| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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6,565 pcs
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6565 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The DS21Q43AT from Analog Devices is a Quad E1 Framer IC that integrates four independent E1 (CEPT or PCM-30) / ISDN-PRI framing transceivers onto a single chip. This device offers substantial space savings for applications requiring multiple E1 framers.
Each of the four framers is fully independent, including their transmit and receive sections. They support framing to FAS, CAS, CCS, and CRC4 formats. The IC features an 8-bit parallel control port and dual two-frame elastic stores per framer, capable of connecting to asynchronous or synchronous backplanes up to 8.192 MHz.
Key features include counters for various error types like bipolar violations, CRC4 code word errors, and FAS word errors. It also supports programmable output clocks for Fractional E1 and per-channel loopback applications. The DS21Q43AT operates from a 4.5V to 5.5V supply and is available in a 128-pin TQFP package, suitable for surface mounting.
This IC meets specifications including CCITT/ITU G.704, G.706, G.962, and I.431, as well as ETS 300 011 and ETS 300 233. It is pin-compatible with the DS21Q41B Quad T1 Framer.
The operating voltage is 4.5V to 5.5V.
The DS21Q43AT is available in a 128-LQFP package.
The operating temperature range is 0°C to 70°C.
The RoHS status is RoHS3 Compliant.
The DS21Q43AT has four independent E1 framing transceivers.
It supports framing to FAS, CAS, CCS, and CRC4 formats.