TS-440S

SEMICONDUCTOR

e MB4052

PC 5

Co CI 7~J7

®Comparato r

D

IF-SHIFT -

R IT -

AI

 

Lam,

 

O

 

, Multi _

 

 

~

Comparato r

r

 

 

 

 

Ag o

D I

ple

Resistor

 

Not us e

 

 

 

 

L

A3

 

 

 

7800

 

PC7

12 ADC CLK

PC 6

le

8255 (IC2 )

+5v

 

 

 

8 bi t

RS

 

 

 

DA C

 

EX . 2

 

 

 

 

Regulator

v CC I

 

 

EX.!

 

 

 

 

 

 

 

2 .5 K

 

 

 

 

6

S

O

 

 

 

 

 

 

VccI

Vcc2

A .G

D.G

 

MB4052 Pin Descriptio n

I/O Signal Pin Function s

Pin No .

Pin Name

Symbol

2

Range expande r

Ex .

2

 

input

Ex .

1

3Range expande r output

4—7

Analog entrance

Ao—A 3

9

Channel select input

C o

10

 

C,

11

Chip select input

CS

12

A/D convertio n

AD C

 

clock

CLK

13

Data output

DATA

 

 

OUT

Functio n

Analog input pin for expanding the range .

Analog output pin for expanding the range . Connect to any pin from AO to A3 . By using Ex . 1, Ex . 2, the range is expanded to the x4 range .

4-ch analog input pin . Channel 1 is selected by channel select input CO to Cl .

The input pin to designate the analog input channel for A/D converter . This signal is latche d at the trailing edge of CS .

This is the chip select input pin . When CS is inverted from "1" to "0", A/D convertin g starts and data output is enabled . After A/D converting is over or when an interrupt is re - quired, set the CS back to "1" .

This is the clock input pin for A/D convertion input to the comparator register sequentially . Convertion speed is determined by the clock speed . In the case of 8-bit, approx . 10 clock s will be needed . However, it is not necessary that the clock period be fixed .

This is the open collector to output the result of A/D convertion . The data is output in th e order of the start bit, most significant bit, 2nd significant bit, . . ., least significant bit, an d the stop bit, synchronized with ADCCLK .

14

Range select input

RS

This is the input pin for selecting the voltage range of analog input . The VFS=Vcc,/8 rang e

 

 

 

is selected at "0", and the range of FVS=Vcc,i2 is selected at "1" . During convertion ,

 

 

 

hold this pin to "0" or "1" .

1

Analog groun d

A . G

8

Digital ground

D .G

1 5

Power supply pin 2

Vcc 2

16

Power supply pin 1

Vcc 1

Ground termina l

When driving with 3 .5 to 6 .0 V of power, connect Vcc, and Vcc 2 to each other, and appl y the power voltage to them .

When driving 8 to 18 V of power, apply the power voltage to Vcc 2 . At this time, the 5 V stabilized voltage is output to Vcc,, and approx . 10 mA current can be supplied externall y to the IC .

When either 3 .5--6 .0 V or 8— 18V power is used, Vcc, is the reference voltage for A/ D convertion .

• Channel Select

Range select

• Wiring example when expanding the rang e

 

 

 

 

 

C ,

C o

Selected Ch .

RS

'Convertion vol -

 

tage rang e

 

 

 

 

 

0

0

A o

 

 

 

Vcc ,

 

0

1

A ,

0

 

0—' 8

 

1

0

A 2

 

Vcc ,

 

1

1

A 3

1

 

0--'

 

 

 

 

 

2

 

 

 

 

 

 

MB4052

29

Page 29
Image 29
Kenwood YK-88CN, PS-50, SP-430, PS-430, MB-430, AT-440 MB4052 Pin Descriptio n Signal Pin Function s, Ad C, Clk, Data, Out

SP-430, VS-1, PS-430, AT-440, YK-88C specifications

The Kenwood MB-430, PS-50, YK-88S, YK-88CN, and YK-88SN are notable components that enhance the capabilities of Kenwood's transceiver products, particularly in the amateur radio segment. Each of these units plays an essential role in expanding functionality, improving performance, and providing users with valuable features that are beneficial in various communication scenarios.

Starting with the Kenwood MB-430, it serves as a versatile mobile bracket designed for specific Kenwood radio models. The MB-430 enhances mobility, allowing operators to mount their radios securely in vehicles or portable setups. Its sturdy construction ensures reliability during operation, and it offers a simple installation process, making it user-friendly for both beginners and seasoned enthusiasts.

The PS-50 power supply is a crucial accessory that complements Kenwood's transceiver line. This power supply is known for its compact design, providing 13.8 V DC output, which is essential for powering radios effectively. With a current rating that adequately supports various transceivers, the PS-50 is equipped with short-circuit protection and thermal overload features. These safety mechanisms protect both the power supply and the connected equipment, making it a dependable choice amongst operators.

The YK-88S, YK-88CN, and YK-88SN are all filters that enhance the performance of Kenwood transceivers. The YK-88S is a high-performance SSB filter, designed to improve the clarity of SSB signals while reducing adjacent channel interference. It offers narrow bandwidth options that facilitate more precise tuning, making it particularly valuable in crowded band conditions.

Meanwhile, the YK-88CN is known for its crystal filter technology, optimizing the transceiver's performance for CW and digital modes. This filter helps in eliminating unwanted noise, allowing operators to enjoy clearer reception and improved decoding of weak signals.

The YK-88SN, similar in function to the YK-88S and YK-88CN, provides additional narrow filtering options, enhancing the agility of transceiver operation in various modes. It effectively enhances selectivity and reduces interference from strong signals, providing a cleaner audio output.

Together, these components contribute to a seamless operating experience for amateur radio enthusiasts. Whether enhancing filter characteristics, providing reliable power, or ensuring secure mobility, the MB-430, PS-50, YK-88S, YK-88CN, and YK-88SN demonstrate Kenwood’s commitment to quality and performance in the radio communications field.