SC905A データシートの表示（PDF） - Semtech Corporation

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SC905A

CDMA Cellular Phone Power Management IC

Semtech Corporation 

SC905A

POWER MANAGEMENT

Electrical Characteristics (Cont.)

Parameter

Symbol

Condition

Min

Typ

Max

Units

I2C Interface(5)

Interface complies with slave mode I2C interface as described by Philips I2C specification version 2.1 dated January, 2000.

VIL

Digital Input Voltage

VIH

SDA Output Low Level

Digital Input Current

IDG

Hysteresis of Schmitt

Trigger Inputs

VHYS

Maximum Glitch

Pulse Rejection

tSP

I/O Pin Capacitance

CIN

I2C Timing(5)

IDIN (SDA) ≤ 3mA

0.4

V

1.25

V

0.4

V

-0.2

0.2

μA

0.1

V

50

ns

10

pF

Clock Frequency

SCL

400

440

kHz

SCL Low Period

tLOW

1.3

μs

SCL High Period

tHIGH

0.6

μs

Data Hold Time

tHD_DAT

0

μs

Data Setup Time

tSU_DAT

100

ns

Setup Time for Repeated

START Condition

tSU_STA

0.6

μs

Hold Time for Repeated

START Condition

tHD_STA

0.6

μs

Setup Time for

STOP Condition

tSU_STO

0.6

μs

Bus-Free Time Between

STOP and START

tBUF

1.3

μs

RESET Timeout Delay

tRD

75

100

125

ms

Power-up Delay Between

PAD, ANA, TXCO

tDELAY

Delay Between

Each Output Activating

100

μs

Maximum Glitch

Pulse Rejection

tSP

50

ns

Interface Start-up Time

tEN

Bus Start-up Time After EN Pin

is Pulled High

350

μs

Notes:

(1) Applies to pin names, ON, HFPWR, CHPWR, PGOOD, VCSEL, VPSEL, EN_MOT, EN_TCXO.

(2) Applies to pin names, PWRON, RESB.

(3) For V settings see Table A.

OUT

(4) For VOUT settings see Table B.

(5) Guaranteed by design.

© 2006 Semtech Corp.

6

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