SSM2804CBZ-R7 datasheet(17/36 Pages) AD

17 / 36 page

SSM2804

Rev. 0 | Page 17 of 36

TYPICAL APPLICATION CIRCUITS

BOOST = 0dB TO +20dB

PGA = –12dB TO +18dB

+12dB TO –63dB

31 STEPS

CLASS-D

CLASS-G

0dB TO –75dB

32 STEPS

INA2

RCV–

RCV+

RCV IN–

LSPK IN–

(DIFF IN1–)

LSPK IN+

(DIFF IN1+)

MP3 INL

(DIFF IN2–)

MP3 INR

(DIFF IN2+)

FM INL

(DIFF IN3–)

FM INR

(DIFF IN3+)

RCV IN+

EP–

EARPIECE

EP+

LSPK+

HPL

HEADPHONE

OUTPUT LEFT

HEADPHONE

OUTPUT RIGHT

CLASS-D

OUTPUT LEFT

CLASS-D

OUTPUT RIGHT

LSPK–

RSPK+

RSPK–

INA1

BOOST = 0dB TO +20dB

PGA = –12dB TO +18dB

INB2

INB1

MIX/MUX

BOOST = 0dB TO +20dB

PGA = –12dB TO +18dB

INC2

INC1

CF1

CF2

CPVDD

HPR

BIAS

I2C

CLASS-G

SUPPLY

BIAS

AGND

PGND

SCL

SDA

1µF TO 2.2µF

1µF

CPVSS

–2.2V TO +1.2V

I2C DATA

I2C CLOCK

CPVSS

PVDD

AVDD

SSM2804

10µF

0.1µF

VBATT

2.7V TO 5.5V

CPVDD

1.2V TO 2.2V

10µF

0.1µF

AVDD

2.5V TO 3.6V

SHUTDOWN

Figure 35. Application Circuit with External Components

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