UPB1009K データシートの表示（PDF） - California Eastern Laboratories.

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UPB1009K

NEC’s LOW POWER GPS RF RECEIVER BIPOLAR ANALOG + INTEGRATED CIRCUIT

California Eastern Laboratories. 

Pin

Pin Name

No.

19 2ndIFin

Function and Application

Input pin of ADC buffer amplifier.

20 DCOFFout

Output pin of DC trimming OP amplifier.

21 DCOFFin

DC trimming pulse input pin.

Connect this pin to pin 20 via a capacitor to

convert an input pulse signal into DC.

22 GNDana

23 GNDbuf

Ground pin for OP amplifier and ADC power

supply.

24 VDDana

Power supply pin for OP amplifier and ADC

comparator.

25 VDDbuf

Power supply pin for output driver amplifier of

ADC. Connect this pin to the ground pin of the

A/D converter via a bypass capacitor to

reduce the high-frequency impedance.

26 GNDsub

27 D0

28 D1

29 D2

30 D3

31 SCKin

32 AGCin

33 AGCout

Ground pin of CMOS substrate.

Digital signal output pins.

LSB = D0, MSB = D3

Sampling clock signal input pin.

AGC control pulse signal input pin.

AGC control signal output pin.

UPB1009K

Internal Equivalent Circuit

8

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