S1M8662A Просмотр технического описания (PDF) - Samsung

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производитель

S1M8662A

CDMA/PCS/GPS Triple Mode IF/ baseband IC

Samsung 

S1M8662A (Preliminary)

RX IF/BBA WITH GPS

AC Characteristics (Continued)

Characteristic

Single-tone

jammer desense

Residual

Sideband

Test Conditions

Overall gain reduction due to one jammer.

The in-band signal at -97dBm (control the

AGC control voltage to 0.5*F/S)and the

jammer signal at 900kHz and -57dBm are

simultaneously input.

RSB = 20log

1 + k 2 + 2k cosθ

1 + k 2 − 2k cosθ

Symbol Min Typ Max Unit

Jdsen

-

-

1.0

dB

RSB

22

dB

k : Linear Gain Mismatch

θ : Phase Mismatch in Deg.

Offset gain slope Amount of code change of the voltage ADC

GOFS

-

250

- %FS/V

output at the I/Q offset control

Offset adjust

-

input impedance

Zoff 100 -

-

kΩ

Out-band

≥ 900kHz

ATC9 46

-

-

dB

attenuation

≥ 1.2MHz

ATC12 48

-

-

dB

Gain flatness

Amount of gain change along I and Q paths

Gft

-1

between 1kHz to 615kHz

1

dB

IF VCO pertormance

VCO and

buffered output

Frequency range

VCO external time constant and PLL value

Fvco

-

170 500 MHz

VCO phase noise Tank LC's Q value should be above 20.

Measure @100kHz away from the mid-

frequency.

Pvco

-

-

104 dBc/Hz

RXVCO_OUT

Select a VCO buffer output value reduced by Ovco -15

-

output power

-2dB. Connect output load to 50Ω.

-

dBm

8

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