TI380C60A Datasheet, PDF (10/16 Pages) Texas Instruments – CMOS TOKEN-RING INTERFACE DEVICE

TI380C60A
CMOS TOKEN-RING INTERFACE DEVICE
SPWS033 – DECEMBER 1996
electrical characteristics over recommended ranges of supply voltage and operating case
temperature (unless otherwise noted) (continued)
receiver input (RCV+ and RCV–)
PARAMETER
TEST CONDITIONS
MIN MAX UNIT
VT+
Rising input threshold voltage
VICM = VSB, See Notes 8 and 9,
and Figure 6
50 mV
VT–
Falling input threshold voltage
VAT
B Asymmetry threshold voltage, (VT+ + VT _–) 2
VICM = VSB,
VICM = VSB,
See Notes 8 and 9,
and Figure 6
See Notes 8 and 9,
and Figure 6
– 50
mV
– 15
15 mV
VCM+
VCM–
Rising input common-mode rejection
[VT+ (@VSB + 0.5 V) – VT+ (@VSB – 0.5 V)]
Falling input common-mode rejection
[VT– (@VSB + 0.5 V) – VT– (@VSB – 0.5 V)]
See Notes 8 and 9, and Figure 6
See Notes 8 and 9, and Figure 6
Both inputs at VSB,
See Note 8 and Figure 6
– 30
30 mV
– 30
30 mV
– 10
10
II(RCV) Receiver input current
Input under test at VSB + 1 V,
Other input at VSB – 1 V,
See Note 8 and Figure 6
10
60 _µA
Input under test at VSB – 1 V,
Other input at VSB + 1 V,
See Note 8 and Figure 6
– 10 –60
IEQB
Equalizer bias current
RCV+ at 4 V, RCV– at 1 V or
RCV+ at 1 V, RCV– at 4 V
See Figure 4d
1 2.2 mA
VEQW
NOTES:
Equalizer wrap voltage
WRAP = low, See Figure 4d
300 700 mV
8. VSB is the self-bias voltage of the input pair RCV+ and RCV–. It is defined as VSB = (VSB+ +VSB _–) / 2 (where VSB+ is the self-bias
voltage of RCV+; VSB _– is the self-bias voltage of RCV–). The self-bias voltage of both pins is approximately VDD / 2.
9. VICM is the common-mode voltage applied to RCV+ and RCV–.
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