CDCM1802

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SCAS759B – APRIL 2004 – REVISED NOVEMBER 2015

6.5 Electrical Characteristics

over recommended operating free-air temperature range (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

LVPECL INPUT IN, IN

Input frequency

0

800

MHz

High-level input common mode

1

V

500

1300

Input voltage swing between IN and IN

mV

150

1300

Input current

±10

µA

Input impedance

300

k

Ω

Input capacitance at IN, IN

1

pF

LVPECL OUTPUT DRIVER Y0, Y0

Output frequency (see Figure 3)

0

800

MHz

High-level output voltage

Termination with 50

V

Low-level output voltage

Termination with 50

V

Output voltage swing between Y and Y

Termination with 50

500

mV

(see Figure 3)

5

µA

Output 3-state

10

µA

Output capacitance

1

pF

LOAD

Expected output load

50

Ω

LVCMOS OUTPUT PARAMETER, Y1

0

200

MHz

High-level output voltage

2.4

V

2

0.1

Low-level output voltage

0.5

V

0.8

High-level output current

−29

mA

Low-level output current

37

mA

High-impedance state output current

±5

µA

Output capacitance

2

pF

Load

Expected output loading (see Figure 9)

10

pF

(1)

Required to maintain AC specifications

(2)

Required to maintain device functionality

(3)

Operating the CDCM1802 LVCMOS output above the maximum frequency will not cause a malfunction to the device, but the Y1 output

signal swing will not achieve enough signal swing to meet the output specification. Therefore, the CDCM1802 can be operated at higher

frequencies, while the LVCMOS output Y1 becomes unusable.

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