AK4533 데이터 시트보기 (PDF) - Asahi Kasei Microdevices

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AK4533

Audio Codec with Touch Screen Controller

Asahi Kasei Microdevices 

[ASAHI KASEI]

ANALOG CHARACTERISTICS

Ta=25°C, AVdd=DVdd=3.0V, signal=1kHz, Sampling Frequency : Fs=44.1kHz Measurement frequency=20 ∼ 20kHz

unless otherwise specified

Parameter

min

typ

Max

Units

Mono(1ch) ADC

Resolution

16

Bits

S/N (A weighting)

82

dBA

@ MIC gain=20dB, IPGA=0dB

S/(N+D)

@ MIC gain=20dB, IPGA=0dB, Ain= - 1dBFS

77

dB

Input voltage Range

@ MIC gain=20dB, IPGA=0dB

0.06*VA

Vp-p

MIC Amplifier

Input Impedance

Gain(Fixed)

30

k:

20

dB

AGC(IPGA)

Step Size

0.5

dB

Gain Control Range

-8

27.5

dB

Stereo(2ch)DAC:

Resolution

16

Bits

S/N (A weighting)

@fs=44.1kHz, Fin=1kHz, noise band=20kHz, 256fs_mode

88

( Reference ) @fs=8kHz, fin=1kHz, noise band=20kHz,

84

512fs_mode

dBA

dBA

S/(N+D)

84

dB

@fs=44.1kHz, Fin=1kHz, noise band=20kHz, 256fs_mode

Output Voltage

0.6*VA

Vp-p

Voltage Reference (Audio)

VCOM,VCOMAD

0.5*VA

V

ADC for Touch Panel

Resolution

12

Bits

Integral Linearity Error @100kHz

@ External Rin=500Ω, FS=3V(TP mode)

Differential Linearity Error @100kHz

1.5

LSB

1

LSB

@ External Rin=500Ω, FS=3V(TP mode)

Touch Panel Driver (ADC mode)

ON- Resistance (Top side) @VA=3V, RL=300Ω

ON- Resistance (Bottom side) @VA=3V, RL=300Ω

( Reference ) Drive Current @VA=3V, RL=300Ω

Touch Panel Driver (Pen waiting State)

10

Ω

10

Ω

10

mA

Pull down Resistance for TSX_Bottom

TPVREFIN (VRIN)

20

kΩ

2.5

VA

V

Power Supply Current (VA+VD)

Total Power ON (exclude TP_Drive current)

Audio ADC + GAMP +IPGA (exclude VCOM)

Audio DAC (2channel) (exclude VCOM)

Touch Panel ADC (exclude TP_Drive current, VCOM)

VCOM (RESTB=L)

Touch Panel Driver Current @VA=3V, RL=300Ω

Full Power Down (PDB=L)

20

mA

9

mA

9

mA

1.2

mA

0.37

mA

10

mA

3

uA

<Revision 0.9a>

7

July 00

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