XRT7302IQ80 View Datasheet(PDF) - Exar Corporation
Part Name
Description
MFG CO.
'XRT7302IQ80' PDF : 77 Pages View PDF
XRT7302 2 CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
áç
REV. 1.1.0
ELECTRICAL CHARACTERISTICS (CONTINUED), (TA = 250C, VDD = 5V + 5%, UNLESS OTHERWISE SPECIFIED)
LINE SIDE PARAMETERS DS3 APPLICATION
Transmit Characteristics (see Figure 2)
SYMBOL
PARAMETER
MIN.
TYP.
MAX
UNITS
Jitter Tolerance @ Jitter Frequency = 1kHz
64
UI
Jitter Tolerance @ Jitter Frequency = 10kHz
5
UI
Jitter Tolerance @ Jitter Frequency = 800kHz
0.4
UI
(1) Measured at nominal DSX3 level, Equalizer
enabled, VDD = 5V TA = 25°C
ELECTRICAL CHARACTERISTICS (CONTINUED), (TA = 250C, VDD = 5 + 5%, UNLESS OTHERWISE SPECIFIED)
MICROPROCESSOR SERIAL INTERFACE TIMING (SEE FIGURE 4)
SYMBOL
PARAMETER
t21 CS Low to Rising Edge of SClk Setup Time
MIN.
50
TYP.
MAX
UNITS
ns
t22 CS High to Rising Edge of SClk Hold Time
20
ns
t23 SDI to Rising Edge of SClk Setup Time
50
ns
t24 SDI to Rising Edge of SClk Hold Time
50
ns
t25 SClk "Low" Time
t26 SClk "High" Time
t27 SClk Period
t28 CS Low to Rising Edge of SClk Hold Time
t29 CS "Inactive" Time
t30 Falling Edge of SClk to SDO Valid Time
t31 Falling Edge of SClk to SDO Invalid Time
t32 Falling Edge of SClk, or rising edge of CS to High Z
t33 Rise/Fall time of SDO Output
240
ns
240
ns
500
ns
50
ns
250
ns
200
ns
100
ns
100
ns
40
ns
22
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