參數(shù)資料
型號(hào): AK4533
廠(chǎng)商: Asahi Kasei Microsystems Co.,Ltd
元件分類(lèi): Codec
英文描述: Audio Codec with Touch Screen Controller
中文描述: 音頻編解碼器與觸摸屏控制器
文件頁(yè)數(shù): 8/40頁(yè)
文件大?。?/td> 473K
代理商: AK4533
[ASAHI KASEI]
<Revision 0.9a>
July 00
7
ANALOG CHARACTE RISTICS
Ta=25
°
C, AVdd=DVdd=3.0V, signal=1kHz, Sampling Frequency : Fs=44.1kHz Measurement frequency=20
20kHz
unless otherwise specified
Parameter
Mono(1ch) ADC
Resolution
S/N (A weighting)
@ MIC gain=20dB, IPGA=0dB
S/(N+D)
@ MIC gain=20dB, IPGA=0dB, Ain= - 1dBFS
Input voltage Range
@ MIC gain=20dB, IPGA=0dB
MIC Amplifier
Input Impedance
Gain(Fixed)
AGC(IPGA)
Step Size
Gain Control Range
Stereo(2ch)DAC:
Resolution
S/N (A weighting)
@fs=44.1kHz, Fin=1kHz, noise band=20kHz, 256fs_mode
( Reference ) @fs=8kHz, fin=1kHz, noise band=20kHz,
512fs_mode
S/(N+D)
@fs=44.1kHz, Fin=1kHz, noise band=20kHz, 256fs_mode
Output Voltage
Voltage Reference (Audio)
VCOM,VCOMAD
ADC for Touch Panel
Resolution
Integral Linearity Error @100kHz
@ External Rin=500
, FS=3V(TP mode)
Differential Linearity Error @100kHz
@ External Rin=500
, FS=3V(TP mode)
Touch Panel Driver (ADC mode)
ON- Resistance (Top side) @VA=3V, RL=300
ON- Resistance (Bottom side) @VA=3V, RL=300
( Reference ) Drive Current @VA=3V, RL=300
Touch Panel Driver (Pen waiting State)
Pull down Resistance for TSX_Bottom
TPVREFIN (VRIN)
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=300
Full Power Down (PDB=L)
min
typ
Max
Units
16
Bits
dBA
82
77
dB
0.06*VA
Vp-p
30
20
k
:
dB
0.5
dB
dB
-8
27.5
16
Bits
88
84
dBA
dBA
84
dB
0.6*VA
Vp-p
0.5*VA
V
12
Bits
LSB
1.5
1
LSB
10
10
10
mA
20
k
V
2.5
VA
20
9
9
1.2
0.37
10
3
mA
mA
mA
mA
mA
mA
uA
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