DS90UA101-Q1

SNLS441A – JULY 2013 – REVISED SEPTEMBER 2013

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ELECTRICAL CHARACTERISTICS:

Serializer Switching Characteristics

Over recommended operating supply and temperature ranges unless otherwise specified.

(1) (2) (3)

Symbol

Parameter

Conditions

Min

Typ

Max

Units

CML Low-to-High Transition

150

330

ps

Time

CML High-to-Low Transition

150

330

ps

Time

Data Input Setup to SCK

Serializer Data Inputs

2

ns

(Figure 10)

Data Input Hold from SCK

2

ns

Serializer PLL Lock Time

1

2

ms

Register 0x03h b[0] (TRFB = 1)

11.75T

13T

15T

ns

(Figure 12)

Serializer Output

Serializer output intrinsic deterministic

Deterministic Jitter

jitter . Measured (cycle-cycle) with

0.13

UI

PRBS-7 test pattern

(3) (6)

Serializer Output Random

Serializer output intrinsic random jitter

Jitter

(cycle-cycle). Alternating-1,0 pattern.

0.04

UI

(3) (6)

Peak-to-peak Serializer

Serializer output peak-to-peak jitter

Output Jitter

includes deterministic jitter, random

jitter, and jitter transfer from Serializer

0.396

UI

input. Measured (cycle-cycle) with

PRBS-7 test pattern.

(3) (6)

Serializer Jitter Transfer

SCK = 50MHz

2.2

MHz

Serializer Jitter Transfer

SCK = 50MHz

1.16

dB

Serializer Jitter Transfer

SCK = 50MHz

600

Function (Peaking

kHz

(1)

The Electrical Characteristics tables list verified 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

verified.

(2)

Current into device pins is defined as positive. Current out of a device pin is defined as negative. Voltages are referenced to ground

(3)

the time of product characterization and are not verified.

(4)

(5)

Specification is verified by design.

(6)

UI – Unit Interval is equivalent to one ideal serialized data bit width. The UI scales with SCK frequency.

(7)

Specification is by characterization and is not tested in production.

10

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