ICS932S820C
RD890 System Clock for AMD-based Servers
Datasheet
Pin Description (Continued)
PIN #
PIN TYPE
DESCRIPTION
Complement clock of low power differential SRC clock pair. (no 50 ohm shunt resistor to GND and no 33 ohm
series resistor needed)
True clock of low power differential SRC clock pair. (no 50 ohm shunt resistor to GND and no 33 ohm series
resistor needed)
Complement clock of low power differential SRC clock pair. (no 50 ohm shunt resistor to GND and no 33 ohm
series resistor needed)
True clock of low power differential SRC clock pair. (no 50 ohm shunt resistor to GND and no 33 ohm series
resistor needed)
37
SRC0C_LPRS
SRC0T_LPRS
SRC1C_LPRS
SRC1T_LPRS
OUT
38
39
40
OUT
OUT
OUT
41
42
VDDSRC_3.3
GNDSRC
PWR
GND
Supply for SRC core and outputs, 3.3V nominal
Ground pin for the SRC outputs
Complement clock of low power differential SRC clock pair. (no 50 ohm shunt resistor to GND and no 33 ohm
series resistor needed)
True clock of low power differential SRC clock pair. (no 50 ohm shunt resistor to GND and no 33 ohm series
resistor needed)
Complement clock of low power differential SRC clock pair. (no 50 ohm shunt resistor to GND and no 33 ohm
series resistor needed)
True clock of low power differential SRC clock pair. (no 50 ohm shunt resistor to GND and no 33 ohm series
resistor needed)
Complement clock of low power differential SRC clock pair. (no 50 ohm shunt resistor to GND and no 33 ohm
series resistor needed)
True clock of low power differential SRC clock pair. (no 50 ohm shunt resistor to GND and no 33 ohm series
resistor needed)
43
44
45
46
47
48
SRC2C_LPRS
SRC2T_LPRS
SRC3C_LPRS
SRC3T_LPRS
SRC4C_LPRS
SRC4T_LPRS
OUT
OUT
OUT
OUT
OUT
OUT
49
50
GNDSRC
VDDSRC_3.3
GND
PWR
Ground pin for the SRC outputs
Supply for SRC core and outputs, 3.3V nominal
Complement clock of low power differential SRC clock pair. (no 50 ohm shunt resistor to GND and no 33 ohm
series resistor needed)
True clock of low power differential SRC clock pair. (no 50 ohm shunt resistor to GND and no 33 ohm series
resistor needed)
Complement clock of low power differential SRC clock pair. (no 50 ohm shunt resistor to GND and no 33 ohm
series resistor needed)
True clock of low power differential SRC clock pair. (no 50 ohm shunt resistor to GND and no 33 ohm series
resistor needed)
Complement clock of low power differential SRC clock pair. (no 50 ohm shunt resistor to GND and no 33 ohm
series resistor needed)
True clock of low power differential SRC clock pair. (no 50 ohm shunt resistor to GND and no 33 ohm series
resistor needed)
Complement clock of low power differential SRC clock pair. (no 50 ohm shunt resistor to GND and no 33 ohm
series resistor needed)
True clock of low power differential SRC clock pair. (no 50 ohm shunt resistor to GND and no 33 ohm series
resistor needed)
51
52
53
54
55
56
57
58
SRC5C_LPRS
SRC5T_LPRS
SRC6C_LPRS
SRC6T_LPRS
SRC7C_LPRS
SRC7T_LPRS
SRC8C_LPRS
SRC8T_LPRS
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
59
60
VDDSRC_3.3
GNDSRC
PWR
GND
Supply for SRC core and outputs, 3.3V nominal
Ground pin for the SRC outputs
Complement clock of low power differential SRC clock pair. (no 50 ohm shunt resistor to GND and no 33 ohm
series resistor needed)
True clock of low power differential SRC clock pair. (no 50 ohm shunt resistor to GND and no 33 ohm series
resistor needed)
Complement clock of low power differential SRC clock pair. (no 50 ohm shunt resistor to GND and no 33 ohm
series resistor needed)
True clock of low power differential SRC clock pair. (no 50 ohm shunt resistor to GND and no 33 ohm series
resistor needed)
Complement clock of low power differential SRC clock pair. (no 50 ohm shunt resistor to GND and no 33 ohm
series resistor needed)
True clock of low power differential SRC clock pair. (no 50 ohm shunt resistor to GND and no 33 ohm series
resistor needed)
61
62
63
64
65
66
SRC9C_LPRS
SRC9T_LPRS
SRC10C_LPRS
SRC10T_LPRS
SRC11C_LPRS
SRC11T_LPRS
OUT
OUT
OUT
OUT
OUT
OUT
67
68
GNDSRC
VDDSRC_3.3
GND
PWR
Ground pin for the SRC outputs
Supply for SRC core and outputs, 3.3V nominal
Complement clock of low power differential SRC clock pair. (no 50 ohm shunt resistor to GND and no 33 ohm
series resistor needed)
True clock of low power differential SRC clock pair. (no 50 ohm shunt resistor to GND and no 33 ohm series
resistor needed)
Complement clock of low power differential SRC clock pair. (no 50 ohm shunt resistor to GND and no 33 ohm
series resistor needed)
True clock of low power differential SRC clock pair. (no 50 ohm shunt resistor to GND and no 33 ohm series
resistor needed)
69
70
71
72
SRC12C_LPRS
SRC12T_LPRS
SRC13C_LPRS
SRC13T_LPRS
OUT
OUT
OUT
OUT
IDT® RD890 System Clock for AMD-based Servers
1671—02/28/11
3
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