900844 datasheet(6/118 Pages) FREESCALE

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Analog Integrated Circuit Device Data

Freescale Semiconductor

900844

INTERNAL BLOCK DIAGRAM

VOUTIMG28

MDPWR

3.6 V

AG15

VIMG28 output voltage node

VPNL33 - 3.3 V/100 mA Switch

PVIN3P3

MDPWR

3.6 V

AJ9

Power supply input, shared by VPNL33 and VSDIO

VOUTPNL33

LOPWR

3.6 V

AG9

VPNL33 output voltage node

VSDIO - 3.3 V/215 mA Switch OR 1.8 V/215 mA LDO

SDIOGT

LOPWR

3.6 V

AB12

Gate driver output for VSDIO pass FET

FBSDIO

SGNL

3.6 V

AC13

Feedback node when VSDIO is in Switch mode; Output

voltage node when VSDIO is in LDO mode.

Internal Supplies

VCORE

LOPWR

3.6 V

B14

Internal supply output voltage node

VCOREDIG

LOPWR

1.5 V

J13

Internal supply output voltage node

VCOREREF

LOPWR

3.6 V

C13

Internal band gap supply output voltage node

LDOREFP8

LOPWR

3.6 V

Internal divided down band gap supply output voltage node

dedicated for LDOs

LDOREFP9

LOPWR

3.6 V

G13

Internal divided down band gap supply output voltage node

dedicated for LDOs

GNDCORE

LOPWRGND

H14

Ground for internal supplies

Input Power Path

VPWR

MDPWR

4.8 V

AB26

Input power node for PMIC

VBAT

LOPWR

4.8 V

AC27

Battery voltage sensing input

GNDBAT

LOPWRGND

AA21

Input supply ground

VNTC

LOPWR

3.6 V

AE29

Bias voltage for NTC resistor stack

NTC

SGNL

3.6 V

AC23

NTC connection node

ISNSBATP

SGNL

4.8 V

AD26

Connect to VBAT

ISNSBATN

SGNL

4.8 V

AF28

Connect to VBAT

PVINVIB

MDPWR

4.8 V

AG13

Always connect to VPWR

Coin Cell Charger

COINCELL

LOPWR

3.6 V

AC29

Coin cell supply input, coin cell charger output

ADC + TS I/F

ADIN10

SGNL

4.8 V

AH20

ADC generic input 1, used as touchscreen input X1, TSX1

ADIN11

SGNL

4.8 V

AB16

ADC generic input 2, used as touchscreen input X2, TSX2

ADIN12

SGNL

4.8 V

AJ19

ADC generic input 3, used as touchscreen input Y1, TSY1

ADIN13

SGNL

4.8 V

AA17

ADC generic input 4, used as touchscreen input Y2, TSY2

ADIN14

SGNL

4.8 V

AE17

ADC generic input 5

ADIN15

SGNL

4.8 V

AC17

ADC generic input 6

ADIN16

SGNL

4.8 V

AG17

ADC generic input 7

ADIN17

SGNL

4.8 V

AH18

ADC generic input 8

Table 1. 900844 Pin Description

Node Name

Type

I/O

Rating

# of

Balls

BGA Location

Pin Description

900844 Datasheet(PDF) 6 Page - Freescale Semiconductor, Inc

900844 Datasheet(HTML) 6 Page - Freescale Semiconductor, Inc

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