ICS9214DGLFT IDT, Integrated Device Technology Inc, ICS9214DGLFT Datasheet - Page 5

• Manufacturer Part Number: ICS9214DGLFT
• Description: IC CLOCK GEN RAMBUS XDR 28-TSSOP
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Direct RAMbus Clock Generatorr

Specifications of ICS9214DGLFT

• Input: Clock
• Output: Clock
• Frequency - Max: 500MHz
• Voltage - Supply: 2.375 V ~ 2.625 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP
• Frequency-max: 500MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 9214DGLFT

PLL Multiplier
Table 2 shows the frequency multipliers in the PLL, selectable by programming the MULT0, MULT1 and MULT2 bits in the
SMBus Multiplier Control register. Power up default is 4.
Device ID and SMBus Device Address
The device ID (SMB_A(1:0)) is part of the SMBus device address. The least significant bit of the address designates a write
or read operation. Table 3 shows the addresses for four ICS9214 devices on the same SMBus.
0809G—08/02/08
Table 2. PLL Multiplier Selection
Table 3. SMBus Device Addresses
MULT2
Device
Bit 6
NOTES
1
1
0
1
2
3
0
0
0
0
1
1
ICS9214
Integrated
Circuit
Systems, Inc.
1 Output frequencies are based on nominal input frequencies of 100 MHz and 133 MHz. The PLL
2 Default muliplier value at power up
3 Outputs at these settings do not conform to the AC Output Characteristics, or are not supported.
4 Shaded areas are under development and are not yet supported
Operation
multipliers are also applicable to spread spectrum modulated input clocks.
MULT1
Byte 0
Write
Read
Write
Read
Write
Read
Write
Read
Bit 5
0
0
1
1
0
0
1
1
MULT0
Bit 4
Hex Address
1
0
1
0
1
0
1
0
DA
DB
DC
DD
DE
D8
D9
DF
Frequency
Multiplier
15/2
15/4
9/2
3
4
5
6
8
11011
8-bit SMBus Device Address, Including Oper.
CLK_INT/C =
100 MHz
Output Frequency (MHz)
300
400
500
600
800
450
750
375
3
2
1
SMB_A1
5
0
0
1
1
CLK_INT/C =
133 MHz
500
400
533
667
800
600
-
-
3
3
SMB_A0
1
1
0
1
0
WR#/RD
0
1
0
1
0
1
0
1
ICS9214