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WM9715LGEFL/RV 参数 Datasheet PDF下载

WM9715LGEFL/RV图片预览
型号: WM9715LGEFL/RV
PDF下载: 下载PDF文件 查看货源
内容描述: AC'97音频和触摸屏CODEC [AC’97 Audio and Touchpanel CODEC]
分类和应用:
文件页数/大小: 77 页 / 900 K
品牌: WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
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Production Data  
WM9715L  
ELECTRICAL CHARACTERISTICS  
AUDIO OUTPUTS  
Test Conditions  
DBVDD=3.3V, DCVDD = 3.3V, AVDD=HPVDD=SPKVDD =3.3V, TA = +25oC, 1kHz signal, fs = 48kHz, 18-bit audio data unless  
otherwise stated.  
PARAMETER  
SYMBOL  
TEST CONDITIONS  
MIN  
TYP  
MAX  
UNIT  
DAC to Line-Out (L/ROUT2 with 10kload)  
Full-scale output  
AVDD = 3.3V, PGA gains  
set to 0dB  
1
V rms  
dB  
Signal to Noise Ratio  
(A-weighted)  
SNR  
85  
90  
Total Harmonic Distortion +  
Noise  
THD+N  
PSRR  
-3dB output  
-86  
50  
-80  
dB  
dB  
Power Supply Rejection  
100mV, 20Hz to 20kHz  
signal on AVDD  
Speaker Output (LOUT2/ROUT2 with 8bridge tied load, INV=1)  
Output Power  
PO  
PO  
Output power is very closely correlated with THD; see below.  
Output Power at 1% THD  
Abs. Max Output Power  
Total Harmonic Distortion  
400  
500  
mW  
mW  
dB  
POmax  
THD  
PO=150mW  
-65  
0.05  
97  
%
Signal to Noise Ratio  
(A-weighted)  
SNR  
90  
dB  
Headphone Output (HPOUTL/R with 16or 32load)  
Output Power per channel  
Total Harmonic Distortion  
(Note 1)  
PO  
Output power is very closely correlated with THD; see below.  
THD  
PO=10mW, RL=16Ω  
-80  
-81  
-77  
-79  
95  
dB  
dB  
PO=10mW, RL=32Ω  
PO=20mW, RL=16Ω  
PO=20mW, RL=32Ω  
-70  
Signal to Noise Ratio  
(A-weighted)  
SNR  
90  
Note:  
1. All THD values are valid for the output power level quoted above – for example, at HPVDD=3.3V and RL=16, THD is  
–80dB when output power is 10mW. Higher output power is possible, but will result in deterioration in THD.  
PD Rev 4.0 December 2007  
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