CXD2951GA-4 データシートの表示（PDF） - Sony Semiconductor

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CXD2951GA-4

Single Chip GPS LSI

Sony Semiconductor 

CXD2951GA-4

Radio Characteristics

DC Characteristics

Item

Supply current 1

Supply current 2

Symbol

IDD

IPS

Conditions

Active mode∗1

Power save mode∗1

∗1 Applicable pins 31, 33, 37, 41, 42, 56, 58

(VDD = 1.8V, Ta = 25°C)

Min. Typ. Max. Unit

13.5

17

20.5 mA

—

0.1

1.5

µA

AC Characteristics

Item

Symbol

Conditions

Min.

Total gain

G

Before the A/D converter

90

Image rejection ratio IMRR Image frequency = 1571.328MHz

—

2nd IF filter 2.5MHz Fc

@2.5MHz Normalized at 1.023MHz –6

2nd IF filter 4MHz Fa

@4MHz Normalized at 1.023MHz

—

∗ Including the 50Ω matching circuit

(VDD = 1.8V, Ta = 25°C)

Typ. Max. Unit

100

—

dB

–35 –15 dB

0

4

dB

–25 –15 dB

Design Measurement Results

(VDD = 1.8V, Ta = 25°C)

Item

Symbol

Conditions

Min. Typ. Max. Unit

Total NF

NF

Before the 2nd IF mixer

—

8

—

dB

IIP3

IIP3

Before the A/D converter

—

–90

— dBm

P-1dB input

P1dB Before the A/D converter

—

–100

—

dBm

S11

S11

—

–15

—

dB

Lock up time

LUT

Measure the interval between reset

input and IF output.

—

2.5

—

ms

C/N 100K

C/N

TCXO = 18.414MHz

—

–70

— dBc/Hz

Local leak

Leak Measure at RF input.

—

–65

— dBm

∗ Including the 50Ω matching circuit

– 21 –

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