參數(shù)資料
型號(hào)： SI3050-E1-GM
廠商： Silicon Laboratories Inc
文件頁(yè)數(shù)： 61/128頁(yè)
文件大?。?/td> 0K
描述： IC VOICE DAA SYSTEM SIDE 24QFN
標(biāo)準(zhǔn)包裝： 75
系列： *
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Si3050 + Si3011/18/19
38
Rev. 1.5
5.27. Gain Control
The Si3050 supports multiple levels of gain and
attenuation for the transmit and receive paths.
The TXG2 and RXG2 bits (Registers 38–39) enable
gain or attenuation in 1 dB increments for the transmit
and receive paths (up to 12 dB gain and 15 dB
attenuation). The TGA2 and RGA2 bits select either
gain or attenuation. The TXG3 and RXG3 bits
(Registers 40–41) enable gain or attenuation in 0.1 dB
increments up to 1.5 dB for the transmit and receive
paths. The TGA3 and RGA3 bits select either gain or
attenuation. The transmit and receive paths can be
individually muted with the TXM and RXM bits
(Register 15). The signal flow through the Si3050 and
the Si3011/18/19 is shown in Figures 27–28.
Figure 27. Si3011/18/19 Signal Flow Diagram
Figure 28. Si3050 Signal Flow Diagram
5.28. Transhybrid Balance
The Si3050 contains an on-chip analog hybrid that
performs the 2- to 4-wire conversion and near-end echo
cancellation. This hybrid circuit is adjusted for each ac
termination setting selected to achieve a minimum
transhybrid balance of 20 dB when the line impedance
matches the impedance set by ACIM.
The Si3050 also offers a digital hybrid stage for
additional near-end echo cancellation. For each ac
termination setting, the eight programmable hybrid
registers (Registers 45–52) can be programmed with
coefficients to increase cancellation of real-world line
impedances. This digital filter can produce 10 dB or
greater of near-end echo cancellation in addition to the
trans-hybrid loss from the analog hybrid circuitry.
Coefficients
are
2s
complement,
where
unity
is
represented as binary 0100 0000b, the maximum value
as binary 0111 1111b, and the minimum value as binary
1000 000b. See AN84 for a more detailed description of
the digital hybrid and how to use it.
To
Si3050
ADC
DAC
Link
Analog
Hybrid
ACT
TX
CO
0.6 Hz
HPF
Digital
Hybrid
IIRE
Digital
Filter
TXG2
To
Si3011/18/19
Link
TXG3
TXA3
DRX
DTX
1 dB
Gain
Steps
0.1 dB
Gain/ATT
Steps
TXA2
1 dB
Attenuation
Steps
RXA2
1 dB
Attenuation
Steps
Digital
IIRE
Filter
RXG3
0.1 dB
Gain/ATT
Steps
RXA3
1 dB
Gain
Steps
RXG2
Selectable
200 Hz
HPF
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參數(shù)描述
SI3050-E1-GMR 制造商:Silicon Laboratories Inc 功能描述:SI3050 VOICE DAA SYSTEM-SIDE - LEAD-FREE - Tape and Reel 制造商:Silicon Laboratories Inc 功能描述:IC VOICE DAA SYSTEM SIDE 24QFN 制造商:Silicon Laboratories Inc 功能描述:Si3050 Voice DAA System-Side
Si3050-E1-GT 功能描述:電信線路管理 IC System-side Voice DAA 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
SI3050-E1-GTR 制造商:Silicon Laboratories Inc 功能描述:SI3050 VOICE DAA SYSTEM-SIDE - Tape and Reel 制造商:Silicon Laboratories Inc 功能描述:IC VOICE DAA SYSTEM SIDE 24QFN 制造商:Silicon Laboratories Inc 功能描述:Si3050 Voice DAA System-Side
Si3050-E-FM 功能描述:電信語(yǔ)音調(diào)制 IC Si3050 Voice DAA System-Side RoHS:否 制造商:Epson Electronics America 產(chǎn)品: 應(yīng)用:Voice Guidance product 封裝 / 箱體:PQFP-52 電源電壓-最大:3.6 V, 5.5 V 最大工作溫度: 最小工作溫度: 封裝:
SI3050-E-FMR 功能描述:電信線路管理 IC Si3050 Voice DAA System-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
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