M21012 Datasheet, PDF (35/73 Pages) M/A-COM Technology Solutions, Inc. – Quad Multi-Rate CDR

Product Specifications
Table 2-5. Universal High-Speed (UHS) Input Electrical Specifications
Symbol
Parameter
Notes Minimum Typical
Maximum
DR_IN Input signal data-rate
3
42
—
3200
V_ID
Input differential voltage (P-P)
4,5
100
—
2000
V_ICM Input common-mode voltage
—
Vss
—
AVdd_I/O
V_IH
Maximum input high voltage
—
—
—
AVdd_I/O + 400
V_IL
Minimum input low voltage
—
Vss - 400
—
—
—
Maximum voltage difference between common-
—
—
—
600
mode voltage and VddT
R_IN
Input termination to VddT
7
45
50
65
S₁₁
Input return loss (40 MHz to 2.5 GHz)
—
—
–15.0
—
S₁₁
Input return loss (2.5 GHz to 5 GHz)
—
—
–5.0
—
—
Maximum DC input current
6
—
—
25
NOTES:
1. Specified at recommended operating conditions – see Table 2-2.
2. Designed for seamless interface to PCML.
3. Designed for SONET and 8b/10b data.
4. Example 1200 mV_pp differential = 600 mV_pp for each single-ended terminal.
5. Minimum input level defined as error free operation at 10^-12 BER.
6. Computed as the current through 50Ω from the voltage difference between the input voltage common mode and VddT.
7. See Figure 2-1 for input termination circuit.
Units
Mbps
mV
mV
mV
mV
mV
Ω
dB
dB
mA
Figure 2-1. Data Input Internal Circuitry
Vdd_Core
DinP
VddT
DinN
210xx-DSH-001-D
R >> 50Ω
5 pF
50Ω
50Ω
5 pF
R >> 50Ω
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Data
Input
Buffer
28