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CDCM6208V1FRGZR Datasheet(PDF) 16 Page - Texas Instruments

Part No. CDCM6208V1FRGZR
Description  2:8 Clock Generator, Jitter Cleaner with Fractional Dividers
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

CDCM6208V1FRGZR Datasheet(HTML) 16 Page - Texas Instruments

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CDCM6208V1F
SCAS943 – MAY 2015
www.ti.com
8.20 Device Individual Block Current Consumption
VDD_Yx_Yy, VDD_PRI, VDD_SEC, VDD_PLLx, DVDD, VDD_VCO = 1.8 V, 2.5 V, or 3.3 V, TA = –40°C to 85°C, Output
Types = LVPECL/CML/LVDS/LVCMOS/HCSL
BLOCK
CONDITION
TYPICAL CURRENT CONSUMPTION (mA)
Core
CDCM6208V1F Core, active mode, PS_A = PS_B = 4
75
CML output, AC coupled w/ 100
Ω diff load
24.25
LVPECL, AC coupled w/ 100
Ω diff load
40
LVCMOS output, transient, 'C L' load, 'f' MHz output
Output Buffer
1.8 + V x f OUT x (C L+ 12 x 10
-12) x 10 3
frequency, 'V' output swing
LVDS output, AC coupled w/ 100
Ω diff load
19.7
HCSL output, 50
Ω load to GND on each output pin
31
Integer Divider Bypass (Divide = 1)
3
Integer Divide Enabled, Divide > 1
8
Output Divide Circuitry
Fractional Divider Enabled
12
additional current when PS_A differs from PS_B
15
Device Settings (V2)
1.
PRI input enabled, set to LVDS mode
2.
SEC input XTAL
3.
Input bypass off, PRI only sent to PLL
4.
Reference clock 30.72 MHz
5.
PRI input divider set to 1
(excl. I termination_resistors)
6.
Reference input divider set to 1
(1.8 V: 251 mA
7.
Charge Pump Current = 2.5 mA
2.5 V: 254 mA
8.
VCO Frequency = 3.072 GHz
3.3 V: 257 mA)
Total Device, CDCM6208V1F
(incl. I termination_resistors)
9.
PS_A = PS_B divider ration = 4
(1.8 V: 310 mA
10. Feedback divider ratio = 25
2.5 V: 313 mA
11. Output divider ratio = 5
3.3 V: 316 mA)
12. Fractional divider pre-divider = 2
13. Fractional divider core input frequency = 384 MHz
14. Fractional divider value = 3.84, 5.76, 3.072, 7.68
15. CML outputs selected for CH0-3 (153.6 MHz)
LVDS outputs selected for CH4-7 (100 MHz, 66.66 MHz,
125 MHz, 50 MHz)
Total Device, CDCM6208V1F
Power Down (PDN = '0')
0.35
Helpful Note: The CDCM6208V1F User GUI does an excellent job estimating the total device current
consumption based on the actual device configuration. Therefore, it is recommended to use the GUI to estimate
device power consumption.
The individual supply terminal current consumption for Pin mode P23 was measured to come out the following:
Table 1. Individual Supplies Measured
SEC
SEC
Y0-1
Y2-3
Y4
Y5
Y6
Y7
PRI
PLL1
PLL2
VCO
DVDD
TOTAL
(VSEC = 1.8V)
(VSEC = 2.5V)
PWR PIN 39 = GND
VPRI = 1.8 V
61 mA
40 mA
21 mA
29 mA
30 mA
31 mA
12 mA
70 mA
1.5 mA
295.5 mA
VOUT = 1.8 V
16
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Copyright © 2015, Texas Instruments Incorporated
Product Folder Links: CDCM6208V1F


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