DS90UB921-Q1 Datasheet, PDF (9/57 Pages) Texas Instruments – 5 - 96 MHz 24-bit Color FPD-Link III Serializer with Bidirectional Control Channel

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DS90UB921-Q1
SNLS488 – MARCH 2016
6.7 AC Electrical Characteristics
over operating free-air temperature range (unless otherwise noted)^(1)(2)(3)
PARAMETER
TEST CONDITIONS
PIN/FREQUENCY
GPIO BIT RATE
B_RF
Forward channel bit
rate
See ⁽⁴⁾
ƒ = 5 – 96 MHz
GPIO[3:0]
STP cable - HFMODE
B_RB
Back channel bit rate ^{STP cable - LFMODE}
Coax cable - HFMODE,
IFMODE, or LFMODE
GPIO[3:0]
MIN
TYP
MAX UNIT
0.25 × ƒ
60
40
Mbps
kbps
kbps
(1) The Electrical Characteristics tables list ensured 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 ensured.
(2) Typical values represent most likely parametric norms at nominal conditions at the time of product characterization and are not ensured.
(3) Current into device pins is defined as positive. Current out of a device pin is defined as negative. Voltages are referenced to ground
except V_OD and ΔV_OD, which are differential voltages.
(4) Specification is ensured by design and is not tested in production.
6.8 PCLK Timing Requirements
over operating free-air temperature range (unless otherwise noted)^(1)(2)(3)
t_TCP
t_CIH
t_CIL
t_CLKT
t_IJIT
PCLK period with STP cable, see⁽⁴⁾
ƒ = 5 to 96 MHz
PCLK period with Coax cable, see⁽⁴⁾
ƒ = 15 to 96 MHz
PCLK input high time; pin/frequency: PCLK
PCLK input low time; pin/frequency: PCLK
PCLK input transition time⁽⁴⁾, see Figure 4; ƒ = 5 MHz
PCLK input transition time⁽⁴⁾, see Figure 4; ƒ = 96 MHz
PCLK input jitter, bit error rate ≤ 10^–10
ƒ / 40 < jitter freq < ƒ / 20
ƒ = 5 to 78 MHz
(4) (5)
Paired with DS90UB926Q-Q1
PCLK input jitter, bit error rate ≤ 10^–10
ƒ / 40 < jitter freq < ƒ / 20
f = 5 - 85MHz
(4) (5)
Paired with DS90UB928Q-Q1
PCLK input jitter, bit error rate ≤ 10^–10
ƒ / 40 < jitter freq < ƒ / 20
f = 25 - 96MHz
(4) (5)
Paired with DS90UB940-Q1, or DS90UB948-Q1
MIN
10.41
10.41
0.4*T
0.4*T
4
0.5
NOM
T
T
0.5*T
0.5*T
MAX
200
UNIT
ns
66.7
ns
0.6*T
ns
0.6*T
ns
ns
ns
0.35
UI
0.35
UI
0.35
UI
(1) The Electrical Characteristics tables list ensured 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 ensured.
(2) Typical values represent most likely parametric norms at nominal conditions at the time of product characterization and are not ensured.
(3) Current into device pins is defined as positive. Current out of a device pin is defined as negative. Voltages are referenced to ground
except V_OD and ΔV_OD, which are differential voltages.
(4) Specification is ensured by characterization and is not tested in production.
(5) UI – Unit Interval is equivalent to one serialized data bit width (1UI = 1 / 35 × PCLK). The UI scales with PCLK frequency.
Copyright © 2016, Texas Instruments Incorporated
Product Folder Links: DS90UB921-Q1
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