TNETE2101 Datasheet, PDF (31/39 Pages) Texas Instruments – 10BASE-T/100BASE-TX/100BASE-FX LOW-POWER PHYSICAL-LAYER INTERFACE

recommended operating conditions
VDD, VDDA, XMT_VDDA
VDD5
Supply voltage
Reference voltage
VI
Input voltage
VO
Output voltage
VIH
VIL
VTTP
Rt
High-level input voltage
Low-level input voltage
Termination voltage
Differential-termination resistance
TNETE2101
10BASE-T/100BASE-TX/100BASE-FX
LOW-POWER PHYSICAL-LAYER INTERFACE
SPWS032D – JANUARY 1997 – REVISED MARCH 1999
TTL
5-V TTL
PECL
TTL, 5-V TTL
PECL
LED
TTL
5-V TTL
PECL
TTL, 5-V TTL
PECL
PECL
PECL
MIN
3
4.5
0
0
VTTP
0
VTTP
0
2
2
VDD – 1.35
0
VDD – 2
NOM
3.3
5
VDD – 2
50
MAX
3.6
5.5
VDD
5.5
VDD – 0.5
VDD
VDD – 0.5
VDD
VDD
5.5
VDD – 0.70
0.8
VDD – 1.55
UNIT
V
V
V
V
V
V
V
Ω
electrical characteristics over recommended operating conditions
PARAMETERS
TEST CONDITIONS
VOH High-level output voltage
VOL Low-level output voltage
VID Differential input voltage
IIL
Low-level input current
IIH
High-level input current
IOZ High-impedance-state output current
IDD Supply current, 3.3 V (see Note 4)
IOH = –4 mA
50 Ω to VDD–2
VDD = min, TC = max
50 Ω to VDD–2
IOL = 4 mA
VI = VIL(min)
VI = VIH(max)
100BASE-TX,
Power down
TTL, 5-V TTL
PECL
LEDs (see Note 3)
PECL
TTL, 5-VTTL
PECL
TTL, 5-V TTL, PECL
TTL, PECL
TTL, LED, PECL
Full duplex
Ci
Co
NOTES:
Capacitive input
Capacitive output
3. LACTIVITY, LDUPCOL, LLINK, LSPEED
4. Typical values measured at 25°C without LEDs connected
MIN TYP MAX UNIT
2.4
V
1.50
2.30
0.8
0.20
0.30 V
0.4
1.20
2.10 V
20 µA
–20 µA
–20 µA
200
mA
20
6
pF
6
pF
oscillator requirements
PARAMETERS
Clock frequency
Clock frequency error
Clock duty cycle
VOH
VOL
tr, tf (see Note 5)
NOTE 5: Measured at 20%–80% transition low-to-high or high-to-low points
MIN
–50
40
2.85
–0.50
TYP MAX UNIT
20
MHz
50 ppm
60 %
VDD V
0.80 V
5 ns
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