Specifications

L506 Hardware Design
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VBAT
RF
Transceiver
Baseband
FLASH
DDR
19.2
MHZXO
Power on/off
PMIC
RF
WCDMA/FDD-LTE PA
VBAT
RF SWITCH
MAIN ANT
GNSS IQ
VBAT
VBAT
LDO
PCM/I2S
UART/SPI
SD CARD
SIM CARD
I/O STATUS
VDD_RF
DATA
RF IQ
CLK
Reset
SDIO/IO
Figure 2-3 L506 System Functional Architecture
2.2.2 Radio frequency function
RF Function Overview：
 TDD-LTE B38/B39/B40/B41
 FDD-LTE B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B20
 TD-SCDMA B34/B39
 UMTS/HSDPA/HSPA+ B1/B2/B5/B8
 GSM/GPRS/EDGE 900/1800 MHz
 GPS/BEIDOU/GLONASS
The operating frequency range of the transmitter is shown in table 2-2.
Table 2-3RF frequency band
Working band
Upstream band（Uplink）
Downlink frequency（Downlink）
UMTS850
824 MHz — 849MHz
869 MHz — 894MHz
UMTS2100
1920 MHz — 1980 MHz
2110 MHz — 2170 MHz
FDD_LTE B1
1920 MHz~1980 MHz
2110 MHz~2170 MHz
FDD_LTE B3
1710 MHz~1785 MHz
1805 MHz~1880 MHz
FDD_LTE B4
1710 MHz~1755 MHz
2110 MHz~2155 MHz
FDD_LTE B5
824 MHz — 849MHz
869 MHz — 894MHz
FDD_LTE B28A
703 MHz~733 MHz
758 MHz~788 MHz
FDD_LTE B28B
718 MHz~748 MHz
773 MHz~803 MHz
Table 2-4Conducted transmission power
Working Band
Max Power
Min Power