SC14480 データシートの表示（PDF） - Unspecified

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SC14480

1.8V Single Chip for DECT

Unspecified 

Table 1: Pin Description

PIN NAME

TYPE

Drive

(mA)

Reset

state

(Note 2)

DESCRIPTION

LSRn or

AGND

A1

-

O

OUTPUT. Negative loudspeaker output.

OUTPUT. Buffered analog ground if LSRN_MODE = 00.

MICh

A2

-

I

INPUT. Headset microphone input with fixed input protection

MICp

A2

-

I

INPUT. Positive microphone input

MICn

A2

-

I

INPUT. Negative microphone input.

VREFp

A2

-

I

OUTPUT. Positive microphone reference. This pin is shared in

with CIDINp. Make sure that CIDINp input protection is disabled

if using VREFp. (CODEC_TONE_REG[CID_PR_DIS] is set to 1)

VREFm

A1

-

-

Negative microphone reference. This pin must also be con-

nected to VSS Ground, but make sure that the microphone

ground is directly routed to VREFm (VREFm is the star point).

Caller-id opamps + RINGING

CIDINp

A2

-

I

INPUT. Caller-id opamp positive input with switchable input pro-

tection enabled from start-up. This pin is shared in with VREFp.

CIDINn

A2

CIDOUT

A2

RINGING

A2S

RINGn

A2S

RINGp

A2S

RINGOUT

A2S

PARADET

A2S

State of Charge

-

I

INPUT. Caller-id opamp negative input with switchable input pro-

tection enabled from start-up.

CODEC_TONE_REG[CID_PR_DIS]). Input is shared with MICp.

l -

I

OUTPUT. Caller-id opamp output to ADC. This pin is shared with

MICn

tia I

INPUT. Ringer signal detection input to capture timers and ADC.

Shared with RINGOUT and P3[5]

n -

I

ANALOG INPUT. Negative Ringing signal opamp input with

switchable input protection

e(CODEC_TONE_REG[RNG_PR_DIS]).

-

I

ANALOG INPUT. Positive Ringing signal opamp input with

fidswitchable input protection

(CODEC_TONE_REG[RNG_PR_DIS].

-

I

OUTPUT. Ringing opamp output to ADC. Shared with RINGING

n and P3[5].

o-

I

ANALOG INPUT. Parallel set detection input to ADC with switch-

C able input protection (CODEC_TONE_REG[PARA_PR_DIS]).

SOCp

A1

I

INPUT. Battery State of charge positive input

SOCn

A1

I

INPUT. Battery State of charge negative input

Charge pump/ trippler for White LED

CP_C1x

A1

-

I

ANALOG INPUT/OUTPUT. Charge pump Capacitor 1 pin 1

CP_C1y

A1

-

I

ANALOG INPUT/OUTPUT. Charge pump Capacitor 1 pin 2

CP_C2x

A1

-

I

ANALOG INPUT/OUTPUT. Charge pump Capacitor 2 pin 1

CP_C2y

A1

-

I

ANALOG INPUT/OUTPUT. Charge pump Capacitor 2 pin 2

CP_VOUT1 /

A1

-

LED1

I

ANALOG OUTPUT. Charge pump output 1 for White LED

group1. (This pin can also be used as digital port output with

open drain. Refer to AN-D-155 for more information).

CP_VOUT2 /

A1

-

LED2

I

ANALOG OUTPUT. Charge pump output 2 for White LED

group2 or VDDIO for external digital circuit. The booter enables

this output as supply for an external FLASH to boot from. (This

pin can also be used as digital port output with open drain.

Refer to AN-D-155 for more information).

© 2008-2009 SiTel Semiconductor

9

Version: January 21, 2009 v1.0

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