STA5620 datasheet(13/29 Pages) STMICROELECTRONICS

13 / 29 page

STA5620

Electrical specifications

13/29

ΔGC

VGA range

Set VAGC_CTRL < 0.3V

for maximum gain

VAGC_CTRL AGC Control Voltage Range

Vcc

GSENS

VGA sensitivity

dB/V

NF_RF-IF

RF-IF-VGA noise figure

f = 4.092MHz

VGA at max gain

4.5

P_1dB

RF-IF-VGA 1dB input

compression point

VGA at min gain

-57

dBm

IRR

Mixer image rejection ratio

f = 2 to 6 MHz

IFF3dB

IF filter cut-off frequency

MHz

IFFATT

IF filter out of band attenuation

f = 12.276MHz

VSWRIN

RFA Input voltage stat. wave ratio

ZS=50Ω

2:1

Crystal oscillator – Integer-N synthesizer – VCO

FXTAL

XTAL frequency

MHz

tSTART-UP

XTAL oscillator start-up time

msec

PXTAL_IN

Reference input signal sensitivity

XTAL_IN pin DC

blocked.

No crystal mounted.

XTAL_OUT load

<10pF.

-20

dBm

RDIV

Reference divider range

FLO

LO operating frequency

1571.328

MHz

NDIV

VCO divider range

4095

(1)

VCO gain

f = 1571.328 MHz

300

MHz/V

PNVCO

(1)

VCO phase noise

100 kHz offset

-80

dBc/Hz

PNPLL

PLL phase noise

1 kHz offset

-65

dBc/Hz

ICP

(1)

Charge pump current

200

ΔICP(1)

Charge pump current steps

ADC – Output signals – GPS clock

fADC

ADC sampling frequency

16.368

MHz

τ MAG

MAG duty cycle

Internally regulated

τ SIGN

SIGN duty cycle

fCLOCK

Output clock frequency

16.368

MHz

τ CLOCK

Output clock duty cycle

Table 5.

Electrical characteristics (continued)

(VCC = 2.7V, TJ = 25°C unless otherwise noted)

Symbol

Parameter

Test conditions

Min

Typ

Max

Unit

STA5620 数据表(PDF) 13 Page - STMicroelectronics

STA5620 数据表(HTML) 13 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29

数据表下载