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參數(shù)資料
| 型號(hào)： | ST70136B |
| 廠(chǎng)商： | 意法半導(dǎo)體 |
| 英文描述： | CPE ADSL ANALOG FRONT END |
| 中文描述： | 終端ADSL模擬前端 |
| 文件頁(yè)數(shù)： | 12/24頁(yè) |
| 文件大小： | 361K |
| 代理商： | ST70136B |
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ST70136
12/24
4.8 - Tone Detector
The tone detector is dedicated for remote activation. It operates during SUSPEND mode with PWD = 0
only. When the tone detector level received Vin over tone 40 or 72 is greater than 15
μ
V peak to peak, the
ACTD pin is set to wake up the modem.
ACTD pin is resetted when the AFE is back in full operating mode (SUSPEND = 0, PWD = 0). The maxi-
mum signal sensitivity at the Tone detector inputs is 50mV peak to peak.
4.9 - Mode Management
4.9.1 - General
The ST70136 can be used in a various range of ATU-R equipments, but a specific mode management
address USB application in its different modes.
In following table, "CPE" is an USB ADSL modem application done with a ST70136 AFE and a ST70137
DMT. The CPE is connected to an USB port of an equipment.
Table 8 :
ST70136 / USB Operating Mode Configurations
SUSPEND
PWD
USB Mode Description
0
0
Active mode
The CPE application is in operative mode, its current consumption is less than 500 mA.
ST70136 is power-up, the Tone detector is OFF and CLKM output is enabled.
Enumerating mode
The CPE application is in the configuration process, plug in, its current consumption is
less than 100 mA.
ST70136 analog part is in power done mode, the digital part is enabled and CLKM
output is enabled.
Suspend mode after enumerating mode
After enumerating, the CPE application is in suspend mode, in this mode the CPE must
be able to wake up the equipment when a tone is received, its current consumption is
less than 2.5 mA.
ST70136 analog and digital parts are in power down mode, the Tone detector is
activated and CLKM output is disabled.
Stand by mode
The CPE is not configured and in stand by mode, it could be wake up only by the
equipment, its current consumption is less than 500
μ
A.
ST70136 is fully in stand by mode and CLKM is disabled.
0
1
1
0
1
1
Figure 5 :
USB Power Management Operating Modes
Plug in
Enumerating mode
PWD = 1
SUSPEND = 0
Suspend mode
PWD = 0
SUSPEND = 1
Stand by mode
PWD = 1
SUSPEND = 1
Active mode
PWD = 0
SUSPEND = 0
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ST70136G | CPE ADSL ANALOG FRONT END |
| ST70137 | UNICORNTM PCI & USB CONTROLLERLESS ADSL DMT TRANSCEIVER |
| ST70137TQFP | UNICORNTM PCI & USB CONTROLLERLESS ADSL DMT TRANSCEIVER |
| ST7250 | 8-BIT MCU FOR CAN WITH 32K ROM, 1K RAM, EEPROM, ADC, WDG, PWM/BRM, 2 TIMERS, SPI AND SCI INTERFACES |
| ST7250A6 | 8-BIT MCU FOR CAN WITH 32K ROM, 1K RAM, EEPROM, ADC, WDG, PWM/BRM, 2 TIMERS, SPI AND SCI INTERFACES |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ST70136G | 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:CPE ADSL ANALOG FRONT END |
| ST70136Q | 功能描述:射頻無(wú)線(xiàn)雜項(xiàng) ADSL Analg Front-End RoHS:否 制造商:Texas Instruments 工作頻率:112 kHz to 205 kHz 電源電壓-最大:3.6 V 電源電壓-最小:3 V 電源電流:8 mA 最大功率耗散: 工作溫度范圍:- 40 C to + 110 C 封裝 / 箱體:VQFN-48 封裝:Reel |
| ST70137 | 制造商:STMicroelectronics 功能描述: |
| ST70137TQFP | 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:UNICORNTM PCI & USB CONTROLLERLESS ADSL DMT TRANSCEIVER |
| ST70138 | 制造商:STMicroelectronics 功能描述: |
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