S2004TB Applied Micro Circuits Corporation, S2004TB Datasheet - Page 15

• Manufacturer Part Number: S2004TB
• Manufacturer: Applied Micro Circuits Corporation

Specifications of S2004TB

• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 3.13V
• Operating Supply Voltage (max): 3.47V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 208
• Lead Free Status / RoHS Status: Not Compliant

When TCLKA is the output clock source, REFCLK
and TCLKA must equal the parallel word rate
(CLKSEL = Low). Additionally, the recovered clocks
and the clock input on TCLKA must be frequency
locked in order to avoid overflow/underflow of the
internal FIFOs. The propagation delay between
TCLKA and DOUTx, listed in Table 21, shows that
the phase delay between TCLKA and the RCxP/N
outputs may vary more than a bit time based on
process variation.
The recommended clocking configuration for exter-
nal clocking mode (REFCLK input clocking) is shown
in Figure 10. TCLKA is sourced from TCLKO, which
is frequency locked to the Reference clock input.
October 10, 2000 / Revision D
QUAD SERIAL BACKPLANE DEVICE
Table 8A. S2004 Data Clocking
C
H
_
L
0
0
1
1
O
C
K
Figure 10. External Receiver Clocking
T
M
O
0
1
0
1
D
E
Controller/MAC
ASIC/FPGA
OSCILLATOR
REF
n I
p
t u
R
R
C
T
T
E
E
o l
C
C
F
F
L
c
L
C
C
K
k
K
Parallel Data
L
L
A
x
S
K
K
Table 8. Output Clock Mode (TMODE = 1)
o
H
u
F
c r
a
l l u
2
f l
e
C
C
TCLKO
M
TCLKA
RCxP/N
o l
o l
REFCLK
o
k c
k c
d
e
M
M
SerDes
o
o
PLL
d
d
e
e
O
Recovered
u
p t
Clock
C
t u
M
T
T
C
O
0
1
R
C
R
C
o l
D
C
L
L
C
c
K
K
E
A
x
k
A
A
S
o
u
R
c r
C
x
V
V
e
C
C
P
O
O
N /
2 /
1 /
S2004
F
0
0
e r
q
15