ICS9214DGLFT IDT, Integrated Device Technology Inc, ICS9214DGLFT Datasheet - Page 12

• Manufacturer Part Number: ICS9214DGLFT
• Description: IC CLOCK GEN RAMBUS XDR 28-TSSOP
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Direct RAMbus Clock Generatorr

Specifications of ICS9214DGLFT

• Input: Clock
• Output: Clock
• Frequency - Max: 500MHz
• Voltage - Supply: 2.375 V ~ 2.625 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP
• Frequency-max: 500MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 9214DGLFT

Input Clock Signal
The ICS9214 receives either a differential or single-ended reference clock (CLK_INT/C). When the reference input clock is
from a differential clock source, it must meet the voltage levels and timing requirements listed in the DC Characteristics –
Inputs and AC Characteristics – Inputs tables.
For a singled-ended clock input, an external voltage divider and a supply voltage, as shown in Figure 2, provide a reference
voltage V
Characteristics – Inputs table.
0809G—08/02/08
TH
Integrated
Circuit
Systems, Inc.
ODCLK_T
ODCLK_C
V(t)
at the CLK_INC pin to determine the proper switching point for CLK_INT. The range of V
Swing Current
R
Control
RC
ISET
Figure 2. Example System Clock Driver Equivalent Circuit
Figure 3. Input and Output Voltage Waveforms
Differential Driver
Figure 4. Crossing-point Voltage
t
F
ODCLK_T
ODCLK_C
12
V
V
TS
TS
R
R
R
R
R
R
3
3
1
2
2
1
Measurement
Point
Measurement
Point
t
R
Z
Z
CH
CH
V
V
T
T
R
R
T
T
TH
V
80%
20%
V
Vx+
Vx,nom
Vx-
H
L
is specified in the DC
ICS9214