NSK70721PE.C2 Intel, NSK70721PE.C2 Datasheet - Page 47

• Manufacturer Part Number: NSK70721PE.C2
• Manufacturer: Intel

Specifications of NSK70721PE.C2

• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (min): 4.75V
• Operating Supply Voltage (max): 5.25V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 28
• Lead Free Status / RoHS Status: Supplier Unconfirmed

Datasheet
Notes:
1. (n,n,n) in each state indicates the status of bits ST2, ST1, and ST0 respectively.
2. MAT: Master Activation Timer.
3. MIT: Micro Interruption Timer.
4. S0 is a two level signal including Sync Word and Stuff symbols that can be user controlled. Signal is scrambled except
Sync Word and Stuffing bits.
5. S1 is a framed four level scrambled signal. Scrambler is driven by all 1’s signal and is disabled during sync words and
stuffing bits.
6. NM: Noise Margin.
Figure 19. Activation State Machine for Modes 6 & 7
Deactivation timer expires
Deactivated
LOS timer expires in Master Mode.
(1,0,1)
RX:off
TX:off
LOS: 0
Sync Word
Detected
TX:on (2B1Q Data)
1 in Slave Mode.
Deactivated State
Pending
Enhanced Multi-Rate DSL Data Pump Chip Set — SK70725/SK70721
MIT Expires
(1,0,0)
RX:on
RX:on (2B1Q Data)
TX:on (2B1Q Data)
NM >
-3 dB
Active-2 State
MAT Expires
(
0,1,1)
Loss of
Word
Sync
Timeout State
NM <
-6 dB
(1,1,1)
RX:on
TX:on
Inactive State
Sync Word Detected
(0,0,0)
RX:off
TX:off
Loss of Sync Word
MAT Expires
NM > -3 dB
One second wait timer
NM < -6 dB
in Slave Mode.
ACTREQ: 0
RX: Signal detect in Slave Mode
RX:on (2B1Q Data)
TX:on (2B1Q Data)
Active-1 State
Power ON Reset
TX:on (S0, S1)
(0,1,0)
Activating
(0,0,1)
RX:on
State
1 in Master Mode
ACTIVE:1
Frame Sync Word detected
in two consecutive frames.
0
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