
10P8RX56
1 10
2
3
4
6
7
8
9 5
RP32
10P8RX56
1 10
2
3
4
6
7
8
9 5
RP29
10P8RX56
1 10
2
3
4
6
7
8
9 5
RP13
10P8RX56
1 10
2 Place these
3
decoupling
4
6 capacitors on
7
VTT_MEM trace
8
9 5
RP9
10P8RX56
1 10
2
3
4
6
7
8
9 5
Schematic Diagrams
+1.25VS
C18 .1u(0402) C16 .1u(0402)
C100 .1u(0402) C60 .1u(0402)
C95 .1u(0402) C92 .1u(0402)
C94 .1u(0402) C65 .1u(0402)
C113 .1u(0402) C91 .1u(0402)
C41 .1u(0402) C15 .1u(0402)
C90 .1u(0402) C25 .1u(0402)
C109 .1u(0402) C34 .1u(0402)
Sheet 8 of 36
C54 .1u(0402) C43 .1u(0402)
C115 .1u(0402) C64 .1u(0402) DDR Termination
C112 .1u(0402) C98 .1u(0402)
C93 .1u(0402) C45 .1u(0402)
C35 .1u(0402) C74 .1u(0402)
NOTE: Place these decoupling
capacitors close to VTT_MEM
termination resistors. (one
decoupling capacitor for each
two R-packs)
+1.25VS
R10 *10(2512)
C80 .1u(0402) C26 .1u(0402)
C14 .1u(0402) C103 .1u(0402)
C24 .1u(0402) C53 .1u(0402)
C116 .1u(0402) C111 .1u(0402)
C17 .1u(0402) C27 .1u(0402)
C21 .1u(0402) C38 .1u(0402)
C23 .1u(0402) C36 .1u(0402)
C82 .1u(0402) C50 .1u(0402)
C97 .1u(0402) C78 .1u(0402)
C13 .1u(0402) C83 .1u(0402)
C85 .1u(0402) C108 .1u(0402)
C89 .1u(0402) C107 .1u(0402)
C33 .1u(0402) C76 .1u(0402)
DDR Termination B - 9