This document is about the detailed information of Cirrus Logic CS61884 Octal T1/E1/J1 Line Interface Unit, including product features, external dimension, working voltage, working temperature, package type, etc.
The CS61884 Octal T1/E1/J1 Line Interface Unit provides full‑featured short‑haul LIU functionality for 1.544 Mbps or 2.048 Mbps data transmission. Each channel includes crystal‑less jitter attenuation, internal AMI/B8ZS/HDB3 encoding/decoding, and optional G.772 non‑intrusive monitoring of other channels.
The device is offered in 144‑pin LQFP or 160‑pin FBGA packages, features low power consumption, and includes LOS detection, transmitter short‑circuit protection (<50 mA), and JTAG boundary‑scan compliance. Detailed register maps, pin‑outs, and timing diagrams are provided for both serial and parallel host interfaces.
| Package options | 144‑Pin LQFP or 160‑Pin BGA |
|---|---|
| Transmitter short‑circuit current limiter | < 50 mA |
| LOS detection compliance | T1.231, ITU G.775, ETSI 300‑233 |
| Power consumption | Low Power |
| JTAG boundary‑scan compliance | IEEE 1149.1 |
The CS61884 is offered in a 144‑pin LQFP package or a 160‑pin BGA package.
The transmitter short‑circuit current limiter is rated for less than 50 mA.
LOS detection complies with T1.231, ITU G.775, and ETSI 300‑233 specifications.
Yes, the CS61884 includes a JTAG test interface that conforms to IEEE 1149.1.