User's Manual

Table Of Contents
LBA7130
Oct., 2012, Version 0.6 (PRELIMINARY) 25 AMICCOM Electronics Corporation
ULS: RX Up/Low side band select. Recommend ULS = [0].
[0]: Up side band, [1]: Low side band.
Refer to section 14.2 for details.
9.2.27 RX Gain Register I (Address: 1Ah)
Name R/W Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
W PRS MIC IGC1 IGC0 MGC1 MGC0 LGC1 LGC0
RX Gain I
R -- MICR IGCR1 IGCR0 MGCR1 MGCR0 LGCR1 LGCR0
PRS: Limiter amplifier discharge manual select. Recommend PRS =[0].
MIC: Mixer buffer gain setting. Recommend MIC =[1].
[0]: 0dB. [1]: 6dB.
IGC [1:0]: IFA Attenuation Select. Recommend IGC =[10].
[00]: 0dB. [01]: 6dB. [10]: 12dB. [11]: 18dB.
MGC [1:0]: Mixer Gain Attenuation select. Recommend MGC =[11].
[00]: 0dB. [01]: 6dB. [10]: 12dB. [11]: 18dB.
LGC [1:0]: LNA Gain Attenuation select. Recommend LGC =[11].
[00]: 0dB. [01]: 6dB. [10]: 12dB. [11]: 18dB.
9.2.28 RX Gain Register II (Address: 1Bh)
Name R/W Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
R RH7 RH6 RH5 RH4 RH3 RH2 RH1 RH0
RX Gain II
W
RSAGC1 RSAGC0 VTL2 VTL1 VTL0 VTH2 VTH1 VTH0
RSAGC [1:0]: AGC clock select. Recommend RSAGC = [11].
[00]: IF / 8. [01]: IF/ 4. [10]: IF / 2. [11]: IF
.
VTL [2:0]: VCO tuning voltage lower threshold level setting. Recommend VTL = [000].
[000]: 0.1V. [001]: 0.2V. [010]: 0.3V. [011]: 0.4V.
[100]: 0.5V. [101]: 0.6V. [110]: 0.7V. [111]: 0.8V
VTH [2:0]: VCO tuning voltage upper threshold level setting. Recommend VTH = [010].
[000]: VDD_A – 0.6V. [001]: VDD_A – 0.7V. [010]: VDD_A – 0.8V. [011]: VDD_A – 0.9V
[100]: VDD_A – 1.0V. [101]: VDD_A – 1.1V. [110]: VDD_A – 1.2V. [111]: VDD_A – 1.3V
Remark: VDD_A is on chip analog regulator output voltage where is set to 1.8V.
RH [7:0]: RSSI Calibration High Threshold. (Read only)
9.2.29 RX Gain Register III (Address: 1Ch)
Name R/W Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
R RL7 RL6 RL5 RL4 RL3 RL2 RL1 RL0
RX Gain III
W
-- RDU IFS1 IFS0 RSM1 RSM0 ERSSM RSS
RDU: Clock Generator Select. Recommend RDU = [0].
[0]: 128MHZ [1]: 96MHZ.
IFS [1:0]: IF Frequency Select.
[00]: reserved. [01]: reserved. [10]: reserved [11]: 4MHZ.
RSM [1:0]: RSSI Margin = RTH – RTL. Recommend RSM = [11].
[00]: 5. [01]: 10. [10]: 15. [11]: 20.
Refer to chapter 17 for details.
ERSSM: Ending Mode Select in RSSI Measurement. Recommend ERSSM = [0].
[0]: RSSI ending by RX. [1]: RSSI ending by SYNC_Ok.
RSS: RSSI measurement select. (XADS=0, RSS=0, default mode is thermal sensor.)
[0]: Disable. [1]: Enable (recommend).