fs6377 AMI Semiconductor, Inc., fs6377 Datasheet - Page 13

• Manufacturer Part Number: fs6377
• Description: Fs6377-01g Programmable 3-pll Clock Generator Ic
• Manufacturer: AMI Semiconductor, Inc.

FS6377-01x Programmable 3-PLL Clock Generator IC
Table 8: PLL Tuning Bits
Name
LFTC_A
(Bit 20)
LFTC_B
(Bit 44)
LFTC_C1
(Bit 68)
LFTC_C2
(Bit 92)
CP_A
(Bit 19)
CP_B
(Bit 43)
CP_C1
(Bit 67)
CP_C2
(Bit 91)
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Description
Loop Filter Time Constant A
Bit = 0
Bit = 1
Loop Filter Time Constant B
selected when the SEL_CD pin = 0
Bit = 0
Bit = 1
Loop Filter Time Constant C1
selected when the SEL_CD pin = 1
Bit = 0
Bit = 1
Loop Filter Time Constant C2
Bit = 0
Bit = 1
Charge Pump A
Bit = 0
Bit = 1
Charge Pump B
Bit = 0
Bit = 1
Charge Pump C1
selected when the SEL_CD pin = 0
Bit = 0
Bit = 1
Charge Pump C2
selected when the SEL_CD pin = 1
Bit = 0
Bit = 1
Specifications subject to change without notice
– Oct., 2007 – Rev. 3.0
Short time constant: 7µs
Long time constant: 20µs
Short time constant: 7µs
Long time constant: 20µs
Short time constant: 7µs
Long time constant: 20µs
Short time constant: 7µs
Long time constant: 20µs
Current = 2µA
Current = 10µA
Current = 2µA
Current = 10µA
Current = 2µA
Current = 10µA
Current = 2µA
Current = 10µA
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Data Sheet