HDMI2C1-6C1 Datasheet, PDF (15/23 Pages) STMicroelectronics – ESD protection and signal booster for HDMI source control stage interface

HDMI2C1-6C1
Electrical characteristics
Symbol
Table 7. HPD, HEAC, and utility line electrical characteristics⁽¹⁾
Parameter
Test conditions
Value
Min. Typ.
Max.
I_{PULL_DOWN} Pull-down current in HPD block
V_{TH_HPD} HPD input threshold
CIN_HPD
CIN_UTILITY
Input capacitance
V_{DD_5V} = 0 V, V_BIAS = 0 V
f = 1 MHz, V_OSC = 30 mV
f_{CUT_HEAC} Cut-off frequency of HEAC bus
1. Tamb = 25°C, V_{DD_5V} = 5 V, unless otherwise specified.
15
25
1.0
1.7
21
25
200
Unit
µA
V
pF
MHz
Table 8. DDC bus (SDA and SCL lines) electrical characteristics⁽¹⁾
Symbol
Parameter
Test conditions
Value
Unit
Min. Typ. Max.
V_{Tup_BUS} Upward input voltage threshold on bus side
V_{Tdown_BUS} Downward input voltage threshold on bus side
1.5
V_{HYST_BUS} Input hysteresis on bus side
1.0
V_{OL_BUS} Output low level
Current sunk by SDA and SCL
pin is 3 mA
T_{RISE_BUS} Output rise-time (30% to 70%)
C_BUS = 750 pF⁽²⁾
R_UP = 2 KΩ //47 KΩ + 10%⁽³⁾
T_{FALL_BUS} Output fall-time (30% to 70%)
V_{Tup_IC} Upward input voltage threshold on IC side
55
V_{Tdown_IC} Downward input voltage thresholds IC side
35
V_{OL_IC} Output low level on IC side
Current sunk by SDA_IC or
SCL_IC pins is 500 µA
3.5
V
V
1.3
V
0.35
V
500
ns
50
ns
60 65 %V_{DD_IC}
40 45 %V_{DD_IC}
20 %V_{DD_IC}
C_{IN_DDC} Input capacitance on DDC link
V_{DD_5V} = 0 V
V_{DD_IC} = 0 V
V_{DD_CEC} = 0 V
V_BIAS = 0 V, f = 1 MHz
V_OSC = 30 mV
27 32⁽⁴⁾
pF
1. T_amb = 25 °C, V_{DD_5V} = 5 V, V_{DD_IC} = 1.8 V, unless otherwise specified
2. Maximum load capacitance allowed on I2C entire link (cable + connector) is 750 pF in HDMI 1.4 specification.
3. Two pull-up resistors in parallel (sink 47 kΩ + source 2 kΩ).
4. Maximum capacitance allowed at connector output is 50 pF in HDMI 1.4 specification
DocID025281 Rev 1
15/23
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