20

©

2006 Semtech Corp. , Rev. 11, 7/18/06

TEST AND MEASUREMENT PRODUCTS

www.semtech.com

E7765

AC Characteristics (continued)

Figure 2. Driv

Figure 2. Driv

Figure 2. Driv

Figure 2. Driv

Figure 2. Driver DIN t

er DIN t

er DIN t

er DIN t

er DIN to OUT Disper

o OUT Disper

o OUT Disper

o OUT Disper

o OUT Dispersion Measurement Def

sion Measurement Def

sion Measurement Def

sion Measurement Def

sion Measurement Definition

inition

inition

inition

inition

Figure 3. Driv

Figure 3. Driv

Figure 3. Driv

Figure 3. Driv

Figure 3. Driver Minimum Pulse Width Measurement Def

er Minimum Pulse Width Measurement Def

er Minimum Pulse Width Measurement Def

er Minimum Pulse Width Measurement Def

er Minimum Pulse Width Measurement Definition

inition

inition

inition

inition

The measured result is the absolute value of the change in [Tpw,in – Tpw,out] as

Period = 50 ns

Tpw, in1 = 50 ns - PWmin

Tpw, in2 = PWmin

(DHI - DHI*)

OUT

Time

Time

OUTPUT: OUT(H) = 0.8V; OUT(L) = 0.0V

Tpw,in1

Tpw,in2

Tpw,out2

Tpw,out1

0.0V

0.0V

0.4V

∆Tpw = |(Tpw,in1 - Tpw,out1) - (Tpw,in2 - Tpw,out2)|

VOH

VOL + 0.9 * (VOH–VOL)

(VOH+VOL)/2

VOL + 0.1 * (VOH–VOL)

VOL

OUT

Time

Tpw+

Tpw–

Output

Signal

Period = 100 ns