DS64BR401 Datasheet, PDF (9/30 Pages) National Semiconductor (TI) – Quad Bi-Directional Transceiver with Equalization and De-Emphasis

Symbol
Parameter
Conditions
Min
Typ
Max
Units
DE-EMPHASIS
DJ5
Residual Deterministic Jitter Tx Launch amplitude = 0.8 to
at 6.4 Gbps
1.2 Vp–p, 10” 4–mil FR4 trace,
EQx[1:0] = OFF, DEMx[1:0] = −6 dB,
VOD = 1.0 Vp-p, K28.5, RATE = 1(Note 2)
0.09
0.20
UI_P-P
DJ6
Residual Deterministic Jitter Tx Launch amplitude = 0.8 to
at 3.2 Gbps
1.2 Vp–p, 20” 4–mil FR4 trace,
EQx[1:0] = OFF, DEMx[1:0] = −6 dB,
0.07
0.18
UI_P-P
VOD = 1.0 Vp-p, K28.5, RATE = 0(Note 2)
Note 1: “Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur, including inoperability and degradation of device reliability
and/or performance. Functional operation of the device and/or non-degradation at the Absolute Maximum Ratings or other conditions beyond those indicated in
the Recommended Operating Conditions is not implied. The Recommended Operating Conditions indicate conditions at which the device is functional and the
device should not be operated beyond such conditions. Absolute Maximum Numbers are guaranteed for a junction temperature range of -40°C to +125°C. Models
are validated to Maximum Operating Voltages only.
Note 2: Typical values represent most likely parametric norms at V_DD = 2.5V, T_A = 25°C., and at the Recommended Operation Conditions at the time of product
characterization and are not guaranteed.
Note 3: The Electrical Characteristics tables list guaranteed specifications under the listed Recommended Operating Conditions except as otherwise modified
or specified by the Electrical Characteristics Conditions and/or Notes. Typical specifications are estimations only and are not guaranteed.
Note 4: Allowed supply noise (mV_P-P sine wave) under typical conditions.
Note 5: Measured with clock-like {11111 00000} pattern.
Note 6: Measured at package pins of receiver. The 130 mVp-p is a typical threshold level and does not include hysteresis, thus less than 40 mVp-p is IDLE,
greater than 175 mVp-p is ACTIVE. SD_TH pin connected with resistor to GND overrides this default setting.
Note 7: Common-mode voltage (VCM) is expressed mathematically as the average of the two signal voltages with respect to local ground.
VCM = (A + B) / 2, A = OUT+, B = OUT-.
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