Gigabyte GV-R92128DH Schematic REV.1.0
8
GND_TXVSSR
+12V_BUS
C10 place at the AGP connector
C10
D D
AGP_INTR#2
AGP_GNT#2
AGP_WBF#2
AGP_SB_STB#2
AGP_MB_8X_DET#2
AGP_DBI_HI2
AGP_RESET#2,19
C C
B B
A A
AGP_RESET#
AGP_AD_STB1#2
AGP_FRAME#2
AGP_TRDY#2
AGP_STOP#2
AGP_PAR2
AGP_AD_STB0#2
AGP_MB_8X_DET#
10U/12/Y/16V/S/X
4239010600
DNI
R3
100/6
U6A
R4
SN74ACT86D
180/6
COMMON
AGP_GC_8X_DET#
+3.3V_BUS
R83 0/6
+5V_BUS
147
3
R81
0/6/S
R90
47K/6
13
12
7
C11
0.1U/6/Y/25V
X7R
1
2
SN74ACT86D
6
The following grounds should be routed back to their respective regulators and then tied directly to the ground plane with one
GND_RSET
GND_R2SETGND_PVSSGND_MPVSSGND_AVSSQGND_AVSSNGND_A2VSSN GND_A2VSSQGND_TPVSS
C2
100U/D/10V/57
4261010700
Biggest footprint
AGP_GC_8X_DET#
AGP_ST1
AGP_SBA1
AGP_SBA3
AGP_SBA5
AGP_SBA7
AGP_AD30
AGP_AD28
AGP_AD26
AGP_AD24
AGP_C/BE#3
AGP_AD22
AGP_AD20
AGP_AD18
AGP_AD16
AGP_AD15
AGP_AD13
AGP_AD11
AGP_AD9
AGP_C/BE#0
AGP_AD6
AGP_AD4
AGP_AD2
AGP_AD0
+VDDQ_BUS
32
TEST
11
R91
1K/6/S
1
2N7002/SOT23
Q10
R92 147/6/1
via: GND_PVSS, GND_MPVSS, GND_TPVSS, and GND_A2VSSN. The other ground pins (GND_AVSSN, GND_A2VSSQ,
GND_RSET, GND_R2SET) should be tied to the ground plane directly through one via as close to the pins as possible
without connecting to anything else. If space is an issue it is possible to use one via for two adjacent pins.
Use 47uF Tant. 16V 20% D size (P/N 4230047600),
800mR Max. ESR and Max. ripple 430mA @ 100kHz
or
100uF, Alum. 6.3V 20% 6.3mm dia (P/N 4261010700),
440mR Max. ESR and Max. ripple 230mA @ 100kHz
or
47uF, Alum. 6.3V 20% 5mm dia (P/N 4262047600),
760mR Max. ESR and Max. ripple 150mA @ 100kHz
MAGP1
A1
12V
A2
TYPEDET#
A3
GC_DET#/RESEVED
A4
USB-
A5
GND
A6
INTA#
A7
RST#
A8
GNT#
A9
VCC3.3
A10
ST1
A11
MB_DET#/RESERVED
A12
DBI_HI/PIPE#
A13
GND
A14
WBF#
A15
SBA1
A16
VCC3.3
A17
SBA3
A18
SB_STB#
A19
GND
A20
SBA5
A21
SBA7
A22
KEY
A23
KEY
A24
KEY
A25
KEY
A26
AD30
A27
AD28
A28
VCC3.3
A29
AD26
A30
AD24
A31
GND
A32
AD_STB1#
A33
C/BE3#
A34
VDDQ
A35
AD22
A36
AD20
A37
GND
A38
AD18
A39
AD16
A40
VDDQ
A41
FRAME#
A42
KEY
A43
KEY
A44
KEY
A45
KEY
A46
TRDY#
A47
STOP#
A48
PME#
A49
GND
A50
PAR
A51
AD15
A52
VDDQ
A53
AD13
A54
AD11
A55
GND
A56
AD9
A57
C/BE0#
A58
VDDQ
A59
AD_STB0#
A60
AD6
A61
GND
A62
AD4
A63
AD2
A64
VDDQ
A65
AD0
A66
VREFGC
UNIVERSAL AGP BUS
AGP_VREFGC
R_AGP8X must be 1%
resistor to provide
350mV +/- 5% on Vref
R_AGP8X
R93
332/6/1
C19
R94
0.01U/6/X/25V
100/6/1
OVRCNT#
VCC3.3
DBI_LO/RESERVED
VCC3.3
SB_STB
VCC3.3
AD_STB1
C/BE2#
DEVSEL#
PERR#
SERR#
C/BE1#
AD_STB0
VREFCG
USB+
INTB#
REQ#
RBF#
SBA0
SBA2
SBA4
SBA6
VDDQ
VDDQ
IRDY#
VDDQ
VDDQ
VDDQ
VDDQ
5
+3.3V_BUS+5V_BUS+VDDQ_BUS
C8
C5
100U/D/10V/57
100U/D/10V/57
>=6.3V
>=6.3V
DNIDNI
B1
B2
5.0V
B3
5.0V
B4
B5
GND
B6
B7
CLK
B8
B9
B10
ST0
B11
ST2
B12
B13
GND
B14
B15
B16
B17
B18
B19
GND
B20
B21
B22
KEY
B23
KEY
B24
KEY
B25
KEY
B26
AD31
B27
AD29
B28
B29
AD27
B30
AD25
B31
GND
B32
B33
AD23
B34
B35
AD21
B36
AD19
B37
GND
B38
AD17
B39
B40
B41
B42
KEY
B43
KEY
B44
KEY
B45
KEY
B46
B47
B48
B49
GND
B50
B51
B52
B53
AD14
B54
AD12
B55
GND
B56
AD10
B57
AD8
B58
B59
B60
AD7
B61
GND
B62
AD5
B63
AD3
B64
B65
AD1
B66
AGP_ST0
AGP_ST2
AGP_SBA0
AGP_SBA2
AGP_SBA4
AGP_SBA6
AGP_AD31
AGP_AD29
AGP_AD27
AGP_AD25
AGP_AD23
AGP_AD21
AGP_AD19
AGP_AD17
AGP_C/BE#2
AGP_C/BE#1
AGP_AD14
AGP_AD12
AGP_AD10
AGP_AD8
AGP_AD7
AGP_AD5
AGP_AD3
