SI5110 Datasheet, PDF (6/26 Pages) Silicon Laboratories – SiPHY™ OC-48/STM-16 SONET/SDH TRANSCEIVER

Si5110
Table 2. DC Characteristics (Continued)
(V_DD = 1.8 V ±5%, T_A = –40°C to 85°C)
Parameter
Symbol Test Condition Min
Typ
Max Unit
LVDS Common Mode Voltage
(RXDOUT, RXCLK1, RXCLK2,
TXCLK4OUT)
Input Impedance (TXDIN, TXCLK4IN,
REFCLK, RXDIN)
V_CM
1.125
—
1.275
V
R_IN
Each input to
42
50
58
Ω
common mode
Output Short to GND
(RXDOUT, RXCLK1, RXCLK2,
TXCLK4OUT, TXDOUT, TXCLKOUT)
I_SC(–)
—
25
TBD mA
Output Short to V_DD
(RXDOUT, RXCLK1, RXCLK2,
TXCLK4OUT, TXDOUT, TXCLKOUT)
I_SC(+)
TBD –100
—
µA
LVTTL Input Voltage Low
V_IL2
VDD33 = 3.3 V
—
—
0.8
V
(RXMSBSEL, RXCLK2DIV, RXCLK2DSBL,
RXSQLCH, REFSEL, LTR, RESET, MODE16
VDD33 = 1.8 V —
—
0.7
TXCLKDSBL, FIFORST, TXSQLCH,
BWSEL, TXMSBSEL, DLBK, LLBK, LPTM)
LVTTL Input Voltage High
V_IH2
VDD33 = 3.3 V
2.0
—
—
V
(RXMSBSEL, RXCLK2DIV, RXCLK2DSBL,
RXSQLCH, REFSEL, LTR, RESET, MODE16
VDD33 = 1.8 V 1.7
TXCLKDSBL, FIFORST, TXSQLCH,
BWSEL, TXMSBSEL, DLBK, LLBK, LPTM)
LVTTL Input Low Current
I_IL
(RXMSBSEL, RXCLK2DIV, RXCLK2DSBL,
RXSQLCH, REFSEL, LTR, RESET, MODE16
TXCLKDSBL, FIFORST, TXSQLCH,
BWSEL, TXMSBSEL, DLBK, LLBK, LPTM)
—
—
10
µA
LVTTL Input High Current
I_IH
(RXMSBSEL, RXCLK2DIV, RXCLK2DSBL,
RXSQLCH, REFSEL, LTR, RESET, MODE16
TXCLKDSBL, FIFORST, TXSQLCH,
BWSEL, TXMSBSEL, DLBK, LLBK, LPTM)
—
—
10
µA
LVTTL Input Impedance
R_IN
(RXMSBSEL, RXCLK2DIV, RXCLK2DSBL,
RXSQLCH, REFSEL, LTR, RESET, MODE16
TXCLKDSBL, FIFORST, TXSQLCH,
BWSEL, TXMSBSEL, DLBK, LLBK, LPTM)
10
—
—
kΩ
LVTTL Output Voltage Low
(LOS, RXLOL, FIFOERR, TXLOL)
V_OL2 VDD33 = 1.8 V
—
—
0.4
V
VDD33 = 3.3 V —
—
0.4
LVTTL Output Voltage High
(LOS, RXLOL, FIFOERR, TXLOL)
V_OH2 VDD33 = 1.8 V
1.4
—
—
V
VDD33 = 3.3 V 2.4
—
—
6
Preliminary Rev. 0.41