SY89540UMI TR Micrel Inc, SY89540UMI TR Datasheet - Page 12

• Manufacturer Part Number: SY89540UMI TR
• Description: IC XPOINT SWITCH 3.2GBPS 44-MLF
• Manufacturer: Micrel Inc
• Series: SY89r

Specifications of SY89540UMI TR

• Function: Crosspoint Switch
• Circuit: 1 x 4:4
• Voltage Supply Source: Single Supply
• Voltage - Supply, Single/dual (±): 2.375 V ~ 2.625 V
• Current - Supply: 200mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 44-MLF®, QFN
• Number Of Arrays: 1
• Differential Data Transmission: Yes
• Power Supply Requirement: Single
• Mounting: Surface Mount
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Operating Temperature Classification: Industrial
• Cascading Capability: No
• Line Code: NRZ
• On-chip Buffers: No
• On-chip Decoder: No
• On-chip Latch Circuit: No
• On-chip Mux/demux: No
• Programmable: No
• Dual Supply Voltage (typ): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Dual Supply Voltage (min): Not RequiredV
• Input Level: CML/LVDS/LVPECL
• Output Level: LVDS
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: SY89540UMITR; SY89540UMITR

Input and Output Stage Internal
Termination
December 2007
Figure 3. Simplified Differential Input Stage
12
Output Stage Internal Termination
On a nominal 1.25V common mode above ground,
LVDS specifies a small swing of 350mV, typical. The
common mode voltage has tight limits to permit large
variations in ground between an LVDS driver and
receiver. Also, change in common mode voltage, as
a function of data input, is kept to a minimum to
keep EMI low.
Figure 4b. LVDS Common Mode Measurement
Figure 4a. LVDS Differential Measurement
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