User's Manual

Hardware Development Guide of Module Product
All Rights reserved, No Spreading abroad without Permission of ZTEWelink 25
错误！未找到
用源。
ZM8620_V2
 NOTE:
Do not directly connect this signal to the positive end of power supply.
Figure 4–7 Reference Connection Circuit of WAKE# Signal
4.10 W_DISABLE_N Signal
The W_DISABLE_N signal (PIN No: 20) is the input signal of ZM8620_V2, active low. Table 4-8
describes its control logic.
Table 4–8 Definition and Description of W_DISABLE_N Signal
W_DISABLE_N
ZM8620_V2 Status
‗1‘
RF is enabled.
‗0‘
RF is disabled.
The W_DISABLE_N signal is pulled up by the 150Kohm resistance to 3.3V inside ZM8620_V2, so the
system side does not pull up this circuit any more.
 NOTE:
Do not directly connect this signal to the positive end of power supply.
Figure 4-8 illustrates the reference circuit design of W_DISABLE_N signal.
ZM8620_V2