UPC8002GR Просмотр технического описания (PDF) - NEC => Renesas Technology

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UPC8002GR

SECOND MIXER + IF AMPLIFIER FOR DIGITAL CORDLESS TELEPHONES

NEC => Renesas Technology 

Application Circuit Example 3 (Using 1 BPF)

µPC8002

VCC

VCC

1µ F

1000 pF

VCC

1µ F

1000 pF

470 pF

470 pF

470 pF

1 PD

2 MIX OUT

3 VCC (IF)

4 VCC (MIX)

5 LO IN

6 GND (IF)

7 GND (MIX)

8 MIX IN1

9 MIX IN2

10 RSSI OUT

BYPASS1 20

IF1 IN 19

1000 pF

BYPASS2 18

1000 pF

IF1 OUT 17

BYPASS4 16

390 Ω

0.01 µF

IF2 IN 15

1000 pF

BYPASS3 14

0.01 µF

GND (IF OUT) 13

VCC

VCC (IF OUT) 12

1000 pF

IF2 OUT 11

1 µF

Cautions 1.

2.

With this application circuit, good interfering wave characteristics are obtained with a single

BPF. However, there is a drop in sensitivity.

Ensure that the pin voltage does not exceed the power supply voltage.

Remark The VCC pass capacitors (1 µF, 1000 pF) should be located close to the respective VCC pins.

Chip laminated ceramic capacitors (MURATA GRM36 or equivalent) should be used.

4

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