CY28346ZCT Silicon Laboratories Inc, CY28346ZCT Datasheet - Page 7

• Manufacturer Part Number: CY28346ZCT
• Description: Clock Synthesizer / Jitter Cleaner NB clk for Intel 830M & 845 chipsets
• Manufacturer: Silicon Laboratories Inc

Specifications of CY28346ZCT

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Rev 1.0, November 24, 2006
Buffer Characteristics
Current Mode CPU Clock Buffer Characteristics
The current mode output buffer detail and current reference
circuit details are contained in the previous table of this data
sheet. The following parameters are used to specify output
buffer characteristics:
1. Output impedance of the current mode buffer circuit—Ro
2. Minimum and maximum required voltage operation range
(see Figure 4).
of the circuit—Vop (see Figure 4).
VDD3 (3.3V +/- 5%)
Vout = 1.2V max
Ros
Iout
2.4V
1.5V
0.4V
Ro
Tr
Figure 3. For Single-ended Output Signals
-
Figure 4. Buffer Characteristics
3.3V
3.3V signals
tDC
Tf
Iout is selectable depending on implementation. The param-
eters above apply to all configurations. Vout is the voltage at
the pin of the device.
The various output current configurations are shown in the
host swing select functions table. For all configurations, the
deviation from the expected output current is ±7% as shown in
the current accuracy table.
3. Series resistance in the buffer circuit—Ros (see Figure 4).
4. Current accuracy at given configuration into nominal test
load for given configuration.
0V
Iout
0V
-
Output under Test
Probe
Load Cap
Vout
1.2V
Slope ~ 1/R
CY28346
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