CDB5368(2005) View Datasheet(PDF) - Cirrus Logic

Part Name

Description

MFG CO.

CDB5368
(Rev.:2005)

114 dB, 192 kHz, 8-Channel A/D Converter

Cirrus Logic 

CS5368

Bit[6] CLKMODE Setting this bit puts the part in 384X mode (divides XTI by 1.5), and clearing

the bit invokes 256X mode (divide XTI by 1.0 - pass through).

Bits[5:4] MDIV[1:0] Each bit selects an XTI divider. When either bit is low, an XTI divide by 1

function is selected. When either bit is HIGH, an XTI divide by 2 function is selected. With both

bits HIGH, XTI is divided by 4.

The table below shows the composite XTI division using both CLKMODE and MDIV[1:0].

CLKMODE,MDIV[1],MDIV[0]

000

100

001 or 010

101 or 110

011

111

DESCRIPTION

Divide-by-1

Divide-by-1.5

Divide-by-2

Divide-by-3

Divide-by-4

Unused

Bits[3:2] DIF[1:0] Determine which data format the serial audio interface is using to clock out da-

ta.

DIF[1:0]

0x00 Left Justified format

0x01 I²S format

0x02 TDM format

0x03 TDM format

Bits[1:0] MODE[1:0] This bit field determines the device sample rate range and whether it is op-

erating as an audio clocking Master or Slave.

MODE[1:0]

0x00 Single-Speed Mode Master

0x01 Double-Speed Mode Master

0x02 Quad-Speed Mode Master

0x03 Slave Mode all speeds

5.4 02h (OVFL) Overflow Status Register

R/W

7

6

5

4

R

OVFL8 OVFL7 OVFL6 OVFL5

3

OVFL4

2

OVFL3

1

OVFL2

0

OVFL1

Default: 0xFF, no overflows have occurred.

Note: This register interacts with Register 03h, the Overflow Mask Register.

The Overflow Status Register is used to indicate an individual overflow in a channel. If an overflow

condition on any channel is detected, the corresponding bit in this register is asserted (low) in ad-

dition to the open drain active low OVFL pin going low. Each overflow status bit is sticky and is

cleared only when read, providing full interrupt capability.

36

DS624A1

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