CY28339ZXC Cypress Semiconductor Corp, CY28339ZXC Datasheet - Page 12

• Manufacturer Part Number: CY28339ZXC
• Description: IC CLOCK SYNTHESIZER 48-TSSOP
• Manufacturer: Cypress Semiconductor Corp
• Type: Fanout Distribution, Spread Spectrum Clock Generatorr

Specifications of CY28339ZXC

• Pll: Yes
• Input: LVTTL, Crystal
• Output: Clock
• Number Of Circuits: 1
• Ratio - Input:output: 8:16
• Differential - Input:output: No/No
• Frequency - Max: 133MHz
• Divider/multiplier: Yes/No
• Voltage - Supply: 3.135 V ~ 3.465 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-TSSOP II
• Frequency-max: 133MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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