User's Manual

BT85x Series
Datasheet
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Temperatures should not exceed the minimums or maximums presented in Table 18.
Table 18: Recommended maximum and minimum temperatures
Specification Value Unit
Temperature Inc./Dec. Rate (max) 1~3 °C / Sec
Temperature Decrease rate (goal) 2-4 °C / Sec
Soak Temp Increase rate (goal) .5 - 1 °C / Sec
Flux Soak Period (Min) 70 Sec
Flux Soak Period (Max) 120 Sec
Flux Soak Temp (Min) 150 °C
Flux Soak Temp (max) 190 °C
Time Above Liquidous (max) 70 Sec
Time Above Liquidous (min) 50 Sec
Time In Target Reflow Range (goal) 30 Sec
Time At Absolute Peak (max) 5 Sec
Liquidous Temperature (SAC305) 218 °C
Lower Target Reflow Temperature 240 °C
Upper Target Reflow Temperature 250 °C
Absolute Peak Temperature 260 °C
13 J APAN (MIC) R EGULATORY
The BT85x is approved for use in the Japanese market. The part numbers listed below hold WW type
certification. Refer to ARIB-STD-T66 for further guidance on OEM’s responsibilities.
Model Product Name Description Certificate No.
BT850 -SA
BT850-SC
BT851
BT v4.2 Dual Mode USB HCI Module Mounted with chipset antenna
13.1. Antenna Information
The BT850-Sx was tested with antennas listed below. The OEM can choose a different manufacturers antenna
but must make sure it is of same type and that the gain is lesser than or equal to the antenna that is approved
for use.
Item Part Number Mfg. Type Gain (dBi)
1 AT3216-B2R7HAA ACX Ceramic 0.5
2 001-0030 mFlexPIFA LAIRD PIFA 2
3 001-0014 FlexPIFA LAIRD PIFA 2
4 0600-00040 LAIRD Dipole 2
5 NanoBlue MAF94045 LAIRD PCB Dipole 2