TDA7514 查看數據表（PDF） - STMicroelectronics

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TDA7514

SINGLE-CHIP FM/AM TUNER WITH STEREO DECODER AND AUDIO PROCESSOR

STMicroelectronics 

TDA7514

Table 16. SUBADDRESS 1: PLL Lock detector, FM mode and test

MSB

LSB

FUNCTION

D7

D6

D5

D4

D3

D2

D1

D0

Charge Pump

0 VCO adjust lock Disable

1 VCO adjust lock Enable

0

fref BYPASS Disable

1

fref BYPASS Enable

Turner/pll Am/fm Mode

0

Select AM mode

1

Select FM mode

Lock Detector Control

0

0

PD phase difference threshold 10ns

0

1

PD phase difference threshold 20ns

1

0

PD phase difference threshold 30ns

1

1

PD phase difference threshold 40ns

0

0

Not valid

0

1

Activation delay 4x1/fREF

1

0

Activation delay 6x1/fREF

1

1

Activation delay 8x1/fREF

Lock Detector On/Off

0

Lock detector doesn’t control charge pump

1

Lock detector controls charge pump

Table 17. SUBADDRESS 2: PLL Counter 1 (LSB)

MSB

D7

D6

D5

D4

D3

D2

D1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1

-

-

-

-

-

-

-

1

1

1

1

1

1

0

1

1

1

1

1

1

0

1

1

1

1

1

1

1

1

1

1

1

1

1

1

LSB

D0

0

1

0

-

0

1

0

1

LSB = 0

LSB = 1

LSB = 2

-

LSB = 252

LSB = 253

LSB = 254

LSB = 255

FUNCTION

Table 18. SUBADDRESS 3: PLL Counter 2 (MSB)

MSB

D7

D6

D5

D4

D3

D2

D1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1

-

-

-

-

-

-

-

1

1

1

1

1

1

0

1

1

1

1

1

1

0

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Note: 1 Swallow mode:fVCO/fSYN = LSB + MSB + 32

LSB

D0

0

1

0

-

0

1

0

1

MSB = 0

MSB = 256

MSB = 512

-

MSB = 64768

MSB = 65024

MSB = 65280

MSB = 65536

FUNCTION

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