AK4635 datasheet(7/81 Pages) AKM

7 / 81 page

[AK4635]

Rev. 0.6

2007/10

- 7 -

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

Gain

(MGAIN3-0 bits = “0000”)

(MGAIN3-0 bits = “0001”)

(MGAIN3-0 bits = “0010”)

(MGAIN3-0 bits = “0011”)

(MGAIN3-0 bits = “0100”)

(MGAIN3-0 bits = “0101”)

(MGAIN3-0 bits = “0110”)

(MGAIN3-0 bits = “0111”)

(MGAIN3-0 bits = “1000”)

(MGAIN3-0 bits = “1001”)

MIC Amplifier: MICP, MICN pins ; MDIF bit = “1”; (Full-differential input)

Input Voltage

(MGAIN3-0 bits = “0001”)

0.228

Vpp

(Note 7)

(MGAIN3-0 bits = “0010”)

0.114

Vpp

(MGAIN3-0 bits = “0011”)

0.057

Vpp

(MGAIN3-0 bits = “0100”)

0.720

Vpp

(MGAIN3-0 bits = “0101”)

0.322

Vpp

(MGAIN3-0 bits = “0110”)

0.161

Vpp

(MGAIN3-0 bits = “0111”)

0.080

Vpp

(MGAIN3-0 bits = “1001”)

1.14

Vpp

MIC Power Supply: MPI pin

Output Voltage

(Note 8)

TBD

2.64

TBD

Load Resistance

Load Capacitance

ADC Analog Input Characteristics: MIC/LIN

ADC, MIC Gain=20dB, IVOL=0dB, ALC1bit = “0”

Resolution

Bits

Input Voltage (MIC Gain = 20dB) (Note 9)

TBD

0.198

TBD

Vpp

S/(N+D)

(

−1dBFS) (Note 10)

TBD

D-Range

(

−60dBFS)

TBD

S/N

TBD

DAC Characteristics:

Resolution

Bits

Mono Line Output Characteristics: AOUT pin, DAC

→ AOUT, RL=10kΩ

Output Voltage (Note 11) LOVL bit = “0”

TBD

1.98

TBD

Vpp

LOVL bit = “1”

TBD

2.50

TBD

Vpp

S/(N+D)

(0dBFS) (Note 10)

TBD

D-Range

(-60dBFS)

TBD

S/N

TBD

Load Resistance

Load Capacitance

Speaker-Amp Characteristics: SDTI

SPP/SPN pins, ALC2 bit = “0”, SPKG bit = “0”, RL=8Ω + 10μH,

BTL, SVDD=3.3V

Output Power (0dBFS)

(Note 12)

400

S/(N+D)

400mW Output

150mW Output

Output Noise Level

TBD

-80

dBV

Load Resistance

Load Capacitance

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