AK4634 参数 Datasheet PDF下载

[AK4634]

ANALOG CHRACTERISTICS

(Ta=25°C; AVDD = DVDD = SVDD=3.3V; VSS1-3 =0V; fs=8kHz, BICK=64fs; Signal Frequency=1kHz; 16bit Data;

Measurement frequency=20Hz

∼

3.4kHz; EXT Slave Mode; unless otherwise specified)

Parameter

min

typ

max

Units

MIC Amplifier:

MIC, LIN pins ; MDIF bit =

“0”;

(Single-ended input)

Input Resistance

20

30

40

kΩ

Gain

-

0

-

dB

(MGAIN3-0 bits =

“0000”)

-

20

-

dB

(MGAIN3-0 bits =

“0001”)

-

26

-

dB

(MGAIN3-0 bits =

“0010”)

-

32

-

dB

(MGAIN3-0 bits =

“0011”)

-

10

-

dB

(MGAIN3-0 bits =

“0100”)

-

17

-

dB

(MGAIN3-0 bits =

“0101”)

-

23

-

dB

(MGAIN3-0 bits =

“0110”)

-

29

-

dB

(MGAIN3-0 bits =

“0111”)

-

3

-

dB

(MGAIN3-0 bits =

“1000”)

-

6

-

dB

(MGAIN3-0 bits =

“1001”)

MIC Amplifier:

MICP, MICN pins ; MDIF bit =

“1”;

(Full-differential input)

Input Voltage

-

-

0.228

Vpp

(MGAIN3-0 bits =

“0001”)

6)

-

-

0.114

Vpp

(MGAIN3-0 bits =

“0010”)

-

-

0.057

Vpp

(MGAIN3-0 bits =

“0011”)

-

-

0.720

Vpp

(MGAIN3-0 bits =

“0100”)

-

-

0.322

Vpp

(MGAIN3-0 bits =

“0101”)

-

-

0.161

Vpp

(MGAIN3-0 bits =

“0110”)

-

-

0.080

Vpp

(MGAIN3-0 bits =

“0111”)

-

-

1.14

Vpp

(MGAIN3-0 bits =

“1001”)

MIC Power Supply:

MPI pin

Output Voltage

7)

TBD

2.64

TBD

V

Load Resistance

2

-

-

kΩ

Load Capacitance

-

-

30

pF

ADC Analog Input Characteristics:

MIC/LIN ADC, MIC Gain=20dB, IVOL=0dB, ALC1bit =

“0”

Resolution

-

-

16

Bits

Input Voltage (MIC Gain=20dB,

TBD

0.198

TBD

Vpp

TBD

84

-

dB

S/(N+D)

(−1dBFS) (Note

9)

TBD

86

-

dB

D-Range

(−60dBFS)

S/N

TBD

86

-

dB

DAC Characteristics:

Resolution

16

Bits

Mono Line Output Characteristics:

AOUT pin, DAC

→

AOUT, R

L

=10kΩ

TBD

1.98

TBD

Vpp

Output Voltage (Note

LOVL bit = “0”

TBD

2.50

TBD

Vpp

LOVL bit = “1”

85

TBD

-

dB

S/(N+D)

(0dBFS) (Note

9)

93

TBD

-

dB

D-Range

(-60dBFS)

93

TBD

-

dB

S/N

10

-

-

Load Resistance

kΩ

-

-

30

pF

Load Capacitance

Speaker-Amp Characteristics:

SDTI SPP/SPN pins, ALC2 bit =

“0”,

SPKG bit = “0”, R

L

=8Ω + 10μH,

BTL = SVDD=3.3V

Output Power (0dBFS)

-

400

-

mW

S/(N+D)

400mW output

-

20

-

dB

150mW output

-

55

-

dB

TBD

-80

-

dBV

Output Noise Level

Load Resistance

8

-

-

Ω

-

-

30

pF

Load Capacitance

Rev. 0.5

-7-

2007/10