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TINA/Spice/PCA9306: PCA9306 IBIS model Question

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Part Number:PCA9306

Tool/software:TINA-TI or Spice Models

Hi Team,

My customer have questions about PCA9306 IBIS model.

They want to use PCA9306 for MDC/MDIO interface.

VSC8572 support maximum 12.5MHz MDC.

1. 12.5MHz Vih margin too low than 5MHz case. Is this IBIS model issue?

1.    2. Min/max results swapped.

When they test PCA9306_IO_25_S model, min&max swapped.

PCA9306 VDD (Vref1)
Mode
Output voltage
Datasheet
Simulation
2.5V
max
1.9V
1.35V
typ
1.5V
1.53V
min
1.2V
1.74V

 

Please check min / max parameter in IBIS model swapped or not.

 

2.       3. There is no voltage tolerance information in datasheet, can they use IBIS model voltage range?

 

3.       4. They use 2.5V model due to Vref1 set to 2.5V.
Can they use 3.3V for Vref1, even if SCA1, SDA1 level is 2.5V?

 

Thank you.
Best Regard,
Jade
Hi Team,
 
Customer have questions about PCA9306 IBIS model.
cid:150232133945971
They want to use PCA9306 for MDC/MDIO interface.
VSC8572 support maximum 12.5MHz MDC.
 

1.       12.5MHz Vih margin too low than 5MHz case. Is this IBIS model issue?
cid:150232133945970

2.       Min/max results swapped.
When they test PCA9306_IO_25_S model, min&max swapped.

PCA9306 VDD (Vref1)
Mode
Output voltage
Datasheet
Simulation
2.5V
max
1.9V
1.35V
typ
1.5V
1.53V
min
1.2V
1.74V

 

Please check min / max parameter in IBIS model swapped or not.

 

3.       There is no voltage tolerance information in datasheet, can they use IBIS model voltage range?

 

4.       They use 2.5V model due to Vref1 set to 2.5V.
Can they use 3.3V for Vref1, even if SCA1, SDA1 level is 2.5V?


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