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參數(shù)資料
| 型號： | WM9712LSEFL |
| 廠商： | Wolfson Microelectronics |
| 元件分類： | Codec |
| 英文描述： | AC97 Audio and Touchpanel CODEC |
| 中文描述： | AC97音頻編解碼器和觸摸屏 |
| 文件頁數(shù)： | 7/78頁 |
| 文件大?。?/td> | 689K |
| 代理商： | WM9712LSEFL |
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Production Data
WM9712L
w
PD Rev 4.0 December 2003
7
ELECTRICAL CHARACTERISTICS
AUDIO OUTPUTS
Test Conditions
DBVDD=3.3V, DCVDD = 3.3V, AVDD=HPVDD=SPKVDD =3.3V, T
A
= +25
o
C, 1kHz signal, fs = 48kHz, 18-bit audio data unless
otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
DAC to Line-Out (HPOUTL/R or MONOOUT with 10k
/ 50pF load)
Full-scale output
AVDD = 3.3V, PGA gains
set to 0dB
Signal to Noise Ratio
(A-weighted)
Total Harmonic Distortion
THD
-3dB output
Power Supply Rejection
PSRR
100mV, 20Hz to 20kHz
signal on AVDD
Speaker Output (LOUT2/ROUT2 with 8
bridge tied load, INV=1)
Output Power
P
O
Output power is very closely correlated with THD; see below.
P
O
=200mW
Total Harmonic Distortion
THD
MIN
TYP
MAX
UNIT
1
V rms
SNR
85
94
dB
-87
50
-80
dB
dB
-67
0.045
-66
0.050
100
P
O
=400mW
-60
dB
%
Signal to Noise Ratio
(A-weighted)
Headphone Output (HPOUTL/R, OUT3 or LOUT2/ROUT2 with 16
or 32
load)
Output Power per channel
P
O
Total Harmonic Distortion
THD
SNR
90
dB
Output power is very closely correlated with THD; see below.
P
O
=10mW, R
L
=16
P
O
=10mW, R
L
=32
P
O
=20mW, R
L
=16
P
O
=20mW, R
L
=32
90
-80
-80
-79
-79
95
-70
dB
Signal to Noise Ratio
(A-weighted)
SNR
dB
Note:
1.
All THD values are valid for the output power level quoted above – for example, at HPVDD=3.3V and R
L
=16
, THD is
–80dB when output power is 10mW. Higher output power is possible, but will result in a deterioration in THD.
相關(guān)PDF資料 |
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| WM9712LSEFT | AC97 Audio and Touchpanel CODEC |
| WM9712LSEFV | AC97 Audio and Touchpanel CODEC |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| WM9712LSEFL/RV | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:AC97 Audio and Touchpanel CODEC |
| WM9712LSEFL/V | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:AC97 Audio and Touchpanel CODEC |
| WM9712LSEFT | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:AC97 Audio and Touchpanel CODEC |
| WM9712LSEFT/RV | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:AC97 Audio and Touchpanel CODEC |
| WM9712LSEFV | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:AC97 Audio and Touchpanel CODEC |
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