DS91M124

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SNLS287E – AUGUST 2008 – REVISED APRIL 2013

DC Electrical Characteristics (continued)

Over supply voltage and operating temperature ranges, unless otherwise specified.

(1)(2)(3)(4)

Parameter

Test Conditions

Min

Typ

Max

Units

IB(OFF)

Driver High-Impedance Output Power-Off Current

VA = 3.8V, VB = 1.2V

μA

DEn = 0V

0

32

0V

≤ VDD ≤ 1.5V

VA = 0V or 2.4V, VB = 1.2V

μA

DEn = 0V

−20

20

0V

≤ VDD ≤ 1.5V

VA = −1.4V, VB = 1.2V

μA

DEn = 0V

−32

0

0V

≤ VDD ≤ 1.5V

IAB(OFF)

Driver High-Impedance Output Power-Off Current

VA = VB, −1.4V ≤ V ≤ 3.8V

μA

(IA(OFF) − IB(OFF))

DEn = 0V

−4

4

0V

≤ VDD ≤ 1.5V

CA

Driver Output Capacitance

7.8

pF

CB

Driver Output Capacitance

7.8

pF

VDD = 0V

CAB

Driver Output Differential Capacitance

3

pF

CA/B

Driver Output Capacitance Balance (CA/CB)

1

ICCL

Loaded Supply Current Enabled

RL = 50Ω (All Outputs)

DI = VDD or GND

65

75

mA

DEn = VDD or GND (All

Outputs)

ICCZ

No Load Supply Current Disabled

DI = VDD or GND,

19

24

mA

DEn = GND (All Outputs)

Switching Characteristics

Over supply voltage and operating temperature ranges, unless otherwise specified.

(1) (2) (3)

Parameter

Test Conditions

Min

Typ

Max

Units

tPHL

Differential Propagation Delay High to Low

1.8

3.9

6.5

ns

tPLH

Differential Propagation Delay Low to High

1.8

3.9

6.5

ns

tSKD1

Differential Pulse Skew |tPHL − tPLH|

(4) (5)

0

25

100

ps

RL = 50Ω

tSKD2

Channel-to-Channel Skew (4) (6)

0

70

250

ps

CL = 5 pF,

CD = 0.5 pF

tSKD3

Differential Part-to-Part Skew (4) (7)

0

1.5

2

ns

Figure 7

(Constant TA and VDD)

Figure 8

tSKD4

Differential Part-to-Part Skew (4) (8)

0

4.7

ns

tTLH

Rise Time (4)

1.1

2.0

3.0

ns

tTHL

Fall Time (4)

1.1

2.0

3.0

ns

tPHZ

Disable Time High to Z

6

11

ns

RL = 50Ω

CL = 5 pF,

tPLZ

Disable Time Low to Z

6

11

ns

CD = 0.5 pF

tPZH

Enable Time Z to High

6

11

ns

Figure 9

Figure 10

tPZL

Enable Time Z to Low

6

11

ns

fMAX

Maximum Operating Frequency (4)

125

MHz

(1)

The Electrical Characteristics tables list ensured specifications under the listed Recommended Operating Conditions except as

otherwise modified or specified by the Electrical Characteristics Conditions and/or Notes. Typical specifications are estimations only and

are not ensured.

(2)

Typical values represent most likely parametric norms for VDD = +3.3V and TA = +25°C, and at the Recommended Operation Conditions

at the time of product characterization and are not ensured.

(3)

CL includes fixture capacitance and CD includes probe capacitance.

(4)

Specification is ensured by characterization and is not tested in production.

(5)

tSKD1, |tPLHD − tPHLD|, Pulse Skew, is the magnitude difference in differential propagation delay time between the positive going edge and

the negative going edge of the same channel.

(6)

tSKD2, Channel-to-Channel Skew, is the difference in propagation delay (tPLHD or tPHLD) among all output channels.

(7)

tSKD3, Part-to-Part Skew, is defined as the difference between the minimum and maximum differential propagation delays. This

specification applies to devices at the same VDD and within 5°C of each other within the operating temperature range.

(8)

tSKD4, Part-to-Part Skew, is the differential channel-to-channel skew of any event between devices. This specification applies to devices

over recommended operating temperature and voltage ranges, and across process distribution. tSKD4 is defined as |Max − Min|

differential propagation delay.

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