Philips Semiconductors Product specification
PCK2020
CK00 (100/133MHz) spread spectrum
differential system clock generator
2000 Nov 13
9
AC CHARACTERISTICS
V
DD3
= 3.3 V –5%; f
crystal
= 14.31818 MHz
HOST CLOCK OUTPUTS (SEE FIGURE 1 FOR WAVEFORMS AND FIGURE 6 FOR TEST SETUP)
LIMITS
T
amb
= 0°C to +70°C
SYMBOL PARAMETER
133 MHz MODE 100 MHZ MODE
UNITS NOTES
MIN MAX MIN MAX
T
PKP
HOST CLK period 7.5 7.65 10.0 10.2 ns 11, 14, 20
AbsMinPeriod Absolute Minimum Host CLK Period 7.35 N/A 9.85 N/A ns 11, 14, 20
T
RISE
HOST CLK rise time 175 700 175 700 ps 11, 15, 20
T
FALL
HOST CLK fall time 175 700 175 700 ps 11, 15, 20
T
JITTER
HOST CLK cycle-to-cycle jitter 200 200 ps 11, 12, 14, 20
DUTY CYCLE Output duty cycle 45 55 45 55 % 11, 14, 20
T
SKEW
HOST CLK pin-to-pin skew 150 150 ps 11, 14, 20
Rise/Fall Matching Rise and fall time matching 35% 35% 11, 16, 20
Vcrossover 45% V
OH
60% V
OH
45% V
OH
60% V
OH
V 11, 14, 20
MREF OUTPUTS
LIMITS
T
amb
= 0°C to +70°C
SYMBOL PARAMETER
133 MHz MODE 100 MHz MODE
UNITS NOTES
MIN MAX MIN MAX
T
PKP
MREF period 15.0 15.3 20.0 20.4 ns 2, 9, 20
T
PKH
MREF HIGH time 5.25 N/A 7.5 N/A ns 5, 10, 20
T
PKL
MREF LOW time 5.05 N/A 7.3 N/A ns 6, 10, 20
T
RISE
MREF rise time 0.5 2.0 0.5 2.0 ns 8, 20
T
FALL
MREF fall time 0.5 2.0 0.5 2.0 ns 8, 20
T
JITTER
Cycle-to-cycle jitter 250 250 ps 18, 20
DUTY CYCLE Output Duty Cycle 45 55 45 55 % 18, 20
3V66 OUTPUTS
LIMITS
T
amb
= 0°C to +70°C
SYMBOL PARAMETER
133 MHz MODE 100 MHz MODE
UNIT NOTES
MIN MAX MIN MAX
T
PKP
3V66 period 15.0 16.0 15.0 16.0 ns 2, 4, 9, 20
T
PKH
3V66 HIGH time 5.25 N/A 5.25 N/A ns 5, 10, 20
T
PKL
3V66 LOW time 5.05 N/A 5.05 N/A ns 6, 10, 20
T
RISE
3V66 rise time 0.5 2.0 0.5 2.0 ns 8, 20
T
FALL
3V66 fall time 0.5 2.0 0.5 2.0 ns 8, 20
T
JITTER
Cycle-to-cycle jitter 300 300 ps 18, 20
DUTY CYCLE Output Duty Cycle 45 55 45 55 % 18, 20
T
SKEW
Pin-to-pin skew 250 250 ps 20