RM-1100 RM-1100

LIQUID CRYSTAL DISPLAY (LCD)

1)The common and segment terminals of the LCD are connected in the following way:

A

F

il-I::EI::EI~IOI~

8<n!L«<n-l-

3) Explanation of each terminal

Pin No. ISymbol

Description

1I UD I Output condition switching input terminal. This terminal sets the display output mode (LED, FL, or LCD).

LED Make this terminal "H" level.

FL Make this terminal "L" level. LCD Apply AC voltage to this terminal.

2Data I Receiving frequency data input terminal.

A data signal containing the receiving frequency and band is sent to this terminal from pin 22 of IC7 (RVITC9137P) each time the receiving frequency is changed.

Pin No. ISymbol1

Description

 

~..:=:::.--

21-27 I a1-g1 1 7-segment drive output terminal.

This output terminal for enabling display of the digit corresponding to units of 100 kHz in the FM mode and the digit corresponding to units of 1 kHz in the AM mode.

28 Vss I Power supply terminal (5V).

."$

j

 

 

 

 

u

Al.M

~ $

:E

F M

 

o

 

 

 

 

 

 

Fig. 22

 

 

 

2) Output signal waveforms of LCD segment

Fig. 22-1 indicates the timing chart of LCD operation.

 

Phase of segment

Segments of LCD

No.

signal vs. common

 

signal

 

 

 

 

1

Oposite

ON

 

 

 

2

Same

OFF

 

 

 

~~ ~

Ia2 I

I _lId2192

IC403 1'- 0 c2"1- __

Pin 20 (a2) 1'tlliIWlJ

Pin 19 (b2) ~

Pin 18 (c2) I~~

Pin 17 (d2) ~

Pin 16 (e2) l..J-Lri

Pin 15 (f2) J-u-1

II

Pin 13 (92) 1---uL!

COM 2 :~

r : Fig. 22-1

01 02 D4 DB 016 032064DI28D2S6D51201024LWFMJFMUAM9AM10

 

 

Dala

 

 

 

 

 

 

 

8

Flequency DaUl

 

 

 

 

 

 

".--------11----

 

 

 

 

 

a-'OO~see

 

 

 

 

 

A data signal is composed of 16 bits. Eleven bits

 

 

are assigned for frequency data and the remain-

 

 

ing 5 bits are assigned for the reception bands.

 

 

 

 

 

3,4

CK1,

Receiving frequency data input control timing

 

CK2

input terminal.

 

 

 

 

 

 

 

Each time a data signal is sent, a timing signal is

 

 

concurrently sent from pins 20 and 21 of IC7 to

 

 

this terminal, to read the data signal.

 

 

 

 

Two lines (CK-1 and CK-2) are used for timing

 

 

the data signal reading. They have the following

 

 

timing relationship with the data signal.

 

 

 

 

01

02

04

 

 

 

OaI8 ------- "[

 

 

 

eI

-~---;:."

RVITD6301AP (IC403): EACH TERMINAL FUNCTION &

WAVEFORM

1) Terminal View

 

2) Block Diagram

L/D

 

 

 

Vcc

 

Data

 

 

 

01

 

CKI

 

 

 

bl

 

CK2

 

 

 

cl

DATA

I/O

 

 

 

dl

CK I

 

 

 

 

g3

 

 

 

el

CK2

 

 

 

 

f3

 

 

 

f I

 

e3

 

 

 

gl

 

d3

 

 

 

02

 

c3

 

 

 

b2

 

b3

 

 

 

c2

 

03

 

 

 

d2

 

g2

 

 

 

e2

 

GND

I 114

f2

Fig. 24

 

 

Fig. 23

 

 

 

 

CK,

 

CK>

 

 

5

I/O I Segment drive output terminal.

 

This output terminal enables display of the digit

 

corresponding to units of 100 MHz in the FM

 

mode and the digit corresponding to units of

 

1000 kH in the AM mode.

6-12 I a3-g31 7-segment drive output terminal.

This output terminal enables display of the'digit corresponding to units of 10 MHz in the FM mode and the digit corresponding to units of 100 kHz in the AM mode.

13.15-201 a2-g2 1 7-segment drive output terminal.

This output terminal enables display of the digit corresponding to units of 1 MHz in the FM mode and the digit corresponding to units of 10kHz in the AM mode.

14 I GND I Ground terminal.

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Panasonic RM-1100 Liquid Crystal Display LCD, RVITD6301AP IC403 Each Terminal Function Waveform, Off, CKI CK2

RM-1100 specifications

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