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SI4770

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

Silicon Laboratories 

Si4770/77-A20

Table 6. I2C Control Interface Characteristics

(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

Pins SCL, SDA

SCL Frequency

SCL Low Time

SCL High Time

SCL Input to SDA  Setup

(START)

fSCL

tLOW

tHIGH

tSU:STA

0

—

1.3

—

0.6

—

0.6

—

SCL Input from SDA  Hold

(START)

tHD:STA

0.6

—

SDA Input to SCL  Setup

SDA Input from SCL Hold

SDA Output Delay

tSU:DAT

tHD:DAT

tPD:DAT

100

—

0

—

300

—

SCL Input to SDA Setup

(STOP)

STOP to START Time

SDA Output Fall Time

tSU:STO

tBUF

tf:OUT

0.6

—

1.3

—

—

20 + 0.11--C--p---B-F--

Max

400

—

—

—

—

—

900

900

—

—

250

Unit

kHz

µs

µs

µs

µs

ns

ns

ns

µs

µs

ns

SDA Input, SCL Rise/Fall

Time

tf:IN, tr:IN

Capacitive Loading

CB

Pulse Width Rejected by

tSP

Input Filter

20 + 0.11--C--p---B-F--

—

—

—

300

ns

—

50

pF

—

50

ns

10

Rev. 0.9

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