参数资料
型号: L64781
厂商: LSI CORP
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP100
封装: PLASTIC, QFP-100
文件页数: 54/164页
文件大小: 2003K
代理商: L64781
Signal Specications
6-9
ADC Interface
95
CMCAP
Pin connected to a tap point on internal
resistor driver to create CMO and CMI.
––
94
CMI
Common mode out voltage for analog
circuitry.
––
93
CMO
Common mode out voltage for analog
circuitry.
––
96
RBIAS
External resistor is connected between
this pin and ground to provide accurate
bias current for the analog circuitry on
the ADC.
––
100
VD1
VDD power supply for analog clock
driver.
3.3 V
86
VD2
VDD power supply for analog circuitry.
3.3 V
97
VD3
VDD power supply for n-well guard ring
surrounding ADC.
3.3 V
88
VIM
Analog negative input.
87
VIP
Analog positive input.
90
VREF
Output of an on-chip bandgap voltage
reference.
––
92
VREFM
Negative voltage reference.
91
VREFP
Positive voltage reference.
99
VS1
Ground return for analog clock driver.
89
VS2
Ground return for analog circuitry.
98
VS3
Ground return for analog p+ ring
surrounding ADC.
––
Table 6.7
Signal Summary List (Cont.)
Pad
Pad Name
Description
Volt
Compt
Type
Active
l64781.book Page 9 Friday, January 19, 2001 1:28 PM
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