Product Info

LTE Module Series
EC25 Mini PCIe Hardware Design
EC25_Mini_PCIe_Hardware_Design Confidential / Released 34 / 46
4.3. I/O Requirements
The following table shows the I/O requirements of EC25 Mini PCIe.
Table 15: I/O Requirements
1. The PCM and I2C interfaces belong to 1.8V power domain and other I/O interfaces belong to
VCC_3V3 power domain.
2. The maximum voltage value of V
IL
for PERST# signal and W_DISABLE# signal is 0.5V.
4.4. RF Characteristics
The following tables show the conducted RF output power and receiving sensitivity of EC25 Mini PCIe
module.
Table 16: EC25 Mini PCIe Conducted RF Output Power
Parameter Description Min. Max. Unit
V
IH
Input High Voltage 0.7 × VCC_3V3 VCC_3V3+0.3 V
V
IL
Input Low Voltage -0.3 0.3 × VCC_3V3 V
V
OH
Output High Voltage VCC_3V3-0.5 VCC_3V3 V
V
OL
Output Low Voltage 0 0.4 V
Frequency Max. Min.
GSM850/GSM900 33dBm±2dB 5dBm±5dB
DCS1800/PCS1900 30dBm±2dB 0dBm±5dB
GSM850/GSM900 (8-PSK) 27dBm±3dB 5dBm±5dB
DCS1800/PCS1900 (8-PSK) 26dBm±3dB 0dBm±5dB
WCDMA bands 24dBm+1/-3dB <-50dBm
LTE-FDD bands 23dBm±2dB <-44dBm
NOTES