82V3380PFG IDT, Integrated Device Technology Inc, 82V3380PFG Datasheet - Page 24
82V3380PFG
Manufacturer Part Number
82V3380PFG
Description
Manufacturer
IDT, Integrated Device Technology Inc
Datasheet
1.82V3380PFG.pdf
(175 pages)
Specifications of 82V3380PFG
Function
Wan PLL
Operating Temperature (max)
85C
Operating Temperature (min)
-40C
Package Type
TQFP
Pin Count
100
Mounting
Surface Mount
Lead Free Status / RoHS Status
Compliant
- Current page: 24 of 175
- Download datasheet (2Mb)
Table 5: Related Bit / Register in Chapter 3.5
3.5.3
ence clock. The reference clock can be derived from the master clock or
the output of T0 DPLL, as determined by the FREQ_MON_CLK bit.
the FREQ_MON_HARD_EN bit is ‘1’, a frequency hard alarm is raised
when the frequency of the input clock with respect to the reference clock
is above the threshold; the alarm is cleared when the frequency is below
the threshold.
status of the input clock is indicated by the INn_FREQ_HARD_ALARM
bit (14 ≥ n ≥ 1). When the FREQ_MON_HARD_EN bit is ‘0’, no fre-
quency hard alarm is raised even if the input clock is above the fre-
quency hard alarm threshold.
Functional Description
IDT82V3380
Frequency is monitored by comparing the input clock with a refer-
A frequency hard alarm threshold is set for frequency monitoring. If
The frequency hard alarm threshold can be calculated as follows:
If the FREQ_MON_HARD_EN bit is ‘1’, the frequency hard alarm
LOWER_THRESHOLD_n_DATA[7:0] (3 ≥ n ≥ 0)
UPPER_THRESHOLD_n_DATA[7:0] (3 ≥ n ≥ 0)
INn_NO_ACTIVITY_ALARM (14 ≥ n ≥ 1)
Frequency Hard Alarm Threshold (ppm) = (ALL_FREQ_HARD_
THRESHOLD[3:0] + 1) X FREQ_MON_FACTOR[3:0]
BUCKET_SIZE_n_DATA[7:0] (3 ≥ n ≥ 0)
INn_FREQ_HARD_ALARM (14 ≥ n ≥ 1)
DECAY_RATE_n_DATA[1:0] (3 ≥ n ≥ 0)
ALL_FREQ_HARD_THRESHOLD[3:0]
FREQUENCY MONITORING
FREQ_MON_FACTOR[3:0]
IN_FREQ_READ_CH[3:0]
FREQ_MON_HARD_EN
IN_FREQ_VALUE[7:0]
IN_NOISE_WINDOW
BUCKET_SEL[1:0]
FREQ_MON_CLK
AMI1_LOS
AMI2_LOS
AMI1_LOS
AMI2_LOS
Bit
1
1
2
2
LOWER_THRESHOLD_0_CNFG ~ LOWER_THRESHOLD_3_CNFG
UPPER_THRESHOLD_0_CNFG ~ UPPER_THRESHOLD_3_CNFG
BUCKET_SIZE_0_CNFG ~ BUCKET_SIZE_3_CNFG
DECAY_RATE_0_CNFG ~ DECAY_RATE_3_CNFG
ALL_FREQ_MON_THRESHOLD_CNFG
INTERRUPTS3_ENABLE_CNFG
IN1_IN2_STS ~ IN13_IN14_STS
24
FREQ_MON_FACTOR_CNFG
IN_FREQ_READ_CH_CNFG
PHASE_MON_PBO_CNFG
IN1_CNFG ~ IN14_CNFG
MON_SW_PBO_CNFG
selection for T0/T4 DPLL.
with respect to the reference clock are monitored. If any edge drifts out-
side ±5%, the input clock is disqualified for clock selection for T0/T4
DPLL. The input clock is qualified if any edge drifts inside ±5%. This
function is supported only when the IN_NOISE_WINDOW bit is ‘1’.
can be read by doing the following step by step:
depends on the application.
IN_FREQ_READ_STS
INTERRUPTS3_STS
The input clock with a frequency hard alarm is disqualified for clock
In addition, if the input clock is 2 kHz, 4 kHz or 8 kHz, its clock edges
The frequency of each input clock with respect to the reference clock
Note that the value set by the FREQ_MON_FACTOR[3:0] bits
1. Select an input clock by setting the IN_FREQ_READ_CH[3:0]
2. Read the value in the IN_FREQ_VALUE[7:0] bits and calculate
Register
as follows:
bits;
Input Clock Frequency (ppm) = IN_FREQ_VALUE[7:0] X
FREQ_MON_FACTOR[3:0]
SYNCHRONOUS ETHERNET WAN PLL
14 ~ 17, 19 ~ 22
Address (Hex)
33, 37, 3B, 3F
31, 35, 39, 3D
32, 36, 3A, 3E
34, 38, 3C, 40
43 ~ 49
May 19, 2009
0B
2F
2E
0F
12
78
41
42
Related parts for 82V3380PFG
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
TRANSLATION DEVICE DPI 80-PQFP
Manufacturer:
IDT, Integrated Device Technology Inc
Datasheet:
Part Number:
Description:
IDT PART
Manufacturer:
IDT, Integrated Device Technology Inc
Datasheet:
Part Number:
Description:
IC LIU T1/E1/J1 OCTAL 256PBGA
Manufacturer:
IDT, Integrated Device Technology Inc
Datasheet:
Part Number:
Description:
IC FREQ TIMING GENERATOR 28TSSOP
Manufacturer:
IDT, Integrated Device Technology Inc
Datasheet:
Part Number:
Description:
IC CLK DVR PLL 1:10 40VFQFPN
Manufacturer:
IDT, Integrated Device Technology Inc
Datasheet:
Part Number:
Description:
IC CLK FANOUT BUFFER 1:18 32LQFP
Manufacturer:
IDT, Integrated Device Technology Inc
Datasheet:
Part Number:
Description:
IC CLK FANOUT BUFFER 1:18 32LQFP
Manufacturer:
IDT, Integrated Device Technology Inc
Datasheet:
Part Number:
Description:
IC CK505 VREG/RES 56TSSOP
Manufacturer:
IDT, Integrated Device Technology Inc
Datasheet:
Part Number:
Description:
IC SDRAM CLK DVR 1:10 48-TSSOP
Manufacturer:
IDT, Integrated Device Technology Inc
Datasheet:
Part Number:
Description:
IC CLK DVR PLL 1:10 48TSSOP
Manufacturer:
IDT, Integrated Device Technology Inc
Datasheet:
Part Number:
Description:
IC FLEXPC CLK PROGR P4 56-TSSOP
Manufacturer:
IDT, Integrated Device Technology Inc
Datasheet:
Part Number:
Description:
IC FLEXPC CLK PROGR P4 56-TSSOP
Manufacturer:
IDT, Integrated Device Technology Inc
Datasheet:
Part Number:
Description:
IC FLEXPC CLK PROGR P4 56-SSOP
Manufacturer:
IDT, Integrated Device Technology Inc
Datasheet:
Part Number:
Description:
IC PLL CLK DRIVER 2.5V 28-TSSOP
Manufacturer:
IDT, Integrated Device Technology Inc
Datasheet:
Part Number:
Description:
IC CLOCK DRIVER 2.5V 24-TSSOP
Manufacturer:
IDT, Integrated Device Technology Inc
Datasheet: