參數(shù)資料
型號(hào)： AS5501
廠商： AUSTRIAMICROSYSTEMS AG
元件分類： 調(diào)制器/解調(diào)器
英文描述： ER 4C 4#8 SKT RECP BOX
中文描述： 2.4 kbps DATA, MODEM, PDSO28
封裝： SOIC-28
文件頁(yè)數(shù)： 13/26頁(yè)
文件大?。?/td> 315K
代理商： AS5501
With the bias-current outputs M1M and P1M the transistors T5 and
T6 get switched on and the driver stage is activated. The TxOut1,2 output-currents are in the
range of 3mA with complementary AC-components. For stability-reasons it is needed to
place a capacitor of 150pF from node VX to VSS.
The circuit with T1-T4 is a unity gain buffer structure. The transformer with attached
capacitor Cr gives a resonator for the used frequency-band.
With the shown test-circuit, the harmonic distortion has to be within the following limits with
a power-line load of (5ohms+50uH) // 50ohms:
ratio to the fundamental
2nd Harm.
3rd Harm.
higher Harm.
min. 70dB
min. 75dB
min. 80dB
In receive-mode, when the bias-currents are turned off, the base of the two output-transistors
are forced by resistors of 100k (Rx) to 0V and Vbuf respectively to guarantee high impedance
of the buffer. The current of the pins TxOut1,2 is 0 (VX is floating). Since the receiver-AGC
is reacting on signal levels at the RXBPF-filter output, high outband noise-components could
give clipping in the first stages of the receiver path. To avoid this, aa attenuation of 16dB
with R2, R3, C3 is realized.
(Monochromatic Noise Measurement: Outband-noise with 0dBV @ line w. 80% AM (1kHz)
=> 12.8Vpp after transformer;
=> 2.0Vpp at pin RXIN; )
The resistors R1, R2, R3 are calculated to have a DC-voltages of Vbuf/2 at node Vout and
2.5V at node RXIN. An external diode for protection against high positive voltages is needed
at Vout (Pin TXFB).
AS5501 / AS5502 Multimode Powerline Modem
Data Sheet
Rev A, May 2000
Page 12/25
BC547
BC557
BC557
BC557
2k7
18
1u
0.47u
2.5:1
100
300
150p
2k7
BD140
BD139
T2
BD139
T3
BD140
T1
0V
TXOUT2
TXOUT1
TXFB
P1M
T5
T6
M1M
24V
RXIN
13.3k
10k
3k
330p
24V
24V
0V
0V
R3
R2
R1
C3
C1
Cr
RB
RB
(RB, R1, R2, R3, C3 has to be adjusted
for 12V VBUF version.)
T4
Rx
100k
Rx
100k
24V
Cr has to be adjusted to proper Fcenter.
VX
Vout
Rx
100k
LINE
3k
300
12
6u8
0V
C2
24V
12
相關(guān)PDF資料
PDF描述
AS5502 Multimode Powerline-Modem
AS6UA25616 2.3V to 3.6V 256K×16 Intelliwatt low-power CMOS SRAM with one chip enable(2.3V 到 3.6V 256K×16 Intelliwatt 低功耗 CMOS 靜態(tài)RAM（帶單片使能）)
AS6UA25616-BC 2.3V to 3.6V 256K】16 Intelliwatt⑩ low-power CMOS SRAM with one chip enable
AS6UA25616-BI 2.3V to 3.6V 256K】16 Intelliwatt⑩ low-power CMOS SRAM with one chip enable
AS6UA25616-TC 2.3V to 3.6V 256K】16 Intelliwatt⑩ low-power CMOS SRAM with one chip enable
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AS5502 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:Multimode Powerline-Modem
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AS550R0JLF 功能描述:線繞電阻器 - 透孔 50 OHM 5% 5W RoHS:否 制造商:Bourns 電阻:10 Ohms 容差:5 % 功率額定值:7 W 溫度系數(shù):200 PPM / C 系列:FW 端接類型:Axial 工作溫度范圍:- 55 C to + 155 C 尺寸:9.5 mm Dia. x 26 mm L 封裝:Ammo 產(chǎn)品:Power Resistors Wirewound High Energy
AS5510 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:Linear Hall Sensor with IC Output
AS5510 AB 制造商:ams 功能描述:Adapter Board
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