STV82X6 datasheet(45/95 Pages) STMICROELECTRONICS

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STV82x6

ACOEFF1

Channel 1 Baseband PLL Loop Filter Proportional Coefficient

BCOEFF1

Channel 1 Baseband PLL Loop Filter Integral Coefficient &

DCO Gain

FIR1C5[7:0]

0Eh

0Dh

F6h

F2h

00h

0Dh

FIR1C6[7:0]

16h

18h

F8h

06h

F2h

16h

FIR1C7[7:0]

1Bh

1Fh

4Ah

43h

4Dh

1Dh

Address (hex): 1Dh

Type: R/W

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

ACOEFF1[7:0]

Bit Name

Reset

Function

ACOEFF1[7:0]

00100011

Used to program the Proportional Coefficient of the baseband PLL loop filter (Channel 1)

Defines the damping factor of the loop. For values, refer to Table 12.

Address (hex): 1Eh

Type: R/W

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

BCOEFF1[7:0]

Bit Name

Reset

Function

BCOEFF1[7:0]

00010010

Used to program the Integral Coefficient of the baseband PLL loop filter and DCO gain

Defines the bandwidth of the loop. For values, refer to Table 12.

Table 12: Baseband PLL Loop Filter Adjustment (FM Mode)

FM Mode

Small

Standard

Medium

Large

A2 Standard

ACOEFF (hex)

10h

22h

2Ch

10h

BCOEFF (hex)

1Ah

12h

0Ah

11h

FM_DEV max (kHz)

62.5

125

250

500

125

DCO Range (kHz)

192

384

768

192

Bitfield

Description

STV82X6 数据表(PDF) 45 Page - STMicroelectronics

STV82X6 数据表(HTML) 45 Page - STMicroelectronics

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