参数资料
型号: MIC3000BMLTR
厂商: MICREL INC
元件分类: 数字传输电路
英文描述: ATM/SONET/SDH SUPPORT CIRCUIT, QCC24
封装: 4 X 4 MM, MLF-24
文件页数: 7/68页
文件大小: 444K
代理商: MIC3000BMLTR
October 2004
15
M9999-101204
MIC3000
Micrel
ADC Resolution
Channel
(bits)
Conditions
Input Range (V)
LSB(1)
TEMP
8
N/A
1°C
VAUX
8
See Table 6
VMPD
8
GAIN = 0; BIASREF = 0
GNDA – VREF
4.77mV
GAIN = 0; BIASREF = 1
VDDA – (VDDA – VREF)
GAIN = 1; BIASREF = 0
GNDA – VREF/4
1.17mV
GAIN = 1; BIASREF = 1
VDDA – (VDDA – VREF/4)
VILD
8
VILD– = VDDA
VDDA – (VDDA – VREF)
4.77mV
VILD– = GNDA
GNDA – VREF
VRX
8
n/a
0 – VREF
4.77mV
Table 5. A/D Input Signal Ranges and Resolutions
Note:
1. Assumes typical VREF value of 1.22V.
Channel
VAUX[2:0]
Input Range (V)
LSB(1) (mV)
VIN
000 = 00h
0V to 5.5V
25.6mV
VDDA
001 = 01h
0V to 5.5V
25.6mV
VBIAS
010 = 02h
0V to 5.5V
25.6mV
VMOD
011 = 03h
0V to 5.5V
25.6mV
APCDAC
100 = 04h
0V to VREF
4.77mV
MODDAC
101 = 05h
0V to VREF
4.77mV
FLTDAC
110 = 06h
0V to VREF
4.77mV
Table 6. VAUX Input Signal Ranges and Resolutions
Note:
1. Assumes typical VREF value of 1.22V.
VILD–
TEMP
SENSOR
VAUX[2:1]
FLTDAC
MODDAC
APCDAC
VBIAS
VMOD
VDDA
VIN
VILD+
VRX
VMPD
7-CH
MUX
5-CH
MUX
TEMP
SENSOR
SIGMA-DELTA ADC
Figure 2. Analog-to-Digital Converter Block Diagram
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