TDA7427AD Просмотр технического описания (PDF) - STMicroelectronics

Номер в каталоге

Компоненты Описание

производитель

TDA7427AD

AM-FM RADIO FREQUENCY SYNTHESIZER AND IF COUNTER

STMicroelectronics 

TDA7427A

PLL COUNTER 2 (MSB)

MSB

LSB

D7

D6

D5

D4

D3

D2

D1

D0

0

0

0

0

0

0

0

0 MSB = 0

0

0

0

0

0

0

0

1 MSB = 256

0

0

0

0

0

0

1

0 MSB = 512

FUNCTION

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

PC15 PC14 PC13 PC12 PC11

Swallow mode: fvco/fsyn = LSB + MSB + 32

Direct mode: fvco/fsyn = LSB + MSB + 1

1

1

1

1

PC10

0

0

1

1

PC9

0 MSB = 64768

1 MSB = 65024

0 MSB = 65280

1 MSB = 65536

PC8 Bit name

Subddress = 02H

PLL REFERENCE COUNTER 1 (LSB)

MSB

D7

D6

D5

D4

D3

D2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

LSB

D1 D0

0

0 LSB = 0

0

1 LSB = 1

1

0 LSB = 2

1

1

1

1

1

1

0

0 LSB = 252

1

1

1

1

1

1

0

1 LSB = 253

1

1

1

1

1

1

1

0 LSB = 254

1

1

1

1

1

1

1

1 LSB = 255

RC7 RC6 RC5 RC4 RC3 RC2 RC1 RC0 Bit name

FUNCTION

Subaddress =03H

PLL REFERENCE COUNTER 2 (MSB)

MSB

D7

D6

D5

D4

D3

D2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

LSB

D1 D0

0

0 MSB = 0

0

1 MSB = 256

1

0 MSB = 512

FUNCTION

1

1

1

1

1

1

1

1

1

1

1

1

RC15 RC14 RC13

fOSC/fREF = LSB + MSB + 1

1

1

1

1

RC12

1

1

1

1

RC11

1

1

1

1

RC10

0

0

1

1

RC9

0

1

0

1

RC8

MSB = 64768

MSB = 65024

MSB = 65280

MSB = 65536

Bit name

Subddress = 04H

14/21

Share Link: