LV2700V 查看數據表（PDF） - SANYO -> Panasonic

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产品描述 (功能)

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LV2700V

Spread Spectrum Communications IC

SANYO -> Panasonic 

LV2700V

Continued from preceding page.

Pin No.

11

Pin

CTRL

Pin voltage(V)

Pin function

Turns the optimal PN code synchronization

control on or off. Control is turned on by a high

level input.

12

PNT1

Tap selection for the PN code (M sequence)

13

PNT2

Tap selection for the PN code (M sequence).

These pins select one of three code types.

PNT1

0

0

1

1

0 = Low

1 = High

PNT2

0

1

0

1

PN code

CODE1

CODE2

CODE3

14

PNL

15

TX/RX

16

VDD

17 TX DATAIN

PN code length selection

High: 63 chips

Low: 31 chips

Send/receive mode selection.

High: Transmission

Low: Reception

CMOS block power supply

Transmission data input (CMOS levels). Do not

apply analog signals to this pin.

18 TX DATAOUT

19

DGND

1.7

0.7

1Vp-p

20

XIN

1/2VCC

Transmission data output. The output signal is

band limited to 300 kHz and voltage limited to 1

Vp-p.

CMOS block ground

Input for the 9.8304 MHz reference oscillator

inverter.

Output for the 9.8304 MHz reference oscillator

21

XOUT

1/2VCC

inverter.

Add a resistor of about 1 MΩ between XIN and

XOUT.

22

TXLPF

1.5

Connection for the 9.8-MHz PLL loop filter used in

transmission.

Equivalent circuit

A06924

Continued on next page.

No. 5651-5/9

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