Service Guide
Table Of Contents
- Safety Information
- About the Document
- Contents
- Table Index
- Figure Index
- 1 Introduction
- 2 Product Overview
- 3 Operating Characteristics
- 4 Application Interfaces
- 5 Antenna Interfaces
- 6 Electrical Characteristics and Reliability
- 7 Mechanical Information and Packaging
LTE-A Module Series
EM060K-GL&EM120K-GL_Hardware_Design 46 / 78
Table 21: Function of the DPR Signal
4.4.6. WLAN_PA_EN
QLN enables self-protection circuit (integrated inside QLN) when WLAN_PA_EN is at HIGH level.
In LTE mode, WLAN_PA_EN is set to 0 (low level) by default.
When WLAN_PA_EN is set to 1 (high level), the LNA will be in self-protection mode.
Table 22: Pin definition of WLAN_PA_EN
4.5. Cellular/WLAN COEX Interface*
The module provides the cellular/WLAN COEX interface, the following table shows the pin definition of
this interface.
Table 23: Pin Definition of COEX Interface
DPR Level Function
High/Floating Max transmitting power will NOT backoff.
Low Max transmitting power backoff by SAR efs file configure.
Pin No. Pin Name I/O Description Comment
60 WLAN_PA_EN DI, PD Self-protection of QLN control 1.8 V power domain
Pin No. Pin Name I/O Description Comment
62 COEX_RXD DI, PD LTE/WLAN coexistence receive 1.8 V
64 COEX_TXD DO, PD LTE/WLAN coexistence transmit 1.8 V