CY2833 Datasheet, PDF (12/18 Pages) Cypress Semiconductor – Intel CK408 Mobile Clock Synthesizer

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:
VDD3 (3.3V +/- 5%)
CY28339
1. Output impedance of the current mode buffer circuit – Ro
(see Figure 14).
2. Minimum and maximum required voltage operation range
of the circuit – Vop (see Figure 14).
3. Series resistance in the buffer circuit – Ros (see Figure 14).
4. Current accuracy at given configuration into nominal test
load for given configuration.
Ro
Iout
Ros
0V
Iout
Vout = 1.2V max
Figure 14. Buffer Characteristics
Table 6. Host Clock (HCSL) Buffer Characteristics
Characteristic
Min.
Ro
3000Ω (recommended)
Ros
Vout
N/A
Table 7. Maximum Lumped Capacitive Output Loads
Clock
PCI Clocks
3V66
66BUFF
USB_48M Clock
DOT_48M
REF Clock
Max Load
30
30
30
20
10
50
Slope ~ 1/R₀
1.2V
Vout
Max.
N/A
1.2V
Units
pF
pF
pF
pF
pF
pF
Document #: 38-07507 Rev. *A
Page 12 of 18