cy28159 Cypress Semiconductor Corporation., cy28159 Datasheet - Page 6

• Manufacturer Part Number: cy28159
• Description: Clock Generator For Serverworks Grand Champion Chipset Applications Semiconductor
• Manufacturer: Cypress Semiconductor Corporation.

Buffer Characteristics
Current Mode CPU Clock Buffer Characteristics
The current mode output buffer detail and current reference
circuit details are contained elsewhere in this datasheet. The
following parameters are used to specify output buffer charac-
teristics:
Table 6. Host Clock (HSCL) Buffer Characteristics
Iout is selectable depending on implementation. The parame-
ters above supply to all configurations. Vout is the voltage at
the pin of the device.
Document #: 38-07118 Rev. **
Characteristics
Vout
Ros
Ro
VDD3 (3.3V +/- 5%)
Vout = 1.2V max
Ros
Iout
Ro
3000 Ohms (recommended)
Unspecified
N/A
Minimum
Figure 4.
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 table current accuracy.
1. Output impedance of the current mode buffer circuit - Ro
2. Minimum and maximum required voltage operation range
3. Series resistance in the buffer circuit - Ros (see Figure 4)
4. .Current accuracy at given configuration into nominal test
Iout
(see Figure 4)
of the circuit - Vop (see Figure 4).
load for given configuration
0V
N/A
Unspecified
1.2 Volt
Vout
1.2V
Maximum
CY28159
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