products > ima
The flexibility you couldn't find elsewhere
The MT90222, MT90223, and MT90224 are
multi-rate inverse multiplexing for ATM (IMA) and transmission
convergence (TC) devices that process ATM traffic for transmission
over T1/E1, fractional T1/E1, and DSL lines. With this series of
ICs, we provide complete hardware and software IMA solutions. The
ICs integrate features that optimize flexibility and ease
implementation of broadband access equipment.|
The MT90222 is a four-port IMA/TC PHY that enables transmission of ATM cells over a group of 4 independent T1/E1 or DSL links, and accommodates up to 4 IMA logical groups. Individual links also support transmission rates of up to 10 Mb/s.
The MT90223 is an eight-port IMA/TC PHY that enables transmission of ATM cells over a group of 8 independent T1/E1 or DSL links, and accommodates up to 8 IMA logical groups. Each port supports data rates up to 5 Mb/s."
The MT90224 is a 16-port IMA/TC PHY that enables transmission of ATM cells over a group of 16 independent T1/E1 or DSL links, and accommodates up to 8 IMA logical groups. Data rates of up to 2.5 Mb/s are also supported through a serial bus interface.
IMA has been used very successfully to bridge the bandwidth gap between T1/E1 and DS3/E3 in ATM broadband access applications. With the rapidly expanding popularity of this function comes the market demand for a variety of configurations: 4 ports, 8 ports, 16 ports, 24 ports and 32 ports. The MT90222/3/4 series of IMAs address this requirement in a seamless and cost-effective fashion. DSL deployment provides an inexpensive means for broadband users to be connected to the ATM network.
Again, our multi-rate IMAs offer a simple solution to doubling or quadrupling this bandwidth without costly installation expenses on the part of service providers.
|Design Scalable from 4 to 32 Ports|
|Number of Ports||4||8||16||24||32|
|IMA Chip Position 1||4-Port IMA MT90222||8-Port IMA MT90223||16-Port IMA MT90224||16-Port IMA MT90224||16-Port IMA MT90224|
|IMA Chip Position 2||Not Populated||Not Populated||Not Populated||8-Port IMA MT90223||16-Port IMA MT90224|
|MT9045||Dual reference frequency selectable 3.3V Digital PLL with multiple clock outputs for T1/E1 (ITU-T G.812 type IV), Stratum( 3, 4, 4E) and STS-3/OC3 systems|
|MT90503||2048VC AAL1 SAR|
|MT90528||28 Port AAL1 SAR|
|MT9072||Octal T1/E1/J1 Framer|
|MT9076B||T1/E1/J1 3.3V Single Chip Transceiver|
|MT93L00||Multi-Channel Voice Echo Canceller|
|MT93L04||128-Channel Voice Echo Canceller|
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