BT8222EPFF CONEXANT [Conexant Systems, Inc], BT8222EPFF Datasheet - Page 141

• Manufacturer Part Number: BT8222EPFF
• Description: ATM Transmitter/Receiver with UTOPIA Interface
• Manufacturer: CONEXANT [Conexant Systems, Inc]

CN8223
ATM Transmitter/Receiver with UTOPIA Interface
Figure 4-2. Line Interface Timing—DS1, E1, DS3, E3 External Framers
Table 4-4. Line Interface Timing—Internal Framers
100046C
NOTE(S):
(1)
(2)
Name
t copn
t txcki
t rxcki
t pnck
t ckpn
t rdck
t ckrd
t cico
t cod
t rxh
t txh
Nominal clock periods are: E3 –29.1 ns STS-3c – 6.4 ns
Duty cycle must be 45/55 at maximum input clock rate.
-
Interval
10–12
10–13
7–11
7–10
8–10
9–10
1–6
1–5
1–2
2–3
2–4
TXDATO (DS1/E1)
TXDATO (DS3/E3)
RXCKI,RXCKIHS
TXCKI,TXCKIHS
Transmit Clock Period
Transmit Clock Pulse Width High
Transmit Clock In to Clock Out Delay (non-inverted)
Transmit Clock Out to Transmit Data Out
Transmit Clock Out to Transmit Pos/Neg Out
Receive Clock Period
Receive Clock Pulse Width High
Receive Data Setup to Receive Clock Falling Edge
Receive Data Hold after Receive Clock Falling Edge
Receive Pos/Neg Setup to Receive Clock Falling Edge
Receive Pos/Neg Hold after Receive Clock Falling Edge
RXDATI
RXSYI
TXSYI
STS-1 –19.3 ns
E4 –7.2 ns
(1)
Description
Conexant
8
1
D3 – 22.4 ns
(2)
2
(2)
10
9
3
11
4
12
5
6
13
7
14
4.0 Electrical and Mechanical Specifications
Min
6.4
2.9
2.6
1.0
0.1
6.4
2.9
1.0
0.8
3.5
0
Max
10.0
4.3 Timing
4.0
1.0
—
—
—
—
—
—
—
—
4-7