2. LDO Block
1. There are 8 LDOsin the AD6537B.
-VCORE : supplies Digital basebandProcessor core and AD6537B digital core
(1.8V, 80mA)
-VMEM : supplies external memory and the interface to the external memory on the
digitalbasebandprocessor (1,8V or 2.8V, 150mA)
-VEXT : supplies Radio digital interface and high voltage interface (2.8V, 170mA)
-VSIM : supplies the SIM interface circuitry on the digital processor and SIM card
(2.85V, 20mA)
-VRTC : supplies the Real-Time Clock module (1.8 V, 20 •A)
-VABB : supplies the analog portions of the AD6537B
-VMIC : supplies the microphone interface circuitry (2.5 V, 1 mA)-VVCXO : supplies the
voltage controlled crystal oscillator ( 2.75 V, 10 mA)
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