AGP_AD1
AGP_AGPREF
4
AGP_SBA[7..0]
AGP_ST[2..0]
AGP_C/BE#[3..0]
AGP_AD[31..0]
R86 0/6
3
AGP_SBA[7..0] 2
AGP_ST[2..0] 2
AGP_C/BE#[3..0] 2
AGP_AD[31..0] 2
AGP_AGP/PCICLK 2
AGP_REQ# 2
AGP_RBF# 2
AGP_DBI_LO 2
AGP_SB_STB 2
AGP_AD_STB1 2
AGP_IRDY# 2
AGP_DEVSEL# 2
AGP_AD_STB0 2
TEST
AGP_AGPREF
AGP_VREFGC
TEST
+VDDQ_BUS
R84 0/6/X
R85 0/6/X
+VDDQ_BUS
1
R88 137/6/1
32
Q9
2N7002/SOT231
R89 71.5/6/1
32
2N7002/SOT23
Q11
R95 147/6/1
2
R_AGP8X must be 1%
resistor to provide
350mV +/- 5% on Vref
R_AGP8X
AGP_AGPTEST
Keep stubs short
R96
332/6/1U6D
R97
100/6/1
C21
0.01U/6/X/25V
1
AGP_AGPTEST 2
AGP_AGPREFCG 2
UNIVERSAL VREFGC CIRCUIT (2X, 4X, 8X)
8
Title
Size Document Number Rev
Custom
7
6
5
4
3
Date: Sheet of
2
GIGABYTE
AGP Bus 8X
GV-R92128DH
1 20Wednesday, July 02, 2003
1
1.0
8
AGP_RESET#1,19
AGP_DEVSEL#1
AGP_IRDY#1
AGP_FRAME#1
AGP_AD_STB01
AGP_AD_STB11
AGP_SB_STB1
AGP_SBA[7..0]1
AGP_REQ#1
AGP_GNT#1
AGP_PAR1
AGP_STOP#1
AGP_TRDY#1
AGP_INTR#1
AGP_WBF#1
AGP_RBF#1
8
AGP_AD[31..0]
AGP_C/BE#[3..0]
R36 0/6
AGP_ST[2..0]
C20
0.1U/6/Y/25V
A_R/C_DAC217
A_G/Y_DAC217
A_B/COMP_DAC217
A_HSYNC_DAC217
Y2
27 MHz/D/20PF/20PPM
2 1
C73
22P/6/N/50V/X
DNI
AGP_SBA[7..0]
OSC_IN
AGP_AD[31..0]1
D D
AGP_C/BE#[3..0]1
AGP_AGP/PCICLK1
C C
AGP_ST[2..0]1
AGP_AGPREFCG1
B B
AGP_AGPTEST1
To update:
XTAL to 10 ppm
A A
AGP_SB_STB#1
AGP_AD_STB0#1
AGP_AD_STB1#1
AGP_MB_8X_DET#1
AGP_DBI_HI1
AGP_DBI_LO1
TP8
C1205 22P/6/N/50V
R1115
1M/6
C1206 22P/6/N/50V
7
AGP_ST0
AGP_ST1
AGP_ST2
GND_R2SET
7
AGP_AD0
AGP_AD1
AGP_AD2
AGP_AD3
AGP_AD4
AGP_AD5
AGP_AD6
AGP_AD7
AGP_AD8
AGP_AD9
AGP_AD10
AGP_AD11
AGP_AD12
AGP_AD13
AGP_AD14
AGP_AD15
AGP_AD16
AGP_AD17
AGP_AD18
AGP_AD19
AGP_AD20
AGP_AD21
AGP_AD22
AGP_AD23
AGP_AD24
AGP_AD25
AGP_AD26
AGP_AD27
AGP_AD28
AGP_AD29
AGP_AD30
AGP_AD31
AGP_C/BE#0
AGP_C/BE#1
AGP_C/BE#2
AGP_C/BE#3
AGP_SBA0
AGP_SBA1
AGP_SBA2
AGP_SBA3
AGP_SBA4
AGP_SBA5
AGP_SBA6
AGP_SBA7
R40 715/6/1
A_VSYNC_DAC217
CRT2DDCCLK15
CRT2DDCDAT15
R33
1K/6/S
TESTEN
M25
M26
M28
W29
W28
AA29
AA28
M29
AF29
AG30
AE29
AG28
AF28
AF27
AJ26
AH25
AC29
AB26
AE27
AD26
AC25
AC26
AA25
AA26
AD28
AD29
AC28
AB25
AG27
AB28
AB29
AJ21
AJ22
AK22
AK21
AG25
AF25
AF23
AG24
AG29
AH29
AJ28
AJ29
AH26
AJ27
K27
L26
L25
L27
N26
N25
R26
R25
T26
T25
U26
U25
U27
V26
N29
N28
P29
P28
R29
R28
T28
V29
V28
Y29
Y28
P27
V25
T29
J29
J28
K29
K28
L29
L28
P25
U29
Y25
Y26
P26
U28
H29
H28
6
U1A
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
AD8
AD9
AD10
AD11
AD12
AD13
AD14
AD15
AD16
AD17
AD18
AD19
AD20
AD21
AD22
AD23
AD24
AD25
AD26
AD27
AD28
AD29
AD30
AD31
C/BEb0
C/BEb1
C/BEb2
C/BEb3
PCICLK
RSTb
REQb
GNTb
PAR
STOPb
DEVSELb
TRDYb
IRDYb
FRAMEb
INTAb
WBFb
NC19
NC18
RBFb
AD_STBF0
AD_STBF1
SB_STBF
SBA0
SBA1
SBA2
SBA3
SBA4
SBA5
SBA6
SBA7/IDSEL
ST0
ST1
ST2
SB_STBS
AD_STBS0
AD_STBS1
AGPREF
AGPTEST
AGP8X_DETb
DBI_HI
DBI_LO
R2SET
C_R
Y_G
COMP_B
H2SYNC
V2SYNC
CRT2DDCCLK
CRT2DDCDAT
NC34
NC33
XTALIN
XTALOUT
TESTEN
STEREOSYNC
RV280
STEREOSYNC
6
Part 1 of 5
PCI/AGPAGP2XCLK
AGP4X/8X
SSC DAC2
STEREOSYNC 7
DVOMODE
ZV_LCDDATA0
ZV_LCDDATA1
ZV_LCDDATA2
ZV_LCDDATA3
ZV_LCDDATA4
ZV_LCDDATA5
ZV_LCDDATA6
ZV_LCDDATA7
ZV_LCDDATA8
ZV_LCDDATA9
ZV_LCDDATA10
ZV_LCDDATA11
EXT TMDS / GPIO /
ROM
ZV_LCDDATA12
ZV_LCDDATA13
ZV_LCDDATA14
ZV_LCDDATA15
ZV_LCDDATA16
ZV_LCDDATA17
ZV_LCDDATA18
ZV_LCDDATA19
ZV_LCDDATA20
ZV_LCDDATA21
ZV_LCDDATA22
ZV_LCDDATA23
ZV_LCDCNTL0
ZV_LCDCNTL1
ZV_LCDCNTL2
