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Xinyuan-LilyGO / LilyGO-T-A76XX

LilyGo A7670 A7608 SIM7672 series
MIT License
96 stars 42 forks source link

Difference between A7670 and TSIM7600 #96

Closed ChadMatsalla closed 1 month ago

ChadMatsalla commented 3 months ago

Hi,

@lewisxhe perhaps?

Can anybody explain the difference between the A7670 and TSIM7600?

I’m interested in battery and solar for a remote location in Canada. Schematics indicate that both have CN3065 for battery charging, both have on-board battery, battery protection

T-SIM 7600 S-8205A for overcharge discharge protection DW01FA for battery management CN3065 for charging ESP32 WROVER JW5222 buck converter ME6217 LDO TCS9208 step-up IO35 for battery voltage

A7670

RS0108YQ20 voltage level converter XC6206P voltage regulator ESP32WROVER DW06D for battery protection CN3065 for charging RT9080 LDO ( or AP2112K )

A7670 seems much cheaper.

Chad

lewisxhe commented 2 months ago

A7670 is Cat1, Sim7600 is Cat4, the rates are different. Regarding the circuit board, both are the same solution, only the tuner and demodulator are different.

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github-actions[bot] commented 1 month ago

This issue was closed because it has been inactive for 14 days since being marked as stale.