UPB1008K データシートの表示（PDF） - NEC => Renesas Technology

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UPB1008K

REFERENCE FREQUENCY 27.456 MHz, 2ndIF FREQUENCY 132 kHz RF/IF FREQUENCY DOWN-CONVERTER + PLL FREQUENCY SYNTHESIZER IC FOR GPS RECEIVER

NEC => Renesas Technology 

µPB1008K

Pin

Pin Name

No.

Function and Application

14

2ndIFout-Q Differential output pins of

quadrature demodulator Q

output. Adding a lowpass shunt

capacitor between these pins

will define the IF bandwidth.

15

2ndIFout-Qb

Internal Equivalent Circuit

28

2 kΩ 2 kΩ

2 kΩ

2 kΩ

ESD

ESD

15 (26)

14 (27)

idc = 86µ

idc = 86 µ

ESD

ESD

16

DCoffsetQ DC offset compensation pin for

C arm. A low pass capacitor

shunt to pin 17 is required.

32

28

4 kΩ 4 kΩ

ESD

ESD

17

DCoffsetQb DC offset compensation pin for

Q-bar arm. A low pass capacitor

shunt to pin 16 is required.

idc = 84 µ

150 kΩ

20 kΩ 9 pF

150 kΩ

idc = 84µ

ESD

17 (24)

16 (25)

ESD

18

GNDbb

Ground pin of CMOS output

driver.

19

Qmag

Digitizd Q signal. Magnitude bit

of 2-bit ADC output.

20

Qsign

Digitizd Q signal. Sign bit of 2-

bit ADC output.

21

Isign

Digitizd I signal. Magnitude bit

of 2-bit ADC output.

22

Imag

Digitizd I signal. Magnitude bit

of 2-bit ADC output.

23

VCCbb

Supply voltage pin of CMOS

output driver.

32

23

21.5 Ω

5 kΩ

21.5 Ω

18

ESD

19 (20, 21, 22)

ESD

6

Data Sheet PU10282EJ01V0DS

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