ZV_LCDCNTL3
NCSTMDSDAC1
DVIDDCCLK
DVIDDCDATA
VGADDCDATA
VGADDCCLK
GPIO0
GPIO1
GPIO2
GPIO3
GPIO4
GPIO5
GPIO6
GPIO7
GPIO8
GPIO9
GPIO10
GPIO11
GPIO12
GPIO13
GPIO14
GPIO15
GPIO16
ROMCSb
NC35
NC27
NC36
NC28
NC37
NC29
NC39
NC31
NC38
NC30
NC22
NC13
NC23
NC14
NC24
NC15
NC26
NC17
NC25
NC16
DPLUS
DMINUS
TX0M
TX0P
TX1M
TX1P
TX2M
TX2P
TXCM
TXCP
HSYNC
VSYNC
RSET
AUXWIN
NC7
NC8
HPD
R
G
B
5
5
AJ5
AK4
AJ4
AF4
AG4
AH4
AK3
AJ3
AH3
AG3
AF3
AJ2
AH2
AG2
AF2
AH1
AG1
AH5
AE10
AF5
AE6
AF6
AE7
AG6
AF7
AG8
AF8
AE8
AE9
AF9
AG9
AK7
AJ7
AH8
AJ8
AH9
AJ9
AK9
AH10
AK10
AJ10
AH11
AJ11
AK6
AJ6
AH6
AH7
AE15
AF15
AE16
AF16
AG15
AH15
AH16
AH17
AF17
AG17
AJ17
AH18
AK18
AJ18
AG19
AH19
AJ16
AK16
AH20
AJ20
AF11
AE12
AF10
AE11
AJ13
AH13
AJ14
AH14
AJ15
AK15
AK12
AK13
AF13
AE13
AF12
AK25
AJ25
AK24
AH28
AH27
AJ23
AG26
AF26
AE25
VID0
VID1
VID2
VID3
VID4
VID5
VID6
VID7
VID/DVO12
VID/DVO13
VID/DVO14
VID/DVO15
R39 499/6/1
GND_RSET
TP10
GPIO0
GPIO1
GPIO2
GPIO3
GPIO4
GPIO5
GPIO6
GPIO7
GPIO8
GPIO9
GPIO10
GPIO11
GPIO12
GPIO13
GPIO14
GPIO15
GPIO16
ROMCS#
DVOMODE
VID[7..0]
VID/DVO16
VID/DVO17
VID/DVO18
VID/DVO19
VID/DVO20
TMDS_TX0N 16
TMDS_TX0P 16
TMDS_TX1N 16
TMDS_TX1P 16
TMDS_TX2N 16
TMDS_TX2P 16
TMDS_TXCN 16
TMDS_TXCP 16
DVIDDCCLK 15
DVIDDCDATA 15
CHARGE_POW 15
TP7
4
VID[7..0] 19
VSYNC
VGADDCDATA
VGADDCCLK
4
GPIO[13..0]
R1280 10K/6/S/X
R986
10K/6/S
24bit-SDR-DVO
DC_Strap1 8
DC_Strap2 8
DC_Strap3 8
DC_Strap4 8
GPIO[13..0] 7,8
Mem_Strap1 7
Mem_Strap0 7
ROMCS# 8
+VDDC_CT
A_R_DAC1 12
A_G_DAC1 12
A_B_DAC1 12
A_HSYNC_DAC1 12
A_VSYNC_DAC1 12
CRT1DDCDATA 12
CRT1DDCCLK 12
3
RSET
R2SET
Mem_Strap2 7
3
2
THE VALUES OF RSET AND R2SET SHOWN IN THE TABLE MAY BE
APPROXIMATE VALUES ONLY (SUITABLE FOR PROTOTYPING)
BEFORE GOING INTO PRODUCTION,CONTACT YOUR ATI
499R
REPRESENTATIVE FOR THE RSET/R2SET VALUES QUALIFIED FOR
715R
MASS PRODUCTION
LCDDATA16 7
LCDDATA17 7
PAL/NTSC 8
DC_Strap5 8
LCDDATA20 7,19
VHAD1 19
VPHCTL 19
VIPCLK 19
VPCLK 19
STEREOSYNC
VGADDCDATA
VGADDCCLK
VSYNC
TESTEN
TDO
TDI
TMS
TCK
TRST
Title
Size Document Number Rev
Custom
Date: Sheet of
2
1
TP1
OPTION BOUNDARY
TP2
SCAN WITH TESTEN
TP3
TP4
TP5
Some Part Ref's updated to 988 brd
GIGABYTE
RV280 Core
GV-R92128DH
2 20Wednesday, July 02, 2003
1
1.0
5
D D
4
3
2
1
MEMORY CHANNEL A
QSA[7..0]9
DQMA#[7..0]9
MAA[13..0]9
MDA[63..0]9
C C
B B
A A
QSA[7..0]
DQMA#[7..0]
MAA[13..0]
MDA[63..0]
MDA0
MDA1
MDA2
MDA3
MDA4
MDA5
MDA6
MDA7
MDA8
MDA9
MDA10
MDA11
MDA12
MDA13
MDA14
MDA15
MDA16
MDA17
MDA18
MDA19
MDA20
MDA21
MDA22
MDA23
MDA24
MDA25
MDA26
MDA27
MDA28
MDA29
MDA30
MDA31
MDA32
MDA33
MDA34
MDA35
MDA36
MDA37
MDA38
MDA39
MDA40
MDA41
MDA42
MDA43
MDA44
MDA45
MDA46
MDA47
MDA48
MDA49
MDA50
MDA51
MDA52
MDA53
MDA54
MDA55
MDA56
MDA57
MDA58
MDA59
MDA60
MDA61
MDA62
MDA63
QSB[7..0]10
DQMB#[7..0]10
MAB[13..0]10
R265
499/6/1
sterm
R268
499/6/1
sterm
MDB[63..0]10
+VREF
U1B
RV280
DQA1
DQA2
DQA3
DQA4
DQA5
DQA6
DQA7
DQA8
DQA9
DQA10
DQA11
DQA12
DQA13
DQA14
DQA15
DQA16
DQA17
DQA18
DQA19
DQA20
DQA21
DQA22
DQA23
DQA24
DQA25
DQA26
DQA27
DQA28
DQA29
DQA30
DQA31
DQA32
DQA33
DQA34
DQA35
DQA36
DQA37
DQA38
DQA39
DQA40
DQA41
DQA42
DQA43
DQA44
DQA45
DQA46
DQA47
DQA48
DQA49
DQA50
DQA51
DQA52
DQA53
DQA54
DQA55
DQA56
DQA57
DQA58
DQA59
DQA60
DQA61
DQA62
DQA63
Part 2 of 5
ELPIDA
MEMORY
INTERFACE A
G30
F28
F30
E29
D28
D29
D30
K25
K26
J25
J26
G28
G25
G26
G27
C29
B29
B28
C27
C26
B26
C25
B25
