AK2307LV 데이터 시트보기 (PDF) - Asahi Kasei Microdevices

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AK2307LV

SPEECH CODEC for Digital Key telephone (5.0V/3.3V)

Asahi Kasei Microdevices 

ASAHI KASEI

PIN CONDITIONS

[AK2307/LV]

Pin types;

NIN: Normal Input

NOUT: Normal Output

TOUT: Tri-state output

AOUT: Analog output

PWR: Power supply

AIN: Analog Input

Name

HANDT2

HANDT3

HANDT1

HANDT4

HANDR

MIC3

MIC2

MIC1

DAOUT

RAIN

HEADO

SPO

EXRIN

DATA

SCLK

CSN

DR

DX

BCLK

FS

DVSS

DVDD

AVSS

AVDD

PLLCAP

TAGND

RAGND

VREF

Type

AIN

AIN

AOUT

AIN

AOUT

AIN

AIN

AOUT

AOUT

AIN

AOUT

AOUT

AIN

I/O

NIN

NIN

NIN

TOUT

NIN

NIN

PWR

PWR

PWR

PWR

AOUT

AOUT

AOUT

AOUT

Table 1

Pin function

Max

MIn

Cap load Res load

comment

Analog input for Handset microphone

Analog input for Handset microphone

OPamp output for Handset microphone

Analog input for A/D converter

Analog output for Handset receiver

2nd Analog input for A/D converter

1000pF 150ohm

Analog input for External microphone

Output of External microphone amplifier

Analog output of D/A converter

Analog input to RX voice path

RX output for Headset receiver

1000pF 150ohm

RX output for External Speaker Driver

20pF 10kohm

External input for Speaker pre-driver

Data input for internal register access

50pF

Serial data clock for internal register

access

Chip select input

RX PCM data serial input

TX PCM data serial output. Tri-state output 50pF

Bit clock input for DR, DX

8KHz frame sync signal input for PCM I/F

Power supply for digital block:0V

Power supply for digital block: 3.3V

Power supply for Analog block:0V

Power supply for Analog block: 3.3V

Output to connect the PLL loop filter

1.0uF external

Capacitance

capacitance

TX side Analog ground output.

1.0uF external

capacitance

RX side Analog ground output

1.0uF external

capacitance

Voltage reference output

1.0uF external

capacitance

MS0190-E-05

4

2005/12

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