DS21352L+ Maxim Integrated Products, DS21352L+ Datasheet - Page 16

• Manufacturer Part Number: DS21352L+
• Description: IC TXRX T1 1-CHIP 3.3V 100-LQFP
• Manufacturer: Maxim Integrated Products

Specifications of DS21352L+

• Function: Single-Chip Transceiver
• Interface: HDLC, T1
• Number Of Circuits: 1
• Voltage - Supply: 3.14 V ~ 3.47 V
• Current - Supply: 75mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 100-LQFP
• Includes: DSX-1 and CSU Line Build-Out Generator, HDLC Controller, In-Band Loop Code Generator and Detector
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -

4.1.1 TRANSMIT SIDE PINS (cont.)
Signal Name:
Signal Description:
Signal Type:
If enabled via TCR1.2, this pin will be sampled on the falling edge of TCLK for data insertion into either the FDL stream
(ESF) or the Fs–bit position (D4) or the Z–bit position (ZBTSI). See Section 15 for details.
Signal Name:
Signal Description:
Signal Type:
A pulse at this pin will establish either frame or multiframe boundaries for the transmit side. Via TCR2.2, the DS21352/552
can be programmed to output either a frame or multiframe pulse at this pin. If this pin is set to output pulses at frame
boundaries, it can also be set via TCR2.4 to output double–wide pulses at signaling frames. See Section 20 for details.
Signal Name:
Signal Description:
Signal Type:
Only used when the transmit side elastic store is enabled. A pulse at this pin will establish either frame or multiframe
boundaries for the transmit side. Should be tied low in applications that do not use the transmit side elastic store.
Signal Name:
Signal Description:
Signal Type:
When enabled, this input will sample signaling bits for insertion into outgoing PCM T1 data stream. Sampled on the falling
edge of TCLK when the transmit side elastic store is disabled. Sampled on the falling edge of TSYSCLK when the transmit
side elastic store is enabled.
Signal Name:
Signal Description:
Signal Type:
Updated on the rising edge of TCLK with data out of the transmit side elastic store whether the elastic store is enabled or not.
This pin is normally tied to TDATA.
Signal Name:
Signal Description:
Signal Type:
Sampled on the falling edge of TCLK with data to be clocked through the transmit side formatter. This pin is normally tied to
TESO.
Signal Name:
Signal Description:
Signal Type:
Updated on the rising edge of TCLKO with the bipolar data out of the transmit side formatter. Can be programmed to source
NRZ data via the Output Data Format (CCR1.6) control bit. This pin is normally tied to TPOSI.
TLINK
Transmit Link Data
Input
TSYNC
Transmit Sync
Input / Output
TSSYNC
Transmit System Sync
Input
TSIG
Transmit Signaling Input
Input
TESO
Transmit Elastic Store Data Output
Output
TDATA
Transmit Data
Input
TPOSO
Transmit Positive Data Output
Output
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