Hi,
We are planning to use TI multicore DSP - TMS3206678. We need some information to do a proper AC power distribution network (PDN) analysis for power integrity. These information are not separately defined in the power calculation excel sheet provided by Texas Instruments. However, they are critical for the analysis.
1. Transceivers:
We need the transient current requirement per transceiver for the speeds designated for specific interfaces. We also need the total voltage fluctuation that is allowed for ac transients.
S.N. |
Description |
Imin (mA) |
Imax (mA) |
±ΔVoltage (mV) |
1 |
VDDT2 (1V) |
|
|
|
|
- SGMII (1 Gb/s) |
|
|
-- |
|
- PCIe (5 Gb/s) |
|
-- |
|
|
- SRIO (5 Gb/s) |
|
|
-- |
|
|
|
|
|
2 |
VDDR2 (1.5V) |
|
|
|
|
- PCIe (5 Gb/s) |
|
|
-- |
|
|
|
|
|
3 |
VDDR3 (1.5V) |
|
|
|
|
- SGMII (1 Gb/s) |
|
|
-- |
|
|
|
|
|
4 |
VDDR4 (1.5V) |
|
|
|
|
- SRIO (5 Gb/s) |
|
|
-- |
2. PLL Supplies:
S.N. |
Description |
Imin (mA) |
Imax (mA) |
±ΔVoltage (mV) |
1 |
AVDDA1 |
|
|
|
2 |
AVDDA2 |
|
|
|
3 |
AVDDA3 |
|
|
|
3. Package RLC parameters:
We need the following parameters - On-die capacitance (Codc), on-die resistance (Rodr), overall package series inductance (Lpkg), and overall package series resistance (Rpkg).
S.N. |
Voltage Rail |
Codc [nF] |
Rodr [mΩ] |
Lpkg [nH] |
Rpkg [mΩ] |
1 |
CVDD |
|
|
|
|
2 |
CVDD1 |
|
|
|
|
3 |
DVDD18 |
|
|
|
|
4 |
DVDD15 |
|
|
|
|
Thanks,
Binayak