ICS841S012DI Data Sheet
CRYSTAL-TO-0.7V DIFFERENTIAL HCSL/LVCMOS FREQUENCY SYNTHESIZER
TABLE 6. AC CHARACTERISTICS, VDD =VDD_REFOUT = VDDOB =VDDOC = 3.3V 5ꢀ, TA = -40°C TO 85°C
Symbol Parameter
Test Conditions
Minimum Typical Maximum Units
QB[0:6]
33.33
100
200
250
200
50
MHz
MHz
MHz
ps
fOUT
Output Frequency
QA[0:1]/nQA[0:1]
QC
33.33
QB[0:6]
Bank Skeꢁ;
NOTE 1, 2
tsk(b)
QA[0:1]/nQA[0:1]
50
ps
across Banks B and C
(at Same Frequency)
All Outputs at Same
Frequency
tsk(o)
tjit(cc)
Output Skeꢁ; NOTE 1, 3
Cycle-to-Cycle
160
65
ps
ps
QA[0:1]/nQA[0:1]
Jitter; NOTE 1
QA[0:1]/nQA[0:1]
QB[0:6]
10
20
20
ps
ps
ps
REF_OE = 0, All Outputs
at Same Frequency
tjit(per)
RMS Period Jitter
QC
SSC Modulation
Frequency
FM
Banks A, B, C
29
33.33
1200
kHz
VHIGH
VLOW
Voltage High; NOTE 4, 5
Voltage Loꢁ; NOTE 4, 6
580
mV
mV
-150
Absolute Crossing Voltage;
NOTE 4, 7, 8
Total Variation of VCROSS over all
edges; NOTE 4, 7, 9
VCROSS
200
600
200
mV
mV
ΔVCROSS
Bank A
150mV from crosspoint
20ꢀ - 80ꢀ
25
0.4
45
42
100
1.3
55
ps
ns
ꢀ
ꢀ
Output Rise/Fall
Time
tR / tF
odc
Banks B, C
Bank A
Output Duty Cycle
Banks B, C
58
NOTE: Electrical parameters are guaranteed over the specified ambient operating temperature range, ꢁhich is established
ꢁhen the device is mounted in a test socket ꢁith maintained transverse airfloꢁ greater than 500 lfpm. The device ꢁill meet
specifications after thermal equilibrium has been reached under these conditions.
NOTE 1: This parameter is defined in accordance ꢁith JEDEC Standard 65.
NOTE 2: Defined as skeꢁ ꢁithin a bank of outputs at the same supply voltage and ꢁith equal load conditions.
NOTE 3: Defined as skeꢁ betꢁeen outputs at the same supply voltages and ꢁith equal load conditions.
Measured at VDDOB, C/2.
NOTE 4: Measurement taken from single-ended ꢁaveform.
NOTE 5: Defined as the maximum instantaneous voltage including overshoot. See Parameter Measurement Information
Section.
NOTE 6: Defined as the minimum instantaneous voltage including undershoot. See Parameter Measurement Information
Section.
NOTE 7: Measured at crossing point ꢁhere the instantaneous voltage value of the rising edge of Qx equals the falling edge
of nQx. See Parameter Measurement Information Section.
NOTE 8: Refers to the total variation from the loꢁest crossing point to the highest, regardless of ꢁhich edge is crossing.
Refers to all crossing points for this measurement. See Parameter Measurement Information Section.
NOTE 9: Defined as the total variation of all crossing voltage of rising Qx and falling nQx. This is the maximum alloꢁed
variance in the VCROSS for any particular system. See Parameter Measurement Information Section.
ICS841S012DKI REVISION A JULY 20, 2009
7
©2009 Integrated Device Technology, Inc.