DS32508N+ Maxim Integrated Products, DS32508N+ Datasheet - Page 73

• Manufacturer Part Number: DS32508N+
• Description: IC LIU DS3/E3/STS-1 484-BGA
• Manufacturer: Maxim Integrated Products
• Type: Line Interface Units (LIUs)r

Specifications of DS32508N+

• Protocol: IEEE 1149.1
• Voltage - Supply: 1.8V, 3.3V
• Mounting Type: Surface Mount
• Package / Case: 484-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Drivers/receivers: -

Bits 5, 4: Transmit Waveshaping Control (TWSC[5:4]). In DS3 and STS-1 modes, this field adjusts the
amplitude of the second of two rising-edge segments. In E3 mode this field has no effect, except for the 11 value,
which is a special case in which the entire pulse is made wider.
Bits 3, 2: Transmit Waveshaping Control (TWSC[3:2]). In DS3 and STS-1 modes, this field adjusts the
amplitude of the first of two falling-edge segments. In E3 mode this field adjusts the amplitude of the trailing edge
overshoot. The 11 value is a special case in which the entire pulse is made wider.
Bits 1, 0: Transmit Waveshaping Control (TWSC[1:0]). In DS3 and STS-1 modes, this field adjusts the fall time
of the second of two falling-edge segments. In E3 mode this field has no effect, except for the 11 value, which is a
special case in which the entire pulse is made narrower.
00 - normal rise amplitude
01 - decrease second rise amplitude 15%
10 - increase second rise amplitude 15%
11 - increase pulse width by 0.15ns
00 - normal first fall time
01 - decrease first fall time amplitude 15%
10 - increase first fall time amplitude 15%
11 - increase pulse width by 0.15ns
00 - normal second fall time
01 - decrease second fall time amplitude 15%
10 - increase second fall time amplitude 15%
11 - decrease pulse width by 0.15ns
DS3/STS-1 Behavior
DS3/STS-1 Behavior
DS3/STS-1 Behavior
73 of 130
E3 Behavior
normal pulse
normal pulse
normal pulse
increase pulse width by 0.15ns
E3 Behavior
normal undershoot
decrease undershoot 2%
increase undershoot 2%
increase pulse width by 0.15ns
E3 Behavior
normal pulse
normal pulse
normal pulse
decrease pulse width by 0.15ns
DS32506/DS32508/DS32512