ICS91720 Datasheet, PDF (9/11 Pages) Integrated Circuit Systems – Low EMI, Spread Modulating, Clock Generator

ICS91720
Electrical Characteristics - CLKOUT
T_A = 0 - 85°C; V_DD = 3.3V +/-5%; C_L = 10-20 pF (unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Output High Voltage
Output Low Voltage
Rise Time
Fall Time
V_OH3
V_OL3
tr3
tf3
I_OH = -1 mA
I_OL = 1 mA
V_OL = 0.41V, V_OH = 0.86V
V_OH = 0.86V V_OL = 0.41V
2.4
V
0.4
0.5 0.6
1
ns
0.5 0.6
1
ns
Duty Cycle
d_t3
measurement from differential wavefrom - ₄₅
0.35V to +035V
Jitter, Cycle to cycle t_jcyc-cyc1 V_T = 50%
1_{Guaranteed by design, not 100% tested in production.}
50
55
%
50 150 ps
Electrical Characteristics - REF
T_A = 0 - 85°C; V_DD = 3.3V +/-5%; C_L = 10-20 pF (unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
Output Frequency
F_O1
Output Impedance
R_DSP11 V_O = V_DD*(0.5)
Output High Voltage
V_OH1
I_OH = -1 mA
Output Low Voltage
V_OL1
I_OL = 1 mA
Output High Current
Output Low Current
Rise Time
I_OH1
V _OH@MIN = 1.0 V, V _OH@MAX = 3.135 V
I_OL1
V_{OL @MIN} = 1.95 V, V_{OL @MAX} = 0.4 V
t_r11
V_OL = 0.4 V, V_OH = 2.4 V
Fall Time
t_f11
V_OH = 2.4 V, V_OL = 0.4 V
Duty Cycle
Jitter
d_t11
t_jcyc-cyc1
V_T = 1.5 V
V_T = 1.5 V
1_{Guaranteed by design, not 100% tested in production.}
MIN TYP MAX UNITS
MHz
20
48
60
Ω
2.4
V
0.4 V
-29
-23 mA
29
27 mA
1
1.2
2
ns
1
1.2
2
ns
45
51
55
%
105 300 ps
0698D—10/05/04
9