FS7140-01 datasheet(9/15 Pages) AMI

Part #	FS7140-01

Description	Programmable Phase-Locked Loop Clock Generator

PDF	15 Pages

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Manufacturer	AMI [AMI SEMICONDUCTOR]

Direct Link	http://www.amis.com

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9

AMI Semiconductor - Rev. 3.0

www.amis.com

FS7140-01 / FS7140-01g / FS7145 Programmable Phase-Locked Loop Clock Generator Data Sheet

ADDRESS

BIT 7

BIT 6

BIT 5

BIT 4

BIT 3

BIT 2

BIT 1

BIT 0

BYTE 7

RESERVED

(Bit 63)

RESERVED

(Bit 62)

RESERVED

(Bit 61)

RESERVED

(Bit 60)

RESERVED

(Bit 59)

RESERVED

(Bit 58)

RESERVED

(Bit 57)

RESERVED

(Bit 56)

Must be set to “0”

BYTE 6

RESERVED

(Bit 55)

RESERVED

(Bit 54)

SHUT2

(Bit 53)

RESERVED

(Bit 52)

RESERVED

(Bit 51)

RESERVED

(Bit 50)

SYNCPOL

(Bit 49)

SYNCEN

(Bit 48)

Must be set to “0”

0 = Normal

1 = Powered Down

Must be set to “0”

“0” = negative

“1” = positive

“0” = negative

“1” = positive

BYTE 5

RESERVED

(Bit 47)

LC

(Bit 46)

LR[1]

(Bit 45)

LR[0]

(Bit 44)

RESERVED

(Bit 43)

RESERVED

(Bit 42)

CP[1]

(Bit 41)

CP[0]

(Bit 40)

Must be set to “0”

Loop Filter Cap

Select

Loop Filter Resistor Select

Must be set to “0”

Charge Pump Current Select

BYTE 4

CMOS

(Bit 39)

FBKDSRC

(Bit 38)

FBKDIV[13]

(Bit 37)

FBKDIV[12]

(Bit 36)

FBKDIV[11]

(Bit 35)

FBKDIV[10]

(Bit 34)

FBKDIV[9]

(Bit 33)

FBKDIV[8]

(Bit 32)

0 = PECL

1 = CMOS

0 = VCO Output

1 = Post Divider

Output

8192

4096

2048

1024

512

256

See Section 4.1.2 for disallowed FBKDIV values

BYTE 3

FBKDIV[7]

(Bit 31)

FBKDIV[6]

(Bit 30)

FBKDIV[5]

(Bit 29)

FBKDIV[4]

(Bit 28)

FBKDIV[3]

(Bit 27)

FBKDIV[2]

(Bit 26)

FBKDIV[1]

(Bit 25)

FBKDIV[0]

(Bit 24)

128

64

32

16

8

4

2

1

See Section 4.1.2 for disallowed FBKDIV values

BYTE 2

POST2[3]

(Bit 23)

POST2[2]

(Bit 22)

POST2[1]

(Bit 21)

POST2[0]

(Bit 20)

POST1[3]

(Bit 19)

POST1[2]

(Bit 18)

POST1[1]

(Bit 17)

POST1[0]

(Bit 16)

Modulus = N+1 (N=0 to 11)

See Table 8

Modulus = N+1 (N=0 to 11)

See Table 8

BYTE 1

POST3[1]

(Bit 15)

POST3[0]

(Bit 14)

SHUT1

(Bit 13)

REFDSRC

(Bit 12)

REFDIV[11]

(Bit 11)

REFDIV[10]

(Bit 10)

REFDIV[9]

(Bit 9)

REFDIV[8]

(Bit 8)

Modulus = 1, 2, 4, or 8

See Table 8

0 = Normal

1 = Powered Down

0 = Crystal Oscillator

1 = REF Pin

2048

1024

512

256

BYTE 0

REFDIV[7]

(Bit 7)

REFDIV[6]

(Bit 6)

REFDIV[5]

(Bit 5)

REFDIV[4]

(Bit 4)

REFDIV[3]

(Bit 3)

REFDIV[2]

(Bit 2)

REFDIV[1]

(Bit 1)

REFDIV[0]

(Bit 0)

128

64

32

16

8

4

2

1

Table 4: FS7145 Register Map

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