E26
F25
E25
F24
E23
D22
F22
E22
C17
B17
C16
B16
C14
B14
C13
B13
E18
F17
E17
D16
F15
E15
F14
E14
A13
C12
A12
B12
C10
B10
C9
B9
E13
F12
E12
F11
E10
F9
E9
F8
DQMAb0
DQMAb1
DQMAb2
DQMAb3
DQMAb4
DQMAb5
DQMAb6
DQMAb7
QSA0
QSA1
QSA2
QSA3
QSA4
QSA5
QSA6
QSA7
RASAb
CASAb
WEAb
CSAb0
CSAb1
CKEA
CLKA0
CLKA0b
CLKA1
CLKA1b
CLKAFB
VREF
DIMA0
DIMA1
MAA0
B24G29
AA0DQA0
MAA1
A24
AA1
MAA2
B23
AA2
MAA3
C23
AA3
MAA4
B21
AA4
MAA5
F21
AA5
MAA6
E21
AA6
MAA7
F20
AA7
MAA8
E20
AA8
MAA9
C21
AA9
MAA10
B22
AA10
MAA11
C22
AA11
MAA12
A25
AA12
MAA13
C24
AA13
DQMA#0
E28
DQMA#1
H26
DQMA#2
A27
DQMA#3
E24
DQMA#4
B15
DQMA#5
E16
DQMA#6
C11
DQMA#7
E11
QSA0
F29
QSA1
H25
QSA2
B27
QSA3
F23
QSA4
C15
QSA5
F16
QSA6
B11
QSA7
F10
RASA#
A19
CASA#
C18
WEA#
F18
CSA#0
E19
CSA#1
F19
CKEA
B19
CLKA0
C20
CLKA#0
B20
CLKA1
B18
CLKA#1
A18
C19
TP11
B8
F26
F13
+VREF
RASA# 9
CASA# 9
WEA# 9
CSA#0 9
CSA#1 9
CKEA 9
CLKA0 9,11
CLKA#0 9,11
CLKA1 9,11
CLKA#1 9,11
Vref Voltage
+MVDDQ
Re6
Re7
Place close to ASIC ball
Use localized Vref on the memory page
QSB[7..0]
DQMB#[7..0]
MAB[13..0]
MDB[63..0]
MEMORY CHANNEL B
MDB0
B6
MDB1
C6
MDB2
B5
MDB3
C5
MDB4
B2
MDB5
C3
MDB6
C2
MDB7
D2
MDB8
E8
MDB9
E7
MDB10
D4
MDB11
D3
MDB12
F6
MDB13
F3
MDB14
F5
MDB15
G6
MDB16
D1
MDB17
E2
MDB18
F2
MDB19
F1
MDB20
G2
MDB21
H3
MDB22
H2
MDB23
J3
MDB24
G4
MDB25
H6
MDB26
H5
MDB27
J6
MDB28
K5
MDB29
K4
MDB30
L6
MDB31
L5
MDB32
U2
MDB33
V2
MDB34
V1
MDB35
V3
MDB36
W3
MDB37
Y2
MDB38
Y3
MDB39
AA2
MDB40
AA3
MDB41
AB2
MDB42
AB3
MDB43
AC2
MDB44
AD1
MDB45
AD3
MDB46
AE1
MDB47
AE2
MDB48
U6
MDB49
U5
MDB50
U3
MDB51
V6
MDB52
W5
MDB53
W4
MDB54
Y6
MDB55
Y5
MDB56
AA6
MDB57
AA5
MDB58
AB6
MDB59
AB5
MDB60
AD6
MDB61
AD5
MDB62
AE5
MDB63
AE4
U1C
RV280
DQB0
DQB1
DQB2
DQB3
DQB4
DQB5
DQB6
DQB7
DQB8
DQB9
DQB10
DQB11
DQB12
DQB13
DQB14
DQB15
DQB16
DQB17
DQB18
DQB19
DQB20
DQB21
DQB22
DQB23
DQB24
DQB25
DQB26
DQB27
DQB28
DQB29
DQB30
DQB31
DQB32
DQB33
DQB34
DQB35
DQB36
DQB37
DQB38
DQB39
DQB40
DQB41
DQB42
DQB43
DQB44
DQB45
DQB46
DQB47
DQB48
DQB49
DQB50
DQB51
DQB52
DQB53
DQB54
DQB55
DQB56
DQB57
DQB58
DQB59
DQB60
DQB61
DQB62
DQB63
Part 3 of 5
ELPIDA
MEMORY
INTERFACE B
MEMVMODE
MEMVMODE1
MEMTEST
DQMBb0
DQMBb1
DQMBb2
DQMBb3
DQMBb4
DQMBb5
DQMBb6
DQMBb7
QSB0
QSB1
QSB2
QSB3
QSB4
QSB5
QSB6
QSB7
RASBb
CASBb
WEBb
CSBb0
CSBb1
CKEB
CLKB0
CLKB0b
CLKB1
CLKB1b
CLKBFB
DIMB0
DIMB1
MAB0
J2
AB0
MAB1
K3
AB1
MAB2
K2
AB2
MAB3
L3
AB3
MAB4
L2
AB4
MAB5
M3
AB5
MAB6
M2
AB6
MAB7
N5
AB7
MAB8
M1
AB8
MAB9
M5
AB9
MAB10
N3
AB10
MAB11
P2
AB11
MAB12
P6
AB12
MAB13
P5
AB13
DQMB#0
A4
DQMB#1
E3
DQMB#2
G3
DQMB#3
J5
DQMB#4
W2
DQMB#5
AC3
DQMB#6
W6
DQMB#7
AC6
QSB0
B4
QSB1
E5
QSB2
G1
QSB3
K6
QSB4
W1
QSB5
AD2
QSB6
V5
QSB7
AC5
RASB#
R2
T5
T6
R5
R6
R3
N1
N2
T2
T3
P3
B7
C7
G5
AE3
C8
RASB# 10
CASB#
CASB# 10
WEB#
WEB# 10
CSB#0
CSB#0 10
CSB#1
CSB#1 10
CKEB
CKEB 10
CLKB0
CLKB0 10,11
CLKB#0
CLKB#0 10,11
CLKB1
CLKB1 10,11
CLKB#1
CLKB#1 10,11
TP12
R55
47/6
MEMVMODE[1:0] MEMORY IO VOLTAGE
0 1
1 0
1 1
2.5V (DDR)
1.8V (DDR)
3.3V (SDR)
R53
4.7K/6
R51 4.7K/6
R52 4.7K/6/X
DNI
R54
4.7K/6/X
DNI
Default
+VDDC_CT
Title
Size Document Number Rev
Custom
5
4
3
2
Date: Sheet of
GIGABYTE
RV280 Mem Interface
GV-R92128DH
1
3 20Wednesday, July 02, 2003
1.0
5
4
3
2
1
CP2A
CP2B
CP2C
8 1
7 2
6 3
0.01U/8P4C/X/25V/S
0.01U/8P4C/X/25V/S
0.01U/8P4C/X/25V/S
C38
C39
10U/12/Y/10V/S
10U/12/Y/10V/S
PLACE DIRECTLY
UNDERNEATH CHANNEL
A & B SECTION OF ASIC.
