Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_13869651_3 (frequency VARCHAR, part_number_s_ VARCHAR)
### Question:
How many different frequencies does the model with part number ado540biaa5do? 
### Answer:
SELECT COUNT(frequency) FROM table_13869651_3 WHERE part_number_s_ = "ADO540BIAA5DO"