SY88933ALKI datasheet(5/9 Pages) MICREL

5 / 9 page

Micrel, Inc

SY88933AL

May 2005

M9999-051205

hbwhelp@micrel.com or (408) 955-1690

AC Electrical Characteristics

VCC = 3.0V to 3.6V; RLOAD = 50Ω to VCC–2V; TA = –40°C to +85°C; typical values at VCC = +3.3V, TA = +25

oC.

Symbol

Parameter

Condition

Min

Typ

Max

Units

PSRR

Power Supply Rejection Ratio

tr, tf

Output Rise/Fall Time

(20% to 80%)

Note 3

260

tJITTER

Deterministic

Random

Note 4

Note 5

pspp

psRMS

VID

Differential Input Voltage Swing

Figure 1

1800

mVpp

VOD

Differential Output Voltage Swing

VID > 18mVpp, Figure 1

1500

mVpp

TOFF

SD Release Time

µs

TON

SD Assert Time

µs

SDAL

Low SD Assert Level

RSDLVL = 15kΩ, Note 6

3.4

6.5

mVpp

SDDL

Low SD De-assert Level

RSDLVL = 15kΩ, Note 6

1.0

2.3

mVpp

HYSL

Low SD Hysteresis

RSDLVL = 15kΩ, Note 7

3.4

4.5

SDAM

Medium SD Assert Level

RSDLVL = 5kΩ, Note 6

6.2

mVpp

SDDM

Medium SD De-assert Level

RSDLVL = 5kΩ, Note 6

4.2

mVpp

HYSM

Medium SD Hysteresis

RSDLVL = 5kΩ, Note 7

3.4

4.5

SDAH

High SD Assert Level

RSDLVL = 100Ω, Note 6

16.4

mVpp

SDDH

High SD De-assert Level

RSDLVL = 100Ω, Note 6

10.8

mVpp

HYSH

High SD Hysteresis

RSDLVL = 100Ω, Note 7

3.4

4.5

B-3dB

3dB Bandwidth

GHz

AV(Diff)

Differential Voltage Gain

S21

Single-Ended Small-Signal Gain

Notes:

3. Amplifier in limiting mode. Input is a 200MHz square wave.

4. Deterministic jitter measured using 1.25Gbps K28.5 pattern, VID = 10mVpp.

5. Random jitter measured using 1.25Gbps K28.7 pattern, VID = 10mVpp.

6. See “Typical Operating Characteristics” for a graph showing how to choose a particular RSDLVL for a particular SD assert and

its associated de-assert amplitude.

7. This specification defines electrical hysteresis as 20log (SD Assert/SD De-assert). The ratio between optical hysteresis and

electrical hysteresis is found to vary between 1.5 and 2 depending upon the level of received optical power and ROSA

characteristics. Based on that ratio, the optical hysteresis corresponding to the electrical hysteresis range 1dB-4.5 dB, shown

in the AC characteristics table, will be 0.5dB-3dB optical hysteresis

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