參數(shù)資料
型號(hào)： 78M6613-IMR/F/P
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 電源管理
英文描述： 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC32
封裝： 5 X 5 MM, ROHS COMPLIANT, QFN-32
文件頁(yè)數(shù)： 31/33頁(yè)
文件大?。?/td> 957K
代理商： 78M6613-IMR/F/P
DS_6613_018
78M6613 Data Sheet
Rev. 1.1
7
1.2.5
Temperature Sensor
The 78M6613 includes an on-chip temperature sensor implemented as a bandgap reference. It is used
to determine the die temperature. The MPU reads the temperature sensor output during alternate
multiplexer cycles. The primary use of the temperature data is to determine the magnitude of
compensation required to offset the thermal drift in the system (see Section 3.3 Temperature
1.2.6
Functional Description
The AFE functions as a data acquisition system, controlled by the MPU. The input signals (A0, A1, A2,
and A3) are sampled and the ADC counts obtained are stored in CE DRAM where they can be accessed
by the CE and, if necessary, by the MPU. Alternate multiplexer cycles are initiated less frequently by the
MPU to gather access to the slow temperature signal.
A0
A1
MUX
VREF
4.9152 MHz
VBIAS
CROSS
CK32
VREF
MUX
CTRL
MUX
V3P3A
FIR
VBIAS
Σ
ADC
CONVERTER
+
-
VREF
TEMP
FIR_DONE
FIR_START
A2
A3
Figure 2: AFE Block Diagram
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