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SI4770

HIGH-PERFORMANCE CONSUMER ELECTRONICS BROADCAST RADIO RECEIVER AND HD RADIO TUNER

Silicon Laboratories 

Si4770/77-A20

Table 2. DC Characteristics (Continued)

(TAMB = –40 to 85 °C, VA = 4.5 to 5.5 V, VD = 2.7 to 3.6 V, VIO1 = 1.7 to 3.6 V, VIO2 = 1.2 to 3.6 V)

Parameter

Symbol Test Condition

Min

Typ

Max

Interface Supplies

VIO1 Supply Current

VIO2 Supply Current

VIO1 Supply Power Down

Current*

IVIO1

IVIO2

IPD

0.1

0.5

0.82

0.1

0.2

0.5

150

250

420

VIO2 Supply Power Down

IPD

Current*

5

20

150

Inputs Pins SCL, SDA, RSTB, A0, A1

High Level Input Voltage

Low Level Input Voltage

High Level Input Current

Low Level Input Current

VIH

0.7 x VIO1

—

VIL

—

—

IIH

VIN = VI01 = 3.6 V

–10

—

IIL

VIN = 0 = V,

–10

—

VI01 = 3.6 V

—

0.3xVIO1

10

10

Input Pins DCLK, DFS

High Level Input Voltage

Low Level Input Voltage

High Level Input Current

Low Level Input Current

VIH

0.7 x VIO2

—

—

VIL

—

—

0.3 x VIO2

IIH

VIN = VI02 = 3.6 V

–10

—

10

IIL

VIN = 0 V,

–10

—

10

VI02 = 3.6 V

Input Pins GPIO1, GPIO2

High Level Input Voltage

GPIO1 and GPIO2

VIH are internally regu- 2.52

—

—

lated at 3.6 V

Low Level Input Voltage

High Level Input Current

Low Level Input Current

VIL

—

—

1.08

IIH

VIN = 3.6 V

–10

—

10

IIL

VIN = 0 V

–10

—

10

Output Pins INTB

Output is common

High Level Output Voltage

VOH

drain output with

internal 10 k pull-

0.8xVIO1

—

—

up to VIO1

Low Level Output Voltage

VOL

IOUT = –500 μA

—

—

0.2xVIO1

*Note: See "7. I2C Control Bus" on page 44.

Unit

mA

mA

µA

µA

V

V

µA

µA

V

V

µA

µA

V

V

μA

μA

V

V

Rev. 0.9

5

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