DS21Q58L+ Maxim Integrated Products, DS21Q58L+ Datasheet - Page 54

• Manufacturer Part Number: DS21Q58L+
• Description: IC TXRX E1 QUAD 3.3V 100LQFP
• Manufacturer: Maxim Integrated Products

Specifications of DS21Q58L+

• Function: Transceiver
• Interface: E1
• Number Of Circuits: 4
• Voltage - Supply: 3.14 V ~ 3.47 V
• Current - Supply: 230mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 100-LQFP
• Includes: AIS Alarms Detector and Generator, Loopback Functions, PRBS Generator / Detector, Remote Detector and Generator
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -

DS21Q58 E1 Quad Transceiver
Transmit and receive CMI is enabled through OUTAC.7. When this register bit is set, the TTIP pin outputs CMI-
coded data at normal TTL-type levels. This signal can be used to directly drive an optical interface. When CMI is
enabled, the user can also use HDB3 coding.
When this register bit is set, the RTIP pin becomes a unipolar CMI input. The CMI signal is processed to extract
and align the clock with data. The bipolar code-violation counter counts CVs in the CMI signal. CVs are defined as
consecutive ones of the same polarity, as shown in
Figure
22-2. If HDB3 precoding is enabled, the CVs generated
by HDB3 are not counted as errors.
Figure 22-2. Example of CMI Code Violation
CLOCK
1
1
0
1
0
0
1
DATA
CMI
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