DS125BR820 Datasheet, PDF (10/62 Pages) Texas Instruments – Low-Power 12.5 Gbps 8-Channel Linear Repeater

DS125BR820
SNLS491B – JULY 2014 – REVISED FEBRUARY 2015
www.ti.com
Electrical Characteristics (continued)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
RJ_ADD
Additive Random Jitter
Evaluation Module (EVM) Only,
FR4,
VID = 800 mVp-p, EQ = Level 1
PRBS15, 12 Gbps
VOD = Level 6
All other channels active ⁽⁴⁾
0.36
ps rms
EQUALIZATION
DJE1
Residual deterministic jitter at 6 Gbps
5” Differential Stripline, 5mil trace
width, FR4,
VID = 800 mVp-p,
PRBS15, EQ = Level 2,
VOD = Level 6
0.06
UIp-p
DJE2
Residual deterministic jitter at 12
Gbps
5” Differential Stripline, 5mil trace
width, FR4,
VID = 800 mVp-p,
PRBS15, EQ = Level 2,
VOD = Level 6
0.12
UIp-p
(4) Additive random jitter is given in RMS value by the following equation: RJ_ADD = √[(Output Jitter)² - (Input Jitter)²]. Typical input jitter for
these measurements is 150 fs rms.
6.6 Electrical Characteristics — Serial Bus Interface DC Specifications
Over recommended operating supply and temperature ranges unless other specified.
PARAMETER
TEST CONDITIONS
MIN
V_IL
V_IH
V_OL
V_DD
I_IH-Pin
I_IL-Pin
C_I
R_TERM
Data, Clock Input Low Voltage
Data, Clock Input High Voltage
Output Low Voltage
Nominal Bus Voltage
Input Leakage Per Device Pin
Input Leakage Per Device Pin
Capacitance for SDA and SCL
External Termination Resistance
pull to V_DD = 2.5 V ± 5% OR 3.3 V
± 10%
SDA or SCL, I_OL = 1.25 mA
See ^{(1) (2)}
Pullup V_DD = 3.3 V^(1)(2)(3)
Pullup V_DD = 2.5 V^(1)(2)(3)
2.1
0
2.375
+20
-160
(1) Recommended value.
(2) Recommended maximum capacitance load per bus segment is 400 pF.
(3) Maximum termination voltage should be identical to the device supply voltage.
TYP
<5
2000
1000
MAX
0.8
3.6
0.36
3.6
+150
-40
UNIT
V
V
V
V
µA
µA
pF
Ω
Ω
6.7 Serial Bus Interface Timing Specifications
F_SMB
t_FALL
t_RISE
t_F
t_R
t_POR
PARAMETER
Bus Operating Frequency
SCL or SDA Fall Time
SCL or SDA Rise Time
Clock/Data Fall Time
Clock/Data Rise Time
Time in which a device must be
operational after power-on reset
TEST CONDITIONS
ENSMB = VDD (Slave Mode)
ENSMB = FLOAT (Master Mode)
Read operation
RPU = 4.7 kΩ, Cb < 50 pF
Read operation
RPU = 4.7 kΩ, Cb < 50 pF
See ⁽¹⁾
See ⁽¹⁾
See ⁽¹⁾
MIN
TYP
MAX UNIT
400 kHz
280
400
520 kHz
60
ns
140
ns
300
ns
1000
ns
500 ms
(1) Compliant to SMBus 2.0 physical layer specification. See System Management Bus (SMBus) Specification Version 2.0, section 3.1.1
SMBus common AC specifications for details.
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