Micrel, Inc.

SY88315BL

November 2005

5

M9999-113005-C

AC Electrical Characteristics

Symbol

Parameter

Condition

Min

Typ

Max

Units

Output Rise/Fall Time

(20% to 80%)

Note 4

60

120

ps

Deterministic

Random

Note 5

Note 6

15

5

Differential Input Voltage Swing

Figure 1

10

1800

Differential Output Voltage Swing

700

800

950

SD Release Time

2

10

µs

SD Assert Time

2

10

µs

Low SD Assert Level

12

Low SD De-assert Level

7.8

Low SD Hysteresis

3.7

dB

Medium SD Assert Level

25

40

Medium SD De-assert Level

10

17

Medium SD Hysteresis

2

3.3

4.5

dB

High SD Assert Level

69

95

High SD De-assert Level

30

45

High SD Hysteresis

2

3.7

4.5

dB

3dB Bandwidth

2

GHz

Differential Voltage Gain

32

38

dB

Single-ended Small-Signal Gain

26

32

dB

Notes:

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

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 2dB-4.5dB, shown in

the AC characteristics table, will be 1dB-3dB Optical Hysteresis.

associated de-assert amplitude.