Other Parts Discussed in Thread: DLP-7970ABP
We are facing issue when we put TRF7970A sleep mode and enabled it again.
we followed below steps:
1. Set EN pin LOW state for power down mode.
2. When we want to wake up it again just set the EN pin in HIGH state.
In our hardware EN2 pin connected with 10K pull down.
If I read the oscillator register (0x0F) after setting the EN pin in HIGH state is 0x00 means crystal is in off state.
it works fine if we do not put in sleep mode. Value in oscillator register (0x0F) is 0x40.
We are getting 4uA in sleep mode when EN pin is LOW.
Do I missed something in wake up sequence?
