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參數(shù)資料
| 型號： | MTC20454-TQ-I |
| 廠商： | 意法半導體 |
| 英文描述： | QUAD INTEGRATED ADSL CMOS ANALOG FRONT END CIRCUIT |
| 中文描述： | 四集成ADSL模擬前端的CMOS電路 |
| 文件頁數(shù)： | 11/15頁 |
| 文件大小： | 513K |
| 代理商： | MTC20454-TQ-I |
11/15
MTC20454
Receive / Transmit Interface
The digital interface is based on a 4 * 8.832 MHz (35.328 MHz) clock. The 8.832MHz 12 bits A/D output
signal or the D/A input signal are SIPO multiplexed over 4 parallel 35.328MHz data lines in the following
table. If OSR = 2 bit is selected, CLKNIB is used as nibble clock (17.664 MHz, disabled in normal mode),
and all the
Table 2. RXi, TXi, CLKWD periods are twice
TX / TXE Signal Dynamic Range
The dynamic range of the signal for both DACs is 12 bits extracted from the available signed 16 bit repre-
sentation coming from the digital processor.
The maximal positive number is 2 11 -1, the most negative number is -2 11, the 3 least significant bits are
ignored.
Any signal exceeding these limits is clamped to the maximal value.
Table 3. TX bit map
RX Signal Dynamic Range
The dynamic range of the signal from the ADC is limited to 13 bits. hose bits are converted to a signed
representation with a maximal positive number of 2 12 -1 and a most negative number of -2 12.
The 2 LSBs are filled with ‘0’.
Table 4. RX bit map in normal mode
Packet Number
Bus Line
Word bit
Packet 1
RX0/TX0
Bit 0
RX1/TX1
Bit 1
RX2/TX2
Bit 2
RX3/TX3
Bit 3
Packet 2
RX0/TX0
Bit 4
RX1/TX1
Bit 5
RX2/TX2
Bit 6
RX3/TX3
Bit 7
Packet 3
RX0/TX0
Bit 8
RX1/TX1
Bit 9
RX2/TX2
Bit 10
RX3/TX3
Bit 11
Packet 4
RX0/TX0
Bit 12
RX1/TX1
Bit 13
RX2/TX2
Bit 14
RX3/TX3
Bit 15
Sign
Sign
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
n.u
n.u
n.u
Sign
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
0
0
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MTC20454-TQ-I1 | 功能描述:射頻無線雜項 ASDL 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 |
| MTC20455 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:QUAD ADSL DMT TRANSCEIVER |
| MTC20455-DQ-IS | 功能描述:電信集成電路 ADSL DMT Transceiver RoHS:否 制造商:STMicroelectronics 類型:Telecom IC - Various 工作電源電壓:4.75 V to 5.25 V 電源電流: 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PQFP-100 封裝:Tray |
| MTC20455MB-I | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:QUAD ADSL DMT TRANSCEIVER |
| MTC20455-MB-I1 | 功能描述:射頻收發(fā)器 ADSL DMT Transceiver RoHS:否 制造商:Atmel 頻率范圍:2322 MHz to 2527 MHz 最大數(shù)據(jù)速率:2000 Kbps 調(diào)制格式:OQPSK 輸出功率:4 dBm 類型: 工作電源電壓:1.8 V to 3.6 V 最大工作溫度:+ 85 C 接口類型:SPI 封裝 / 箱體:QFN-32 封裝:Tray |
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