DATASHEET
Frequency Timing Generator for Peripherals
9FGP204
Pin Configuration
Recommended Application:
Peripheral Clock for Intel Server
Output Features:
•
•
•
•
•
•
•
1 - 0.7V current-mode differential CPU pair
6 - 50MHz RMII outputs
2 - 125MHz RGMII outputs
1 - DOT 96MHz output
1 - 33.33MHz output
1 - 32.768KHz output
40 39 38 37 36 35 34 33 32 31
GND
VDD96
DOT96SST
DOT96SSC
OE_96
OE_CPU
CPUCLKT0
CPUCLKC0
VDDCPU
1
2
3
4
5
6
7
8
9
30 GNDRMII
29 RMII2
28 RMII3
27 GNDRMII
26 VDDRMII
25 RMII4
24 RMII5
23 VDD33
22 33.33MHZ/**SMBADR
21 GND33
2 - 25MHz REF outputs
9FGP204
Key Specifications:
•
Exact synthesis on CPU, RGMII, RMII & 33.33MHz
clocks
GNDCPU 10
11 12 13 14 15 16 17 18 19 20
•
+/- 100ppm frequency accuracy on other clocks
Features/Benefits:
40-VFQFPN
* Internal Pull-Up Resistor
** Internal Pull-Dow n Resistor
•
•
Selectable SMBus Address - D0/D1 or C0/C1
Spread Spectrum capability on CPU and DOT 96MHz
clocks
•
SMBus Control:
- M/N and spread programming on CPU and DOT
96MHz clocks via SMBus
- Differential outputs can be disabled via pins or SMBus
Functionality
CPU FS2 CPU FS1 CPU FS0 CPUCLK DOT96SS
33.33
MHz
RMII
MHz
RGMII
MHz
25
MHz
32.768
KHz
MHz
266.67
133.33
200.00
166.67
333.33
100.00
400.00
Reserved
MHz
Byte0 Bit2 Byte0 Bit1 Byte0 Bit0
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
96.00
96.00
96.00
96.00
96.00
96.00
96.00
96.00
33.33
33.33
33.33
33.33
33.33
33.33
33.33
33.33
50.00
50.00
50.00
50.00
50.00
50.00
50.00
50.00
125.00
125.00
125.00
125.00
125.00
125.00
125.00
125.00
25.00
25.00
25.00
25.00
25.00
25.00
25.00
25.00
32.768
32.768
32.768
32.768
32.768
32.768
32.768
32.768
Power up default is highlighted.
SMBus Address Selection
SMBADR
*SMBADR = 0 SMBADR = 1
D0/D1
C0/C1
* Default value
IDT® Frequency Timing Generator for Peripherals
1604C—04/23/15
1