DS90UA101-Q1 datasheet(4/41 Pages) TI1

Part #	DS90UA101-Q1

Description	Multi-Channel Digital Audio Link

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Manufacturer	TI1 [Texas Instruments]

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PDB

VDDPLL

VDDT

DOUT-

DOUT+

VDDCML

GPO3

GPO2

DS90UA101-Q1

(Top View)

DIN5

VDDIO

DAP = GND

DIN4

DIN2

DIN3

VDDD

DIN1

DIN0

25

26

27

28

29

30

31

32

16

15

14

13

12

11

10

9

DS90UA101-Q1

SNLS441A – JULY 2013 – REVISED SEPTEMBER 2013

www.ti.com

DS90UA101-Q1 Pin Diagram

Figure 3. DS90UA101-Q1 — Top View

Pin Descriptions

Pin Name

Pin #

I/O, Type

Description

Digital Audio Interface

SCK

3

Input, LVCMOS w/

System clock input.

pull down

Forward channel audio data is clocked from this pin.

LRCK

2

Input, LVCMOS w/

Word clock input.

pull down

BCK

1

Input, LVCMOS w/

Bit clock input.

pull down

DIN[7:0]

23, 24, 26, 27,

Inputs, LVCMOS

Digital audio data inputs. Each input can be in I2S, TDM, LJ, or RJ format.

29, 30, 31, 32

w/ pull down

LVCMOS Parallel Interface

GPI[3:0]

19, 20, 21, 22

Inputs, LVCMOS

General purpose inputs.

w/ pull down

GPO[3:0]

15, 16, 17, 18

Outputs, LVCMOS

General purpose outputs.

Control and Configuration

SCL

4

Input/Output, Open I2C clock line.

Drain

Must have an external pull-up to VDDIO. DO NOT FLOAT.

Recommended pull-up: 4.7 k

Ω.

SDA

5

Input/Output, Open I2C data input/output line.

Drain

Must have an external pull-up to VDDIO. DO NOT FLOAT.

Recommended pull-up: 4.7 k

Ω.

IDx

6

Input, Analog

Device I2C address select.

The IDx pin on the Serializer is used to assign its I2C device address. See Table 2. DO

NOT FLOAT.

SET

8

Input, Analog

Device SET.

Connect to external 10 k

Ω pull-up to 1.8V rail and 100kΩ pull-down to GND. DO NOT

FLOAT.

4

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DS90UA101-Q1 Datasheet(PDF) 4 Page - Texas Instruments

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