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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  
TOUCHPANEL AND AUXILIARY ADC  
Test Conditions  
DBVDD=3.3V, DCVDD = 3.3V, AVDD = TPVDD = 3.3V, TA = +25oC, MCLK = 24.576 MHz, unless otherwise stated.  
PARAMETER  
SYMBOL  
TEST CONDITIONS  
MIN  
TYP  
MAX  
UNIT  
Input Pins X+, X-, Y+, Y-, WIPER/AUX4, COMP1/AUX1, COMP2/AUX2 and BMON/AUX3  
Input Voltage  
AGND  
-0.99  
AVDD  
V
Input leakage current  
AUX pin not selected as  
AUX ADC input  
<10  
nA  
ADC Resolution  
12  
bits  
LSB  
LSB  
LSB  
LSB  
dB  
Differential Non-Linearity Error  
Integral Non-Linearity Error  
Offset Error  
DNL  
INL  
0.15  
+1.75  
3
4
8
Gain Error  
Power Supply Rejection  
Switch matrix resistance  
Programmable Pull-up resistor  
Pen down detector threshold  
Pressure measurement current  
PSRR  
RPU  
IP  
50  
10  
kΩ  
RPU = 000001  
63  
68  
73  
VDD/2  
400  
200  
V
PIL = 1  
PIL = 0  
µA  
BMON/AUX3 (pin 31 only)  
Input Range  
AVDD = 3.3V  
AVDD = 1.8V  
AGND  
AGND  
-3%  
5
V
V
3.3  
Scaling  
1/3  
30  
+3%  
Input Resistance (Note 1)  
during measurement  
average over time  
kΩ  
30 /  
duty cycle  
Note:  
1. Current only flows into pin 31 during a measurement. At all other times, BMON/AUX3 is effectively an open circuit.  
COMPARATORS  
Test Conditions  
AVDD = 3.3V, TA = +25oC, unless otherwise stated.  
PARAMETER  
SYMBOL  
TEST CONDITIONS  
MIN  
TYP  
MAX  
UNIT  
COMP1/AUX1 and COMP2/AUX2 (pins 29, 30)  
Input Voltage  
AGND  
AVDD  
V
Input leakage current  
pin not selected as AUX  
ADC input  
<10  
nA  
Comparator Input Offset  
(COMP1, COMP2 only)  
COMP2 delay (COMP2 only)  
-50  
0
+50  
mV  
s
24.576MHz crystal  
10.9  
PD Rev 4.0 December 2007  
9
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