HDMP-1685A TRx I/O Definition, continued
Name
Pin
Type
Signal
V
CC
A02
A10
C14
G04
J14
K16
L04
N15
R04
R14
R16
T03
T04
T14
U05
S
Power Supply: Normally 3.3 volts. Used for logic, SSTL inputs, and LVTTL I/O.
VCCA
VCR0
T09
S
S
Analog Power Supply: Normally 3.3 volts. Used to provide a clean supply line for the
PLLs and high-speed analog cells.
C04
D03
F03
A09
B07
C05
A13
A16
C11
C15
E14
G17
Rx SSTL2 Output Power Supply: Normally 3.3 volts. Used for all SSTL2 receiver
output buffer cells.
VCR1
VCR2
VCR3
VCP0
VCP1
VCP2
VCP3
T05
T07
T11
T13
S
S
High-Speed Output Supply: Normally 3.3 volts. Used only for the last stage
of the high-speed transmitter output cells (HS_OUT) as shown in Figure 10.
Due to high current transitions, this V should be well bypassed to a ground plane.
CC
GNDA
R08
Analog Ground: Normally 0 volts. All GND pads on the chip are connected to one
ground slug in the package, which then distributes these to GND balls.
16
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