PCM3168APAPR datasheet(31/66 Pages) TI1

31 / 66 page

Transmitter

SlaveAddress

ACK

RegAddress

ACK

SlaveAddress

ACK

ReadData

NACK

DataType

PCM3168A

www.ti.com

SBAS452A – SEPTEMBER 2008 – REVISED JANUARY 2016

(1) M = Master device, S = Slave device, St = Start condition, Sr = Repeated start condition, W = Write, R = Read, ACK = Acknowledge,

NACK = Not acknowledge, and Sp = Stop condition.

NOTE: The slave address after the repeated start condition must be the same as the previous address.

Figure 46. Framework for Read Operation

9.4 Device Functional Modes

9.4.1 Mode Control

The PCM3168A device includes four-way mode control selectable by MODE pin, as shown in Table 6. The pull-

up and pull-down resistors must be 220 k

Ω ±5%. This mode control selection is sampled only when the internal

reset is released by a power-on reset or by a low-to-high transition of the external reset (RST pin); a system

clock is also required.

Table 6. Mode Control Selection

MODE

MODE CONTROL INTERFACE

Tied to DGND

Two-wire (I2C) serial control, selectable analog input configuration

Tied to DGND through pull-down resistor

H/W (hardware control), differential analog input

Tied to VDD through pull-up resistor

H/W (hardware control), single-ended analog input

Tied to VDD

Four-wire (SPI) serial control, selectable analog input configuration

From the mode control selection described in Table 6, the functions of four pins are changed, as shown in

Table 7.

Table 7. Pin Functions

PIN ASSIGNMENTS

SPI

I2C

H/W

MS/ADR0/MD0

ADR0

MD0

MDO/ADR1/MD1

MDO

ADR1

MD1

MDI/SDA/DEMP

MDI

SDA

DEMP

MC/SCL/FMT

SCL

FMT

Both serial controls are available while RST = high and after internal reset completion, which is indicated as a

negative transition (high

≥ low) of a 4096 × SCKI width pulse on the OVF pin.

9.4.2 Hardware Control Mode Configuration

The data format is selected by the MC/SCL/FMT pin between I2S format and I2S mode in TDM format, as shown

in Table 8.

Table 8. Data Format Selection

FMT

MODE CONTROL INTERFACE

Low

I2S audio data format

High

I2S mode, TDM audio data format (supported only for SCKI = 128 fS, 256 fS, or 512 fS)

Submit Documentation Feedback

Product Folder Links: PCM3168A

PCM3168APAPR Datasheet(PDF) 31 Page - Texas Instruments

PCM3168APAPR Datasheet(HTML) 31 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66

Datasheet Download

Link URL