CS4265-DNZ View Datasheet(PDF) - Cirrus Logic

Part Name

Description

Manufacturer

CS4265-DNZ

104 dB, 24-Bit, 192 kHz Stereo Audio CODEC

Cirrus Logic 

6. REGISTER DESCRIPTION

CS4265

6.1 Chip ID - Register 01h

7

PART3

6

PART2

5

PART1

4

PART0

3

REV3

2

REV2

1

REV1

0

REV0

Function:

This register is Read-Only. Bits 7 through 4 are the part number ID, which is 1101b (0Dh), and the remaining

bits (3 through 0) indicate the device revision as shown in Table 4 below.

REV[2:0]

001

010

011

Revision

A

B, C0

C1

Table 4. Device Revision

6.2 Power Control - Address 02h

7

Freeze

6

Reserved

5

Reserved

4

Reserved

3

PDN_MIC

2

PDN_ADC

1

PDN_DAC

0

PDN

6.2.1 Freeze (Bit 7)

Function:

This function allows modifications to be made to certain control port bits without the changes taking effect

until the Freeze bit is disabled. To make multiple changes to these bits take effect simultaneously, set the

Freeze bit, make all changes, then clear the Freeze bit. The bits affected by the Freeze function are listed

in Table 5.

Name

MuteDAC

MuteADC

Gain[5:0]

Gain[5:0]

Vol[7:0]

Vol[7:0]

TxMute

Register

03h

04h

07h

08h

0Ah

0Bh

0Eh

Bit(s)

2

2

5:0

5:0

7:0

7:0

4

Table 5. Freeze-able Bits

6.2.2 Power-Down MIC (Bit 3)

Function:

The microphone preamplifier block will enter a low-power state whenever this bit is set.

6.2.3 Power-Down ADC (Bit 2)

Function:

The ADC pair will remain in a reset state whenever this bit is set.

DS657F2

35

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