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參數(shù)資料
| 型號： | 73M1916-IM/F |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 46/88頁 |
| 文件大小： | 0K |
| 描述： | MICRODAA SET FXO OF VOIP 32-QFN |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 490 |
| 系列： | MicroDAA™ |
| 功能： | 數(shù)據(jù)存取裝置（DAA） |
| 接口： | PCM，SPI |
| 電路數(shù)： | 1 |
| 電源電壓： | 3 V ~ 3.6 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 32-VFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 32-QFN 裸露焊盤（5x5） |
| 包裝： | 散裝 |
| 包括： | * |
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73M1866B/73M1966B Data Sheet
DS_1x66B_001
50
Rev. 1.6
8.6.3
73M1x66B Transmit Spectrum
Figure 28 shows the transmit spectrum observed on the line from dc to 32 kHz for a sample frequency
(Fs) of 8 kHz. The transmit signal is band-limited (by default) to Fs/2=4 kHz and is flat (with 0.2 dB ripple)
to 3.65 kHz and is marked as Txdb(x) in the figure. All frequencies double for a 16 kHz sample rate
Also shown, and marked as signaldb(x), is the baseband signal from 1 kHz to 2 kHz for an 8 kHz sample
rate (2 kHz to 4 for a 16 kHz sample rate). The aliases of signaldb(x) are shown as aliasdb(x) and are
attenuated significantly with better than 80 dB attenuation at 8 kHz, better than 60 dB at 16 kHz, better
than 100 dB at 24 kHz, etc for an 8 kHz sample rate and the frequencies double for a 16 kHz sample rate.
0
4
8
12
16
20
24
28
32
140
120
100
80
60
40
20
0
20
Transmit Spectrum
Freq
S
pe
ct
rum
(dB)
20
140
signaldb x
( )
aliasdb x
( )
Txdb x
( )
32
0
16x
Figure 28: Transmit Spectrum to 32 kHz for an 8 kHz Sample Rate
8.7
Receive Path Signal Processing
8.7.1
General Description
In the receive path, the signal from the telephone line is input to the anti-aliasing filter and passed through
a selectable low pass (notch) filter, which can be used to attenuate in-band Billing Tones. The analog
signal is digitized by a sigma-delta analog to digital converter. The resulting high frequency one-bit data
stream is decimated and sent to the Host-Side Device via the barrier. Another decimation FIR filter in the
Host-Side Device filters the received data and sends it to the host DSP for processing.
The response of the receive path, in conjunction with the decimation filter in the Host-Side Device,
provides a flat pass-band response to 3.342 kHz at an 8 kHz sample rate or 6.744 kHz with a 16 kHz
sample rate with 0.2 dB ripple. The 3 dB bandwidth is 3.58 kHz at 8kHz sample rate or 7.226 kHz at a
16 kHz sample rate. . The one-bit data stream is 1.536 Mbps for an 8 kHz sample rate or 3.072 Mbps
with a 16 kHz sample rate.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 73M1916-IMR/F | 功能描述:電信線路管理 IC DAA-FXO VOLP System Line Side 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 |
| 73M1916-IVT/F | 功能描述:電信線路管理 IC DAA-FXO VOLP System Line Side 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 |
| 73M1916-IVTR/F | 功能描述:電信線路管理 IC DAA-FXO VOLP System Line Side 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 |
| 73M1922-DB | 功能描述:網(wǎng)絡(luò)開發(fā)工具 73M1922 Demo Brd RoHS:否 制造商:Rabbit Semiconductor 產(chǎn)品:Development Kits 類型:Ethernet to Wi-Fi Bridges 工具用于評估:RCM6600W 數(shù)據(jù)速率:20 Mbps, 40 Mbps 接口類型:802.11 b/g, Ethernet 工作電源電壓:3.3 V |
| 73M1966B-DB | 功能描述:網(wǎng)絡(luò)開發(fā)工具 73M1966B Demo Brd RoHS:否 制造商:Rabbit Semiconductor 產(chǎn)品:Development Kits 類型:Ethernet to Wi-Fi Bridges 工具用于評估:RCM6600W 數(shù)據(jù)速率:20 Mbps, 40 Mbps 接口類型:802.11 b/g, Ethernet 工作電源電壓:3.3 V |
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