+VDDQ_BUS
CP8A
CP8B
8 1
7 2
0.01U/8P4C/X/25V/S
0.01U/8P4C/X/25V/S
+3.3V_BUS
D30
MMSZ5521B/2.4V/SOD123/S
+VDDC
2 1
CP2D
5 4
0.01U/8P4C/X/25V/S
At the corner of VDDC plane
CP8C
CP8D
6 3
5 4
0.01U/8P4C/X/25V/S
0.01U/8P4C/X/25V/S
2
C23
10U/12/Y/10V/S
U1E
F27
VSS
F7
G12
G16
G21
G24
G9
H12
H14
H16
H18
H21
H23
H27
H4
H8
H9
K1
K23
K24
K30
K7
K8
L4
M15
M16
M27
M30
M7
M8
N15
N16
N23
N24
P15
P16
P4
R12
R13
R14
R15
R16
R17
R18
R19
R23
R24
R27
R30
R7
R8
T1
T12
T13
T14
T15
T16
T17
T18
T19
W23
W24
W25
W26
W7
W8
Y4
Part 5 of 5
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
RV280
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
CORE
GND
Title
Size Document Number Rev
Custom
Date: Sheet of
U15
VSS
U16
VSS
U23
VSS
U4
VSS
U8
VSS
V15
VSS
A10
VSS
A16
VSS
A2
VSS
A22
VSS
A29
VSS
AA27
VSS
AA30
VSS
AB1
VSS
AB23
VSS
AB24
VSS
AB4
VSS
AB7
VSS
AB8
VSS
AC12
VSS
AC14
VSS
AC16
VSS
AC18
VSS
AC27
VSS
AC4
VSS
AD12
VSS
AD16
VSS
AD18
VSS
AD25
VSS
AD30
VSS
AE26
VSS
AE28
VSS
AG11
VSS
AG16
VSS
AG18
VSS
AG21
VSS
AG5
VSS
AG7
VSS
AJ1
VSS
AJ30
VSS
AK2
VSS
AK29
VSS
B3
VSS
C1
VSS
C28
VSS
C30
VSS
C4
VSS
D12
VSS
D13
VSS
D15
VSS
D18
VSS
D21
VSS
D24
VSS
D25
VSS
D27
VSS
D5
VSS
D7
VSS
D9
VSS
E4
VSS
E6
VSS
V16
VSS
V27
VSS
V30
VSS
W15
VSS
W16
VSS
GIGABYTE
RV280 Power
GV-R92128DH
1
4 20Wednesday, July 02, 2003
1.0
+VDDC
+MPVDD
C52
4.7U/12/Y/16V
>=6.3V
Ceramic
C53
0.1U/6/Y/25V/S
X7R
+3.3V_BUS +VDDC_CT
R1281
0/8/S
C1209
0.1U/6/Y/25V/S
B17 200/8/0.2A/S
C66
4.7U/12/Y/16V
>=6.3V
Ceramic
Matching
Ground
AVSSDI
A2VSSDI
(Digital)(Quiet)
+VDDC
CP9A
8 1
0.01U/8P4C/X/25V/S
+PVDD
GND_PVSS
R1282
0/8/S/X
C1210
4.7U/8/Y/10V/S
+VDDC_CT
CP9D
CP3A
CP3C
CP9B
CP9C
7 2
6 3
0.01U/8P4C/X/25V/S
0.01U/8P4C/X/25V/S
C54
4.7U/12/Y/16V
>=6.3V
Ceramic
CP3B
5 4
8 1
0.01U/8P4C/X/25V/S
0.01U/8P4C/X/25V/S
+VDDC
+3.3V_BUS
CP1A
8 1
0.01U/8P4C/X/25V/S
+MVDDQ +MVDDQ
CP5A
8 1
0.01U/8P4C/X/25V/S
+MVDDQ
+VDDC_CT
CP1C
6 3
0.01U/8P4C/X/25V/S
+VDDQ_BUS
C45
0.1U/6/Y/25V
X7R
Distributed around
+VDDQ_BUS plane
3
CP3D
6 3
7 2
5 4
0.01U/8P4C/X/25V/S
0.01U/8P4C/X/25V/S
0.01U/8P4C/X/25V/S
C27
C28
C26
0.1U/6/Y/25V/S
0.1U/6/Y/25V/S
X7R X7R X7R X7R X7R
0.1U/6/Y/25V/S
C44
CP1B
0.1U/6/Y/25V/S
7 2
0.01U/8P4C/X/25V/S
CP5D
CP5C
CP5B
5 4
6 3
7 2
0.01U/8P4C/X/25V/S
0.01U/8P4C/X/25V/S
0.01U/8P4C/X/25V/S
C32
C33
C34
0.1U/6/Y/25V/S
0.1U/6/Y/25V/S
X7R X7R X7R X7R
0.1U/6/Y/25V/S
C83
0.1U/6/Y/25V/SC56
CP1D
5 4
0.01U/8P4C/X/25V/S
X7R
C46
C47
0.1U/6/Y/25V/S
X7R X7R X7R X7R
0.1U/6/Y/25V/S
CP4B
CP4A
7 2
8 1
0.01U/8P4C/X/25V/S
0.01U/8P4C/X/25V/S
C29
0.1U/6/Y/25V/S
CP6A
CP6B
8 1
7 2
0.01U/8P4C/X/25V/S
0.01U/8P4C/X/25V/S
C35
0.1U/6/Y/25V/S
C48
C49
0.1U/6/Y/25V
0.1U/6/Y/25V
CP4C
6 3
0.01U/8P4C/X/25V/S
C30
0.1U/6/Y/25V/S
CP6C
6 3
0.01U/8P4C/X/25V/S
CP4D
5 4
0.01U/8P4C/X/25V/S
CP6D
5 4
0.01U/8P4C/X/25V/S
U1D
P18
VDDC
P19
U12
U13
U14
U17
+MVDDQ
+VDDC_CT
GND_A2VSSN
(80mA)
U18
U19
V12
V13
V14
V17
V18
V19
W12
W13
W14
W17
W18
W19
H10
H13
H15
H17
H19
H22
J1
J23
J24
J27
J4
J7
J8
L8
M4
N4
N7
N8
R1
R4
T4
T7
T8
E27
F4
G10
G13
G15
G22
G7
L23
H20
H11
P8
Y8
AC11
AC20
AK19
AE19
AE20
AF20
AG20
AJ19
AF18
AF19
AE18
AE17
AJ12
AH12
AF14
AE14
AG14
AG13
AG12
AF21
AF22
AH21
AF24
AE23
AE21
AE22
AG22
AH22
GND_A2VSSQ
Matching
Ground
AVSSN
(Noisy)
AVSSQ
D D
C C
+3.3V_BUS
D31
MMSZ5521B/2.4V/SOD123/S
2 1
C55
100U/D/10V/57
0.1U/6/Y/25V/S
>=6.3V
X7R
+TPVDD
C58
C57
DNI
4.7U/12/Y/16V/S
>=6.3V
+VDDC_CT
C62
0.1U/6/Y/25V/S
X7R
>=6.3V
Ceramic
Ceramic
B16 200/8/0.2A/S
C59
4.7U/12/Y/16V/S
>=6.3V
Ceramic
+A2VDDQ
C63
4.7U/12/Y/16V
GND_A2VSSQ
B B
+A2VDD
C61
4.7U/12/Y/16V/S
>=6.3V
Ceramic
GND_A2VSSN
A A
GND_TPVSS
C64
0.1U/6/Y/25V/S
X7R
Board power
and ground
option(s)
5
DNI
0.1U/6/Y/25V/S
X7R
C77
C60
0.1U/6/Y/25V/S
100P/6/N/50V/S/X
X7R
X7R
DNI
+AVDD
C68
C67
0.1U/6/Y/25V/S
4.7U/12/Y/16V
>=6.3V
X7R
Ceramic
GND_AVSSN
+AVDD
Pin Names
Voltage
DAC1 VDD A2VSSQ
Usage
DAC1 Band Gap Ref.
AVDD sourced from VDDC_CT
thru bead at least 15 mil trace
and not longer than 1.5 inch.
AVSSN and AVSSQ with single
via to GND close to the pin.
