TEA6100 Philips Semiconductors (Acquired by NXP), TEA6100 Datasheet - Page 25

• Manufacturer Part Number: TEA6100
• Description: TEA6100; Fm/if System And Microcomputer-based Tuning Interface
• Manufacturer: Philips Semiconductors (Acquired by NXP)

Philips Semiconductors
Example
The example uses the following values:
TIFF = 10,7 MHz; accuracy = LOW (G = 0); F
resolution = N1 (F = 1) and counter mode = FM (E = 1)
N1 = (0
T = 800/40 = 20 ms
N2 = (1
TDEC = 20
THEX; 1919 is hexadecimal 77F and the least significant 2 digits are 7F, so THEX = 7 F
R = 128/20 = 6400 Hz/count
Assume the readout is '6E', the measured frequency will be:
Assume the readout is '83', the measured frequency will be:
August 1987
F
F
FM/IF system and microcomputer-based
tuning interface
I
I
= 10,7
= 10,7
4
16
1
(6E
(83
10,7/128
8
5)
0
7F)
7F)
(0
[1
(1
6400 = 10,726
6400 = 10,59 MHz
4
1
247
1
0
5)
16])
0
8
79) = 1919
(0
(2
[1
2
ref
2
= 40 kHz (A = 1); IF frequency = 10, 7 MHz (D = 1);
1
0
1) = 128
1]
)
(1
25
1
0
8) = 800
Product specification
TEA6100