User Manual

GM47/48 Technical description

BA/SEM/MS 02:0004 Rev B

Portable Handsfree mode 2 V ± 0.1 V

Additional Gain in Portable Handsfree mode 28.5 dB

• Maximum input level at ATMS 245mVrms output at PCMO =

3dBm0

• The following table is with nominal PGA (Programmable Gain

Settings)

• For more information see AT commands

Input Input Volts mV

rms

TXAGC dB AUXI1 Gain PCMO dBm0

ATMS 245 0 13 3

Maximum input level at MICI 61.4mV

rms

output at PCMO = 3dBm0

Input Input Volts mV

rms

TXAGC dB AUXI1 Gain PCMO dBm0

MICI 61.4 0 25 3

Output at AUX02 for 3dBm0 at PCMI

Input dBm0 RXPGA Volume

Control dB

AUX02 mV

rms

PCMI 3dBm0 0 0 436

Output at BEAR for 3dBm0 at PCMI

Input dBm0 RXPGA Volume

Control dB

BEAR mV

rms

PCMI 3dBm0 0 0 388