Part 4 of 5
VDDC
VDDC
VDDC
VDDC
VDDC
VDDC
VDDC
VDDC
VDDC
VDDC
VDDC
VDDC
VDDC
VDDC
VDDC
VDDC
VDDC
VDDC
VDDC
VDDR1
Memory I/O Power
VDDR1
(1.8V/2.5V/3.3V)
VDDR1
VDDR1
VDDR1
VDDR1
VDDR1
VDDR1
VDDR1
VDDR1
VDDR1
VDDR1
VDDR1
VDDR1
VDDR1
VDDR1
VDDR1
VDDR1
VDDR1
VDDR1
VDDR1
VDDR1
VDDR1
VDDR1
VDDR1
VDDR1
VDDR1
VDDR1
VDDR1
VDDR1
I/O level shift power
(1.8V)
VDDC18
VDDC18
VDDC18
VDDC18
VDDC18
VDDC18
VDDC18
NC
VDDC18
VDDC18
NC
NC
NC
NC
NC
NC
NC
(1.8V)
TMDS PLL TMDS I/O
TPVDD
TPVSS
TXVDDR
TXVDDR
(1.8V)
TXVSSR
TXVSSR
TXVSSR
Analog Display Power,
A2VDD
see table below
A2VDD
A2VDDQ
AVDD
AVDD
A2VSSN
A2VSSN
A2VSSDI
A2VSSQ
RV280
+A2VDD
2.5V1.8V
DAC2 VDD
(120mA)
(1) A2VDD regulated source
and A2VSSN return path routed
with at least 15 mil trace and
not longer than 1.5 inch.
AVSSN with single via to GND
at the regulator.
(2) Sourced from VDD thru bead
instead of the regulator
I/O
Matching
Ground
A2VSSN
(Noisy)
AC13
VDDC
AC15
VDDC
AC17
VDDC
AD13
VDDC
AD15
VDDC
M12
VDDC
M13
VDDC
M14
VDDC
M17
VDDC
M18
VDDC
M19
VDDC
N12
VDDC
N13
VDDC
N14
VDDC
N17
VDDC
N18
VDDC
N19
VDDC
P12
VDDC
P13
VDDC
P14
VDDC
P17
VDDC
A15
VDDR1
A21
VDDR1
AA7
VDDR1
AA8
VDDR1
D11
VDDR1
D14
VDDR1
D17
VDDR1
D8
VDDR1
V4
VDDR1
A28
POWER
VDDR1
A3
VDDR1
A9
VDDR1
AA1
VDDR1
AA4
VDDR1
AD4
VDDR1
B1
VDDR1
B30
VDDR1
D10
VDDR1
D19
VDDR1
D20
VDDR1
D23
VDDR1
D26
VDDR1
D6
VDDR1
V7
VDDR1
V8
VDDR1
G19
VDDRH0
N6
VDDRH1
G18
VSSRH0
M6
VSSRH1
VDDRH1 - CH B Clock PowerAGP Bus I/O Power
VDDRH0 - CH A Clock Power
(VDDR1)
A7
MPVDD
A6
MPVSS
AK27
PVDD
AK28Y23
PVSSVDDC18
PLL MPLL
AC10
VDDR4
AC9
VDDR4
AD10
VDDR4
AD9
VDDR4
AG10
VDDR4
AD22
Ext. TMDS/
DVO Power
(1.8V/3.3V)
VDDR3
AC22
VDDR3
AC21
VDDR3
AD21
VDDR3
AC19
VDDR3
AD19
VDDR3
AD7
VDDR3
AC8
VDDR3
(3.3V)
GPIO & Ext.
TMDS I/O
Power
AA23
VDDP
AA24
VDDP
AB27
VDDP
AB30
VDDP
AC23
VDDP
AD27
VDDP
AE30
VDDP
AH30
VDDP
J30
VDDP
M23
VDDP
M24
VDDP
N27
VDDP
N30
VDDP
P23
VDDP
T23
VDDP
T24
VDDP
T27
(1.5V/3.3V) (1.8V) (1.8V)
VDDP
T30
VDDP
V23
VDDP
V24
VDDP
W27
VDDP
W30
VDDP
Y27
VDDP
AH24
AVDDDI
AH23
A2VDDDI
AJ24
AVSSQ
AG23
AVSSDI
AD24
AVSSN
AE24
AVSSN
+A2VDDQ
1.8V
DAC2 Band Gap Ref.
Source from AVDD thru bead.
A2VSSQ with sigle via to GND
close to the pin.
4
+MVDDQ
+3.3V_BUS
GND_AVSSQ
GND_AVSSN
Matching
Ground
(Quiet)
C51
0.1U/6/Y/25V
X7R
+VDDQ_BUS
TP9
C65
0.1U/6/Y/25V/S
X7R
+AVDDDI
+A2VDDDI
1.8V
Digital Power for
DAC1 and DAC2
Source from VDDC_CT
thru bead
GND_MPVSS
8
+5V_BUS
+12V_BUS
U28
2
Vcc
6
D D
C142
0.22U/8/Y/25V/X
>= 16V
Alternative 2
R258 51K/6
+PW_VDDC
R259 3K/6/S
SS_VDDC
COMP_VDDC
Fb_VDDC
C C
Regulator for VDDC (ASIC Core)
Vin = 3.3V AGP
Vout = 1.5V ~ 1.62V
Iout = 4A MAX (load consumption)
Iout = 2.5A MAX (Power rail consumption)
SS_VDDC
COMP_VDDC
Vc
7
Comp
4
GND
IRU3037CF/SO8/X
VDDC_IRU
Alternate part IRU3037ACS
R257 10K/6/S
MU28
2
OCSET
3
SS
4
COMP
5
FB
6
EN
7
GND
ISL6522CB/SO14
VDDC_ISL
Regulator for MVDDC (MEM Core)
Vin = 5V AGP or 12V AGP
Vout = 3.3V
Iout = 2.56A (320mA x 8) MAX, Burst Mode (load consumption)
Iout (5V) = 2A MAX (Power rail consumption)
B B
A A
Iout (12V) = 1A MAX (Power rail consumption)
ALT. 1: IRU REGULATOR
+MVDDC_S+MVDDC_B
U52
2
6
7
C116
2.2nF
R262
C721
100nF
ALT. 2: ISL REGULATOR
+MVDDC_S
R270 51K
R271 3K
C123
33pF
C121
220nF
C724
1nf
R772
75K
8
27K
R269 10K
MU32
2
OCSET
3
SS
4
COMP
5
FB
6
EN
7
GND
ISL6522CB
ISL6522CB : SOIC
4
IRU3037ACS
Alternate part IRU3037CS
Vcc
Vc
Comp
GND
VCCRT
PVCC
LGATE
PGND
BOOT
UGATE
PHASE
7
Alternative 1
5
HDrv
38
LDrvSS
1
Fb
VDDC_ISL
141
VCCRT
13
PVCC
12
LGATE
11
PGND
10
BOOT
9
UGATE
8
PHASE
5
HDrv
38
LDrvSS
1
Fb
141
13
12
11
10
9
8
7
+MVDDC_S
C141
0.22U/6/Y/16V/S
>= 16V
+PW_MVDDC_HGD
+PW_MVDDC_LGD
MVDDC_FB
+MVDDC_B
C140
0.22uF
R251 10/6
Q21
FAIRCHILD FDD6035AL/TO252/S
FAIRCHILD FDD6035AL/TO252/S
Fb_VDDC
ISL6522CB : SOIC
ISL6522CV : TSSOP
+PW_MVDDC_HGD
+PW_MVDDC_M
+PW_MVDDC_LGD
+PW_MVDDC_LGD
+PW_MVDDC_HGD
+PW_MVDDC_M
+MVDDC_B
MVDDC_FB
DO NOT USE MAXIM REGULATOR IF 12V INPUT IS USED!!!
