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DA14680 Datasheet(PDF) 3 Page - Dialog Semiconductor |
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DA14680 Datasheet(HTML) 3 Page - Dialog Semiconductor |
3 / 5 page www.dialog-semiconductor.com/bluetoothlowenergy • Analog interfaces - 8-channel 10-bit ADC with averaging capability achieving 11.5 ENOB - Three matched white LED drivers - Temperature sensor • Radio transceiver - 2.4 GHz CMOS transceiver with integrated balun - 50 Ω matched single wire antenna interface - 0 dBm transmit output power and -94 dBm receiver sensitivity - Supply current at VBAT1 (3 V): 3.4 mA (TX), 3.1 mA (RX) • Packages - AQFN with 60 pins, 6 mm x 6 mm x 0.9 mm Power Management There are 3 power rails that can be used to supply external devices namely V sys, Vflash and Vext. There are also internal rails used for the core and the radio (V core , Vradio). All of the rails are supplied by a normal LDO, a Retention LDO or one of the outputs of the Single Inductance Multiple Output (SIMO) DCDC converter. When the SoC is active, the DCDC is enabled. When the SoC is in sleep mode, then the Retention LDOs are supplying the rails. The normal LDOs are used while powering up the system or during transitions from active to sleep and vice-versa. 4.2V – 5.75V VBUS 110mA/3mA 75mA/3mA 75mA/3mA LDO_USB_RET LDO_VBAT_RET LDO_USB LDO_VBAT SIMO DCDC VBAT1 V12 Vcore Vflash Vsys Vradio Vext V14 V33 VDD1V8 VDD1V8P CC/CV 1.7V – 4.75V 4.7μF 10μF 4.7μF 0.47μH 10μF 10μF + - The driving capability of the various rails is depicted in the figure: light blue for active, dark blue for sleep. LDOs as well as DCDC outputs can be switched on/off depending on the application’s requirements. A flexible Constant Current / Constant Voltage (CC/CV) charger supplying currents from 200 uA to 400 mA allows for native re-chargeable batteries support. Finally, a State-of-Charge engine, monitors the remaining capacitance of the battery when the system is active. The Power Management Unit reduces Bill of Material and enables full control of the power budget of the final product. |
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