參數(shù)資料
型號(hào)： 73M1822-IM/F
廠商： Maxim Integrated Products
文件頁數(shù)： 71/82頁
文件大?。?/td> 0K
描述： MICRODAA VOICE DATA/FAX 42-QFN
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 260
系列： MicroDAA™
應(yīng)用： 傳真，調(diào)制解調(diào)器，尋呼機(jī)
接口： 串行
電源電壓： *
封裝/外殼： 42-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 42-QFN（8x8）
包裝： 管件
安裝類型： 表面貼裝
DS_1x22_017
73M1822/73M1922 Data Sheet
Rev. 1.6
73
Auxiliary A/D Converter Status Bits
RNG
0x1A[7:0]
R
Result of Auxiliary A/D measuring the attenuated ring voltage.
Note: 1 lsb=1.31/128=~10.23 mV; 1’s compliment.
Example: 00100000
327 mV or Ring Voltage=32.7 V
LV
0x1B[7:1]
R
Line Voltage On and Off Hook
LV contains the seven most significant bits of an 8-bit A/D
representation of the voltage of the input of pin DCI. The voltage at
the DCI pin is equal to the decimal value of LV bits [7:1] x 21.87
mV. For example, if the value of 0100000 is read from LV bits
[7:1], this has a decimal value of 32, therefore DCI voltage equals
32 x 21.87 = 700 mV.
Note that the voltage at the DCI pin is the voltage divided by 5 (off
hook) or 100 (on hook). When offhook the diode bridge, switch
saturation voltage, etc. should also be added to calculate the
voltage at tip and ring.
LC
0x1C[7:1]
R
Loop Current in DC Path
Result of Auxiliary A/D measuring the Loop Current (7-bit
resolution, least significant bits only).
Note LC0=1 lsb=1.31/128=~10.23 mV=1.25 mA; magnitude only.
The value of the resistor between the rectifier bridge and the DCS
pin is assumed to be 8.2
.
Example: 0000011
30.7 mV/RE=3.74 mA; 0010000 20 mA
Note: The AC path also has ~7 mA of loop current that should be
added to get the total loop current provided by the line.
Line Sensing Control
DET
0x03[2]
R
Detection of Voltage or Current Fault
0 = None of the three conditions is detected. (Default)
1 = Indicates the detection of one of three conditions:
Under Voltage, Over Voltage and Over Current.
This status bit is reset when read. This is a maskable interrupt. It
is enabled by the ENDET bit.
ENDET
0x05[2]
W
Enables Line Sensing Interrupt on Host Side Device
This bit controls whether an interrupt is generated based upon the
detection of Under Voltage, Over Voltage and Over Current.
0 = Disable detector interrupt. (Default)
1 = Enable detector interrupt.
ENDT
0x12[1]
WO
Enable Detectors on Line Side Device
0 = UVDT, OVDT and OIDT conditions are ignored. (Default)
1 = Enables UVDT, OVDT and OIDT in the Line-Side Device and
allows them to be used in the Host-Side Device.
Under-Voltage Detection Control and Status
ENUVD
0x15[2]
WO
Enable Under Voltage Detector on Line Side Device
1 = Under Voltage Detector Enabled. When enabled, the ENNOM
bit is temporarily set to the wide bandwidth mode if an
under-voltage condition detected to allow fast reacquisition of the
line.
UVDET
0x1E[6]
R
Under-Voltage Detection on Line Side Device
0 = Under Voltage condition is not detected at VPS. (Default)
1 = Under Voltage condition is detected at VPS.
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73M1822-IMR/F 功能描述:電信線路管理 IC MicroDAA w/Serial Interface RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray
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73M1866B-IFX 功能描述:電信線路管理 IC MicroDAA w/PCM Highway RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray
73M1866B-IM/F 功能描述:電信線路管理 IC MicroDAA w/PCM Highway RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray
73M1866B-IMR/F 功能描述:電信線路管理 IC MicroDAA w/PCM Highway RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray
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