MT90826AL Zarlink, MT90826AL Datasheet - Page 22

• Manufacturer Part Number: MT90826AL
• Description: Switch Fabric 4K x 4K/2K x 2K/1K x 1K 3.3V 160-Pin MQFP Tray
• Manufacturer: Zarlink

Specifications of MT90826AL

• Package: 160MQFP
• Number Of Ports: 32
• Fabric Size: 4K x 4K|2K x 2K|1K x 1K
• Switch Core: Non-Blocking
• Port Speed: 2.048|4.096|8.192|16.384 Mbps
• Operating Supply Voltage: 3.3 V

master clock
master clock
(16.384 MHz)
(16.384 MHz)
Offset Value
Offset Value
master clock
(16.384 MHz)
Offset Value
at 32 MHz
FEi Input
FEi Input
at 16 MHz
at 8 MHz
FEi Input
Internal
Internal
Internal
CLK
CLK
CLK
F0i
F0i
F0i
Figure 5 - Example for Frame Alignment Measurement
For 8 Mbps, 16 Mbps, 4&8 Mbps and 16&8 Mbps modes
0
0
0
Frame Boundary
1
For 4 Mbps and 2&4 Mbps modes
1
2
3
Zarlink Semiconductor Inc.
For 2 Mbps mode
1
4
2
MT90826
5
22
3
6
(FD[8:0] = 02
(FD9 = 1, sample at internal C8i high phase)
(FD[8:0] = 03
(FD9 = 0, sample at internal C16i low phase)
(FD[8:0] = 06
(FD9 = 0, sample at internal C32i low phase)
7
2
8
4
H
H
H
, frame offset of two C8i clock cycles)
9
, frame offset of three C16i clock cycles)
, frame offset of six C32i clock cycles)
10
5
11 12
3
6
13
14
7
15
4
16
8
Data Sheet