CXA3555N 데이터 시트보기 (PDF) - Sony Semiconductor

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CXA3555N

All Band Tuner IC with On-chip PLL

Sony Semiconductor 

Pin

No.

Symbol

Pin voltage

[V]

7

5

5 IFIN1

6

Equivalent circuit

1.6k

2.0

6 IFIN2

CXA3555N

Description

IF inputs.

These pins must be connected

to the mixer outputs via

coupling capacitance.

7 VCC

—

8 MIXOUT1

—

9 MIXOUT2

8

9

Power supply.

Mixer outputs.

These pins output the signal in

open collector format, and they

must be connected to the

power supply via a load.

10 GND1

—

11 VHFIN

2.4 during

VHF reception

0.0 during

UHF reception

7

11

3k

12 BYP

VCC

(when open)

7

14 UHFIN1

14

0.0 during

VHF reception

15

2.3 during

UHF reception

15 UHFIN2

Analog circuit GND.

57k

15p 150k

3k

12

VHF input.

The input format is unbalanced

input.

VHF input GND and gain

switching.

GND: low gain

Open: high gain

(However, when control byte

GC is "0")

3k 3k

UHF inputs.

Input a balanced signal to

Pins 14 and 15, or ground

either of Pin 14 or 15 with a

capacitor and input the signal

to the other pin.

–5–

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