3.2 - Registers Controllable by Autostandard

FIR2C - FIR1C (FIR Coefficients)

Address

: 23-24-25-26-27-28-29-2A & 31-32-33-34-35-36-37-38

Type

: R/W

bit 7

bit 6

bit 5

bit 4

bit 3

bit 2

bit 1

bit 0

FIR2 or FIR1 COEFFICIENT 0

FIR2 or FIR1 COEFFICIENT 1

FIR2 or FIR1 COEFFICIENT 2

FIR2 or FIR1 COEFFICIENT 3

FIR2 or FIR1 COEFFICIENT 4

FIR2 or FIR1 COEFFICIENT 5

FIR2 or FIR1 COEFFICIENT 6

FIR2 or FIR1 COEFFICIENT 7

Each demodulator channel implements a 16 tap symetric FIR filter, each with 8 coefficients. The following

table gives the default values provided by the AUTOSTANDARD function (

∆F = 50kHz in FM mode).

Tap

Number

System I FM/NICAM

System B/G Zweiton

System B/G FM/NICAM

System L/L’ AM/NICAM

CH1

CH2

CH1

CH2

CH1

CH2

CH1

CH2

0

000

00

000

1

-2

0

-2

-2

-2

0

-2

0

2

-4

0

-4

-4

-4

-1

-4

-1

3

-3

0

-3

-3

-3

3

-3

3

4

2

-1

22

20

2

0

5

13

4

13

13

13

-12

13

-12

6

24

2024

24241024

10

7

31

3731

31316131

61

COFQ2 - COFQ1 (DCO Coarse Frequency)

Address

: 2B-39

Type

: R/W

Reset

: 0000 1100 for COFQ2 - 0000 1011 for COFQ1

bit 7

bit 6

bit 5

bit 4

bit 3

bit 2

bit 1

bit 0

0

0

CHANNEL 2 or CHANEL 1 DCO COARSE FREQUENCY

See FIFQ1/2 below for explanation.

PROGRAMMING THE DEVICE (continued)

STV8203

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