Table 4. CEC electrical characteristics (Tamb = 25 °C, VDD_CEC = 3.3 V, VDD_CEC_IC = 1.8 V, unless otherwise

specified)

Symbol

Parameter

Test conditions

Value

Unit

Min.

Typ.

Max.

VTup_CEC

Upward input voltage threshold on bus side

2.0

V

VTdown_CEC Downward input voltage threshold on bus side

0.8

V

VHYST_CEC Input hysteresis on bus side

0.4

V

TRISE_CEC

Output rise-time

(10% to 90%)

RUP_CEC = 14.1 kΩ(1),

CCEC_CABLE = 7.9 nF (1)

250

µs

TFALL_CEC

Output fall-time

(90% to 10%)

50

µs

IOFF_CEC

Leakage current in

powered-off state

VDD_5V = 0 V, VDD_IC = 0

V, VDD_CEC = 3.3

1.8

µA

VIL_CEC_IC Input low level on IC side

0.5

V

VIH_CEC_IC

Input high level on

IC side

VDD_CEC_IC = 1.8 V

1.5

V

VDD_CEC_IC = 3.3 V

1.9

V

RON_CEC

On resistance

across CEC and

CEC_IC pins

CEC pin to 0 V

100

Ω

CIN_CEC

Input capacitance

on CEC link

VDD_5V = 0 V, VDD_CEC =

0 V,VDD_IC = 0 V, VBIAS =

0 V, f = 1 MHz, VOSC = 30

mV

25

30(2)

pF

1. Test conditions are compliant with the worst case CEC specification:

•

Correspond to two 27 kΩ +5% pull-up resistances in parallel (compliant with HDMI CTS)

•

Max capacitance corresponding to nine equipments chained on the CEC bus

2. Maximum capacitance allowed at connector output is 200 pF in the HDMI 1.4 specification.

Table 5. HDMI 5V_OUT current limiter electrical characteristics (Tamb = 25 °C, VDD_5V = 5 V, unless

otherwise specified)

Symbol

Parameter

Test conditions

Value

Unit

Min.

Typ.

Max.

VDROP

Drop-out voltage

I5V_OUT = 55mA

20

50

95(1)

mV

I5V_OUT Output current

V5V_OUT = 0V

55

115(2)

mA

VL_FAULT Low level on FAULT pin

RPU_FAULT = 10 kΩ

0.3

V

1. HDMI 1.4 specification requires a maximum of 100mV voltage-drop.

2. Maximum allowed output current is 500 mA when a sink is powered off in the HDMI 1.4 specification.

HDMI2C1-6C1

Electrical characteristics

DS9943 - Rev 4

page 13/22