6
L63 3uH/D/10A/1P/HORI
1 2
C110
0.001U/6/X/25V/S
Cc1
R254
1.5K/6/S
Rc4
71
2
53
6
4
R98
10K
+PW_VDDC
C102
0.1U/6/Y/25V/S
8
Q23B
ITF86110DK8T
Q22
2
1
3
2
1
3
R261 10R
C319 10nF
ALT. 3: MAXIM REGULATOR
C160
U42
10uF
R316
680K
C158
330pF
6
1
2
C159
3
3.3pF
9
10
MAX1954EUB
RES 0.1W 5% SM EIA(0805) T&R 620KFOR R316 USE 620K:
+3.3V_BUS
***
Q23A
ITF86110DK8T
ILIM
COMPFBDL
LX
BST
PGND
5
B21
60/18/6A/S
C101
1000U/D/6.3V/8C
Rc1
R253
1.02K/6/1/S
3240102100
1%
R255 1.21K/6/S/X
Rc2 Rc3
R256
1K/6/1/S
3240100100
1%
R317
1R
C162
2.2nF
+MVDDC_S
8
DH
6
5
IN
4
GND
7
5
*** ***
***
Cout1
DNI
L64 3.3uH
1 2
Rc2
Cc2
MVDDC_FB
**
C106
C107
470U/D/10V/AC
470U/D/10V/AC
**
*** **
+VDDC_CT
Placed close to
+VDDC output for EMI
+MVDDC_S
***
C115
100nF
C120
10nF
Cc1
R264
1.5K
Rc1
+PW_MVDDC_HGD
+PW_MVDDC_LGD
+PW_MVDDC_M
MVDDC_FB +PW_MVDDC_M
**
C108
100U/D/10V/57
+VDDC
C313
470uF_10V
R1
R263
1.00K
1%
0.8V Ref
R2
R266
324R
1%
4
+VDDC
C109
100U/D/10V/57
C113
0.1U/6/Y/25V
X7R
Change this cap
to 180uF 16V if
12V input is
used!
+MVDDC_S +MVDDC_B
4
3
Compensation Options for VDDC Regulator
Alt. Compensation 1
This compensation circuit is
simplified and will only work
with the IRU3037(A) Regulator
Alt. Compensation 2
This is required for the ISL6522CB
regulator, and provide maximum
regulation speed for IRU3037 Regultor
Cc2
Cout1
B731
60R
** **
C1034 and C317 are both
470uF caps on MVDDC.
Populate only one of
them.
Boot circuit
R500 0R
2 1
D6
RB501V-40
COMP_VDDC
C103
2.2N/6/X/25V/S/X
R252
VDDC_IRU
27K/6/S/X
Cc4
VDDC_IRU
Rc6
COMP_VDDC
C111
Cc3
33P/6/N/50V/S
C112
VDDC_ISL
0.01U/6/X/25V/S
VDDC_ISL
Fb_VDDC
R260
15K/6/S
Rc5
VDDC_ISL
470uF thru hole capacitor (P/N 4051047700)
has 30mR ESR where as 470uF SMT (P/N
4262047700) capacitor has 150mR ESR. For
current below 4.5A, 1 thru 470uF is enough.
***
Indicate number of via required for the
connection
+12V_BUS+5V_BUS
C118
22uF_16V
B732
60R
+MVDDC
****
C119
22uF_16V
+MVDDC
C114
100nF
X7R
***
***
C157
100nF
Some Part Ref's updated to 988 brd
3
Common
SS_VDDC
C104
0.22U/6/Y/16V
Note: Alternative
Compensation
Circuit 2 will only
work if Rc1 is a 1k
Ohm Resistor.
Alternative
Compensation
Circuit 1 has no
requirements for
the divider circuit.
Placed close to
+VDDC output
for EMI
C317
470uF_10V
0.8V Ref
2
Part
Alternative1
IRU3037
IRU3037A
ISL6522CB
Alternative2
Table for IRU3037 and IRU3037A with Alt.
Compensation Circuit 1
Part
IRU3037
1.25V Ref
IRU3037A
Table for IRU3037, IRU3037A and ISL6522 with Alt.
Compensation Circuit 2
Part
IRU3037
IRU3037A
ISL6522C
Compensation Circuit
Common, and Either Alt.
Compensation 1, or Alt.
Compensation 2
Common and Alt.
Compensation 2
Rc1 Rc2
887R 1%
0.9V
1.2V
1.25V
1.4V DNI
0.9V
1.2V 1.00K 1%
1.5V
0.9V
1.2V
1.25V
1.5V
0.9V
1.2V
1.25V
1.5V 1.00K 1%
DNI
DNI
110R 1%
1.00K 1%
DNI
511R 1%
6.49K 1%
6.49k 1% DNI1.5V 1.33K 1%
3240133100
3240649100
511R 1%
2.43K 1%
715R 1%1.62V
2.43K 1%
3250243100
3240715000
8.06K 1%
1.00K 1% DNI
2.00K 1%
976R 1% DNI1.62K 1%1.25V
1.78K 1%
1.00K 1%
1.00K 1% 1.15k 1%
Rc2
Rc1
DNI
1.00K 1%
1.00K 1%
DNI
1.00K 1%
DNI
1.00K 1%
4.99K 1%
8.06K 1%
1.00K 1%
2.00K 1%
1.00K 1%
1.00K 1%
1.78K 1%
1.15k 1%
Part NOTES
Do not install Cc1, Rc1
MAX1954
Install Cc2, Rc2
Do not install Cc2, Rc2
ISL6522
Install Cc1, Rc1
Part Vout R1 R2
MAX1954
ISL6522
1.5V
1.62V
1.00K 1% 1.10K 1%
ATI P/N 3240100100 ATI P/N 3240110100
1.00K 1%
ATI P/N 3240100100
ATI P/N 3240100100
2.8V
BGA Memory
3.3V
TSOP Memory
3.45V
TSOP Memory
Title
Size Document Number Rev
C
Date: Sheet of
2
1.00K 1%
ATI P/N 3240100100
1.00K 1% 324R 1%
ATI P/N 3240100100
1.00K 1%
ATI P/N 3240100100
GIGABYTE
Power_REG (VDDC/MVDDC)
GV-R92128DH
1
DO NOT INSTALLINSTALL
Cc4, Rc6
Alternative 2
Alternative1
Rc3
1.40K 1%
1.21K 1%
DNI
DNI
DNI
DNI
DNI
DNI
Rc3
1.56K 1%
11K 1%
DNI
DNI
DNI
DNI
DNI
DNI
976R 1%
ATI P/N 3240976000
475R 1%1.00K 1%2.5V
ATI P/N 3240475300
402R 1%
ATI P/N 3240402000
ATI P/N 3240332000
301 1%
ATI P/N 3240301000
5 20Wednesday, July 02, 2003
