MC34825 datasheet(3/39 Pages) FREESCALE

Teilenummer	MC34825

Bauteilbeschribung	Micro-USB Interface IC Supporting Universal Charging Solution and Wired Accessories

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Hersteller	FREESCALE [Freescale Semiconductor, Inc]

Direct Link	http://www.freescale.com

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Analog Integrated Circuit Device Data

Freescale Semiconductor

3

34825

PIN CONNECTIONS

TRANSPARENT

TOP VIEW

SPK_R

SPK_L

MIC

D+

D-

VDD

INT

I2C_SDA

I2C_SCL

OUT

GND

1

2

3

4

5

67

8

9

10

11

12

13

14

15

16

17

18

19

20

21

Figure 3. 34825 Pin Connections

Table 1. 34825 Pin Definitions

A functional description of each pin can be found in the Functional Pin Description section on page 13.

Pin Number

Pin Name

Pin Function

Formal Name

Definition

1

SPK_R

Input

Speaker right channel Right channel input for speaker signals

2

SPK_L

Input

Speaker left channel

Left channel input for speaker signals

3

MIC

Output

Microphone output

Microphone output to the baseband of the cell phone system

4

D+

IO

D+ of the USB

transceiver

D+ line of the USB transceiver

5

D-

IO

D- of the USB

transceiver

D- line of the USB transceiver

6

RXD

Output

UART receiver

Receive line of the UART

7

TXD

Input

UART transmitter

Transmit line of the UART

8

TEST2

Output

TEST cable type

indicator

Push-pull output to indicate the type of the test cable. This pin is internally

pulled up to the VDDIO voltage.

9

VDDIO

Input

IO power supply

IO supply voltage. The VDDIO voltage is used as the reference voltage

for the I2C bus signals and the pull-up voltage for the TEST2 output. This

pin also functions as a hardware reset to the IC.

10

TEST1

Output

TEST cable indicator

Open-drain output to indicate the connection of a test cable

11

VDD

Input

Power supply

IC power supply input

12

INT

Output

Interrupt output

Open-drain interrupt output

13

I2C_SDA

IO

I2C data

Data line of the I2C interface

14

I2C_SCL

Input

I2C clock

Clock line of the I2C interface

15

OUT

Output

Power output

The output of the power MOSFET pass switch

16

ISET

Output

Charge current setting Open-drain output to set the charger current

17

VBUS

Input

VBUS power supply

VBUS line of the Mini or micro-USB connector

Ähnliche Beschreibung - MC34825

Hersteller	Teilenummer	Datenblatt	Bauteilbeschribung
Freescale Semiconductor...	34825	971Kb / 39P	Micro-USB Interface IC
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