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參數(shù)資料
| 型號： | STLC7546 |
| 廠商： | 意法半導體 |
| 英文描述： | MODEM (V.34bis) Analog Front End(調(diào)制解調(diào)器模擬前端) |
| 中文描述： | 調(diào)制解調(diào)器（V.34bis）模擬前端（調(diào)制解調(diào)器模擬前端） |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 131K |
| 代理商： | STLC7546 |
STLC7546
MODEM (V.34bis) ANALOG FRONT END
November 1998
PLCC28
(Plastic Leaded Chip Carrier Package)
ORDER CODE :
STLC7546CFN
.
GENERAL-PURPOSESIGNALPROCESSING
ANALOGFRONT END (AFE)
.
TARGETED FOR
BUSINESSAUDIOAPPLICATIONS
.
16-BIT OVERSAMPLING
Σ
A/D AND D/A
CONVERTERS
.
89dB SIGNAL-TO-(NOISE+DISTORTION) RA-
TIO FOR SAMPLING FREQUENCY (FS) UP
TO 16kHz@5V
.
94dB DYNAMIC RANGE @5V
.
MAX SAMPLINGFREQUENCY: 45kHz
.
PROGRAMMABLE ADC AND DAC OVER-
SAMPLING
FREQUENCIES.
PLING FREQUENCY = N x 32 x FS, N = 2, 3,
4, 5, 6. THE OVERSAMPLING FREQUENCY
CAN BE FROM 0.5MHzTO 2.88MHz
.
MAX. SAMPLING FREQUENCY : 22.5kHz
.
FILTERBANDWIDTHS :
0.425 x THE SAMPLINGFREQUENCY
.
ON-CHIPREFERENCE VOLTAGE
.
DIFFERENTIAL OUTPUT WITH PROGRAMMA-
BLEATTENUATION: 0dB,6dBORINFINITE
.
TWOSETS OF DIFFERENTIALINPUTS WITH
PROGRAMMABLEGAINSOF 0dBAND 6dB
.
16-BIT SYNCHRONOUS SERIAL INTERFACE
WHOSE OPERATION IS EITHER HARDWARE
ORSOFTWARECONTROLLABLE
.
SINGLEPOWER SUPPLYRANGE: 5V
±
5%OR
DOUBLE POWER SUPPLY : +3.3 TO 5V
±
5%
DIGITALPART;5.0V
±
5%ANALOGPART
.
LOW POWER CONSUMPTION : 100mW OP-
ERATING POWER AT THE NOMINAL FRE-
QUENCY OF 1.536MHz AND 5.0V SINGLE
SUPPLY (70mW @ 3.3V). LESS THAN 50
μ
W
IN THE LOW POWER MODE WHEN THE
MCLKNOT RUNNING
.
0.8
μ
m CMOS PROCESS
.
TQFP44 AND PLCC28 PACKAGES
V.34bis
MODEM
AND
OVERSAM-
DESCRIPTION
The STLC7546is a high-resolutionanalog-to-digi-
tal and digital-to-analog converter targeted for
V.34bismodem and consumer audio applications.
This device has a 16-bit oversampling ADC and
DAC,filtersandcontrollogicfortheserialinterface.
The oversampling frequencies for the ADC and
DAC are user programmable.
The device operation is controlled by reading the
16-bit informationcontrol register.
The major functions of the STLC7546 are:
- To convert the audio-signalto 16-bit 2’s comple-
ment dataformatthrough the ADC channel.
- To communicate with an external digital signal
processorvia serial interfacelogic.
- To convert 16-bit 2’s complement data from a
digitalsignalprocessorto anaudiosignalthrough
the DAC channel.
The STLC7546 consists of two signal-processing
channels, an ADC channel and a DAC channel,
and the associated digital control. The two chan-
nelsoperatesynchronouslyso thatthe transmitted
data to the DAC channel and received data from
the ADCchanneloccurduringthesame timeinter-
val. The data transfer is in 2scomplement format.
Tosavepower,e.g.inlap-topmodemapplications,
the low-power reset mode can be used to reduce
the power consumptionto less than 1mW.
TQFP44
(10 x 10 x 1.4mm)
(Thin Plastic Quad Flat Package)
ORDER CODE :
STLC7546TQFP4Y
1/16
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| STLC7546CFN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MODEM CIRCUIT|ANALOG FRONT END|CMOS|LDCC|28PIN|PLASTIC |
| STLC7546TQFP4Y | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MODEM CIRCUIT|ANALOG FRONT END|CMOS|QFP|44PIN|PLASTIC |
| STLC7550 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LOW POWER LOW VOLTAGE ANALOG FRONT END |
| STLC7550TQF7 | 功能描述:電信線路管理 IC Lo-V Analg Front-End 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 安裝風格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray |
| STLC7550TQF7TR | 功能描述:電信線路管理 IC Lo-V Analg Front-End 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 安裝風格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray |
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