1
1.0
8
7
6
5
4
3
2
1
Regulator for VDDC_CT (Core Transform)
and AVDD/A2VDDQ/AVDDDI/A2VDDDI
TXVDDR, LVDDRx, MPVDD
Vin = 3.3V AGP
Vout = 1.8V
Iout = 350mA + 100mA + 50mA = 500mA MAX
D D
C C
B B
Iout = 600mA MAX (with PVDD/TPVDD)
1.9V
C129
100U/D/10V/57
>=6.3V
Rct1 Rct2
1K 3240100100
+3.3V_BUS
3 2
IN OUT
C131
0.1U/6/Y/25V/S
X7R
Regulator for PVDD (Core PLLs)
and optional TPVDD (TMDS PLLs)
Vin = 3.3V AGP
Vout = +1.8V
Iout = 25mA MAX (PVDD only)
Iout = 30mA MAX (PVDD + TPVDD)
+3.3V_BUS +VDDC_CT
3 2
The value of resistor were chosen to reduce failure rate caused by
possible defective regulators, i.e., 33R are used instead of 47R or
51R for more start up current. (3.465V - 1.8V) / 33R = 50.5mA
805 package resistor are required for sufficient power rating
(0.1W rating). (3.465V - 1.8V) * 50.5mA = 0.085W; therefore,
smaller resistor value would require 1206 package
603
REG22
LT1117CST/SOT223/S
ADJ
CASE
1
R284
33/8/S
Rvdd
REG25
SC431L/SOT23/S
1
2480009800
PVDD
Rvdd
422R1.8V
3240422000 603
499R 3240499000 603
+VDDC_CT
4
R282
1K/6/1/S
Rct1
1%
R278
499/6/1/S
Rct2
1%
+PVDD
R287
681/6/1/S
1%
PVDD
4
NC
1
NC
R290
2
1.5K/6/1/S
1%
PVDD
GND_PVSS GND_MPVSS
C126
100U/D/10V/57
>=6.3V
DNI
B23
200/8/0.2A/S/X
PVDD_VDDC18
5 3
MRG25
SC431LC5SK-1/S/X
ALT
C1207
0.1U/6/Y/25V/S/X
DNI
Regulator for MVDDQ (MEM IO)
Vin = 3.3V AGP
Vout = 2.5V (TSOP)
Iout = 1200mA MAX
Iout = 1000mA Est. MAX
Q25 Pin2/4 should be soldered to board for
heat dissipation and a GND fill area.
C130
22U/12/Y/10V
>=6.3V
C132
0.1U/6/Y/25V
X7R
REG23
SC431L/SOT23/S
1
2480009800
3 2
Regulator for MPVDD (Memory PLLs)
Vin = 3.3V AGP
Vout = +1.8V
Iout = 10mA MAX
(Optional)
+VDDC_CT+3.3V_BUS +MPVDD
R285
33/8/S/X
REG26
SC431L/SOT23/S/X
1
2480009800
MPVDD
3 2
Rvdd
Rvdd
R288
681/6/1/S/X
1%
MPVDD
R291
1.5K/6/1/S/X
1%
MPVDD
4
1
2
NC
NC
B24
200/8/0.2A
MPVDD_VDDC18
MRG26
SC431LC5SK-1/S/X
ALT
5 3
+3.3V_BUS
4
1
Q25
MTD3055V/TO252/S
2021305500
32
R281
2K/6/S
and VDDR1
+12V_BUS
C136
0.1U/6/Y/25V/S
4
NC
1
NC
2
5 3
C1208
0.1U/6/Y/25V/S/X
DNI
Placed close to
+MVDDQ
/.25W
R277
470/1206/S
MRG23
SC431LC5SK-1/S/X
ALT
R279
4.75K/6/1/S
1%
R283
4.75K/6/1/S
1%
Rq1
Rq2
+MVDDQ output
for EMI
C127
1000U/D/6.3V/8C
+MVDDQ
Regulator For TPVDD (TMDS PLLs)
Vin = +3.3V AGP
Vout = 1.8V
Iout = 15mA MAX
TPVDD might not be
needed if PVDD can
provide stable 1.8V
(Optional)
+VDDC_CT+TPVDD
B25
200/8/0.2A/S
TPVDD_PVDD
TPVDD = TPVDD + LPVDD + TXVDDR
C133
100nF
X7R
Regulator for MVDDC
Vin = 5V
Vout = 3.4V 2A MAX
Q34 Pin2/4 should be soldered to
board for heat dissipation and a
GND fill area.
+MVDDC_Source
4
Q34
MTD3055V/TO252/S
C1036
0.1U/6/Y/25V
MREG5
SC431L/SOT23/S
3 2
R959
2K/6/S
32
1
C1037
0.1U/6/Y/25V/S
C1035
100U/D/10V/57
>= 10V
1
These dummy resistors are placed under
the diodes to avoid PCB heat damage due
to hot diodes.
D10
+5V_BUS
21
1N5400/D/DO201AD/3A/50V
D11
21
1N5400/D/DO201AD/3A/50V
+12V_BUS
R949
470/1206/S
REG18
SC431LC5SK-1/S/X
4
NC
1
NC
2
5 3
Regulator For A2VDD (2nd DACs)
Vin = +3.3V AGP
Vout = 2.5V
Iout = 150mA MAX
+A2VDD
+3.3V_BUS
REG24
1
VIN
3
SHDN
C139
0.1U/6/Y/25V/S
X7R
A2VDD and A2VSSN routed with at least 15
mil trace and not longer than 1.5 inch.
A2VSSN with signle via to GND at the
regulator
BYPASS
GND
FAN2502S25/SOT23-5/S
2
2480004000
A2VDD
GND_A2VSSN
VOUT
5
4
R1261
0/1206
/.25W
ALT
C138
470P/6/N/50V/S/X
DNI
R1262
0/1206
C1033
0.1U/6/Y/25V
DNI
R958
4.99K/6/1/S
1%
R960
3.01K/8/1/S
1%
A2VDD might not be
needed if VDD can
provide stable 2.5V
TC1185
R1263
0/1206
MVDDC
3.34V
3.45V
+MVDDC
C1034
1000U/D/6.3V/8C
Rm1
Rm2
R1264
0/1206
4.32K
4.32K
Rm2Rm1
2.55K
2.43k
AVDD/A2VDDQ (1st DAC & 2nd DAC Band Gap)
A A
B27 200/8/0.2A/S
COMMON
+AVDD +A2VDDQ+VDDC_CT
B29 200/8/0.2A/S
COMMON
Some Part Ref's updated to 988 brd
Title
Size Document Number Rev
Custom
8
7
6
5
4
3
Date: Sheet of
2
GIGABYTE
Power_REG (MVDDQ/etc)
GV-R92128DH
6 20Wednesday, July 02, 2003
1
1.0
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