QT2022/32 - Data Sheet: DS3051
Table 3: QT2022/32 Ball Assignment & Signal Description
Ball
Signal Name
Dir.
Type
Description
CML Outputs
N6
N7
TXOUTP
TXOUTN
O
CML
CML
CML
CML
CML
CML
CML
9.95 - 10.5Gb/s transmit differential voltage outputs.
100Ω differential impedance.
D14
D13
RxXAUI0P
RxXAUI0N
O
3.125 Gb/s differential output data from QT2022/32 to XAUI interface - lane
0
A14
B14
RxXAUI1P
RxXAUI1N
O
3.125 Gb/s differential output data from QT2022/32 to XAUI interface - lane
1
A12
B12
RxXAUI2P
RxXAUI2N
O
3.125 Gb/s differential output data from QT2022/32 to XAUI interface - lane
2
A10
B10
RxXAUI3P
RxXAUI3N
O
3.125 Gb/s differential output data from QT2022/32 to XAUI interface - lane
3
G13
G14
RXPLLOUTP
RXPLLOUTN
O
Clock output from receive input data PLL
Used for monitoring only. Leave unconnected.
P1
P2
TXPLLOUTP
TXPLLOUTN
(REFCLK2P,
REFCLK2N)
O/I
Configurable as either a differential transmit clock driver (default) or as a
reference clock input instead of EREFCLK (with MDIO bit 1.C001h.7=1).
The output clock frequency is controlled by MDIObit 1.C001h.2. The default
frequencies are:
With XFP=1: divide-by-64, can be used as reference clock to the XFP
module; 161.13 MHz (10GE) or 164.355 MHz (10GFC)
With XFP=0: divide-by-66; 156.25MHz (10GE) or 159.375 (10GFC)
Enabling the driver circuitry is controlled by MDIO bit 1.C001h.3. By default:
With XFP=1, the driver is enabled
With XFP=0, the driver is disabled
Note: for the case where the pin is configured as a reference clock input, the
driver circuitry is disabled.
H1
H2
VCXOCTLP
VCXOCTLN
O
CML
QT2032:
Output of phase-frequency detector which drives the external loop filter as
part of the VCXO control.
QT2022:
Unused. Leave unconnected.
CML Inputs
F1
F2
EREFCLKP
EREFCLKN
I
I
CML
CML
LAN reference clock input for fiber-side TXPLL.
156.25 MHz (10GE) or 159.375 (10GFC)
On chip 50Ω terminations to 1.2V. Requires external AC coupling.
M1
M2
SREFCLKP
SREFCLKN
QT2032:
SONET reference clock input for fiber-side TXPLL in WAN-mode
155.52MHz or 622.08MHz selected by REFSEL622 pin;
AC coupled with on chip 50Ω terminations to 1.2V
QT2022:
Unused. Leave unconnected.
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