DS90UA101-Q1 Datasheet, PDF (10/42 Pages) Texas Instruments – DS90UA101-Q1 Multi-Channel Digital Audio Link

DS90UA101-Q1
SNLS441A – JULY 2013 – REVISED SEPTEMBER 2013
ELECTRICAL CHARACTERISTICS:
Serializer Switching Characteristics
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Over recommended operating supply and temperature ranges unless otherwise specified.^(1)(2)(3)
Symbol
Parameter
Conditions
Min
Typ
t_LHT
CML Low-to-High Transition R_L = 100Ω (Figure 6)
Time
150
t_HLT
CML High-to-Low Transition R_L = 100Ω (Figure 6)
Time
150
t_DIS
Data Input Setup to SCK
Serializer Data Inputs
2
t_DIH
Data Input Hold from SCK ^{(Figure 10)}
2
t_PLD
Serializer PLL Lock Time
R_L = 100Ω ^{(4) (5)}, (Figure 11)
1
t_SD
Serializer Delay ⁽⁵⁾
R_T = 100Ω
Register 0x03h b[0] (TRFB = 1)
11.75T
13T
(Figure 12)
t_JIND
Serializer Output
Serializer output intrinsic deterministic
Deterministic Jitter
jitter . Measured (cycle-cycle) with
PRBS-7 test pattern
(3) (6)
0.13
t_JINR
Serializer Output Random Serializer output intrinsic random jitter
Jitter
(cycle-cycle). Alternating-1,0 pattern.
(3) (6)
0.04
t_JINT
Peak-to-peak Serializer
Serializer output peak-to-peak jitter
Output Jitter
includes deterministic jitter, random
jitter, and jitter transfer from Serializer
input. Measured (cycle-cycle) with
PRBS-7 test pattern.
(3) (6)
0.396
λ_STXBW
δ_STX
δ_STXf
Serializer Jitter Transfer
Function -3 dB Bandwidth⁽⁷⁾
Serializer Jitter Transfer
Function (Peaking) ⁽⁷⁾
Serializer Jitter Transfer
Function (Peaking
Frequency) ⁽⁷⁾
SCK = 50MHz
SCK = 50MHz
SCK = 50MHz
2.2
1.16
600
Max
330
330
2
15T
Units
ps
ps
ns
ns
ms
ns
UI
UI
UI
MHz
dB
kHz
(1) The Electrical Characteristics tables list verified 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
verified.
(2) 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, ΔV_OD, V_TH and V_TL which are differential voltages.
(3) Typical values represent most likely parametric norms at 1.8V or 3.3V, T_A = +25°C, and at the Recommended Operation Conditions at
the time of product characterization and are not verified.
(4) t_PLD and t_DDLT is the time required by the Serializer and Deserializer to obtain lock when exiting power-down state with an active SCK.
(5) Specification is verified by design.
(6) UI – Unit Interval is equivalent to one ideal serialized data bit width. The UI scales with SCK frequency.
(7) Specification is by characterization and is not tested in production.
10
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