STA8090EXGA datasheet(33/42 Pages) STMICROELECTRONICS

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DS11733 Rev 3

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STA8090EXGA

Electrical characteristics

Table 23 lists the DC characteristics for the 1.0 V IO digital buffers input buffers:

STBYn (H9), STDBY_OUT (J10), WAKEUP0 (F11), WAKEUP1 (F10), PMU_CFG (H10)

and RSTn (G9).

4.8

AC characteristics

4.8.1

RF electrical specifications

Table 23. 1.0 V I/O buffers DC characteristics

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

VIL

Logical input low level voltage VOB = 1.0 V

-0.3

—

0.35 * VOB

VIH

Logical input high level voltage VOB = 1.0 V

0.65 * VOB

—VOB + 0.3

VOL

Low level output voltage

VOB =1.0 V

—

0.2

VOH

High level output voltage

VOB =1.0 V

VOB - 0.2

—

Table 24. RFCHAIN – GALGPS filter and VGA

Symbol

Parameter

Test conditions

Min

Typ

Max

Unit

S11(1)

1. Not tested in production.

Input return loss

GPS band

—

-8

—

fIF

IF frequency

PLL in default condition with

26Mhz as reference

—4.045

—

MHz

Noise figure

NF overall chain with AGC

set at 0 dB

—2(1)

—dB

Conversion gain from

RF input to ADC input

VGA at max gain

—

119

—

VGA at min gain

—

IP1dB

RF-IF-VGA input

compression point

VGA min

—

-70

—

dBm

IRR

Image rejection ratio

—

BWGPS

-3dB IF bandwidth

GPS mode

—

2.4

—

MHz

BWGAL

Galileo mode

—

4.8

—

MHz

ATT

Alias frequency

rejection

F = 60 MHz

(fs = 65.474 MHz)

—30(1)

—dB

TgGPS

IF filter group delay

variation

GPS mode

—

200(1)

TgGAL

Galileo mode

—

30(1)

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