CY28317ZC-2T SPECTRALINEAR [SpectraLinear Inc], CY28317ZC-2T Datasheet - Page 16

• Manufacturer Part Number: CY28317ZC-2T
• Manufacturer: SPECTRALINEAR [SpectraLinear Inc]

Rev 1.0, November 25, 2006
DC Electrical Characteristics:
AC Electrical Characteristics
T
AC clock parameters are tested and guaranteed over stated operating conditions using the stated lump capacitive load at the
clock output; Spread Spectrum is disabled.
CPU Clock Outputs
Notes:
5. X1 input threshold voltage (typical) is V
6. The CY28317-2 contains an internal crystal load capacitor between pin X1 and ground and another between pin X2 and ground. The total load placed on the
7. X1 input capacitance is applicable when driving X1 with an external clock source (X2 is left unconnected).
8. Determined as a fraction of 2* (t
V
C
C
C
C
L
t
t
t
t
f
Z
Parameter
A
R
F
D
JC
ST
Parameter
Crystal Oscillator
Pin Capacitance/Inductance
IN
o
TH
LOAD
IN,X1
IN
OUT
crystal is 18 pF; this includes typical stray capacitance of short PCB traces to the crystal.
= 0°C to +70°C, V
Output Rise Edge Rate
Output Fall Edge Rate
Duty Cycle
Jitter, Cycle to Cycle
Frequency Stabilization
from Power-up (cold
start)
AC Output Impedance
X1 Input Threshold Voltage
Load Capacitance, Imposed on
External Crystal
X1 Input Capacitance
Input Pin Capacitance
Output Pin Capacitance
Input Pin Inductance
Description
[8]
DDQ3
= 3.3V±5%, f
RP
Description
– t
[6]
RN
DD
). Where t
/2.
[7]
T
Measured at 50% point
Assumes full supply voltage reached
within 1 ms from power-up. Short
cycles exist prior to frequency
stabilization.
V
XTL
A
O
RP
= 0°C to +70°C, V
[5]
= V
Test Condition/Comments
= 14.31818 MHz
is a rising edge and t
X
V
Pin X2 unconnected
Except X1 and X2
DDQ3
DDQ3
RN
Test Condition
is an intersection falling edge.
= 3.3V
= 3.3V ±5%
[3]
Min. Typ. Max.
1.0
1.0
CPU = 100 MHz
45
(continued)
50
Min.
3
250
4.0
2.0
55
TBD
Typ.
1.65
18
Min.
1.0
1.0
CPU = 133 MHz
45
CY28317-2
Typ. Max.
Max.
50
3
5
6
7
Page 16 of 20
250
4.0
2.0
55
Unit
nH
pF
pF
pF
pF
V
Unit
v/ns
v/ns
ms
ps
%