【CYBT-333032-02】About Class2 GFSK Tx Power

Tip / Sign in to post questions, reply, level up, and achieve exciting badges. Know more

cross mob
YoJa_3107936
Level 5
Level 5
Distributor - Macnica (Japan)
100 sign-ins 50 sign-ins First like given

Hi

The following question is from customers.

By attached image, Class2 GFSK Tx Power in "General"

the TYP value is 2dBm, could you tell us the min and max values?

pastedImage_2.png

note:

In the "Power Control Step", there is a description of Typ: 4dB,

I think that 6dBm Tx_power can be output even in Class2.

Is it correct?

Thanks

Yang

0 Likes
1 Solution

Tx power of Class 2 devices, by definition, cannot exceed 4dBm. Therefore the IC output 2dBm (to play safe) typically so as to satisfy the Class 2 requirement. If the end product is defined as Class 2, then I would say 2dBm is probably the max. The power control will reduce it

by 4dB at a time, to somewhere about -16dBm.

View solution in original post

0 Likes
2 Replies
YoJa_3107936
Level 5
Level 5
Distributor - Macnica (Japan)
100 sign-ins 50 sign-ins First like given

Add information

I'm sorry, correct the description mistake.

> I think that 6dBm Tx_power can be output even in Class2.

> Is it correct?

I think that max value of Tx_power is 4dBm in Class2.

In the "Power Control Step", there is a description of Typ is 4dBm.

If simply set it to Plus, it will be 6 dBm, which will exceed 4 dBm.

How do I understand the Power Control Step for Class2 GFSK Tx Power?

0 Likes

Tx power of Class 2 devices, by definition, cannot exceed 4dBm. Therefore the IC output 2dBm (to play safe) typically so as to satisfy the Class 2 requirement. If the end product is defined as Class 2, then I would say 2dBm is probably the max. The power control will reduce it

by 4dB at a time, to somewhere about -16dBm.

0 Likes