TDA7514 datasheet(31/74 Pages) STMICROELECTRONICS

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TDA7514

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

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

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

MSB

LSB

FUNCTION

Charge Pump

VCO adjust lock Disable

VCO adjust lock Enable

fref BYPASS Disable

fref BYPASS Enable

Turner/pll Am/fm Mode

Select AM mode

Select FM mode

Lock Detector Control

PD phase difference threshold 10ns

PD phase difference threshold 20ns

PD phase difference threshold 30ns

PD phase difference threshold 40ns

Not valid

Activation delay 4x1/fREF

Activation delay 6x1/fREF

Activation delay 8x1/fREF

Lock Detector On/Off

Lock detector doesn’t control charge pump

Lock detector controls charge pump

MSB

LSB

FUNCTION

0000

LSB = 0

0000

LSB = 1

0000

LSB = 2

----

1111

LSB = 252

1111

LSB = 253

1111

LSB = 254

1111

LSB = 255

MSB

LSB

FUNCTION

0000

MSB = 0

0000

MSB = 256

0000

MSB = 512

----

1111

MSB = 64768

1111

MSB = 65024

1111

MSB = 65280

1111

MSB = 65536

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

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