TXC-06312BIOG Transwitch Corporation, TXC-06312BIOG Datasheet - Page 88

• Manufacturer Part Number: TXC-06312BIOG
• Manufacturer: Transwitch Corporation

Specifications of TXC-06312BIOG

• Lead Free Status / Rohs Status: Supplier Unconfirmed

PRELIMINARY TXC-06312B-MB, Ed. 2
June 2005
PHAST-12N Device
DATA SHEET
TXC-06312B
REFTXCLK1
REFTXCLK2
REFRXCLK
TxRefSelect
The frequency of REFTXCLOCK1 is selectable:
The frequency of REFTXCLOCK2P/N is selectable:
The Rx timebase can be selected using control bits:
In case REFTXCLOCK2P/N is used as Rx timebase, the 622.08 MHz frequency (bypass
mode) is not supported.
In Line/Loop - Timing mode, it is mandatory to provide an external Rx clock source at
REFRXCLK. Its frequency is selectable:
Figure 27
clocks.
• The recovered 622.08 MHz clock in STM-4/OC-12 application (Line/Loop - Timing) (con-
• Any of the four recovered 155.52 MHz clocks in STM-1/OC-3 application (Line/Loop -
• 19.44 MHz
• 77.76 MHz
• 19.44 MHz
• 77.76 MHz
• 155.52 MHz
• 622.08 MHz (bypass mode)
• Either one of the two external Tx clock sources: REFTXCLK1 or REFTXCLK2P/N (External
• The external Rx clock source: REFRXCLOCK (Line/Loop - Timing) (control field RxRef-
• 19.44 MHz
• 77.76 MHz
trol field: LineTimingChannel and TimingMode, see
Bit
Timing) (control field: LineTimingChannel and TimingMode, see
ory Maps and Bit
Timing) (control field TxRefSelect, see
Select, see
Descriptions)
LINERXCLK1
LINERXCLK2
LINERXCLK3
LINERXCLK4
APSRXCLK
shows the relation between synthesized/recovered clocks and the reference
Figure 27. Clock Recovery/Clock Synthesis
Table 55
Descriptions)
LineTimingChannel
of the
-
RxRefSelect
Operation
Memory Maps and Bit
TimingMode
-
Table 55
RX PLL
TX PLL
of the
Descriptions)
Memory Maps and Bit
Table 55
Clock/Data
Synthesis
Recovery
Clock
of the
Table 55
Memory Maps and
Descriptions)
LINERXCLK1
of the
LINETXCLK
LINERXCLK2
LINERXCLK3
LINERXCLK4
APSRXCLK
8 8 o f 2 0 2
Mem-