參數(shù)資料
型號(hào)： MT9075BP
廠(chǎng)商： Mitel Networks Corporation
英文描述： E1 Single Chip Transceiver
中文描述： 素E1單芯片收發(fā)器
文件頁(yè)數(shù)： 8/78頁(yè)
文件大?。?/td> 1008K
代理商： MT9075BP
MT9075A
Preliminary Information
4-136
Functional Description
MT9075A Line Interface Unit (LIU)
Receiver
The receiver portion of the MT9075A LIU consists of
an input signal peak detector, an optional two-stage
equalizer, a smoothing filter, adaptive threshold
comparators, data and clock slicers, and a clock
extractor. Receive equalization gain can be set via
software
control
or
it
automatically by the peak detectors.
can
be
determined
The output of the receive equalizer is conditioned by
a smoothing filter and is passed on to the clock and
data slicer. The clock slicer output signal drives a
phase locked loop, which generates the extracted
clock (E2o). This extracted clock is used to sample
the output of the data comparator.
The LOS output pin (pin 61 in PLCC, pin 57 in
MQFP) is user selectable, by setting control bit LOS/
LOF (page 02H, register 13H, bit 2), to indicate a
loss of signal or loss of basic frame synchronization
condition. In addition, a status bit, LLOS (bit 4 in
page 3, register 18H) is provided to indicate the
presence of a loss signal condition. The occurrence
of a loss signal condition is defined as per I.431, i.e.,
when the incoming signal amplitude is more than 20
dB below the nominal amplitude for a time duration
of at least 1 ms.
The receive LIU circuit requires a terminating
resistor of either 120
or 75
across the device side
of the receive1:1 transformer as shown in Figure 4.
The return loss of the receiver, complying with
G.703, is greater than:
12 dB from 51 kHz to 102 kHz;
18 dB from 102 kHz to 2048 kHz;
14 dB from 2048 kHz to 3072 kHz.
The jitter tolerance of the MT9075A clock extractor
circuit exceeds the requirements of G.823 (Figure 3).
Transmitter
The MT9075A differential line driver is designed to
drive a 1:2 step-up transformer (see Figure 4). In
120
twisted pair applications, a 0.68 uF capacitor is
required between the TTIP and the transmit
transformer. For 75
coaxial cable applications, a
0.68 uF capacitor and two 2.2
series resistors are
required between the transformer and the TTIP and
TRING output pins as shown in Figure 4.
Figure 3 - Typical Jitter Tolerance
18UI
1.5UI
0.2UI
1.667Hz
20Hz
2.4kHz 18kHz 100kHz
Peak to Peak
Jitter Amplitude
(log scale)
Jitter Frequency
(log scale)
MT9075A
Tolerance
相關(guān)PDF資料
PDF描述
MT9075B-1 E1 Single Chip Transceiver
MT9075 ()
MT9076 T1/E1/J1 3.3V Single Chip Transceiver
MT9076AB T1/E1/J1 3.3V Single Chip Transceiver
MT9076 T1/E1/J1 3.3V Single Chip Transceiver(T1/E1/J1 3.3V 單片收發(fā)器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MT9075BP1 制造商:Microsemi Corporation 功能描述:Single Chip Transceiver 1TX 1RX 2.048Mbps 68-Pin PLCC Tube 制造商:Microsemi Corporation 功能描述:FRAMER E1 5V 68PLCC - Rail/Tube 制造商:Microsemi Corporation 功能描述:PB FREE E1 SINGLE CHIP TRANSCEIVER 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC TXRX SGL E1 W/LIU 68PLCC 制造商:Microsemi Corporation 功能描述:IC TXRX SGL E1 W/LIU 68PLCC
MT9075BPR 制造商:ZARLINK 制造商全稱(chēng):Zarlink Semiconductor Inc 功能描述:E1 Single Chip Transceiver
MT9075BPR1 制造商:Microsemi Corporation 功能描述:FRAMER E1 5V 68PLCC - Tape and Reel
MT9076 制造商:MITEL 制造商全稱(chēng):Mitel Networks Corporation 功能描述:T1/E1/J1 3.3V Single Chip Transceiver
MT9076AB 制造商:MITEL 制造商全稱(chēng):Mitel Networks Corporation 功能描述:T1/E1/J1 3.3V Single Chip Transceiver
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