IDT82V3280DQG8 IDT, Integrated Device Technology Inc, IDT82V3280DQG8 Datasheet - Page 89
IDT82V3280DQG8
Manufacturer Part Number
IDT82V3280DQG8
Description
IC PLL WAN SE STRATUM 2 100-TQFP
Manufacturer
IDT, Integrated Device Technology Inc
Type
PLL Clock Generatorr
Datasheet
1.IDT82V3280DQG8.pdf
(171 pages)
Specifications of IDT82V3280DQG8
Input
CMOS, LVDS, PECL, TTL
Output
CMOS, LVDS, PECL, TTL
Frequency - Max
622.08MHz
Voltage - Supply
3 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
100-TQFP, 100-VQFP
Frequency-max
622.08MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
82V3280DQG8
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IN11_CNFG - Input Clock 11 Configuration
Programming Information
IDT82V3280
Address: 1FH
Type: Read / Write
Default Value: 0000XXXX
DIRECT_DIV
5 - 4
3 - 0
Bit
7
6
7
BUCKET_SEL[1:0]
IN_FREQ[3:0]
DIRECT_DIV
LOCK_8K
Name
LOCK_8K
6
Refer to the description of the LOCK_8K bit (b6, 1FH).
This bit, together with the DIRECT_DIV bit (b7, 1FH), determines whether the DivN Divider or the Lock 8k Divider is used for
IN11:
These bits select one of the four groups of leaky bucket configuration registers for IN11:
00: Group 0; the addresses of the configuration registers are 31H ~ 34H. (default)
01: Group 1; the addresses of the configuration registers are 35H ~ 38H.
10: Group 2; the addresses of the configuration registers are 39H ~ 3CH.
11: Group 3; the addresses of the configuration registers are 3DH ~ 40H.
These bits set the DPLL required frequency for IN11:
0000: 8 kHz.
0001: 1.544 MHz (when the IN_SONET_SDH bit (b2, 09H) is ‘1’) / 2.048 MHz (when the IN_SONET_SDH bit (b2, 09H) is ‘0’).
0010: 6.48 MHz.
0011: 19.44 MHz.
0100: 25.92 MHz.
0101: 38.88 MHz.
0110 ~ 1000: Reserved.
1001: 2 kHz.
1010: 4 kHz.
1011 ~ 1111: Reserved.
For IN11, the required frequency should not be set higher than that of the input clock.
The default value of these bits depends on the device application as follows:
In Master / Slave application, when the device is configured as the Master, the default value is ‘0001’; when the device is con-
figured as the Slave, the default value is ‘0010’.
BUCKET_SEL1
DIRECT_DIV bit
5
0
0
1
1
BUCKET_SEL0
4
LOCK_8K bit
0
1
0
1
89
IN_FREQ3
3
Description
IN_FREQ2
Both bypassed (default)
2
Lock 8k Divider
Used Divider
DivN Divider
Reserved
IN_FREQ1
1
December 9, 2008
IN_FREQ0
0
WAN PLL
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