CS4525 View Datasheet(PDF) - Cirrus Logic

Part Name

Description

MFG CO.

CS4525

30 W Digital Audio Amplifier with Integrated ADC

Cirrus Logic 

CS4525

9.21.5 Ramp-Up Cycle Complete (RampDone)

Function:

When set, indicates that all active channels have completed the configured ramp-up interval.

RampDone Setting

Ramp Completion State

0 ..........................................Ramp-up interval not completed on all channels.

1 ..........................................Ramp-up interval completed on all channels.

9.22 Amplifier Error Status (Address 62h) - Read Only

7

OverCurr4

6

OverCurr3

5

OverCurr2

4

OverCurr1

3

ExtAmpErr

2

Reserved

1

UVTE1

0

UVTE0

All bits in this register are considered “level-triggered” events, meaning as long as a condition continues, the corre-

sponding bit will remain set. These status bits are not affected by the interrupt mask bit and the condition of each bit

can be polled. These bits will not be cleared following a read to this register, nor can they be written to cause an

interrupt condition.

9.22.1 Over-Current Detected On Channel X (OverCurrX)

Function:

When set, indicates an over current condition is currently present on the corresponding amplifier output.

OverCurrX Setting

Amplifier Over-Current Status

0 ..........................................An over current condition is not currently present on amplifier output X.

1 ..........................................An over current condition is currently present on amplifier output X.

9.22.2 External Amplifier State (ExtAmpSt)

Function:

When set, indicates a thermal warning condition is currently being reported by an external amplifier. For

proper operation, the delay serial port must be configured to support an external thermal warning input

signal. This status bit reflects the active state of the external thermal warning input signal.

ExtAmpSt Setting

External Amplifier Status

0 ..........................................A thermal warning condition is not currently being reported by an external amplifier.

1 ..........................................A thermal warning condition is currently being reported by an external amplifier.

9.22.3 Under Voltage / Thermal Error State (UVTE[1:0])

Function:

Indicates the operational status of the amplifier. These bits can identify a Thermal Warning condition, a

Thermal Error condition, or an Under Voltage condition. The thresholds for each of these conditions is

listed in the PWM Power Output Characteristics table on page 20.

UVTE[1:0] Setting

Under Voltage & Thermal Error Status

00 ........................................The device is operating normally.

01 ........................................The device is operating normally; however a Thermal Warning condition is being reported.

10 ........................................An Under Voltage condition is currently present.

11.........................................A Thermal Error condition is currently present.

DS726PP1

93

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