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English Pages 4 Year 2019
CONFIDENTIAL B
MT6631 2G Tx 2nd harmonic improvement for specific customers have more strict 2nd harmonic spec.
MT6631 2G Tx 2nd harmonic issue ▪ Due to specific customers have more strict 2nd harmonic spec. ▪ For 2.4G 2nd harmonics level decreasing, MTK suggest to add 5GHz HPF filter on 5G Tx path. ▪ It will be help to reduce around 10~15dB harmonics level.
Suggestion Part : Vendor
P/N
Walsin
RFHPF1005040K08Q1C
TDK
DEA105150HT-8044A1
ACX
HF1005-W5R5MAA
CONFIDENTIAL B
Reference schematic ▪ MT6762_MT6357_MT6371_MT6177_MT6631 _EMMC_WiFi_5G_Add_HPF_for_customer_sp ec_V1.pdf
CONFIDENTIAL B
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