CSR8635 查看數據表（PDF） - CSR plc

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CSR8635

The CSR8635 QFN single-chip Bluetooth® audio ROM device targets mid-range stereo speakers and headsets.

CSR plc 

C1

2.2µF

VBAT

3V3_USB

C2

2.2µF

LX

1.35V Switch-

mode Regulator

SENSE

LX_1V35

SMPS_1V35_SENSE

VSS_SMPS_1V35

L1

4.7µH

LX

LX_1V8

1.8V Supply Rail

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10.4 Bypass LDO Linear Regulator

The integrated bypass LDO linear regulator is available as a 3.30V supply rail and is an alternative supply rail to the

battery supply. This is especially useful when the battery has no charge and the CSR8635 QFN needs to power up.

The input voltage should be between 4.25V to 6.50V.

Note:

The integrated bypass LDO linear regulator can operate down to 3.1V with a reduced performance.

Externally decouple the output of this regulator using a low ESR MLC capacitor of a minimum 2.2µF to the 3V3_USB

pin.

The output voltage is switched on when VCHG gets above 3.0V.

Production Information

© Cambridge Silicon Radio Limited 2013

Confidential Information - This Material is Subject to CSR's Non-disclosure Agreement

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