ICS9FG1904BK-1LF IDT, Integrated Device Technology Inc, ICS9FG1904BK-1LF Datasheet - Page 15

• Manufacturer Part Number: ICS9FG1904BK-1LF
• Description: IC FREQUENCY GENERATOR 72-VFQFPN
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Frequency Generatorr

Specifications of ICS9FG1904BK-1LF

• Input: Clock
• Output: Clock
• Frequency - Max: 400MHz
• Voltage - Supply: 3.135 V ~ 3.465 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 72-VFQFN, 72-VFQFPN
• Frequency-max: 400MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 9FG1904BK-1LF

1255B—08/03/07
SMBusTable: Gear Ratio Select Register
SMBusTable: Output Control Register
SMBusTable: Output and PLL BW Control Register
SMBusTable: Output Enable Readback Register
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Byte 0
Byte 1
Byte 2
Byte 3
Note: Bit 7 is wired OR to the HIGH_BW# input, any 0 selects High BW
Note: Bit 6 is wired OR to the SMB_A2_PLLBYP# input, any 0 selects Fanout Bypass mode
DIF(18:15)
Integrated
Circuit
Systems, Inc.
DIF(14:0)
see note
see note
72
8
-
-
-
-
-
-
Pin #
Pin #
Pin #
Pin #
Gear Ratio FS4 (Inverse of FS_A_410 input!)
Readback - SMB_A2_PLLBYP# In
DIF_13
DIF_12
DIF_11
DIF_10
Name
Name
DIF_7
DIF_6
DIF_5
DIF_4
DIF_3
DIF_2
DIF_1
DIF_0
Name
DIF_9
DIF_8
Name
Readback - OE_01234# Input
Group of 15 gear ratio enable
Group of 4 gear ratio enable
BYPASS# test mode / PLL
Readback - HIGH_BW# In
Readback - OE9# Input
Readback - OE8# Input
Readback - OE7# Input
Readback - OE6# Input
Readback - OE5# Input
PLL_BW# adjust
Gear Ratio FS3
Gear Ratio FS2
Gear Ratio FS1
Gear Ratio FS0
Reserved
Control Function
Control Function
Control Function
Control Function
Output Control
Output Control
Output Control
Output Control
Output Control
Output Control
Output Control
Output Control
Output Control
Output Control
Output Control
Output Control
Output Control
Output Control
15
Type
Type
Type
Type
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
R
R
R
R
R
R
R
R
Gear Ratio
Gear Ratio
High BW
Bypass
Programmable Gear
See ICS9FG1904-1
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
0
0
0
0
Ratios Table
Readback
Readback
Readback
Readback
Readback
Readback
Readback
Readback
ICS9FG1904B-1
Low BW
Enable
Enable
Enable
Enable
Enable
Enable
Enable
Enable
Enable
Enable
Enable
Enable
Enable
Enable
PLL
1:1
1:1
1
1
1
1
Latch
PWD
PWD
PWD
PWD
X
X
X
X
X
X
X
X
1
1
1
1
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1