SLK2511C_13 Datasheet, PDF (14/22 Pages) Texas Instruments – OC-48/24/12/3 SONET/SDH MULTIRATE TRANSCEIVER

SLK2511C
SLLS886 – DECEMBER 2008............................................................................................................................................................................................ www.ti.com
TIMING REQUIREMENTS
over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS
REFERENCE CLOCK (REFCLK)
Frequency tolerance⁽¹⁾
Duty cycle
Jitter
12 kHz to 20 MHz
PLL PERFORMANCE SPECIFICATIONS
PLL startup lock time
Acquisition lock time
V_DD, V_DDC = 2.3 V, after REFCLK is stable
Valid SONET signal or PRBS OC-48
SERIAL TRANSMITTER/RECEIVER CHARACTERISTICS
V_(ODD) = |STXDOP-STXDON|, transmit
differential output voltage under
de-emphasis
PRE1 = 0, PRE2 = 0, Rt = 50,
See Table 5 and Figure 1
PRE1 = 1, PRE2 = 0
PRE1 = 0, PRE2 = 1
PRE1 = 1, PRE2 = 1
V_(CMT) Transmit common mode voltage range
Receiver Input voltage requirement,
V_ID=|SRXDIP–SRXDIN|
V_(CMR) Receiver common mode voltage range
I_l
Receiver input leakage
R_l
Receiver differential impedance
C_I
Receiver input capacitance
t_{d(TX_Laten}
cy)
t_{d(RX_Late}
ncy)
Rt = 50Ω
MIN TYP MAX UNIT
–20
40%
50%
20
60%
3
ppm
ps rms
2031
1 ms
Bit Times
650 850 1000
550 750 900 _mV
540 700 860
500 650 800
1100 1250 1400 mV
150
mV
1100
-550
80
1250
100
2250 mV
550 µA
120 Ω
1 pF
50
Bit Times
50
(1) The ±20 ppm tolerance is required to meet SONET/SDH requirements. For non-SONET/SDH compliant systems, looser tolerances may
apply.
SERIAL DIFFERENTIAL SWITCHING CHARACTERISTICS
over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS
t_t Differential signal rise time (20% to 80%) R_L = 50Ω
t_j Output jitter
Jitter-free data, 12 kHz to 20 MHz, RLOOP = 1
Jitter tolerance
RLOOP = 1, See Figure 2, Figure 12
Jitter transfer
RLOOP = 1, See Figure 2
MIN TYP MAX UNIT
80 100 140 ps
0.05
0.1 UI_(pp)
14
Submit Documentation Feedback
Product Folder Link(s): SLK2511C
Copyright © 2008, Texas Instruments Incorporated