SN65LVDS048A

LVDS QUAD DIFFERENTIAL LINE RECEIVER

SLLS451B– SEPTEMBER 2000 – REVISED SEPTEMBER 2002

4

POST OFFICE BOX 655303

switching characteristics over recommended operating conditions (unless otherwise noted) (see

Notes 7)

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

tPHL

Differential propagation delay, high-to-low

1.9

2.7

3.7

ns

tPLH

Differential propagation delay, low-to-high

1.9

2.9

3.7

ns

tSK(p)

Differential pulse skew (tPHLD – tPLHD) (see Note 8)

200

450

ps

tSK(o)

Differential channel-to-channel skew; same device (see Note 8)

CL = 15 pF

VID 200 mV

50

500

ps

tSK(pp)

Differential part-to-part skew (see Note 10)

VID = 200 mV

(see Figure 1 and 2 )

1

ns

tSK(lim) Differential part-to-part skew (see Note11)

(see Figure 1 and 2 )

1.5

ns

tr

Rise time

0.5

1

ns

tf

Fall time

0.5

1

ns

tPHZ

Disable time high to Z

8

9

ns

tPLZ

Disable time low to Z

RL = 2 K Ω

CL 15 pF

6

8

ns

tPZH

Enable time Z to high

CL = 15 pF

(see Figure 3 and 4 )

8

10

ns

tPZL

Enable time Z to low

(see Figure 3 and 4 )

7

8

ns

f(MAX)

Maximum operating frequency (see Note 12)

All channels switching

200

250

MHz

† All typical values are at 25

°C and with a 3.3-V supply.

NOTES:

7. Generator waveform for all tests unless otherwise specified: f = 1 MHz, ZO = 50 Ω, tr and tf (0% – 100%) ≤ 3 ns for RIN.

8. tSK(p)|tPLH – tPHL| is the magnitude difference in differential propagation delay time between the positive going edge and

the negative going edge of the same channel.

9. tSK(o) is the differential channel-to-channel skew of any event on the same device.

10. tSK(pp) is the differential part-to-part skew, and is defined as the difference between the minimum and the maximum specified

differential propagation delays. This specification applies to devices at the same VCC and within 5

°C of each other within the

operating temperature range.

11. tsk(lim) 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. tsk(lim) is defined as |Min

– Max| differential propagation delay.

12. f(MAX) generator input conditions: tr = tf < 1 ns (0% to 100%), 50% duty cycle, 0 V to 3 V. Output criteria: duty cycle = 45% to 55%,

VOD > 250 mV, all channels switching